UniAmp Single Channel
With the UniAmp Single Channel, you get our most cost-effective solutions with dedicated channel configuration for O2, pH/mV, H2, N2O, and H2S. You should consider the UniAmp Multi Channel, if you need multiple sensors or a system that is more flexible for future applications. Read more...
Amplifier solutions with unique features
- Temperature compensation of sensor data
 - E2PROM recognition of unique sensor data
 - USB-powered
 - Cost-effective solutions for dedicated measuring needs
 - Easy-to-use, simple, and smart
 
UniAmp Single Channel is available in various configurations with dedicated channels for O2, pH/mV, H2, N2O, or H2S. All versions include one channel for a temperature sensor for temperature compensation of data.
The amplifier is USB powered, and the sensors immediately polarize when connected. Connect the UniAmp to your PC to automatically initiate the Windows service app. In the app, you can quickly review raw data and amplifier settings. You can calibrate and log data via our uSense Solutions apps.
Temperature compensation
Sensor temperature compensation was once reserved for optical sensors. However, based on long-time in-house data temperature compensation is available for our O2, N2O, H2, and H2S microsensors.
The compensation covers +/- 3°C from calibration point, thus ensuring you better data. With a standard sensor coefficient of 2-3% per degree Celsius, small sample temperature changes from calibration point of a few degrees will result in considerable errors. With our temperature compensation algorithm, the system will compensate and ensure more accurate data.
Each sensor comes with a factory value for temperature compensation, but you can measure your own value for the sensor and apply this value.
                                                
                                                
                                                
                                            E2PROM sensor connectors
The 10 pin E2PROM sensor connector reads important information about sensor type, sensor configurations, serial number, calibration data, and the unique value for individual temperature compensation. User calibration can also be stored on the E2PROM to save time during setup and provide flexibility for using multiple sensors and amplifiers. All E2PROM information is read by the UniAmp ensuring correct sensor polarization and setup. Data are transferred to our uSense Solutions software for enhanced user experience and experimental documentation.
The new connector format allows for support of our specialized sensors like the STOX sensor for measuring ultra-low (<5nM) oxygen concentrations.
                                                
                                                
                                                
                                            | Attribute | Standard | 
|---|---|
| 
                                                         
                                                          Attribute                                                         
                                                        
                                                          Dimensions                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          225 x 165 x 50 mm (W x D x H)                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Attribute                                                         
                                                        
                                                          Weight                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          Approx. 1.4 kg (3.1 lbs)                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Attribute                                                         
                                                        
                                                          Temperature range                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          Operating conditions 0°C - 50°C (<90% RH non-condensing)                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Attribute                                                         
                                                        
                                                          Warranty                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          1 year                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Attribute                                                         
                                                        
                                                          Certification                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          CE                                                         
                                                     | 
                                                  
                                        
| Picoampere | pH/mV | Temperature | Pressure | |
|---|---|---|---|---|
| 
                                                         
                                                          Sensor                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          Snap connector 10 pin                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          Snap connector 10 pin                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          Snap connector 4 pin                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          Built-in                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Reference (for mV channels)                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          Banana plug on the cable                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Grounding                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          Banana plug                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          Banana plug                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          Banana plug                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          Banana plug                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Polarization                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          Digitally adjustable                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Polarization range                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          ±1.8 V                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Input range                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          ±500 pA - 500 nA                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          ±5000 mV                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          -10 to 100°C                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          300-1,200 mbar                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Input impedance                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          >10¹³ Ohm                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                  
                                        
| Picoampere | pH/mV | Temperature | Pressure | |
|---|---|---|---|---|
| 
                                                         
                                                          Power supply                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          USB                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          USB                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          USB                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          USB                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Specification                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          5V@500 mA (Max 350 mA draw)                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          5V@500 mA (Max 350 mA draw)                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          5V@500 mA (Max 350 mA draw)                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          5V@500 mA (Max 350 mA draw)                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Resolution                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          16 bit                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          16 bit                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          16 bit                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          24 bit                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Sampling frequency                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          Digitally adjustable                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          Digitally adjustable                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          Digitally adjustable                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          Digitally adjustable                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          - Default                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          1 Hz                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          1 Hz                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          1 Hz                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          0.2 Hz                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          - Maximum                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          20 Hz                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          20 Hz                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          20 Hz                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          0.2 Hz                                                         
                                                     | 
                                                  
                                        
| Picoampere | pH/mV | Temperature | Pressure | |
|---|---|---|---|---|
| 
                                                         
                                                          Response time (90%)                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          <35 msec.                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          <35 msec.                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          <35 msec.                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          <5 sec.                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Signal gain factor adjustment                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          0.1, 1, 10, 100                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          0.1, 1, 10, 100                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          0.1, 1, 10, 100                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          0.1, 1, 10, 100                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Signal offset adjustment                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Picoampere                                                         
                                                        
                                                          ±1 V                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          pH/mV                                                         
                                                        
                                                          ±1 V                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Temperature                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Pressure                                                         
                                                        
                                                          N/A                                                         
                                                     | 
                                                  
                                        
| Feature | Standard | 
|---|---|
| 
                                                         
                                                          Feature                                                         
                                                        
                                                          Digital interface                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          USB                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Feature                                                         
                                                        
                                                          Analog In                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          2 channels 0-3.3V, 16 bit ADC (optional)                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Feature                                                         
                                                        
                                                          Analog Out                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          6 Channels 0-4V scaled or unscaled                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Feature                                                         
                                                        
                                                          Digital I/O                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          5 I/O optional                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Feature                                                         
                                                        
                                                          SensorTrace Logger                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          Included                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Feature                                                         
                                                        
                                                          Other Unisense Software                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          Optional: uSense Profile                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Feature                                                         
                                                        
                                                          Data rate                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          Default 1 samples/sec.                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Feature                                                         
                                                        
                                                          Software data output                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Standard                                                         
                                                        
                                                          CSV, Excel or SQL file                                                         
                                                     | 
                                                  
                                        
| Product | Description | 
|---|---|
| 
                                                         
                                                          Product                                                         
                                                        
                                                          O2 UniAmp                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Description                                                         
                                                        
                                                          1x pA for Oxygen, 1x Temp channel                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Product                                                         
                                                        
                                                          pH/Redox UniAmp                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Description                                                         
                                                        
                                                          1x mV for pH and Redox, 1x Temp channel                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Product                                                         
                                                        
                                                          H2 UniAmp                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Description                                                         
                                                        
                                                          1x pA for Hydrogen, 1x Temp channel                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Product                                                         
                                                        
                                                          N2O UniAmp                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Description                                                         
                                                        
                                                          1x pA for Nitrous Oxide, 1x Temp channel                                                         
                                                     | 
                                                  
                                        
| 
                                                         
                                                          Product                                                         
                                                        
                                                          H2S UniAmp                                                         
                                                     | 
                                                                                                    
                                                    
                                                         
                                                          Description                                                         
                                                        
                                                          1x pA for Sulfide (H2S and SULF), 1x Temp channel                                                         
                                                     | 
                                                  
                                        
Text Guides
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