fx-6 UniAmp
fx-3 UniAmp
x-5 UniAmp
UniAmp back
fx-6 and fx-3 include channel for microoptode
Built-in temperature compensation
USB-powered
E2PROM sensor connector

UniAmp Multi Channel

Amplifier portfolio for all Unisense sensors and electrodes including optical sensors

The UniAmp range of amplifier solutions provides open channel configuration and a full level of user friendliness and performance. With the fx-6, fx-3, and x-5 systems, you get our most flexible solutions that meet your needs today and in future applications. Read more...

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Technical Data
Interface and Software
Ordering Information
Manuals & Videos
UniAmp Multi

Connect all sensors

  • Temperature compensation of sensor data
  • E2PROM recognition of unique sensor data
  • USB-powered
  • fx-6 UniAmp with support for ALL Unisense microsensors
  • Ease-of-use, Simple and Smart!

UniAmp Multi Channel is available with channels for amperometric sensors (O2, NO, H2, H2S, N2O), for potentiometric sensors (pH and Redox), and for optical oxygen (OPTO) sensors. All versions include one channel for a temperature sensor needed for temperature compensation of data. When you connect the sensors, they will immediately polarize.

The amplifiers are USB powered. 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 SensorTrace Suite apps.

Temperature compensation

Sensor temperature compensation is available for most of our microsensors. The compensation covers +/- 3°C from calibration point to ensure the quality of your 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 and apply your own value for the sensor.

UniAmp Temp Comp._1400x800

OPTO channel

The fx-6 and fx-3 UniAmp include an optical channel for our OPTO sensors. This gives you the most flexibility, as you can choose amperometric oxygen or optical oxygen depending on your given application. With the fx-6 UniAmp, Unisense offers you the only solution available for all microsensor technologies in one unit.

E2PROM sensor connectors

fx-3 UniAmp_700x400

The 10 pin E2PROM sensor connector can read important information about sensor type, sensor customizations, 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 SensorTrace Suite 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.

Eeprom_700x400
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Characteristics
Input and Amplifier
Power and A/D Converter
Response and Signal
Characteristics
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
Input and Amplifier
Picoampere pH/mV Optical Temperature Pressure
Sensor
Picoampere
Snap connector 10 pin
pH/mV
Snap connector 10 pin
Optical
Optical ST
Temperature
Snap connector 4 pin
Pressure
Built-in
Reference (for mV channels)
Picoampere
N/A
pH/mV
Banana plug on the cable
Optical
N/A
Temperature
N/A
Pressure
N/A
Grounding
Picoampere
Banana plug
pH/mV
Banana plug
Optical
Banana plug
Temperature
Banana plug
Pressure
Banana plug
Polarization
Picoampere
Digitally adjustable
pH/mV
N/A
Optical
N/A
Temperature
N/A
Pressure
N/A
Polarization range
Picoampere
±1.8 V
pH/mV
N/A
Optical
N/A
Temperature
N/A
Pressure
N/A
Input range
Picoampere
±500 pA - 500 nA
pH/mV
±5000 mV
Optical
N/A
Temperature
-10 to 100°C
Pressure
300-1,200 mbar
Input impedance
Picoampere
N/A
pH/mV
>10¹³ Ohm
Optical
N/A
Temperature
N/A
Pressure
N/A
Power and A/D Converter
Picoampere pH/mV Optical Temperature Pressure
Power supply
Picoampere
USB
pH/mV
USB
Optical
USB
Temperature
USB
Pressure
USB
Specification
Picoampere
5V@500 mA (Max 350 mA draw)
pH/mV
5V@500 mA (Max 350 mA draw)
Optical
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
Optical
16 bit
Temperature
16 bit
Pressure
24 bit
Sampling frequency
Picoampere
Digitally adjustable
pH/mV
Digitally adjustable
Optical
Digitally adjustable
Temperature
Digitally adjustable
Pressure
Digitally adjustable
- Default
Picoampere
1 Hz
pH/mV
1 Hz
Optical
1 Hz
Temperature
1 Hz
Pressure
0.2 Hz
- Maximum
Picoampere
20 Hz
pH/mV
20 Hz
Optical
1 Hz
Temperature
20 Hz
Pressure
0.2 Hz
Response and Signal
Picoampere pH/mV Optical Temperature Pressure
Response time (90%)
Picoampere
<35 msec.
pH/mV
<35 msec.
Optical
<1 sec.
Temperature
<35 msec.
Pressure
<5 sec.
Signal gain factor adjustment
Picoampere
0.1, 1, 10, 100
pH/mV
0.1, 1, 10, 100
Optical
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
Optical
N/A
Temperature
N/A
Pressure
N/A
Interface and Software
Interface and Software
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: SensorTrace Profiling
Feature
Data rate
Standard
Default 1 samples/sec.
Feature
Software data output
Standard
CSV, Excel or SQL file
Ordering information
Ordering information
Product Description
Product
fx-6 UniAmp
Description
2x pA, 2x mV, 1x Temp, and 1x Opto channel
Product
fx-3 pA UniAmp
Description
1x pA, 1x Temp, and 1x Opto channel
Product
fx-3 mV UniAmp
Description
1x mV, 1x Temp, and 1x Opto channel
Product
x-5 UniAmp
Description
2x pA, 2x mV, and 1x Temp channel
Product
Customized fx-6 or x-5 UniAmp
Description
Customized channel configuration against a fee