U-PAD2 - External USB A/D Converter

U-PAD is an external 24-bit A/D converter for the USB. The U-PAD2 is a predecessor of the Colibrick A/D converter. Discontinued from sale as of January 2013 .

Discontinued from sale as of January 2013.

U-PAD2 is an external 24-bit A/D converter that measures the voltages of chromatographic and electrochemical detectors. Integration frequency up to 400 Hz enables Fast GC application.

U-PAD2 uses the USB communication channel and thus is directly powered from the PC. The unit can be connected or disconnected anytime without the necessity to switch the computer off. The input connector is compatible with the internal INT7 board.

U-PAD2 - External USB A/D Converter

Upgrade options    

Accessories:

  • Cable p/n KB72
  • USB cable p/n SK10

Specification

  U-PAD2
Converter type

24 bit integrating, delta-sigma

Analog inputs differential
Number of channels 2 fully independent, isolated from USB,
(inputs share common ground)
Input impedance >1 MOhm
Input range unipolar or bipolar, each channel independentely switchable to 156.26, 1 250 or 12 123 mV
Integration frequency
(Sample Rate)
6.25, 12.5, 25, 50, 100, 200, 400 samples per second for 50 Hz mains frequency filter
7.5, 15, 30, 60, 120, 240, 480 samples per second for 60 Hz mains frequency filter
Non-linearity  
Temperature dependence  
Digital inputs 2 TTL (5 V)
Digital outputs 2 TTL (5V, maximum current load 20 mA), also as relay contacts (switching contacts rating: max. switching current 0.5 ADC, max. contact resistance 150mOhm, max. voltage 100V)
Dimensions 100 x 55 x 16 mm (w x h x d)
Weight 110 g
PC interface USB
Power supply from the PC via the USB cable

Typical noise free resolution for various acquisition speeds and input ranges:

  12 123 mV 1 250 mV 156 mV
6.25 Hz 21 bit 21 bit 20 bit
25 Hz 21 bit 21 bit 20 bit
100 Hz 19 bit 19 bit 19 bit

Possible combinations:

  Windows 10
(32 and 64 bit)
Windows 8.1
(32 and 64 bit)
Windows 7SP1*
U-PAD2 Clarity
Clarity Lite
both from version 6.2
Clarity
Clarity Lite
both from version 4.0.3
Clarity
Clarity Lite
both from version 2.5

* From Clarity (Lite) 3.0 the 64-bit OS is supported.

Combinations with obsolete operating systems

  Windows VistaSP2* Windows XPSP3 Windows 2000
U-PAD2 Clarity, Clarity Lite
both from version 2.5 until 7.2
Clarity
Clarity Lite
both from version 2.4.4 to 7.4.1
Clarity, Clarity Lite
both from version 2.4.4 to 3.0

* From Clarity (Lite) 3.0 the 64-bit OS is supported.