U-PAD - External USB A/D Converter

U-PAD

U-PAD is an external measuring unit for the CSW32 and Clarity stations designed for acquiring data from any chromatograph. U-PAD uses a USB communication channel and thus is directly powered by the PC.

The unit can be connected or disconnected anytime without having to shut down the computer. The unit contains two independent channels, with the latest 24-bit A/D converters, capable of higher effective resolution, especially at higher frequencies and at lower voltage ranges. The input connector is compatible with the internal INT7 board.

U-PAD has been discontinued from sale since 2007.

Upgrade options

There is generally no need to upgrade to the successor of this A/D converter the U-PAD2.

Next steps

Technical data:

	U-PAD
Converter type	24 bit integrating, sigma - delta

Analog inputs	differential

Number of channels	2, isolated from USB, (inputs share common ground)

Input range	unipolar and bipolar, each channel independently 156, 1250 or 12560 mV

Input impedance	1 MOhm

Integration frequency (Sample Rate)	50 Hz rejection: 6.25, 12.5, 25, 50, and 100 Hz 60 Hz rejection: 7.5, 15, 30, 60, and 120 Hz

Non-linearity	< 0.0015 %

Temperature dependence	< 10 ppm/°C

Digital inputs	2 TTL (5 V), can be controlled using the built-in opto-electronic unit (5 mA current)

Digital outputs	2 TTL (5V, maximum current load 20 mA), also as relay contacts(100 V/0.5 A)

Dimensions	100 x 55 x 16 mm

Weight	110 g

Power supply	from the PC via the USB cable

	U-PAD

Effective resolution for various acquisition speeds and input ranges:

	10 V	1 250 mV	156 mV
6.25 Hz	22 bit	22 bit	20 bit

12.5 Hz	21 bit	21.5 bit	20 bit

50 Hz	20.5 bit	21 bit	19 bit

100 Hz	20 bit	20 bit	18.5 bit
	10 V	1 250 mV	156 mV

Possible combinations:

	WIN 7 , Vista	WIN XP, 2000	WIN NT	Win 98, Me
U-PAD	Clarity Clarity Lite	Clarity Clarity Lite CSW32	X	X
	WIN 7 , Vista	WIN XP, 2000	WIN NT	Win 98, Me

* 64-bit OS versions are not supported.

Last updated: 2010-09-03 | webmaster

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