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Net-PAD

Net-PAD is an external high resolution A/D converter for chromatography data acquisition.

Net-PAD communicates with a PC over Ethernet through a TCP/IP protocol. Clarity Chromatography Station, configured with Net-PAD converter, enables users to acquire chromatography data from distant instruments without the necessity of installing additional cables. Net-PAD is compatible with any GC, HPLC, GPC, IC, CE system with standard analog output. The Clarity Chromatography Station can handle any combination of available DataApex converters (internal PCI, external USB and TCP/IP).

Technical data:

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

Analog inputs	symmetrical, mutually isolated

Number of A/D channels	2

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

Input impedance	1 MOhm

Conversion time	50 Hz rejection: 10, 20, 40, 80, and 160 ms 60 Hz rejection: 8.3, 16.7, 33.3, 66.7, and 133.3 ms

Non-linearity	< 0.0007 %

Temperature dependence	< 10 ppm/°C

Digital inputs	4 TTL (5 V), the first two can be controlled using the built-in opto-electronic unit (2-5 mA current)

Digital outputs	8 TTL (5V, maximum current load 30 mA), the first four control relays (100 V/0.5 A)
Auxiliary ports	2x RS232 serial communication

Dimensions	133 x 105 x 21 mm (W x H x D)

External power supply	6 V/250 mA
	Net-PAD

Network Communication:

	Net-PAD
Protocol	TCP/IP

IP Address	configurable

Ethernet (LAN)	10Mb/sec

Connector	RJ-45 (twisted pair)
	Net-PAD

Possible combinations:

	WIN XP	WIN 2000	WIN NT	Win 98, Me
Net-PAD	Clarity Clarity EA	Clarity Clarity EA	X	X
	WIN XP	WIN 2000	WIN NT	Win 98, Me

A/D CONVERTErs

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