Clarity INT9 manual Connecting Clarity to chromatograph

Clarity - INT9 A/D converter Installation

Digital output (Relay)
Starting cable	Red
	Shielding	START (REMOTE, …)

Signal cable	Red
	White

Shielding

NONSYMMETRICAL CONNECTION

1V (100mV, Hi, +, …)

0 (COM, AGND, …)

Digital output (Relay)
Starting cable	Red
	Shielding	START (REMOTE, …)

Signal cable	Red
	White

Shielding

SYMMETRICAL CONNECTION

+(+1V, Hi, …) - (-1V, Lo, …)

COM (0, GND)

Fig. 2. Connecting Clarity to chromatograph

2.3.1Connecting signal cables:

Signal inputs of the A/D converters are symmetrical: + (red), - (white) and analogue ground (copper braiding).

Caution! Shielding must be connected. It serves not only as the shielding but also as the analogue earth against which the measurement takes place. In the case of asymmetrical output of a detector (only two connectors) the shielding must be connected to the white lead! No lead of the signal cable may remain unconnected.

Try to connect to the detector output of the chromatograph with the largest possible signal level, usually indicated as INTEGRATOR (signal approx. 1V). The level of the signal on the output marked RECORDER is usually only approx. 10mV.

For easier alterations of the wiring, we supply a SV8 Terminal board with screw contacts for INT7, INT9, U-PAD,U-PAD2and Net-PADA/D converters.

Note: This SV8 Terminal Board is not suitable for applications with small signals or with high electromagnetic interference. This is because the SV8 Terminal Board uses leads and screw contacts that are not shielded.

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