Spectrex Series 300 Open-Path Gas Detection System - Manual (Page 49)

Spectrex Inc. - SafEye TM 300 Gas Detector Manual – TM 794100, Rev. D, May 2004
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5.7 Light Source Wiring
5.7.1 Power Supply
Input power is supplied to terminal 1.
The return is connected to terminal 2 (see figure 14).
Note
Ensure that the Light Source unit will receive a minimum of 18 Volts DC and
does not exceed 32 Volts DC.
Pre-wiring requirements and wiring requirements are identical to the appropriate
requirements for the detector, as described in appendix A.
5.7.2 Harness Connection (Figure 13)
The instructions for this are identical to the detector. Refer to section 5.6.2
5.7.3 Terminal Wiring (Table 6)
The Light Source contains a terminal board. Terminal Wiring Instructions are
identical to the Detector Wiring instructions. The Light Source consists of two
wires only. The Positive supply power connected to terminal 1, and the common
return connected to terminal 2.
Connect the Grounding Cable to the Ground Terminal (Figure 14, item 4) outside
the Light Source cover (Figure 14, item 2). The detector must be well grounded
to Earth Ground for proper operation.