Spectrex 20/20CTIN-CTIP Flame Detector - Manual (Page 51)

Spectrex Inc. - SharpEye TM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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Figure 14: 4-20mA wiring
Notes:
The detectors are factory set to isolated 4-20mA ‘sink’ version.
To work at non-isolated 4-20mA version (source), connect Terminal 12 to Terminal
1. The 4-20mA meter is connected between Terminal 11 and Terminal 2.