Spectrex 20/20R - Single IR Flame Detector - Manual (Page 52)

Spectrex Inc. - SharpEye TM Single IR Flame Detector Manual – TM 20/20R, Rev. A January2005
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Figure 16: 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.