Spectrex 20/20SH - Hydrogen Flame Detector - Manual (Page 37)

Spectrex Inc. - SharpEye TM Hydrogen (SH) Flame Detector Manual – TM 784600, Rev. A, May 2005
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• 4-20mA Output (Terminal Numbers 11, 12):
Terminal Numbers 11 and 12 are used for analog, 4-20mA current output as
specified in paragraph 4.e
Terminal No. 11 - output Terminal.
Terminal No. 12 - input Terminal (see appendix B for more details)
• RS-485 (Terminal Numbers 13, 14):
Terminal Numbers 13 and 14 are used for communication network as specified
in appendix C.
Terminal No. 13 - positive (+) lead.
Terminal No. 14 - negative (-) lead.
Figure 10: Terminal Board