Spectrex 20/20SH - Hydrogen Flame Detector - Manual (Page 40)

Spectrex Inc. - SharpEye TM Hydrogen (SH) Flame Detector Manual – TM 784600, Rev. A, May 2005
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6.8 Operation Mode
When wiring is completed the operational mode can be selected.
Mode selection is achieved through RS-485 using a PC with a Spectrex Host.
Refer to TM784050.
Programmable Function:
Modes of operation are programmable with a PC or Handheld unit according to the
selection table in Paragraph 4.3.1 and Refer to TM 784050.
Address:
The detector has the capability of acting as an addressable device.
The detector provides 247 addresses, which can be used by the RS-485
communications link as described in paragraph 4.3.4 and Refer to TM 784050.
Alarm Delay:
An Alarm Delay may be required for certain applications. The detector has an
Alarm Delay that permits time delays from 0, anti-flare, 3, 5, 10, 15, 20 and 30
seconds respectively. The delay can be defined by the RS-485. See paragraph
4.3.3 and refer to TM 784050.