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

Spectrex Inc. - SharpEye TM Hydrogen (SH) Flame Detector Manual – TM 784600, Rev. A, May 2005
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4.3.1 Function Setup
The user can select the desired mode of operation by means of host.
Table 6: Function Setup
Name Yes No
1 Alarm Latch Alarm latching enable Alarm latching disable
(default)
2 Accessory Relay Accessory Relay activate at
warning level
Accessory Relay activate
at Alarm level (default)
3 Automatic BIT Automatic & manual bit
(default) Manual bit only
4 Alarm BIT Successful manual bit
activates the Alarm Relay for
approximately 3 seconds
(default) Successful manual bit
does not activate the
Alarm Relay
5 Accessory BIT Successful manual bit
activates the Accessory Relay
for approximately 3 seconds
(default) Successful manual bit
does not activates the
Accessory Relay
6 EOL Accessory Relay is used as
End of Line Accessory Relay operates
in accordance with
Function 2 and 5 (default)
4.3.2 Sensitivity Ranges
The detector offers four (4) sensitivity settings. The settings refer to the Hydrogen
plume fire with 20” (0.5m) height and 8” (0.2m) width, from low sensitivity of 16 ft.
(5m) to 100 ft. (30m). For other types of fuel sensitivity, refer to table 2.
Table 7: Sensitivity range
## Sensitivity
1 16 ft. (5m)
2 33 ft. (10m)
3 66 ft. (20m)
4* 100 ft. (30m)
* Default