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4.1
Table 1—Range and Default Values for Alarms and Calibration Gas Concentration
Notes: All values are a percentage of full scale with the exception of Oxygen, which is the actual percent of Oxygen, and
OPECL, which is the value in LFL-meters.
Low alarm must be less than or equal to the high alarm.
Changing the Measurement Range will reset all alarm and Cal Gas values to the default settings for the selected range.
Alarm relays are selectable for either normally energized or normally de-energized coils, with selectable latching or
non-latching contacts. Fault relay is normally energized (with no faults).
*Does not support C7064C hydrogen sulde or C7065E oxygen, but includes C7064E hydrogen sulde,
C7067E chlorine, C7066E carbon monoxide, and C7068E sulfur dioxide.
UD10 ALARM DATA CALIBRATION
Gas Detector High Alarm Value Low Alarm Value Aux alarm Value Cal Gas
GT3000--
Hydrogen Sulde
Range 10-90% 5-50% 5-90% 30-90%
Default 40% 10% 40% 50%
GT3000--
Ammonia
Range 10-90% 5-50% 5-90% 30-90%
Default 40% 10% 40% 50%
GT3000--Chlorine
Range 10-90% 5-50% 5-90% 30-90%
Default 40% 10% 40% 50%
GT3000--
Hydrogen
Range 10-60% 5-50% 5-90% 30-90%
Default 40% 10% 40% 50%
GT3000--Oxygen
Range 5-20.5% v/v 5-20.5% v/v 5-20.5% v/v 20.9% v/v
Default 18% v/v 18% v/v 18% v/v 20.9% v/v
GT3000--Carbon
Monoxide
Range 10-90% 5-50% 5-90% 30-90%
Default 40% 10% 40% 50%
GT3000--Sulfur
Dioxide
Range 10-90% 5-50% 5-90% 30-90%
Default 40% 10% 40% 50%
PIR9400
Range 10-60% 5-50% 5-90% 50%
Default 40% 10% 40% 50%
PIRECL
Range 10-60% 5-50% 5-90% 30-90%
Default 40% 10% 40% 50%
OPECL
Range 1-3 LFL-meters 0.25-3 LFL-meters NA NA
Default 2 LFL-meters 1 LFL-meter NA NA
C706X*
Range 10-90% 5-50% 5-90% 30-90%
Default 40% 10% 40% 50%
CGS
Combustible
Range 10-60% 5-50% 5-90% 50%
Default 40% 10% 40% 50%
Model 505/CGS
Combustible
Range 10-60% 5-50% 5-90% N/A
Default 40% 10% 40% N/A
NTMOS--
Hydrogen Sulde
Range 10-90% 5-50% 5-90% 50%
Default 40% 10% 40% 50%
Generic Detector
Range 10-90% 5-50% 5-90% N/A
Default 40% 10% 40% 50%