Operation
PrimaX
34
GB
Output States
Switched: the relay state has switched from the normal state. The normal state can
be set to energised if alarm/failure or de-energised if alarm/failure. Normally de-en-
ergised if alarm/failure meets the ATEX and SIL requirements. In case of switched
relays the device will go to the normal state when the related condition [non-latched
alarm and/or fail] has been removed. For additional information about output
states, see chapter 10, Appendix.
LOC: The PrimaX Gas Monitor has been exposed to a high gas concentration
[above the LEL], and the over-range condition still exists.
Latched LOC: The PrimaX Gas Monitor has been exposed to a high gas concen-
tration [above the LEL], and there is a possibility that the over-range condition may
still exist.
In case of very high flammable concentrations >100%LEL the device is
able to lock all outputs [LOC]. This function shall be used for standalone
applications according to ATEX requirements.
State Failure Relay Alarm Relay
Normal
Startup Startup state
[default: switched]
Calibration
Latched voltage overrange Switched
Loop not connected Switched
Underrange Switched
Error Switched
Safety critical error Switched
LOC [combustible] Switched
Latched LOC [combustible] Switched
Alarm threshold exceed Switched
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