45
MRBP.424321.001G2 Version 1.0 15/06/2020
Display image
Audio signal
Green LED
«
Work
»
Red LED
«
Alarm
»
Relay
Thresh-
old 1
Relay
Thresh-
old 2
Relay
Failure
Description
no
on
off
NC
NC
NO
Channel maintenance mode enabled.
Sensor heating waiting (not more than 130
seconds since channel connection).
no
on
off
NC
NC
NO
Channel maintenance mode enabled.
Channel current concentration image (cap-
tions: E1
–
threshold 1 exceeding, E2
–
thresh-
old 2 exceeding, ER
–
measurement range ex-
ceeding).
no
on
off
NC
NC
NO
Channel maintenance mode enabled.
Short circuit in the channel supply circuit.
Channel power supply disconnected.
It is necessary to eliminate short circuit cause
and reboot channel power supply.
no
on
off
NC
NC
NO
Channel maintenance mode enabled.
Current in the current loop circuit exceeds 31
mA.
After short circuit in the current loop circuit
cause elimination, current channel concentra-
tion is displayed.
no
on
off
NC
NC
NO
Channel maintenance mode enabled.
If the current in the current loop circuit is less
than:
-
0.35 mA at channel initialization;
-
3.7 mA in normal operation mode.
No communication with detector via an ex-
