TELEDYNE OLDHAM SIMTRONICS OLCT 80 d, User Manual

Page: 72 / 116

OLCT 80
GAS TRANSMITTER
USER MANUAL
66 NPO80GB
Revision F.1
6.2.2 Powering the detector
1. Block the central measuring controller or PLC to avoid accidentally triggering any alarms
during the procedure.
2. Power the detector.
3. Once the reading has stabilized, switch the central controller to normal mode.
6.2.3 Stabilization time
After the device is mounted, it is important to allow the detector's temperature to stabilize. Also,
once the detector is powered, certain sensors require additional pre-heating time If adjustments
are made before the time indicated below has passed, readings may be incorrect, which could
put people and goods in danger. Total wait time is summarized below:
•
Combustible sensor: 2 hours
•
Oxygen sensor: 1 hour
•
Electrochemical sensor: 1 hour, except for:
- NO (nitric oxide): 12 hours
- HCl (hydrochloric acid): 24 hours
- ETO (ethylene oxide): 36 hours
•
Semiconductor sensor: 4 hours
•
Infrared sensor (XPIR): 2 hours
6.3 Gas reading display
6.3.1 Normal display (no fault)
•
The display indicates the concentration measured, the type of
gas and the unit for the selected channels (
Channel
Configuration menu, on page 25).
•
The indicator light ( ) blinks.
Figure 54: display under
normal operating conditions.
6.3.2 Display in the event of a fault
•
The display will read "8888" followed by a fault code.
•
The
DEF fault indicator light will illuminate. See page 107 for
a list of error and fault codes.
Figure 55: display in the
event of a fault.