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OLCT 60
FIXED POINTGAS MONITOR
USER MANUAL
3.3 Commissioning
3.3.1
Prior checks
Check the following points:
• Wiring completed
• Detector grounded
• Shielding grounded at controller side
• Integrity of the mechanical mounting (fixings, cable gland, and cover) ensured
3.3.2
Powering up detector
1. Inhibit any alarms to avoid false alarms during operation
2. Apply power to the OLCT 60
3.4 Stabilization time
Before initial calibration allow the detector to stabilize after applying power. Any adjustment
before the time indicated will result in an incorrect measurement, which may in turn compromise
the safety. The total waiting time is summarized below:
• Catalytic bead sensor: 2 hours
• Oxygen sensor: 1 hour (2 year sensor) to 1.5 hour (5 year sensor)
• Electrochemical sensor: 1 hour, excluding:
-
NO (Nitrogen Monoxide): 12 hours
-
HCl (Hydrogen Chloride): 24 hours
-
ETO (Ethylene Oxide): 36 hours
-
CVM (Vinyl chloride): 7 days
• Semiconductor sensor: 4 hours
• Infrared sensors and GD10P: 1 hour
3.5 Display of the gas measurement
3.5.1 Normal operating mode
Alternately, the display shows the measured concentration and the type
of gas.
OK
The
green indicator is lit; the
18
FAULT
indicator is off.
L_00
Figure 23: Normal
operating mode
NPO60GB
Revision F.2
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