OPERATING MANUAL OXYGEN MONITORING SYSTEM
OMS 420
40
9.7.14
History auto-calibration
This function allows the user to see the last auto calibration values.
10
Troubleshooting
If the system detects an error, the plain text will be displayed after pressing the “Error” key in the service menu.
Malfunction: Corrective
action:
No display
Check power supply, check cables and connectors
Display:
Heating current<0.5A
Sensor element defect
O
2
sensor element defect
Check heater resistance of sensor
Replace sensor
Display:
Configuration not ok
Checksum wrong
New adjustment required
Display:
Flash error!
New adjustment required Please contact your dealer (manufacturer).
Display:
Unit to warm
Hot environment
Ambient temperature too high!
Use heat shield or attach a compressed air based Vortec cooler
Transmitter does not react with sample gas
from stack
Clean the filter screen.
Calibration error
Calibration factor cannot be set.
Test gas cylinder is empty, filter screen dirty or clogged
Calibration offset value cannot be set.
Instrument air supply is not available,
Transmitter does not react with test gas
Please contact your dealer (manufacturer).
www.
GlobalTestSupply
.com
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