GE B30 Technical Reference Manual page 213

Remove any paper chaff from the paper compartment.
Clean the thermal printhead and the small glass window in front of the static brush with a
cotton swab dipped in isopropyl alcohol. Avoid contact with the rubber paper roller.
NOTE: Be careful to limit the application of alcohol to the thermal printhead and the window.
Leave the paper compartment empty and close the hatch.
2. Check external parts
•
all connectors are intact and attached properly
•
the module box and the locking system are intact
Reattach the module and check that the locking system moves properly.
CO measurement
2
3. Check Mini D-Fend
Detach the Mini D-fend. Check the condition of the rubber O-rings on the metal Mini D-
fend connectors, located in the module front cover.
If necessary, detach the connectors by first disconnecting the tubes, then removing the
locking rings from the back of the front cover.
Replace the Mini D-fend and sampling line with new ones.
NOTE: Use only Datex-Ohmeda sampling lines in order to ensure proper functioning.
Connect the Extension Module, N-FC or N-FCREC to the monitor.
Turn on the monitor.
Configure the monitor screen so that the CO
Monitor Setup
4. Module software
Wait until the message 'Calibrating gas sensor' disappears from the screen, then enter
the service menu.
Monitor Setup
Write down the information regarding the ExtensionModule software.
5. Module bus communication
Enter the service menu General: Parameters - Gas Unit - General
Check that the Timeouts, Bad checksums and Bad c-s by mod values are not increasing
faster than by 5 per second.
If one of the values is increasing faster, it indicates a failure in module bus
communication.
- Screen 1 Setup - Waveform fields -
Digit Fields
- Install/Service (password 16-4-34) - Service (password 26-23-8).
curve is shown, for example as follows:
2
Field 6 - CO2
Lower Field 1 - Gases
Document no. 2044677-001
Service procedures
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