BA 4510
6 Maintenance
During maintenance, remember:
– The equipment must be maintained by a professional familiar with the safety requirements and risks.
– Only perform maintenance work described in these operating and installation instructions.
– When performing maintenance of any type, observe the respective safety and operation regulations.
DANGER
Electric voltage
Risk of electric shock
a) Disconnect the unit from the mains when performing any maintenance.
b) Secure the equipment from accidental restarting.
c) The unit may only be maintained and opened by instructed, competent personnel.
DANGER
Toxic, acidic gasses
Sample gas / calibrating gas can be harmful.
a) If necessary, ensure a safe gas discharge.
b) Switch off the gas supply before performing maintenance and protect from opening
inadvertently.
c) Protect yourself from toxic / corrosive gasses when performing maintenance. Wear
suitable protective equipment.
The electronics, measuring cell and, if applicable, the built-in sample gas pump, are maintenance free except for occasional cal-
ibration. The built-in protective filter in the puncture device must be checked regularly and replaced if dirty.
If the measuring cell or the thermocouple is defective, return the device to the manufacturer for repair.
6.1 Replacing the Fuse
WARNING
Electrical voltage
Risk of electric shock
Switch off the device and disconnect from the mains before replacing the fuse.
WARNING
Hot surface
Risk of burns
The measuring cell housing will have an excess temperature of approx. 60 °C (140 °F) for
some time after being switched off. Wait for the device to cool down before starting
maintenance.
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Bühler Technologies GmbH
BE550013 ◦ 09/2018
