Union Instruments CWD3000 EXP, Руководство по эксплуатации

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Maintenance
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11.2 Maintenance/Inspection
NOTE
Maintenance work must be performed according to the inspection and
maintenance schedule! The nature and amount of wear depends greatly on the
individual use and operating conditions. All specified intervals are therefore
guide values.
The following items must be ensured before carrying out maintenance work:
1. Make a note of the following values on the combustion calorimeter!
• Wobbe i/s
• Heating value/Combustion value
• Density
•
mV signals
•
mA signals
•
Internal pressure
•
Differential pressure, Wobbe
•
Differential pressure, air
2. Notify the control room
3. If no default values via PLC are possible, activate “Hold signal” on the
combustion calorimeter (see 9.6.1).
4. Close combustion gas shut-off valve to combustion calorimeter and carry out
leak testing.
The nature and amount of wear depends greatly on the individual use and
operating conditions. All specified intervals are therefore guide values.
To guarantee operational reliability, use only genuine spare parts of the
manufacturer.
DANGER
The calorimeter can be operated with a door open for maintenance purposes. In
this operating mode, ignition protection is no longer ensured!
Make sure that there is not an explosive atmosphere around the calorimeter
during operation with an open door!
Maintenance operation may only be carried out by instructed persons!
Observe national, local and company-internal specifications on maintenance
operation in hazardous areas, e.g. fire permit!
Steps
Set calorimeter to Stop/End measurement, STOP button on control panel.
Disconnect voltage supply.
Shut off air supply.
Open door of cell 2.