Union Instruments CWD3000 EXP, Operating Instructions Manual

Page: 99 / 120

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11 Maintenance
When carrying out work in hazardous areas, take the relevant safety precautions.
The quality of measurements and availability of the combustion calorimeter can
only be guaranteed when the maintenance intervals are adhered to.
11.1 Preparations
Supply lines of linked system components can be closed for maintenance
purposes. These must be reopened after the device is put back into service.
DANGER
Risk of ignition by electricity!
Risk of serious injury from electricity!
•
Parts of the combustion calorimeter with the adjacent symbol may still carry
voltage even when the main switch is switched off! If required, separate the
combustion calorimeter from the supply network!
•
Device does not have a main switch – disconnect the device from the voltage
supply if necessary and take steps to prevent reconnection!
•
Only skilled electricians are permitted to work on the electrical equipment of
the combustion calorimeter!
WARNING
Risk of serious injury from escaping gases!
•
Before carrying out maintenance work on the combustion calorimeter and
whenever necessary, also bring the the linked system components to a
standstill.
•
Valve of the ignition protection gas supply – Follow instructions before
closing!
•
Work on gas connections may only be carried out by qualified personnel!
Guidelines applicable at the installation location must be observed!
•
Incomplete combustion during maintenance operation may cause the
exhaust air to become polluted with combustion gas!
•
In case of toxic gases, the applicable safety provisions must be complied
with.
•
Risk of serious injury from burns caused by burner components!
Before carrying out maintenance work on the burner system, always wait 5
minutes for it to cool down!