Benning MM 7-2, Operating Manual

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6.1 Maintenance schedule
Maintenance
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6 Maintenance
The battery compartment and the housing may be opened for maintenance work. Apart from
that, there are no components in the device that you can replace.
WARNING
Opening the device
Danger to life or serious injury is possible due to contact with high electric voltage when opening
the device. The device might get damaged.
• Make sure that the device is free of voltage before opening the battery compartment or
housing.
• Do not open the device (except for the battery compartment and replacing a fuse).
• Please contact your specialty retailer or the returns management for any repairs [ } page 9].
6.1 Maintenance schedule
The following table provides an overview of all maintenance and servicing work that you must
carry out permanently or at regular intervals.
Interval Measures
Regularly, as needed • Cleaning the device [
}
page 43]
As needed • Replacing the batteries [
}
page 44]
Every 12 months • Calibrating the device [ } page 44]
Table 22: Maintenance schedule
6.2 Making the device free of voltage
If you want to open the battery compartment or the housing for maintenance work, make sure
first that the device is free of voltage.
Procedure
1. Remove the device from the measuring point.
2. Disconnect the safety measuring lines from the device.
3. Set the rotary switch of the device to switch position “OFF”.