Service and maintenance
9.1
Cleaning
Clean the display and the keypad periodically. Use a dry cloth for this.
NOTICE
Damage due to detergents
Detergents can damage the device. Do not use detergents.
9.2
Firmware update
The power monitoring devices support firmware updates.
Use the powerconfig configuration software to update the firmware. Additional information on
updating the firmware can be found in the online help for powerconfig.
You can protect the update function, like all write accesses, with a password.
NOTICE
Power failure during a firmware update renders the device unable to function.
The firmware update takes several minutes. Connect the devices to a fail-safe power
supply before updating the firmware.
If the power fails despite this security measure, try to restart the firmware update of the
PAC power monitoring device in powerconfig.
PAC3120 and PAC3220
Equipment Manual, 10/2019, L1V30425208F-01
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