ABB EasyLine EL3060 Series Instructions For Installation Start-Up And Operation page 9

Risks Involved when Opening the Covers
Risks Involved in Working with an Open Device
Danger from charged capacitors
Replacing the battery
Stopping the supply of sample gas
When safe operation can no longer be assured ...
Current-bearing components can be exposed when the covers or parts
are removed, even if this can be done without tools. Current can be
present at some connection points.
Before carrying out any work on an open instrument, all poles must be
disconnected from all power sources. All work on a device that is open
and connected to power should only be performed under the prescribed
conditions by trained personnel who are familiar with the risks involved.
When connected to power, the instrument case may only be opened if it
has been ascertained in accordance with the applicable regulations that
the surrounding atmosphere cannot become potentially explosive.
The capacitors in the instrument require 10 minutes to discharge after all
poles of the instrument have been disconnected from all power sources.
The relevant caution statement on the case should be noted.
The battery may not be replaced in an explosive atmosphere.
NOTE
The IECEx-certified instrument is supplied without a battery installed; a
battery must not be installed in the instrument.
In the case of flammable and toxic sample gases, the supply of sample
gas must be stopped and the sample gas feed path purged with inert gas
before the instrument case is opened.
If it is apparent that safe operation is no longer possible, the device
should be taken out of operation and secured against unauthorized use.
The possibility of safe operation is excluded:
·
If the device is visibly damaged,
·
If the device no longer operates,
·
After prolonged storage under adverse conditions,
·
After severe transport stresses.
Safety Information 9