10 EL3060 CONTINUOUS GAS ANALYZERS | OI/EL3060-EN REV. A
Risks of a disconnected protective lead
The device can be hazardous if the protective lead is interrupted inside or
outside the device or if the protective lead is disconnected. Carrying out
work on the potential equalization or the equipotential bonding connection
is prohibited if there is an explosion hazard.
Risks involved when opening the covers
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.
Risks involved in working with an open device
The housing of the device must not be opened if the surrounding atmos-
phere is explosive. The relevant warning notice on the housing must be ob-
served.
When connected to power, the housing of the device may only be opened if
it has been ascertained in accordance with the applicable regulations that
the surrounding atmosphere cannot become potentially explosive.
Before carrying out any work on an open device, all poles must be discon-
nected from all power sources. All work on a device that is open and con-
nected to power should only be performed under the prescribed conditions
by trained personnel who are familiar with the risks involved.
Danger from charged capacitors
The capacitors in the device require 10 minutes to discharge after all poles
of the device have been disconnected from all power sources.
Replacing the battery
The battery may not be replaced in an explosive atmosphere.
Stopping the supply of sample gas
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 nitrogen before
the housing of the device is opened.
When safe operation can no longer be assured …
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.
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