VACUUM LEAK DETECTOR
VLXE ..
31/10/2019
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2.41 Personal protective equipment when working on systems which pose an explosion hazard
The parts listed here apply in particular to safety when working on
systems which pose an explosion hazard.
If work is carried out in areas with a potentially explosive atmosphere,
the following items of equipment are required as an absolute mini-
mum:
Suitable clothing (risk of a build-up of electrostatic charge)
Suitable tools (compliant with EN 1127)
A suitable gas warning device which is calibrated for the existing
vapor-air mixture (work should only be performed at a concentra-
tion of 50 % below the lower explosion limit)
1
Measuring device for determining the oxygen content of the air
(Ex/O meter)
2.5 Basic
hazards
DANGER:
From electric current
When working on the opened leak detector, it must be disconnected
from the power supply unless otherwise stated in the documentation.
Comply with the relevant regulations for electrical installations, explo-
sion protection (e.g. EN 60 079-17) and accident protection regula-
tions.
CAUTION:
Through moved parts
If work is carried out on the leak detector, switch off the power supply.
DANGER:
From explosive vapor-air mixtures
There may be explosive steam-air mixtures in the leak detector and in
the connection lines.
The absence of gas must be established before carrying out work.
Comply with explosion protection regulations, such as the German
BetrSichV (or the Directive 1999/92/EC and the resulting laws in the
respective member states) and/or others.
DANGER:
When working in shafts
The leak detectors are fitted outside the manhole shafts. The pneu-
matic connection is typically made in the manhole shaft. The shaft
should therefore be entered for the installation.
Before entry, the appropriate protection measures must be installed
and the absence of gas and sufficient oxygen must be ensured.
1
Other percentages may be applicable according to national, regional or plant-specific regulations.
Safety