Checking The Operating Points Of The Density Monitor - GE GL 310 F3/4031 P/VR Operating Instructions Manual

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OMMISSIONING
7.1.2

Checking the Operating Points of the density monitor

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In one equipment version, the switchgear is available with a den-
sity monitor unit of type EasyCheck.
The EasyCheck technology makes it particularly easy to perform
the emission-free density monitor test in correspondence with
the "F-gases regulation EU 517/2014" quickly and safely. (see
Chapter "12.1" on page 97)
Caution!
For inspection of the density monitor, the gas piping must not be
coupled to the pole columns yet.
The density monitor is temperature-compensated. The ambient
temperature does not affect the indication or the operating points.
For a check of the operating points, only the gas piping is filled with
gas. The pole column connections for the gas piping are equipped
with check valves. The check valves prevent uncontrolled gas lea-
kage.
The density monitor has two operating points:
- UW1: Alarm. This signals gas loss, but the circuit breaker re
mains ready for operation.
- UW2: Lockout. Severe gas loss is indicated, and switching ope-
rations are prevented by the electrical control system.
- ND: Rated pressure.
• Unscrew the protective cap from the central supply connection.
• Connect the filling hose of the gas-filling device to the central
supply connection (type DILO DN8 coupling; the location of the
gas-filling device is shown in the dimensioned drawing).
• Fill the gas piping with SF
The rated pressure is marked by the black dot on the indicator
dial.
• Disconnect and remove the filling hose.
• Connect a device suitable for discharging and collecting SF
such as the SF Multi-Analyzer manufactured by DILO Armaturen
6
und Anlagen GmbH - to the central supply connection.
OI 248 (EN)
UW2 / UW3
UW1
ND
until rated pressure (ND) is reached.
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