INSTALLATION
28 OI 248 (EN) REV6 /REV5
Checking the SF
6
Shipping Pressure
The pole columns are filled with SF
6
at 0.3 bar for shipping purpo-
ses. This means that the pole columns do not need to be
evacuated during commissioning. If a pole column is no longer at
the correct shipping pressure upon installation, this may indicate
shipping damage to the pole column.
We recommend that the shipping pressure indicator (T116) or ano-
ther appropriate instrument be used to check the shipping pressu-
re.
Procedure for using the shipping pressure indicator
• Unscrew the screw cap (2). This exposes the poppet valve (3) of
the check valve.
• Place the shipping pressure indicator (T116) axially on the gas
coupling (1) and press it briefly until it hits the mechanical stop.
This opens the poppet valve (3) and transmits the pole column
pressure to the shipping pressure indicator. The pressure
indication remains visible until the next measurement due to a
check valve in the shipping pressure indicator.
• Remove the shipping pressure indicator axially and evaluate the
indication.
• Screw on the screw cap (2) again.
Evaluating the indication
• The pointer should be in the green area of the scale.
• If the pointer is in the red area on the left, this indicates a lack of
shipping pressure and therefore shipping damage.
• If the pointer is in the red area on the right, this indicates an
overload on the shipping pressure indicator. In this case the
shipping pressure indicator must be recalibrated.
The indicator's maximum permissible gauge pressure is 1 bar.
The indicator is intended solely for checking shipping pressure.
Therefore:
Do not use the shipping pressure indicator to check rated
pressures, alarm pressures or blocking pressures.
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