SGB VL-H9, Руководство пользователя

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M.:
Date: Feb. 98
Page: 26
Vacuum Leak Detector
VL - H9
SGB
Sicherungsgerätebau
GmbH
57076 Siegen
(8) Preparation of the device for the operation (8.3.6)
The equipment listed hereafter is recommended for the functional check:
• vacuum gauge with a class-dependent measuring accuracy of at least 1.6, with an end scale
value up to 1,000 mbar and a nominal size of at least NG100
•
testing receptacle with a capacity of 1 l
•
needle valve
•
flexible hoses for connecting the test equipment
8.3.1 Emptying of the condensate traps
Measuring
Measuring
Exhaust
Exhaust
Suction
Suction
VL-H9-Ex und VL-H9/A-Ex VL-H9/A-MV-Ex
If the pneumatic connecting lines are equipped with condensate traps, these boxes must be
emptied. Proceed as follows: close the stop valves on the tank and bleed the suction and
measuring lines on the leak detector. Now the connecting lines are at atmospheric pressure,
and the condensate traps can be emptied.
Measuring line Suction line
Shut-off cock on the tank closed closed
Position of the stop valves on the tank when emptying the condensate traps
8.3.2 Continuity check of the interstitial space
mbar
mbar
1000
1000
800
800
400
400
600
600
200
200
0
0
Measuring
Measuring
Exhaust
Exhaust
Suction
Suction
Bleeding
Bleeding
VL-H9-Ex und VL-H9/A-Ex VL-H9/A-MV-Ex
For the continuity check, the pressure gauge is connected to the testing socket of the
measuring line, and the stop valves on the tank are opened. The suction line is bled through
the three-way valve until the pressure gauge indicates a pressure drop. If further testing
sockets are installed on the interstitial space (e.g. DIN 4119), these sockets must also be bled
until the pressure drops.
Measuring line Suction line
Shut-off cock on the tank open open
Position of the stop valves on the tank during the continuity check
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