AFRISO Eurovac HV Betriebsanleitung Seite 77

10. Connect the vacuum gauge to the measurement connection.
11. Keep withdrawing at a vacuum of -0.5 to -0.8 bar.
- It is absolutely indispensable for the top area of the tank to contain air.
When the pumped volume decreases, interrupt the pumping process
several times so that additional liquid can flow.
-
If the suction volume becomes too small, alternating withdrawal via the
measurement connection may prove to be more successful.
- Always make sure to withdraw the maximum volume possible, but at
least the minimum suction volume so that a sufficient air volume is cre-
ated above the remaining liquid.
12. Dismount the pumping equipment.
5.2 Preparing mounting
5.2.1 Basic vacuum
The vacuum pump of the leak detector must not exceed the pump capac-
ity of 100 l/h.
1. Generate a vacuum of approx. -400 mbar in the interstitial space. Use
an installation pump with a greater capacity for this purpose.
5.2.2 Tightness test
1. Check for leaks in the interstitial space.
- A slight pressure drop in the first hour is unavoidable. After that, the
pressure must not drop any more.
5.2.3 Adaptation
INCORRECT PRESSURE IN INTERSTITIAL SPACE
If the operating pressure in the interstitial space does not meet the specifica-
tions, the product may be damaged or destroyed.
• Verify that the operating pressure in the interstitial space of the tank corre-
sponds to the operating pressure specified in the technical specification.
Failure to follow these instructions can result in equipment damage.
1. Reduce the vacuum in the interstitial space to -370 mbar.
- If the vacuum is greater when the product is connected, the measuring
system may be damaged or destroyed.
Mounting
NOTICE
Eurovac HV
EN
19