NAG/IM/PPC-P/P+/01/22
21
VACUUM CALIBRATION
Turn vernier valve fully in anticlockwise direction.
Short input (p/v) terminal with the vacuum terminal
using hose.
Set the indicator to zero by pressing <Zero> soft key.
Hand Tight release valve of the pump in clockwise
direction.
Pump the movable handle until 80% of the vacuum is
generated.
Turn Vernier (fine adjustment) counter clockwise to
increase vacuum and clockwise to decrease vacuum
of item being tested. Turn Vernier slowly for precise
incremental vacuum control.
Upon completion of testing, open the Release valve
in anti- clockwise to release the Vacuum to zero and
remove the test device from the hose end.
STORING
Before switch off the calibrator release the pressure
applied. Switch off the calibrator using <ON> and
<OFF> key.
Turning off the calibrator during the calibration
process will not damage either the instrument or the
pump.
The instrument under test must always be removed
from the calibrator after use.