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Manual instruction MM850482 ed.04
26
6.2.2
Tightness test
To perform the tightness test, press the [
MENU
] key from measuring page until the following page will be
displayed:
WARNING
D
O NOT PRESSURIZE THE GAS NETWORK
Zero the sensor by pressing the [ ] key.
Pressurize the gas network using air or gas media.
Press the [
ENTER
] key to start procedure. The following page will be displayed:
WARNING
T
HE
MAXIMUM
OPERATIVE PRESSURE IS
120
H
P
A
(120
MBAR
).
DO
NOT
EXCEED
THIS PRESSURE VALUE
The instrument will display the initial pressure and a 60 seconds countdown will start. This is a stabilization
time.
When the countdown ends, displayed page will change as follows and a 120 seconds countdown will start
When the 120 seconds countdown ends the
∆
P value will be displayed on the following page: