Instruction Manual WGM701 Wasp
InstruTech
Page 24
7.4.3
Replacing the measuring chamber
Set the calibration value of the spare sensor with the <CAL> switch on the electronics unit (5).
DIA
ADJ
CAL
HV-ST
ST
E
C
A
0 2
4
6
8
E
C
A
0 2
4
6
8
Calibration value
spare sensor
(measuring chamber cpl.)
8
5
Carefully slide the measuring chamber (3) into the electronics unit (5) until the mechanical stop is reached.
Pins aligned straight.
3
5
4
Fasten the measuring chamber (3) by means of the hexagon socket set screw (4).
Perform an ATM and HV adjustment of the Pirani using the <ADJ> button. See sections
and
It is recommend to perform a leak test (leak rate <1×10
-9
mbar l/s) and a function test of the gauge on the
leak detector.
WARNING!
Helium may cause electric arcing with detrimental effects on the electronics of the product.
Before performing any leak tests disconnect power and remove the electronics unit.
