58
tina56e1-f (2015-09)
For adjusting the zero, operate the gauge under the same con-
stant ambient conditions and in the same mounting orientation
as normally.
The gauge is adjusted to default values. However, it can also be
adjusted to other pressure values, if the exact pressure value is
known (reference measurement).
If you are using a seal with centering ring and filter, check
that they are clean or replace them if necessary
(
→
"Deinstallation").
Put the gauge into operation and operate it at atmospheric
pressure for at least 10 minutes.
Press the <ADJ> button with a pin (max. ø1.1 mm) and the
ATM adjustment is carried out: The Pirani sensor is ad-
justed to 1000 mbar by default.
ATM
HV
Evacuate the vacuum system to p << 10
-5
mbar and wait at
least 2 minutes.
Press the <ADJ> button with a pin and the HV adjustment
is carried out: The gauge is adjusted to 5×10
-5
mbar
(default).
HV adjustment to another pressure
→
[3].
