Remove the protective lid and install the product to the
vacuum system.
Clamp
Seal with centering ring
Seal with center-
ing ring and filter
Protective lid
or
Keep the protective lid.
Electrical Connection
Make sure the vacuum connection is properly made
(
→
"Vacuum Connection").
If no sensor cable is available, make one according to
the following diagram.
2
5
3
1
6
4
1M
Ident
2
3
1
4
5
6
4.7
4.7
–
+
–
+
Electrical connection
Pin 1 Identification
Pin 2 Signal output (measurement signal)
Pin 3 Signal common
Pin 4 Supply
Pin 5 Supply common
Pin 6 Screening
Connector
soldering side
Connect the sensor cable to the gauge and secure the
connector with the lock screw.
Connect the sensor cable to the controller.
Operation
When the supply voltage is applied, the measurement signal
is available between pins 2 and 3 (relationship between
measurement signal and pressure
→
"Technical Data").
Allow a stabilization period of at least 10 minutes. It is advis-
able to operate the gauge continuously, irrespective of the
pressure.
Gas Type Dependence
The measurement value is gas dependent. The pressure
reading applies to dry air, O
2
, CO and N
2
. For other gases, it
has to be corrected (
→
"Technical Data").
If the gauge is operated with a Pfeiffer Vacuum controller for
Compact Gauges, a calibration factor for correction of the
actual reading can be applied (
→
of the corresponding
controller).
Adjusting the Gauge
The gauge is factory calibrated. Due to long time operation or
contamination, a zero drift could occur. Periodically check the
zero and adjust it if necessary.
For adjusting the zero, operate the gauge under the same
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 and replace them if
necessary (
→
"Deinstallation").
Activate the gauge and operate it at atmospheric pres-
sure for at least 10 minutes.
Press the button with a pin (max. ø1.1 mm) and the
ATM adjustment is carried out: The gauge is adjusted
to 1000 mbar (8.50 VDC) by default. By pressing the
button >5 s the pressure value is increased towards
1200 mbar (or, by pressing it again, decreased towards
500 mbar) until the button is released or the limit is
reached.
max. ø1.1 mm
ATM
HV
Evacuate to p << 10
-4
mbar (recommended) or to a
pressure in the range of 10
-4
… 10
-2
mbar and wait at
least 2 minutes.
Press the button with a pin and the HV adjustment is
carried out: The gauge is adjusted to 1×10
-4
mbar
(1.50 VDC) by default. By pressing the button >5 s the
pressure value is increased toward 1×10
-2
mbar until
the button is released or the limit is reached.
Deinstallation
DANGER
Caution: contaminated parts
Contaminated parts can be detrimental to health
and environment.
Before beginning to work, find out whether any
parts are contaminated. Adhere to the relevant
regulations and take the necessary precautions
when handling contaminated parts.
Caution
Caution: vacuum component
Dirt and damages impair the function of the
vacuum component.
When handling vacuum components, take ap-
propriate measures to ensure cleanliness and
prevent damages.
Caution
Caution: dirt sensitive area
Touching the product or parts thereof with bare
hands increases the desorption rate.
Always wear clean, lint-free gloves and use
clean tools when working in this area.
Vent the vacuum system.
Turn the gauge off.
Unfasten the lock screw and unplug the sensor cable.
Remove the gauge from the vacuum system.
Protective lid
Maintenance, Repair
In case of severe contamination or a malfunction, the sensor
can be replaced.
Gauge failures due to contamination, as well as ex-
pendable parts (filament), are not covered by the
warranty.
Pfeiffer Vacuum assumes no liability and the warranty be-
comes null and void if any repair work is carried out by the
end-user or third parties.
