Connect the sensor cable to the gauge.
Secure the cable connector with the lock screws.
Connect the sensor cable to the controller.
Operation
When the voltage is supplied, the measuring signal is avail-
able between pins 2 (+) and 12 (–) (Relationship Measuring
Signal – Pressure
→
"Technical Data" and
[1]).
BPG400-SD, -SP and -SR can also be operated via the
corresponding fieldbus interface (DeviceNet, Profibus or
RS485
→
[1] and [2] for further details and functions).
Allow for a stabilizing time of
≈
10 minutes. Once the gauge
has been switched on, permanently leave it on irrespective of
the pressure.
Gas Type Dependence
(BPG400)
The measurement value is gas dependent. The displayed
reading applies to dry air, O
2
, CO, and N
2
. For other gases, it
has to be converted (
→
"Technical Data" and
[1]).
Adjusting the Gauge
The adjustment of BPG400-SD, -SP and -SR
(
→
[1] and [2]) is slightly different from the
procedure for BPG400, which is described below.
The gauge is factory calibrated. If used under different
climatic conditions, at extreme temperatures, through aging
or contamination and after exchanging the sensor, the char-
acteristic curve can be offset and readjustment can become
necessary. Only the Pirani element can be adjusted and only
at atmosphere.
Readjustment becomes necessary if
•
at atmosphere the output voltage is <10 V or the display
reading is <atmosphere
•
when venting the vacuum system, the output voltage
reaches 10 V before the measured pressure has reached
atmosphere (Gauges with display will show the error "5" at
atmosphere (Pirani sensor warning)).
Activate the gauge.
Operate the gauge for
≈
10 minutes at atmos-
pheric pressure. If the gauge was operated
within the BA range, a cooling-down time of
≈
30 minutes is to be expected (gauge tem-
perature = environmental temperature).
Adjusting the gauge
BPG400 without display
353-500 353-502
BPG400 with display
353-501 353-503
Insert a pin (
≈
ø1.3×50mm) through the opening marked
<FULL SCALE> and push the button inside for at least
5 seconds.
≈
10 s
Automatic adjustment
Adjustment completed
Display
(BPG400 with part numbers 353-501 and 353-503)
Pressure reading
Pressure unit
Function display
(none) Pirani operation
Emission 25
μ
A
Emission 5 mA
Degas
1000 mbar adjustment (Pirani)
Error display
no error
(green background illumination)
Pirani sensor warning
(red background illumination)
Pirani sensor error
(red background illumination)
BA sensor error
(red background illumination)
Internal data connection failure
(red background illumination)
Deinstallation
DANGER
DANGER: 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 vac-
uum 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.
Put the gauge out off operation.
Unfasten the lock screws and unplug the sensor cable.
(If you are using BPG400-SD, -SP or -SR, unfasten
and unplug the interface cable too (
→
[1] and [2]).
Remove the gauge from the vacuum system.
Protective lid
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