tinb07e1-e 2011-07 Vacuum Gauge Controller
29
iM221
Logarithmic representation of the IM221 controller (1
V/decade) U = 8 V is equivalent of p = 10
-2
mbar.
LoGC4
Logarithmic representation of 12 decades (0.83 V /
decade) matched to the following sensor combination:
• PCG on channel 1
• BPG402 on channel 2
U = 10 V is equivalent of p = 1000 mbar. The switching
point between the sensors is 10
-2
mbar.
PM411
Nonlinear characteristic curve of the output as with the
PM411 board.
5.3.6
Error signal relay (
Err-r
)
The
Err-r
parameter is used to specify what kind of error
will trigger the error signal relay.
Tab. 5-11
Err-r
parameter values
5.4 Test parameters (
PArA tESt
)
This parameter group is intended for test and service pur-
poses. It is used to examine additional system data, to set
basic system parameters, and to check individual system
functions.
The parameter group
tESt
is not required for normal oper-
ation. For this reason it is not accessible normally.
5.4.1
Selection
When switching on
The parameter group
tESt
becomes available if you
switch on the Vacuum Gauge Controller as follows:
1
Press the PARA button and keep it pressed
2
Switch the mains switch on. See Fig. 3-4,
11,
Pos. H.
• The Vacuum Gauge Controller is switched on
• The parameter group
tESt
is selected
• The PARA indicator is illuminated
During normal operation
During normal operation it is also possible to activate the
parameter group
tESt
from the measurement mode:
1
Press the PARA button
• The parameter menu is selected
• The PARA indicator is illuminated
2
Keep the UP and DOWN buttons pressed for
approximately 5 seconds
• The firmware version is displayed
• The parameter group
tESt
is selected
NOTE:
When the parameter group
tESt
is selected, the Vac-
uum Gauge Controller will not automatically return to
the measurement mode. In order to return to the mea-
surement mode, press the PARA button repeatedly
until all test parameters have been run through.
5.4.2
Firmware version (
Pnr
)
Displays the firmware version number. The last character
represents the modification index.
Example: 302-534-D
5.4.3
Watchdog control (
dt-C
)
Behavior of the system monitoring system (watchdog
control) in the event of an error.
Sensor
Pressure (in mbar)
All types
p = U/10 * 10
n
Controller
Pressure (in mbar)
IM221
p = 10^[U - 10]
Sensor
Pressure (in mbar)
PCG+BPG402
p = 10^[U/(10/12) - 9]
Display
Significance
ALL
All errors
no SE
Device errors
CH 1
Sensor 1 and device errors
CH 2
Sensor 2 and device errors
CH 3
Sensor 3 and device errors
Display
Significance
Auto
An error message from the watch-
dog control is acknowledged auto-
matically after 2 seconds
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