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The pressure required for zero point and span is calibrated using the handheld terminal
without entering a reference pressure.
Moving through
#
Para.
the menus
Main group: Basic setting
1
Entering known pressure for zero point
V0H1
Setting 4 mA
2
Entering known pressure for span
V0H2
Setting 20 mA
A reference pressure is available that corresponds exactly to the zero point and span
required.
Moving through
#
Para.
the menus
Main group: Basic settings
1
Adopting the acting pressure for the zero
point
V0H3
Confirming 4 mA
automatically
2
Adopting the acting pressure for the span
V0H4
Confirming 20 mA
automatically
If the display does not show zero after zero point adjustment (due to position), then this
can be corrected to zero by entering a bias pressure or by adopting the bias pressure
acting (depending on position).
Moving through
#
Para.
the menus
Main group: Basic setting
1
Setting the display to zero by entering a
known bias pressure (pressure dependent on
position).
V0H5
Setting bias
pressure
alternatively
2
Setting the display to zero
A bias pressure acting (pressure dependent
on position) is adopted as zero pressure.
V0H6
Confirming
bias pressure
automatically
The current signal is set to 3.8 mA ... 20.5 mA as standard when operating correctly.
Selecting the 4 mA level, ensures that a minimum current signal does not fall below
4 mA.
Moving through
#
Para.
the menus
Main group: Sensor data
1
V7H3
Off Current
output min.
4 mA
Entry
e. g. 0 psi Enter
e. g. 14.5 psi
Enter
Entry
e. g. 0 psi
Enter
e. g. 14.5 psi
Enter
Entry
e. g. 5 psi Enter
Enter
Entry
e. g. On Enter
Enter zero point
and measuring span
Damping
Zero
Span
on
off
1
2
3
+
–
Display
+
–
No reference
pressure
Confirm zero point
and measuring span
Damping
Zero
Span
on
off
1
2
3
+
–
+
–
Display
Reference
pressure
p e =0
p
p+p Bias
Barcon LHC/PPC (HART)
Commissioning
Lower and upper
range value: calibration
without reference
pressure
Lower and upper
range value: calibration
with reference pressure
Bias adjustment
4 mA level (current
output min. 4 mA)
27
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