Pepperl+Fuchs LHCR-51, Operating Instructions Manual

Page: 23 / 40

23
TDOCT-
3147_E
NG
259858
08/
2013
Pressure Transmitter LHCR-51, LHCS-51
Commissioning
5.1.2 Level measuring mode
The following functions are possible by means of the keys on the electronic insert:
•
Position adjustment (zero point correction)
• Setting the lower and upper pressure value and assigning to the lower and upper level
value
• Device reset
• The "Zero" and "Span" keys only have a function with the following setting:
– "Level selection" = "In pressure", "Calibration mode" = "Wet"
The keys have no function in other settings.
• The device is configured for the "Pressure" measuring mode as standard. You can
switch measuring modes by means of the "Measuring mode" parameter.
→
24,
"Measuring mode selection"
The following parameters are set to the following values at the factory:
– "Level selection" = "In pressure"
– "Calibration mode": wet
– "Output unit": %
– "Empty calib.": 0.0
– "Full calib.": 100.0
– "Set LRV": 0.0 (corresponds to 4 mA value)
– "Set URV": 100.0 (corresponds to 20 mA value)
• Operation must be unlocked.
→
21, "Locking/unlocking operation".
• The pressure applied must be within the nominal pressure limits of the sensor. See
information on the nameplate.
1. Carrying out position
adjustment
1
1 Observe warning on commissioning (
→
22).
2. Setting lower range value 3. Setting upper range value
Pressure is present at device. Desired pressure for lower pressure
value ("empty pressure") is present
at device.
Desired pressure for upper
pressure value ("full pressure") is
present at device.
↓ ↓ ↓
Press the "Zero" and "Span" keys
simultaneously for at least 3 s.
Press the "Zero" key for at least 3 s. Press the "Span" key for at least
3 s.
↓ ↓ ↓
Does the LED on the electronic
insert light up briefly?
Does the LED on the electronic
insert light up briefly?
Does the LED on the electronic
insert light up briefly?
Yes No Yes No Yes No
↓ ↓ ↓ ↓ ↓ ↓
Applied pressure
for position
adjustment has
been accepted.
Applied pressure
for position
adjustment has
not been
accepted.
Observe the input
limits.
The pressure
present was
saved as the
lower pressure
value ("empty
pressure") and
assigned to the
lower level value
("empty
calibration").
The pressure
present was not
saved as the
lower pressure
value. Observe
the input limits.
The pressure
present was
saved as the
upper pressure
value ("full
pressure") and
assigned to the
upper level value
("full
calibration").
The pressure
present was not
saved as the
upper pressure
value. Observe
the input limits.
NOTICE
DOCT3147_eng.book Seite 23 Freitag, 16. August 2013 4:58 16