13
TDOCT-
3147_E
NG
259858
08/
2013
Pressure Transmitter LHCR-51, LHCS-51
Operation
Function of the DIP switches
Function of the Operating Elements
Switches
Symbol/
labeling
Switch position
"off"
"on"
1
The device is unlocked.
Parameters relevant to the measured
value can be modified.
The device is locked.
1
Parameters relevant to the measured
value cannot be modified.
1
If operation is locked by means of the DIP switch, you can only unlock operation again by means of the DIP switch. If operation
is locked by means of the operating menu, you can only unlock operation again using the operating menu.
2
damping
τ
Damping is switched off.
The output signal follows measured
value changes without any delay.
Damping is switched on.
The output signal follows measured
value changes with the delay time
τ
.
2
2
The value for the delay time can be configured via the operating menu ("Setup"
→
"Damping").
Factory setting:
τ
= 2 s or as per order specifications.
3
SW/Alarm min
The alarm current is defined by the
setting in the operating menu.
("Setup"
→
"Extended setup"
→
"Curr. output"
→
"Output fail mode")
The alarm current is 3.6 mA regardless
of the setting in the operating menu.
Operating key(s)
Meaning
"Zero"
pressed for at least 3 seconds
Get lower range value
•
"Pressure" measuring mode
The pressure present is accepted as the lower range value (LRV).
•
"Level" measuring mode, "In pressure" level selection, "Wet"
calibration mode
The pressure present is assigned to the lower level value
("Empty calibration").
No function is assigned to the key if level selection = "In height" and/or
calibration mode = "Dry"
"Span"
pressed for at least 3 seconds
Get upper range value
•
"Pressure" measuring mode
The pressure present is accepted as the upper range value (URV).
•
"Level" measuring mode, "In pressure" level selection, "Wet"
calibration mode
The pressure present is assigned to the upper level value
("Full calibration").
No function is assigned to the key if level selection = "In height" and/or
calibration mode = "Dry"
"Zero"
and
"Span"
pressed
simultaneously for at least
3 seconds
Position adjustment
The sensor characteristic curve is shifted such that the pressure present
becomes the zero value.
NOTICE
NOTICE
DOCT3147_eng.book Seite 13 Freitag, 16. August 2013 4:58 16
