Setting Start Of Scale And Full Scale With A Pressure Source - Siemens SITRANS P 7MF4232 Operating Instructions Manual

7MF4232
4.3.3 Operation with visible digital display and deactivated function lock
.
Note
D The measuring span does not change when the start of scale is set!
(span = full scale minus start of scale)
D The keys and/or functions can be locked!
See Table 4.1 (page 26), Mode 10, chapter 4.3.3.7 (page 31) and 4.4 (page 32).
Unscrew both screws of the protective cover and swing the protective cover up.
On completion of the adjustment:
- Close the protective cover and tighten both screws

4.3.3.1 Setting start of scale and full scale with a pressure source

.
Note
The setting only affects the output current. If there is no pressure source
in mode 5 the start of source and
in mode 6 the full scale
can be set in the selected uengineering unit, see chapter 4.3.3.2, page 28.
D Setting start of scale
- Apply absolute pressure corresponding to the start of scale to the transmitter
- With the M -key, set mode 2
- With the -key or the
or
- set the output current to 4 mA:
Press the -key and
If the character appears at the left hand side of the indicator the measuring limits are exceeded; the
previous setting is not changed.
D Setting the full scale
- Apply absolute pressure corresponding to full scale to the transmitter
With the M -key, set mode 3
-
- With the -key or the
or
- set the output current to 20 mA:
Press the -key and
C79000-B5676-C92-01
-key, set the output current of the start of the scale
-key simultaneously for about 2 s.
-key, set the output current of the full scale
-key simultaneously for about 2 s.
Operating Instructions
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