Siemens SITRANS P DS III Operating Instructions Manual page 77

Operating functions
Note
Zero point calibration
For absolute pressure transmitters, the start of scale value is at vacuum.
• For absolute pressure transmitters, set vacuum for zero point calibration.
Table 6- 4 Operating functions using keys
Function Mode
[M]
Measured value The
mode
s are
select
ed
here.
Start of scale 2
value (only in
"Pressure"
measuring mode)
Full scale value 3
(only in "Pressure"
measuring mode)
Electrical damping 4
Start of scale 5
value in the so-
called blind
adjustment
Full scale value in 6
the so-called blind
adjustment
Zero point 7
calibration
(position
correction)
Current 8
transmitter
SITRANS P DS III with HART
Operating Instructions, 06/2013, A5E00047092-09
Key function
[↑] [↓] [↑] and [↓]
Current Current Set to 4 mA
higher lower
Current Current Set to 20
higher lower mA
Damping Damping Set to 0
higher lower
Pressure Pressure Set the start
higher lower of scale
value to 0
Pressure Pressure Set the full
higher lower scale value
to upper
measuring
limit
Correction Correctio execute
value n value
higher lower
Current Current switch on
higher lower
Display, explanations
The current measured value is
displayed as you have adjusted it
in the "Measured value display,
mode 13" function.
Output current in mA
Output current in mA
Time constant T63 in seconds
Adjustment range: 0.0 s to 100.0 s
Start of scale value in the selected
pressure unit
Full scale value in the selected
pressure unit
Ventilate the transmitter for gauge
pressure, differential pressure,
flow rate or level.
Evacuate the transmitter for
absolute pressure (< 0.1‰ of the
measuring span).
(Start of scale value remains
unaffected)
Measured value in pressure unit
constant output current in mA
"3.6"; "4", "12", "20" or "22.8"
Switch off using the [M] key.
Operation
6.5 Local operation
Factory setting
(default value)
0 s
"0"; for ordering
options Y01 and
Y02 as ordered
Measuring cell full-
scale value;
for ordering
options Y01 and
Y02 as ordered
77