9 Technical Data
General information
Manufacturer
Hauser
Instrument
Pressure transmitter
Designation
Cerabar S PMP 71 K
Technical documentation
Version
Technical data
BA 234P/00/en
05.07
DIN 19259
Application
Measurement of absolute and gauge pressure in gases, vapours and liquids
Operation and System Design
Measuring principle
PMP 71 K with metal sensor
The process pressure acting on the metallic separating diaphragm of the
sensor is transmitted via a fill fluid to a resistance bridge. The change in
the output voltage of the bridge is proportional to the pressure and is then
measured.
Volume of chamber: approx. 1 mm
3
(0.039 in
3
)
with 4…20 mA current output
Operation via four keys on the device and a plug-in display module
Construction
Threaded process connection according to European or American
standards, refer to Technical Information TI 331P.
Input
Measured variables
Absolute or gauge pressure
Measuring ranges
Vacuum resistance
to 10 mbar
absolute
Adjusting the span (turndown)
20:1
Zero point increase and
decrease
Within measurement limits
Output
4…20 mA
Output signal
4…20 mA with HART protocol,
under-run 3.8 mA (4 mA adjustable), over-run 20.5 mA
Load diagram
PMP 71 K
Type of
pressure
Measurement
limits
Nominal
value
Minimum
span
Overload
bar
bar
bar
bar
gauge
–1…1
1
*
0.05
4
gauge
–1…2.5
2.5
0.125
10
gauge
–1…10
10
0.5
40
gauge
–1…40
40
**
2
160
gauge
–1…100
100
**
5
400
gauge
–1…400
400
**
20
600
absolute
0…1
1
*
0.05
4
absolute
0…2.5
2.5
0.125
10
absolute
0…10
10
0.5
40
absolute
0…40
40
2
160
absolute
0…100
100
5
400
absolute
0…400
400
20
600
*
Technical data for linearity
and temperature effect are
doubled.
**
Absolute pressure sensors
1560
U/V
R/
Ω
0
1000
500
11.5
30
40
45
20
9 Technical Data
Cerabar S
48
Hauser
