SITRANS P measuring instruments for pressure
Transmitters for gage, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from differential pressure series)
■
Technical specifications
SITRANS P, DS III series for absolute pressure (from differential pressure series)
Input
2
Measured variable
Spans (infinitely adjustable) or
nominal measuring range and
max. permissible working pressure
Lower measuring limit
• Measuring cell with silicone oil filling
Upper measuring limit
Output
Output signal
• Lower limit (infinitely adjustable)
• Upper limit (infinitely adjustable)
Load
• Without HART communication
• With HART communication
Physical bus
With polarity reversal protection
Accuracy
Reference conditions
(All error data refer always refer to the set
span)
Error in measurement and fixed-point setting
(including hysteresis and repeatability)
• Linear characteristic
- r
10
- 10 < r
30
Long-term drift (temperature change
( 54 °F))
Influence of ambient temperature
• at -10 ... +60 °C (14 ... 140 °F)
• at -40 ... -10 °C and +60 ... +85 °C
(-40 ... +14 °F and 140 ... 185 °F)
Measured Value Resolution
2/98
Siemens FI 01 · 2009
© Siemens AG 2008
HART
Absolute pressure pressure
Span
Maximum working pres-
sure
8.3 ... 250 mbar a
32 bar a
(0.12 ... 3.6 psi a)
(464 psi a)
43 ... 1300 mbar a
32 bar a
(0.62 ... 18.9 psi a)
(464 psi a)
160 ... 5000 mbar a
32 bar a
(2.32 ... 72.5 psi a)
(464 psi a)
1 ... 30 bar a
160 bar a
(14.5 ... 435 psi a)
(2320 psi a)
5.3 ... 100 bar a
160 bar a
(77 ... 1450 psi a)
(2320 psi a)
(for connection thread
M10 and
the process flanges)
0 mbar a (0 psi a)
100% of max. span
4 ... 20 mA
3.55 mA, factory preset to 3.84 mA
23 mA, factory preset to 20.5 mA or optionally set
to 22.0 mA
R
(U
- 10.5 V)/0.023 A in ,
B
H
U
: Power supply in V
H
R
= 230 ... 500
(SIMATIC PDM) or
B
R
= 230 ... 1100
(HART Communicator)
B
-
-
To EN 60770-1
Increasing characteristic, start-of-scale value 0 bar, stainless steel seal diaphragm, silicone oil filling,
room temperature 25 °C (77 °F)) r: Span ratio (r = max. span / set span)
0.1%
0.2%
30 °C
(0.1 r)%/year
(0.1 r +0.2)%
(0.1 r + 0.15)%/10 K
-
PROFIBUS PA or FOUNDATION Fieldbus
Nominal measuring
range
250 mbar a
(3.6 psi a)
1300 bar a
(18.9 psi a)
5 bar a
(72.5 psi a)
30 bar a
(435 psi a)
100 bar a
(1450 psi a)
7
/
-20 UNF in
16
Digital PROFIBUS PA or FOUNDATION Fieldbus
signal
-
-
-
-
IEC 61158-2
Yes
0.1%
0.1%/year
0.3%
0.25%/10 K
-5
3 10
of nominal measuring range
Maximum working pres-
sure
32 bar a
(464 psi a)
32 bar a
(464 psi a)
32 bar a
(464 psi a)
160 bar a
(2320 psi a)
160 bar a
(2320 psi a)
(for connection thread
7
M10 and
/
-20 UNF in
16
the process flanges)