Siemens SITRANS P Brochure & Specs page 35
Measuring instruments for pressure
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Also See for SITRANS P:
- Operating instructions manual (280 pages) ,
- Compact operating instructions (94 pages) ,
- Compact operating instructions (98 pages)
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SITRANS P300 for gage pressure and absolute pressure
Input of absolute pressure, with front-flush diaphragm
Measured variable
Spans (infinitely adjustable) or
nominal measuring range and
max. pemissible test pressure
Lower measuring limit
Upper measuring limit
• Measuring cell with silicone oil
Output
Output signal
Physical bus
With polarity reversal protection
Electrical damping T
(step width 0.1 s)
63
Accuracy
Reference conditions
(All error data refer always refer to the set
span)
Measurement deviation with cut-off point set-
ting, including hysteresis and repeatability.
Linear characteristic curve
• r ≤ 10
• 10 < r ≤ 30
• 30 < r ≤ 100
Settling time T
without electrical damping
63
Long-term drift at ± 30 °C (± 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)
Influence of the medium temperature (only
with front-flush diaphragm)
• Temperature difference between medium
temperature and ambient temperature
© Siemens AG 2008
SITRANS P measuring instruments for pressure
Transmitters for food, pharmaceuticals and biotechnology
HART
Absolute pressure (front-flush)
Span
Max. perm. test pres-
sure
43 ... 1300 mbar a
10 bar a
(0.62 ... 18.9 psi a)
(145 psi a)
0.16 ... 5 bar a
30 bar a
(2.32 ... 72.5 psi a)
(435 psi a)
1 ... 30 bar a
100 bar a
(14.5 ... 435 psi a)
(1450 psi a)
Depending on the process connection, the span
may differ from these values
0 bar a (0 psi a)
100% der max. Messspanne
4 ... 20 mA
-
No
Set to 0.1 s (0 ... 100 s)
To EN 60770-1
Increasing characteristic, start-of-scale value 0 bar, stainless steel seal diaphragm, measuring cell
with silicone oil, room temperature 25 °C (77 °F), span ratio (r = max. span / set span)
Gage pressure
Absolute
pressure
≤ (0.0029 ⋅ r + 0.071)% ≤ 0,1%
≤ (0.0045 ⋅ r + 0.071)% ≤ 0,2%
≤ (0.005 ⋅ r + 0.05)%
-
Approx. 0.2 s
≤ (0.25 ⋅ r)%/5 years
≤ (0.1 ⋅ r)%/year
≤ (0.1 ⋅ r +0.2)%
≤ (0.1 ⋅ r + 0.15)% / 10 K
3 mbar/10 K (0.04 psi/10 K)
SITRANS P300 for gage and absolute pressure
PROFIBUS PA and FOUNDATION Fieldbus
Nominal measuring
range
1300 mbar a
(18.9 psi a)
5 bar a
(72,5 psi a)
30 bar a
(435 psi a)
Depending on the process connection, the nomi-
nal measuring range may differ from these values
100% des max. Nennmessbereichs
Digital PROFIBUS PA signal
IEC 61158-2
Yes
(Absolute
Gage pressure
pressure,
front-
flushed)
≤ 0,075%
≤ 0,2%
≤ 0,4%
-
≤ 0.25%/5 years
≤ (0.2 ⋅ r
≤ 0,3%
+0.3)%
≤ (0.2 ⋅ r +
≤ 0.25%/10 K
0.3)%/10 K
Siemens FI 01 · 2009
Max. perm. test pres-
sure
10 bar a
(145 psi a)
30 bar a
(435 psi a)
100 bar a
(1450 psi a)
Absolute
(Absolute
pressure
pressure,
front-
flushed)
≤ 0,1%
≤ 0,2%
≤ 0.1%/year
≤ 0,5%
≤ 0.5%/
10 K
2/35
2
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