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SITRANS P250 differential pressure transmitter |
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Application |
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Differential pressure transmitter |
Liquids and neutral gases |
Mode of operation |
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Measuring principle |
Piezo-resistive measuring cell (ceramic diaphragm) |
Input |
|
Measured variable |
Differential pressure |
Measuring range |
0 ... 0.1 to 0 ... 25 bar (0 ... 1.45 to 0 ... 363 psi) |
Operating pressure |
25 bar at a differential pressure range > 6 bar 50 bar at a differential pressure range > 10 bar |
Burst pressure |
1.5 x operating pressure |
Output |
|
Output signal |
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|
4 ... 20 mA |
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0 ... 5 V DC and 0 ... 10 V DC |
Load |
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> 10 k |
|
(UH - 11 V) / 0.02 A |
Measuring accuracy |
|
Error in measurement at limit setting incl. hysteresis and reproducibility |
1 % of typical full-scale value, see "Measuring range" table |
Long-term stability acc. to IEC 60770 |
0.5 % of full-scale value/year |
Influence of ambient temperature |
|
|
0.6 % / 10 K of full-scale value ( 1.2 % / 10 K for measuring cell 0 ... 0.1 bar (1.45 psi)) |
|
0.22 % / 10 K of full-scale value ( 0.37 % / 10 K for measuring cell 0 ... 0.1 bar (1.45 psi)) |
Dynamic behavior |
Suitable for static and dynamic measurements |
Step response time T99 |
< 5 ms |
Load variation |
< 50 Hz |
Rated conditions |
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Ambient conditions |
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- 15 ...+ 85 °C (5 ... 185 °F) |
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- 15 ...+ 85 °C (5 ... 185 °F) |
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- 40 ...+ 85 °C (-40 ... +185 °F) |
Degree of protection to IEC 60529 |
IP65 |
Mounting position |
Any |
Mounting |
Mounting bracket, included in delivery |
Design |
|
Weight |
Approx. 430 g (approx. 0.95 lb) |
Enclosure material |
Stainless steel 1.4305/AISI 303 |
Electrical connection |
|
Process connection |
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Wetted parts materials |
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Stainless steel 1.4305/AISI 303, CuZn nickel-plated |
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Ceramic Al2O3 (96 %) |
|
FPM (standard), EPDM, NBR, MVQ, CR |
Power supply UH |
|
Terminal voltage on pressure transmitter |
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|
11 ... 33 V DC |
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11 ... 33 V DC/ 24 V AC ±15 % |
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18 ... 33 V DC/ 24 V AC ±15 % |
Current consumption at nominal pressure |
|
|
< 20 mA |
|
< 5 mA |
Protection against polarity reversal |
Protected against short-circuit and polarity reversal. Each connection against the other with max. supply voltage. |
Certificates and approvals |
|
Approval |
CE conformity |
Measuring range |
Max. permissible operating pressure |
Burst pressure |
Max. permissible operating pressure |
Accuracy |
|
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[bar] |
[inH2O] |
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0 ... 0,1 |
0 ... 40.18 |
25 bar |
37.5 bar |
0.6 bar |
1,0 % |
0 ... 0,2 |
0 ... 80.37 |
25 bar |
37.5 bar |
0.6 bar |
0,8 % |
0 ... 0,25 |
0 ... 100.46 |
25 bar |
37.5 bar |
0.6 bar |
0,5 % |
0 ... 0,3 |
0 ... 120.56 |
25 bar |
37.5 bar |
0.6 bar |
0,5 % |
0 ... 0,4 |
0 ... 160.74 |
25 bar |
37.5 bar |
1.2 bar |
0,8 % |
0 ... 0,5 |
0 ... 200.9 |
25 bar |
37.5 bar |
1.2 bar |
0,5 % |
0 ... 0,6 |
0 ... 241.0 |
25 bar |
37.5 bar |
1.2 bar |
0,5 % |
0 ... 1,0 |
0 ... 402.0 |
25 bar |
37.5 bar |
2 bar |
0,5 % |
0 ... 1,6 |
0 ... 643.0 |
25 bar |
37.5 bar |
3.2 bar |
0,5 % |
0 ... 2,5 |
0 ... 1005 |
25 bar |
37.5 bar |
5 bar |
0,5 % |
0 ... 4 |
0 ... 1607 |
25 bar |
37.5 bar |
8 bar |
0,5 % |
0 ... 6 |
0 ... 2411 |
25 bar |
37.5 bar |
12 bar |
0,5 % |
0 ... 10 |
0 ... 4019 |
50 bar |
75 bar |
20 bar |
0,5 % |
0 ... 16 |
0 ... 6430 |
50 bar |
75 bar |
32 bar |
0,5 % |
0 ... 25 |
0 ... 10046 |
50 bar |
75 bar |
50 bar |
0,5 % |