Siemens SITRANS P Manual de usuario descargar pdf (Pagina 125)

SITRANS P measuring instruments for pressure

Transmitters for gage, absolute and differential pressure, flow and level

DS III series

for level

2/125

Siemens FI 01 · 2009

Influence of static pressure

• on the zero point

- 250 mbar (3.63 psi) measuring cell ≤ (0.3 ⋅ r)% per nominal pressure ≤ 0.3% per nominal pressure

- 600 mbar (8.7 psi) measuring cell ≤ (0.15 ⋅ r)% per nominal pressure ≤ 0.15% per nominal pressure

- 1600 and 5000 mbar (23.2 and 72.5 psi)

measuring cells

≤ (0.1 ⋅ r)% per nominal pressure ≤ 0.1% per nominal pressure

• on the span ≤ (0.1 ⋅ r)% per nominal pressure ≤ 0.1% per nominal pressure

Measured Value Resolution - 3 ⋅ 10

-5

of nominal measuring range

Rated operating conditions

Degree of protection (to EN 60529) IP65

Process temperature Note: Always take into account assignment of max. permissible working temperature to max. per-

missible working pressure of the respective flange connection!

• Measuring cell with silicone oil filling -40 ... +100 °C (-40 ... +212 °F)

- High-pressure side p

abs

≥ 1bar: -40 ... +175 °C (-40 ... +347 °F)

abs

≥ 1bar: -40 ... +80 °C (-40 ... +176 °F)

- Low-pressure side -40 ... +100 °C (-40 ... +212 °F)

-20 ... +60 °C (-4 ... +140 °F) in conjunction with dust explosion protection

Ambient conditions

• Ambient temperature

- Digital indicators -30 ... +85 °C (-22 ... +185 °F)

• Storage temperature -50 ... +85 °C (-58 ... +185 °F)

• Climatic class

- Condensation Permissible

• Electromagnetic compatibility

- Emitted interference and interference immu-

nity

To EN 61326 and NAMUR NE 21

Design

Weight (without options)

• To EN (pressure transmitter with mounting

flange, without tube)

≈ 11 ... 13 kg (≈ 24.2 ... 28.7 lb)

• To ASME (pressure transmitter with mounting

flange, without tube)

≈ 11 ... 18 kg (≈ 24.2 ... 39.7 lb)

Wetted parts materials Poor in copper die-cast aluminium, GD-AlSi12 or stainless steel precision casting, mat. No. 1.4408

Housing material

High-pressure side

• Seal diaphragm of mounting flange Stainless steel, mat. No. 1.4404/316L, Monel, mat. No. 2.4360, Hastelloy B2, mat. No. 2.4617,

Hastelloy C276, mat. No. 2.4819, Hastelloy C4, mat. No. 2.4610, tantalum, PTFE, ECTFE

Measuring cell filling Silicone oil

Process connection

• High-pressure side Flange to EN and ASME

• Low-pressure side Female thread ¼-18 NPT and flange connection with mounting thread M10 to DIN 19213 or

-20 UNF to EN 61518

Power supply U

Supplied through bus

Terminal voltage on transmitter 10.5 ... 45 V DC

10.5 ... 30 V DC in intrinsically-safe mode

Separate 24 V power supply necessary - No

Bus voltage

• Not Ex - 9 ... 32 V

• With intrinsically-safe operation - 9 ... 24 V

Current consumption

• Basic current (max.) - 12.5 mA

• Startup current ≤ basic current - Yes

• Max. current in event of fault - 15.5 mA

Fault disconnection electronics (FDE) available - Yes

SITRANS P, DS III series for level

HART PROFIBUS PA or FOUNDATION Fieldbus

1 2 ... 120 121 122 123 124 125 126 127 128 129 130 ... 233 234

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Siemens SITRANS P Manual de usuario Pagina 125

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