Sitrans p measuring instruments for pressure – Siemens SITRANS P User Manual

Page 90

SITRANS P measuring instruments for pressure

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

DS III series for absolute pressure
(from gage pressure series)

2/90

Siemens FI 01 · 2009

Rated operating conditions

Degree of protection (to EN 60529)

IP65

Process temperature

• Measuring cell with silicone oil filling

-40 ... +100 °C (-40 ... +212 °F)

• Measuring cell with inert filling liquid

-20 ... +100 °C (-4 ... +212 °F)

• In conjunction with dust explosion protec-

tion

-20 ... +60 °C (-4 ... +140 °F)

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 im-

munity

To EN 61326 and NAMUR NE 21

Design

Weight (without options)

≈ 1.5 kg (≈ 3.3 lb)

Housing material

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

Wetted parts materials

• Connection shank

Stainless steel, mat. No. 1.4404/316L or Hastelloy C4, mat. No. 2.4610

• Oval flange

Stainless steel, mat. No. 1.4404/316L

• Seal diaphragm

Stainless steel, mat. No. 1.4404/316L or Hastelloy C276, mat. No. 2.4819

Measuring cell filling

Silicone oil or inert filling liquid (max. 160 bar a (2320 psi a) with oxygen measurement)

Process connection

Connection shank G½A to DIN EN 837-1, female thread ½ -14 NPT or oval flange (PN 160
(MWP 2320 psi a)) to DIN 19213 with mounting thread M10 or

-20 UNF to EN 61518

Material of the mounting bracket

• Steel

Sheet steel, Mat. No. 1.0330, chrome-plated

• Stainless steel

Stainless steel, Mat. No. 1.4301 (SS304)

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

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) avail-
able

Yes

SITRANS P, DS III series for absolute pressure (from the gage pressure series)

HART

PROFIBUS PA or FOUNDATION Fieldbus