Sitrans p measuring instruments for pressure, Ds iii series for gage pressure 2/71 – Siemens SITRANS P User Manual
Page 71
SITRANS P measuring instruments for pressure
Transmitters for gage, absolute and differential pressure, flow and level
DS III series
for gage pressure
2/71
Siemens FI 01 · 2009
2
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
immunity
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 (2320 psi g) 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 g)) to DIN 19213 with mounting thread M10 or
7
/
16
-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
H
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) avail-
able
-
Yes
SITRANS P, DS III series for gage pressure
HART
PROFIBUS PA or FOUNDATION Fieldbus
© Siemens AG 2008