Siemens P technical specifications Design

© Siemens AG 2008

SITRANS P measuring instruments for pressure

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

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

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

	HART	PROFIBUS PA or FOUNDATION Fieldbus
Rated operating conditions
Degree of protection (to EN 60529)	IP65
			2
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-	-20 ... +60 °C (-4 ... +140 °F)
tion
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-	To EN 61326 and NAMUR NE 21
munity
Design
Weight (without options)	≈ 4.5 kg (≈ 9.9 lb)
Housing material	Poor in copper die-cast aluminium, GD-AlSi12 or stainless steel precision casting, mat. No. 1.4408
Wetted parts materials
• Seal diaphragm	Stainless steel, mat. No. 1.4404/316L or Hastelloy C276, mat. No. 2.4819, Monel, mat. No. 2.4360,
	tantalum or gold
• Process flanges and sealing screw	Stainless steel, mat. No. 1.4408, Hastelloy C4, mat. No. 2.4610 or Monel, mat. No. 2.4360
• O-Ring	FPM (Viton) or optionally: PTFE, FEP, FEPM and NBR
Measuring cell filling	Silicone oil or inert filling liquid (max. 160 bar (2320 psi a) with oxygen measurement)
Process connection	¼-18 NPT and flange connection to DIN 19213 with mounting thread M10 to DIN 19213 or
	7/ -20 UNF to EN 61518
	16
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 UH		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-	-	Yes
able

Siemens FI 01 · 2009

2/99