Siemens P technical specifications Conditions of use, Certificates and approvals Approval

© Siemens AG 2008

SITRANS P measuring instruments for pressure

Transmitters for gage, absolute and differential pressure

Conditions of use
Ambient conditions
• Temperature of medium	-15 ... +85 °C (5 ... 185 °F)
• Ambient temperature	-15 ... +85 °C (5 ... 185 °F)
• Storage temperature	-40 ... +85 °C (-40 ... +185 °F)
Degree of protection acc. to	IP65
EN 60529
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	• Plug EN 175301-803-A
	• Circular plug EN 60130-9
	• Cable 1.5 m
Process connection	• Hose sleeve Ø 4 mm/6 mm
	• Pipe union Ø 6 mm/8 mm
	• Male thread 7/16-20 UNF, G1/8
	• Female thread 1/8-27 NPT
	• (Standard), G1/8
Wetted parts materials	Stainless steel 1.4305/AISI 303,
	CuZn nickel-plated
• Process connection	Approx. 430 g (approx. 0.95 lb)
• Diaphragm	Ceramic Al2O3 (96 %)
• Sealing material	FPM (standard), EPDM, NBR,
	MVQ, CR
Power supply UH
Terminal voltage on pressure trans-
mitter
• 2-wire, 4 ... 20 mA	11 ... 33 V DC
• 3-wire, 0 ... 5 V DC	11 ... 33 V DC/
	24 V AC ±15 %
• 3-wire, 0 ... 10 V DC	18 ... 33 V DC/
	24 V AC ±15 %
Current consumption at nominal

SITRANS P250 for differential pressure

Measuring range			Max. per-	Burst	Max. per-	Accuracy
			missible	pressure	missible
			operating		operating
			pressure		pressure
			(on either		(on one
			side)		side)		2
[bar]		[psi]
0	... 0.1	0 ... 1.45	25 bar	37,5 bar	0.6 bar	≤ 1,0 %
			(363 psi)	(544 psi)	(8.7 psi)
0	... 0.2	0 ... 2.9	25 bar	37,5 bar	0.6 bar	≤ 1,0 %
			(363 psi)	(544 psi)	(8.7 psi)
						≤ 0,5 %
0	... 0.25	0 ... 3.63	25 bar	37,5 bar	0.6 bar
			(363 psi)	(544 psi)	(8.7 psi)
0	... 0.3	0 ... 4.35	25 bar	37,5 bar	0.6 bar	≤ 0,5 %
			(363 psi)	(544 psi)	(8.7 psi)
0	... 0.4	0 ... 5.8	25 bar	37,5 bar	1.2 bar	≤ 0,8 %
			(363 psi)	(544 psi)	(17.4 psi)
0	... 0.5	0 ... 7.25	25 bar	37,5 bar	1.2 bar	≤ 0,5 %
			(363 psi)	(544 psi)	(17.4 psi)
0	... 0.6	0 ... 8.7	25 bar	37,5 bar	1.2 bar	≤ 0,5 %
			(363 psi)	(544 psi)	(17.4 psi)
0	... 1.0	0 ... 14.5	25 bar	37,5 bar	2 bar	≤ 0,5 %
			(363 psi)	(544 psi)	(29 psi)
0	... 1.6	0 ... 23.2	25 bar	37,5 bar	3.2 bar	≤ 0,5 %
			(363 psi)	(544 psi)	(46.4 psi)
0	... 2.5	0 ... 36.3	25 bar	37,5 bar	5 bar	≤ 0,5 %
			(363 psi)	(544 psi)	(72.5 psi)
0	... 4	0 ... 58	25 bar	37,5 bar	8 bar	≤ 0,5 %
			(363 psi)	(544 psi)	(116 psi)
0	... 6	0 ... 87	25 bar	37,5 bar	12 bar	≤ 0,5 %
			(363 psi)	(544 psi)	(174 psi)
0	... 10	0 ... 145	50 bar	75 bar	20 bar	≤ 0,5 %
			(725 psi)	(1088 psi)	(290 psi)
0	... 16	0 ... 232	50 bar	75 bar	32 bar	≤ 0,5 %
			(725 psi)	(1088 psi)	(464 psi)
0	... 25	0 ... 363	50 bar	75 bar	50 bar	≤ 0,5 %
			(725 psi)	(1088 psi)	(725 psi)

■Schematics

pressure
• 2-wire	< 20 mA
• 3-wire	< 5 mA
Protection against polarity reversal	Protected against short-circuit
	and polarity reversal. Each con-
	nection against the other with
	max. supply voltage.

1

2

1+

2-

			Connection: 1 (+),
IO		+		2 (-)
	RL	UB	IO	Output current
			RL	Load
			UB	Power supply

Certificates and approvals
Approval	CE conformity

Connection with current output 4 ... 20 mA and plug to EN 175301-803-A

				Connection: 1		(+),
3	1+	IO	+		3	(-)
	2		UB	IO	Output current
		RL
1	3-			RL	Load
				UB	Power supply

Connection with current output 4 ... 20 mA and round connector

					Connection: 1 (+, brown),
1+		IO	+				2 (-, green)
	2-			UB	I	O	Output current
			RL				Power supply
					UB
					RL		Load

Connection with current output 4 ... 20 mA and permanently fixed cable

Siemens FI 01 · 2009

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