Siemens P Technical specifications, Input absolute pressure, with front-flush Diaphragm

© Siemens AG 2008

SITRANS P measuring instruments for pressure

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

DS III series for gage and absolute pressure, with front-flush diaphragm

■Technical specifications

SITRANS P, DS III series for gage and absolute pressure, with front-flush diaphragm

	HART		PROFIBUS PA or FOUNDATION Fieldbus
Input gage pressure, with front-flush					2
diaphragm
Measured variable	Gage pressure, flush-mounted
Spans (infinitely adjustable) or	Span	Max. perm. test pres-	Nominal measuring	Max. perm. test pres-
nominal measuring range and		sure	range	sure
max. permissible test pressure
	0.01 ... 1 bar g	6 bar g	1 bar g	6 bar g
	(0.145 ... 14.5 psi g)	(87 psi g)	(14.5 psi g)	(87 psi g)
	0.04 ... 4 bar g	10 bar g	4 bar g	10 bar g
	(0.58 ... 58 psi g)	(145 psi g)	(58 psi g)	(145 psi g)
	0.16 ... 16 bar g	32 bar g	16 bar g	32 bar g
	(2.23 ... 232 psi g)	(464 psi g)	(232 psi g)	(464 psi g)
	0.6 ... 63 bar g	100 bar g	63 bar g	100 bar g
	(9.14 ... 914 psi g)	(1450 psi g)	(914 psi g)	(1450 psi g)
Lower measuring limit	-100 mbar a (-1.45 psi a)
Upper measuring limit	100% of max. span		100% of nominal measuring range
Input absolute pressure, with front-flush
diaphragm
Measured variable	Absolute pressure, flush-mounted
Spans (infinitely adjustable) or	Span	Max. perm. test pres-	Nominal measuring	Max. perm. test pres-
nominal measuring range and		sure	range	sure
max. permissible test pressure	43 ... 1300 mbar a	10 bar a	1300 mbar a	10 bar a
	(0.62 ... 18.9 psi a)	(145 psi a)	(18.9 psi a)	(145 psi a)
	0,16 ... 5 bar a	30 bar a	5 bar a	30 bar a
	(2.32 ... 72,5 psi a)	(435 psi a)	(72,5 psi a)	(435 psi a)
	1 ... 30 bar a	100 bar a	30 bar a	100 bar a
	(14.5 ... 435 psi a)	(1450 psi a)	(435 psi a)	(1450 psi a)
	Depending on the process connection, the span		Depending on the process connection, the nomi-
	may differ from these values		nal measuring range may differ from these values
Lower measuring limit	0 bar a (0 psi a)
Upper measuring limit	100% of max. span		100% of nominal measuring range
Output
Output signal	4 ... 20 mA		Digital PROFIBUS PA or FOUNDATION Fieldbus
			signal
• Lower limit (infinitely adjustable)	3.55 mA, factory preset to 3.84 mA		-
• Upper limit (infinitely adjustable)	23 mA, factory preset to 20.5 mA or optionally		-
	set to 22.0 mA
Load
• Without HART communication	RB ≤ (UH - 10.5 V)/0.023 A in Ω,
			-
	UH : Power supply in V
• With HART communication	RB = 230 ... 500 Ω (SIMATIC PDM) or		-
	RB = 230 ... 1100 Ω (HART Communicator)
Physical bus	-		IEC 61158-2
With polarity reversal protection	-		Yes
Accuracy	To EN 60770-1
Reference conditions	Increasing characteristic, start-of-scale value 0 bar, stainless steel seal diaphragm, silicone oil fill-
(All error data refer always refer to the set span)	ing, room temperature 25 °C (77 °F)) r: Span ratio (r = max. span/set span)
Error in measurement and fixed-point setting
(including hysteresis and repeatability)
	Gage pressure,	Absolute pressure,	Gage pressure,	Absolute pressure,
	front-flushed	front-flushed	front-flushed	front-flushed
• Linear characteristic			≤ 0,075%	≤ 0,2%
- r ≤ 10	≤ (0.0029 ⋅ r + 0.071)%	≤ 0,2%
- 10 < r ≤ 30	≤ (0.0045 ⋅ r + 0.071)%	≤ 0,4%
- 30 < r ≤ 100	≤ (0.005 ⋅ r + 0.05)%	-
Long-term drift (temperature change ±30 °C	≤ (0.25 ⋅ r)% every 5		≤ 0.25% every 5 years
(±54 °F))	years

Siemens FI 01 · 2009

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