© Siemens AG 2008

SITRANS P measuring instruments for pressure

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

DS III series for differential pressure and flow

Technical specifications

SITRANS P, DS III series, for differential pressure and flow

 

HART

 

 

 

PROFIBUS PA or FOUNDATION Fieldbus

 

 

 

 

 

 

 

 

 

 

 

Input

 

 

 

 

 

 

 

 

2

Measured variable

Differential pressure and flow

 

 

 

 

 

Spans (infinitely adjustable) or

Span

 

Maximum working pres-

 

Nominal measuring

 

Maximum working pres-

 

 

 

 

 

nominal measuring range and

 

 

sure

 

range

 

sure

 

max. permissible working pressure

1 ... 20 mbar

 

32 bar

 

20 mbar g

 

32 bar

 

 

 

 

 

 

 

(0.4015 ... 8.031 inH2O)

 

(464 psi)

 

(8.031 inH2O)

 

(464 psi)

 

 

 

1 ... 60 mbar

 

160 bar

 

60 mbar

 

160 bar

 

(0.4015 ... 24.09 inH2O)

 

(2320 psi)

 

(24.09 inH2O)

 

(2320 psi)

 

2.5 ... 250 mbar

 

 

 

250 mbar

 

 

 

 

 

(1.004 ... 100.4 inH2O)

 

 

 

(100.4 inH2O)

 

 

 

 

 

6 ... 600 mbar

 

 

 

600 mbar

 

 

 

 

 

(2.409 ... 240.9 inH2O)

 

 

 

(240.9 inH2O)

 

 

 

 

 

16 ... 1600 mbar

 

 

 

1600 mbar

 

 

 

 

 

(6.424 ... 642.4 inH2O)

 

 

 

(642.4 inH2O)

 

 

 

 

 

50 ... 5000 mbar

 

 

 

5 bar

 

 

 

 

 

(20.08 ... 2008 inH2O)

 

 

 

(2008 inH2O)

 

 

 

 

 

0.3 ... 30 bar

 

 

 

30 bar

 

 

 

 

 

(4.35 ... 435 psi)

 

 

 

(435 psi)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.5 ... 250 mbar

 

420 bar

 

250 mbar

 

420 bar

 

(1.004 ... 100.4 inH2O)

 

(6091 psi)

 

(100.4 inH2O)

 

(6091 psi)

 

6 ... 600 mbar

 

 

 

600 mbar

 

 

 

 

 

(2.409 ... 240.9 inH2O)

 

 

 

(240.9 inH2O)

 

 

 

 

 

16 ... 1600 mbar

 

 

 

1600 mbar

 

 

 

 

 

(6.424 ... 642.4 inH2O)

 

 

 

(642.4 inH2O)

 

 

 

 

 

50 ... 5000 mbar

 

 

 

5 bar

 

 

 

 

 

(20.08 ... 2008 inH2O)

 

 

 

(2008 inH2O)

 

 

 

 

 

0.3 ... 30 bar

 

 

 

30 bar

 

 

 

 

 

(4.35 ... 435 psi)

 

 

 

(435 psi)

 

 

 

 

Lower measuring limit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Measuring cell with silicone oil filling

-100% of max. span (-33% with 30 bar (435 psi) measuring cell or 30 mbar a (0.44 psi))

Upper measuring limit

100% of max. span (for oxygen version and inert filling liquid; max. 160 bar g (2320 psi g))

 

 

 

 

 

 

 

 

 

 

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 filling,

(All error data refer always refer to the set

room temperature 25 °C (77 °F)) r: Span ratio (r = max. span / set span)

 

 

 

 

span)

 

 

 

 

 

 

 

 

 

Error in measurement and fixed-point setting

 

 

 

 

 

 

 

 

 

(including hysteresis and repeatability)

 

 

 

 

 

 

 

 

 

• Linear characteristic

 

 

 

 

0,075%

 

 

 

 

 

 

 

 

 

 

 

 

- r 10

(0.0029 r + 0.071)%

 

 

 

 

 

 

 

 

- 10 < r 30

(0.0045 r + 0.071)%

 

 

 

 

 

 

 

 

- 30 < r 100

(0.005 r + 0.05)%

 

 

 

 

 

 

 

 

Square-root characteristic (flow > 50%)

 

 

 

 

0,1%

 

 

 

 

- r 10

0,1%

 

 

 

 

 

 

 

 

- 10 < r 30

0,2%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Siemens FI 01 · 2009

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Image 107
Siemens P technical specifications DS III series for differential pressure and flow, 107, psi InH 2O Mbar 160 bar