© Siemens AG 2008

SITRANS P measuring instruments for pressure

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

DS III series

for gage pressure

Technical specifications

 

 

SITRANS P, DS III series for gage pressure

 

 

 

 

 

 

 

 

 

 

HART

 

 

 

PROFIBUS PA or FOUNDATION Fieldbus

 

 

 

 

 

 

 

 

 

 

2

 

Input

 

 

 

 

 

 

 

 

Measured variable

Gage pressure

 

 

 

 

 

 

 

 

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)

 

 

 

1.6 ... 160 bar g

 

250 bar g

 

160 bar g

 

250 bar g

 

 

 

(23.2 ... 2320 psi g)

 

(3626 psi g)

 

(2320 psi g)

 

(3626 psi g)

 

 

 

4.0 ... 400 bar g

 

600 bar g

 

400 bar g

 

600 bar g

 

 

 

(58 ... 5802 psi g)

 

(8700 psi g)

 

(5802 psi g)

 

(8700 psi g)

 

 

 

7.0 ... 700 bar g

 

800 bar g

 

700 bar g

 

800 bar g

 

 

 

(102 ... 10153 psi g)

 

(11603 psi g)

 

(10153 psi g)

 

(11603 psi g)

 

 

Lower measuring limit

 

 

 

 

 

 

 

 

 

• Measuring cell with silicone oil filling

30 mbar a (0.435 psi a)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Measuring cell with inert filling liquid

30 mbar a (0.435 psi a)

 

 

 

 

 

 

 

 

Upper measuring limit

100% of max. span (max. 160 bar g (2320 psi g) with oxygen measurement and inert liquid)

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)%

 

 

Long-term drift (temperature change ±30 °C

(0.25 r)% every 5 years

 

0.25% every 5 years

(±54 °F))

 

 

 

Influence of ambient temperature

 

 

 

• at -10 ... +60 °C (14 ... 140 °F)

(0.08 r + 0.1)%

 

0,3%

 

 

(at 700 bar: (0.1 r + 0.2)%)

 

 

• at -40 ... -10 °C and +60 ... +85 °C

(0.1 r + 0.15)%/10 K

 

0.25%/10 K

(-40 ... +14 °F and 140 ... 185 °F)

 

 

 

Measured Value Resolution

-

 

3 10-5of nominal measuring range

2/70

Siemens FI 01 · 2009

Page 70
Image 70
Siemens P technical specifications DS III series For gage pressure, Technical specifications