© 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

 

 

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

 

 

 

 

 

 

 

 

 

 

 

HART

 

PROFIBUS PA or FOUNDATION Fieldbus

 

 

 

 

 

 

 

 

Square-root characteristic (flow 25 ... 50%)

 

 

0,2

 

 

- r 10

0,2%

 

-

2

 

- 10 < r 30

0,4%

 

-

 

 

 

 

 

Long-term drift (temperature change ± 30 °C

(0.25 r)% every 5 years

 

(0.25% every 5 years

 

 

(± 54 °F))

static pressure max. 70 bar g (1015 psi g)

 

static pressure max. 70 bar g (1015 psi g)

 

 

• 20 mbar (0.29 psi)-measuring cell

(0.2 r) per year

 

0.2 per year

 

 

Influence of ambient temperature

(0.08 r + 0.1)%

 

0,3%

 

 

 

 

 

• at -10 ... +60 °C (14 ... 140 °F)

 

 

 

 

 

 

• 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)

(Twice the value with 20-mbar (0.29 psi)

 

 

 

 

 

measuring cell)

 

 

 

 

Influence of static pressure

 

 

 

 

 

• on the zero point

(0.15 r)% per 100 bar (1450 psi)

 

0.15% je 100 bar (1450 psi)

 

 

 

 

 

- 20 mbar (0.29 psi)-measuring cell

(0.15 r)% per 32 bar (464 psi)

 

0.15% je 32 bar (464 psi)

 

 

 

 

 

 

• on the span

0.2% je 100 bar (1450 psi)

 

-

 

 

- 20 mbar (0.29 psi)-measuring cell

0.2% je 32 bar (464 psi)

 

-

 

 

 

 

 

 

Measured Value Resolution

-

 

3 10-5of nominal measuring range

 

 

Rated operating conditions

 

 

 

 

 

Degree of protection (to EN 60529)

IP65

 

 

 

 

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

To EN 61326 and NAMUR NE 21

 

 

 

 

immunity

 

 

 

 

 

Material of the mounting bracket

 

 

 

 

 

• Steel

Sheet steel, Mat. No. 1.0330, chrome-plated

 

 

 

 

• Stainless steel

Stainless steel, Mat. No. 1.4301 (SS304)

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

Measuring cell filling

Silicone oil or inert filling liquid (max. 160 bar (2320 psi g) with oxygen measurement)

 

 

Process connection

Female thread ¼-18 NPT and flange connection with mounting thread M10 to DIN 19213 or

 

 

 

7/ -20 UNF to EN 61518

 

 

 

 

 

16

 

 

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Siemens FI 01 · 2009

Page 108
Image 108
Siemens P 108, Weight without options ≈ 4.5 kg ≈ 9.9 lb Housing material, Wetted parts materials Seal diaphragm