Siemens SITRANS P Brochure & Specs page 108

Measuring instruments for pressure
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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
• Square-root characteristic (flow 25 ... 50%)
- r
10
2
- 10 < r
30
Long-term drift (temperature change
( 54 °F))
• 20 mbar (0.29 psi)-measuring cell
Influence of ambient temperature
• at -10 ... +60 °C (14 ... 140 °F)
• at -40 ... -10 °C and +60 ... +85 °C
(-40 ... +14 °F and 140 ... 185 °F)
Influence of static pressure
• on the zero point
- 20 mbar (0.29 psi)-measuring cell
• on the span
- 20 mbar (0.29 psi)-measuring cell
Measured Value Resolution
Rated operating conditions
Degree of protection (to EN 60529)
Process temperature
• Measuring cell with silicone oil filling
• Measuring cell with inert filling liquid
• In conjunction with dust explosion protec-
tion
Ambient conditions
• Ambient temperature
- Digital indicators
• Storage temperature
• Climatic class
- Condensation
• Electromagnetic compatibility
- Emitted interference and interference
immunity
Material of the mounting bracket
• Steel
• Stainless steel
Design
Weight (without options)
Housing material
Wetted parts materials
• Seal diaphragm
Measuring cell filling
Process connection
2/108
Siemens FI 01 · 2009
© Siemens AG 2008
HART
0,2%
0,4%
30 °C
(0.25 r)% every 5 years
static pressure max. 70 bar g (1015 psi g)
(0.2 r) per year
(0.08 r + 0.1)%
(0.1 r + 0.15)%/10 K
(Twice the value with 20-mbar (0.29 psi)
measuring cell)
(0.15 r)% per 100 bar (1450 psi)
(0.15 r)% per 32 bar (464 psi)
0.2% je 100 bar (1450 psi)
0.2% je 32 bar (464 psi)
-
IP65
-40 ... +100 °C (-40 ... +212 °F)
-20 ... +100 °C (-4 ... +212 °F)
-20 ... +60 °C (-4 ... +140 °F)
-30 ... +85 °C (-22 ... +185 °F)
-50 ... +85 °C (-58 ... +185 °F)
Permissible
To EN 61326 and NAMUR NE 21
Sheet steel, Mat. No. 1.0330, chrome-plated
Stainless steel, Mat. No. 1.4301 (SS304)
4.5 kg ( 9.9 lb)
Poor in copper die-cast aluminium, GD-AlSi12 or stainless steel precision casting, mat. No. 1.4408
Stainless steel, mat. No. 1.4404/316L or Hastelloy C276, mat. No. 2.4819, Monel, mat. No. 2.4360,
tantalum or gold
Silicone oil or inert filling liquid (max. 160 bar (2320 psi g) with oxygen measurement)
Female thread ¼-18 NPT and flange connection with mounting thread M10 to DIN 19213 or
7
/
-20 UNF to EN 61518
16
PROFIBUS PA or FOUNDATION Fieldbus
0,2
-
-
(0.25% every 5 years
static pressure max. 70 bar g (1015 psi g)
0.2 per year
0,3%
0.25%/10 K
0.15% je 100 bar (1450 psi)
0.15% je 32 bar (464 psi)
-
-
-5
3 10
of nominal measuring range

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