Siemens SITRANS P - Manual (Page 80)

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
2/80 Siemens FI 01 · 2009
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Influence of ambient temperature
• at -10 ... +60 °C (14 ... 140 °F) ≤ (0.1 ⋅ r + 0.2)% ≤ (0,2 ⋅ r + 0,3)% ≤ 0,3% ≤ 0,5%
• at -40 ... -10 °C and +60 ... +85 °C
(-40 ... +14 °F and 140 ... 185 °F)
≤ (0.1 ⋅ r + 0.15)%/10 K ≤ (0,2 ⋅ r + 0,3)%/10 K ≤ 0.25%/10 K ≤ 0,5%/10 K
Influence of mounting position 0.1 mbar g (0.00145 psi g) per 10° inclination
Measured Value Resolution - 3 ⋅ 10 -5 of nominal measuring range
Influence of the medium temperature (only with
front-flush diaphragm)
• Temperature difference between medium tem-
perature and ambient temperature
3 mbar/10 K (0.04 psi/10 K)
Rated operating conditions
Installation conditions
Ambient temperature Observe the temperature class in areas subject to explosion hazard.
• Measuring cell with silicone oil -40 ... +85 °C (-40 ... +185 °F)
• Measuring cell with Neobee oil (with front-flush
diaphragm)
-10 ... +85 °C (14 ... +185 °F)
• Measuring cell with inert liquid (not with front-
flush diaphragm)
-20 ... +85 °C (-4 ... +185 °F)
• Digital display -30 ... +85 °C (-22 ... +185 °F)
• Storage temperature -50 ... +85 °C (-58 ... +185 °F)
(with Neobee: -20 ... +85 °C (-4 ... +185 °F)
Climatic class
Condensation Permissible
Degree of protection to EN 60529 IP65, IP68, NEMA X, enclosure cleaning, resistant to lyes, steam to 150° C (302 °F)
Electromagnetic compatibility
• Emitted interference and interference immunity To EN 61326 and NAMUR NE 21
Medium conditions
Process temperature
• Measuring cell with silicone oil -40 ... +100 °C (-40 ... +212 °F)
• Measuring cell with silicone oil (with front-flush
diaphragm)
-40 ... +150 °C (-40 ... +302 °F)
• Measuring cell with Neobee oil (with front-flush
diaphragm)
-40 ... +150 °C (-40 ... +302 °F)
• Measuring cell with silicone oil, with tempera-
ture isolator (only with front-flush diaphragm)
-40 ... +200 °C (-40 ... +392 °F)
• Measuring cell with inert liquid -20 ... +100 °C (-4 ... +212 °F)
• Measuring cell with high temperature oil -10 ... +250 °C (14 ... +482 °F)
Design
Weight (without options) ≈ 1.5 kg (≈ 3.3 lb)
Housing material Poor in copper die-cast aluminium, GD-AlSi12 or stainless steel precision casting, mat. No. 1.4408
Wetted parts materials Stainless steel, mat. No. 1.4404/316L
Measuring cell filling Silicone oil or inert filling liquid
SITRANS P, DS III series for gage and absolute pressure, with front-flush diaphragm
HART PROFIBUS PA or FOUNDATION Fieldbus
© Siemens AG 2008