Siemens SITRANS P Manual de usuario descargar pdf (Pagina 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

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

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Siemens SITRANS P Manual de usuario Pagina 80

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