Siemens 7MF8.24 Series - Conditions of Use

SITRANS P300 (7MF8.23.. 7MF8.24.. 7MF8.25..)
A5E03434759-01, 08/2011
27
Conditions of use
Conditions of use
Installation conditions
Ambient temperature
Note Observe the temperature class in areas subject to explosion
hazard.
Measuring cell with silicone oil -40 … +85 °C (-40 … +185 °F)
Measuring cell with inert liquid (not with flush-mounted
diaphragm)
1)
-20 … +85 °C (-4 … +185 °F)
Measuring cell with Neobee oil (FDA-compliant, flush-
mounted diaphragm)
1)
-10 ... +85 °C (14 ... 185 °F)
Display -30 … +85 °C (-22 … +185 °F)
Storage temperature -50 … +85 °C (-58 … +185 °F)
(for Neobee: -20 ... + 85 °C (-4 ... +185 °F))
(for high-temperature oil: -50 ... +85 °C (-58 ... +185 °F))
● Climate class
Condensation Permitted
● Degree of protection in accordance with EN 60 529
IP65, IP68, enclosure cleaning, resistant to alkalis, steam up
to 150° C
● Degree of protection in accordance with NEMA 250
NEMA 4X, enclosure cleaning, resistant to alkalis, steam up
to 150 °C
● Electromagnetic Compatibility
Emission and resistance to interference As per EN 61 326 and NAMUR NE 21
Medium conditions
● Process temperature
Measuring cell with silicone oil -40 … +100 °C (-40 … +212 °F)
Measuring cell with silicone oil (flush-mounted
diaphragm)
1)
-40 … +150 °C (-40 … +302 °F)
Measuring cell with Neobee oil (FDA-compliant, flush-
mounted diaphragm)
1)
-10 … +150 °C (14 … 302 °F)
Measuring cell with silicone oil and cooling extension
(flush-mounted diaphragm)
1)
-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)
1)
Observe the temperature limits in the process connection standards (e.g. DIN 32676 and DIN 11851) for the maximum
process medium temperature for flush-mounted process connections.
Construction
Design (standard version)
Weight (without options) Approx. 800 g (1.8 lb)
Enclosure material Stainless steel, mat. no. 1.4301/304
Wetted parts materials
● Connection pins
Stainless steel, mat. no. 1.4404/316L
Hastelloy C276, mat. No. 2.4819
● Oval flange
Stainless steel, mat. no. 1.4404/316L
● Seal diaphragm
Stainless steel, mat. no. 1.4404/316L
Hastelloy C276, mat. no. 2.4819