SITRANS P, DS III series (7MF4.33.. 7MF4.34.. 7MF4.35..)
42 A5E03434631-02, 12/2012
Rated conditions for absolute pressure (from the differential pressure series), differential pressure and flow rate
Measuring cell with inert liquid
filling
-20 … +100 °C (-4 … +212 °F)
● Measuring cell
30 bar (435 psi)
● -40 … +85 °C (-40 … +185 °F)
● With flow: -20 … +85 °C (-4 … +185 °F)
In conjunction with dust
explosion protection
-20 … +60°C (-4 … +140°F)
Rated conditions for level
Installation conditions
● Installation instruction
specified through the flange
Ambient conditions
● Ambient temperature
Note Observe the allocation of the max. permissible operating temperature to the max.
permissible operating pressure of the relevant flange connection.
Measuring cell with silicon oil
filling
-40 … +85 °C (-40 … +185 °F)
Display -30 … +85 °C (-22 … +185 °F)
Storage temperature -50 … +85 °C (-58 … +185 °F)
● Climate class
Condensation Permitted
● Degree of protection in
accordance with EN 60529
IP65
● Degree of protection in
accordance with NEMA 250
NEMA 4X
● Electromagnetic compatibility
Emitted interference and
interference immunity
In accordance with EN 61326 and NAMUR NE 21
Medium conditions
● Process temperature
Measuring cell with silicon oil
filling
● Plus side: see the mounting flange
● Minus side: -40 … +100°C (-40 … +212°F)
7.3 Construction
Construction for gauge pressure and absolute pressure (from the gauge pressure series)
Weight Approx. 1.5 kg (3.3 lb) for aluminum enclosure
Material
● Wetted parts materials
Process connection Stainless steel, mat. no. 1.4404/316L or Hastelloy C4, mat. no. 2.4610
Oval flange Stainless steel, mat. no. 1.4404/316L
Seal diaphragm Stainless steel, material no. 1.4404/316L or Hastelloy C276, material no. 2.4819
● Non-wetted parts materials
Electronics housing
● Non-copper aluminum die casting GD-AlSi 12 or stainless steel precision
casting, mat. no. 1.4408
● Standard: Polyester-based paint
Option: 2 coats: Coat 1: epoxy-based; coat 2: polyurethane
● Stainless steel nameplate
Mounting bracket Steel or stainless steel