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Pressure level transmitter 712

Pressure level transmitter 712
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Pressure level transmitter Level sensing relative and absolute pressure transmitter Type 712 The level sensing pressure transmitter Type 712 is manufactured using an relative or absolute pressure measuring cell with an adjusted and amplified sensor signal and is available with various cable lengths from 2 to 30 meters. The Type 712 offers Ex protection as well as versions with integrated temperature measurement. In addition to voltage and current outputs the Type 712 is available with ratiometric outputs. + suitable for drinking water + intrinsically safe execution with voltage- and current output + suitable for fitting in 1-inch pipe + with integrated temperature measurement Huba Control Type 712 | Technical data subject to change | Edition 02/2021

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Technical overview Pressure range Relative Absolute Operating conditions Medium Medium and ambient 2) Temperature Storage Overload Fuel oil, ultra-light 1) SN 181 160-2 Fuel oil, heavy 1) SN 181 160-2 1) Diesel oil 1) Benzine Drinking water (with EPDM O-ring) -20 ... +80 ºC -40 ... +80 ºC 3x fs; max. 3 bar at 0.3 bar version Materials in contact with medium Case Sensor Cable Protection cover Sealing material Stainless steel 1.4404 / AISI 316L Ceramic Al2O3 PE-HD PPE, PA6 FPM, EPDM (for drinking water) Electrical overview Output Power supply Load 2 wire 4 ... 20 mA 10 ... 30 VDC < Power...

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Order code selection table Absolute 8 Relative 9 Pressure mode Absolute with higher accuracy C 1,2 Relative with higher accuracy D 1,2 Pmax. 0.0 ... 0.3 bar relative pressure 4.5 bar 9 1 3 0.0 ... 1.0 bar relative pressure 4.5 bar 9,D 1 1 0.0 ... 1.6 bar relative pressure 6.0 bar 9,D 1 2 0.0 ... 2.5 bar relative pressure 9.0 bar 9,D 1 4 Max measurable level (for water depending on the locations weather) Pressure range 1) 0.8 ... 1.4 bar absolute pressure 4.5 bar 3.5 ... 6.7 mWs 8 1 1 0.8 ... 2.0 bar absolute pressure 6.0 bar 9.6 ... 12.8 mWs 8,C 1 2 0.8 ... 3.0 bar absolute pressure 9.0 bar...

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Order number Cable hanger Connection box Test adapter Protection cover (pack of 10) Humidity protection element (pack of 10) Additional weight Calibration certificate (1) Mounting hole (2) Vent valve (A) Measuring value process (B) Vent pipe (C) to the transmitter Additional weight Test adapter Cable hanger hot-dip galvanized steel – PA6 glass fibre reinforced 1) Inside thread Iso 228/1-G ¼ A Ø 23,4 Ø 23,4 Huba Control Type 712 | Technical data subject to change | Ed

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Calculation of level General level with relative pressure sensor: General level with absolute pressure sensor: which and Using a second level sensor as barometric air pressure sensor For level sensor with current output use nominal signal values for ITS ... instead of variables UTS ... (resp. IBaro ... instead of UBaro ...) Simplification of formula for level sensor with ratiometric output: Using a second level sensor as barometric air pressure sensor Legend: h level [m] ρ g ∆p measured relative pressure [Pa] PTS measured pressure of level sensor [Pa] UTS PBARO measured pressure of...

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Huba Control AG Headquarters Schweiz Industriestrasse 17 CH-5436 Würenlos Telefon Niederlassung Deutschland Vestiging Nederland Succursale France Branch Office United Kingdom Unit 13 Berkshire House, County Park Technopôle Forbach-Sud Business Centre, Shrivenham Road

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