Remote-sealed Differential Pressure Transmitters

CEFOUNDATION FieldbusHART

AT9000 Advanced Transmitter Remote-sealed Differential Pressure Transmitters (GTX**R series) are used to measure differential pressure (flow rate, fluid level, etc.) of high-temperature or highly corrosive, condensable fluids. We offer an extensive lineup including small bore flange models starting at 40 mm and models for high temperature (including high temperature high vacuum) applications.


Remote-sealed Differential Pressure Transmitters

Main specifications

Model GTX35R GTX40R
Measurement span 2.5 to 100 kPa 35 to 700 kPa
Setting range -100 to 100 kPa -100 to 700 kPa
Reference accuracy
(Varies by material and measurement span)
±0.2% ±0.2%
Fill fluid Silicone oil (for the following models: general purpose, high temperature, high temperature vacuum, and high temperature high vacuum)
Fluorine oil (oxygen and chlorine models)
Waterproof and dust-proof construction IEC IP66/IP67
Explosion-proof construction TIIS flameproof (Exd IICT4)
KOSHA flameproof
FM explosion proof, intrinsic safe and Nonincendive
ATEX/NEPSI/IECEx flameproof, intrinsic safe and Type n
INMETRO flameproof
Range of operating temperatures for liquid part
(Varies with pressure)
Silicone oil: -40 to 280 °C (varies with fill fluid)
Fluorine oil: -10 to 120 °C
Range of operating pressures for liquid part
(Varies with temperature)
Silicone oil for general purpose and high temperature models: from 2 kPa abs
High temperature vacuum and high temperature high vacuum models: from 0.13 kPa abs
Fluorine oil: from 53 kPa abs
Wetted material SUS316 (diaphragm SUS316L), Hastelloy C, Tantalum
Power 17.9 to 42V DC
Output signal 4 to 20 mA DC (SFN communication)
4 to 20 mA DC (HART® communication)
Flange bore Flush models: 80 mm, 50 mm, 40 mm. Protruding models: 100 mm, 80 mm, 50 mm
Safety certification Safety Integrity Level (SIL) 2 certification

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