Flush-Mounted Pressure Transmitter TCS Type Hengesbach

The ceramic-sensor-based, flush-mounted pressure transmitters with metal membrane – Type TCS – for relative and
absolute pressure with various sensor elements are available with manometer connection or flush-mounted membrane. This connecting concept allows highly overload-resistant pressure measurements and provides high operating safety for industrial process pressure and level measurements.

The devices are cast into stainless steel standard housings and are available according to protection types from IP65
onwards. High-temperature versions for continuous operation at up to 200 ºC are available. Vacuum-resistance guaranteed. Installation into pipes with small nominal diameters is easily possible, due to the compact design.
Appropriate welding sockets and process adaptors can be ordered. The two process connection variants are G ½ or M22x1.5 with a threaded connection. In addition to the standard housing, a field housing design can be selected.


  • high overload safety for flush mounted applications with o-ring seal
  • measuring ranges from 0...2 bar to 0...400 bar for relative and absolute pressure in standard design
  • high-temperature safe up to 200ºc continuous load
  • shock- and vibration-resistant
  • different process connection adaptors


ApplicationsAbsolute and relative pressure measurement in gases, vapours and liquids   
Measuring principleThe process pressure acts on the metallic separation membrane of the sensor and is transmitted to the resistance bridge via the filling liquid. The change in output voltage proportion to the pressure is measured.


Measuring ranges (depending on type of device)   Relative pressure   Absolute pressure  
   relative  ÜSI  relative ÜSI absolute ÜSI absoluteÜSI 
Nominal measuring ranges (bar) 2bar 5 100bar 250 2 bar 5 200 bar500 
ÜSI = Overload protection (bar) 2.5bar 8 200bar 500 5 bar 12 400 bar600 
   5bar 12 400bar 600 10 bar 25    
   10bar 25       20 bar 50    
   20bar 50       50 bar 120    
   50bar 120       100 bar 250    
Adjustable rangesMeasuring span  ± 20%             
  Zero point ± 20%             


Output signal4...20 mA, 2-wire circuit             
Working resistanceRb (2-wire) Us - 13 V  Us = supply voltage      
       0.02 A    Rb = working resistance   
Breakdown signaltypical 34 mA, max. 40 mA           

Measuring accuracy

Reference conditionsAccording to. EN 60751, Ta = 20°C         
Linearity≤ ± 0.4% of the set measuring range, limit point method according to DIN IEC 770  
Warm-up time1 s                  
Rise time≤ 10 ms (without attenuation)           
Long-term drift≤ 0.4% relative to the initial measuring range       
Temperature coefficient± 0.4% FS / 10 K for zero point, compensation range 0...70°C      
  ± 0.2% FS / 10 K for measuring range         
Effect of vibration1.5 mm (10...55 Hz)             
Installation positionVertical (above 4 bar no restrictions)         

Conditions for use

Medium temperature-40°C... + 125°C, 140°C max. for 1 h (type HT for temperatures up to 200°C)   
Environmental temperature-40°C... +85°C             
Storage temperature-40°C... +85°C             
Protective type acc. to EN 60529- IP 65  (with plug connection acc. to EN 175301-803)      
  0(with permanently attached reference cable or M12x1 plug)   
Electromagnetic compatibilityEMC directives according to EN 50081-2 / 50082-2 are fulfilled,CE-sign   

Design configuration

TypeVA rod housing and process connections, flush-mounted      
Material- Standard housing made of 1.4301         
  - Process connections made of 1.4404         
Electrical connection-Standard: Plug connection acc. to EN 175301-803      
  -  optional:  Permanently connected reference cable, length 1 m   
  -optional:Round plug M12 x 1         
Filling liquidSilicon oil (suitable for food products, FDA), white oil (FDA)      

Auxiliary energy

Supply voltage13...30 DC, max. permissible residual ripple 1 Vss       
Supply voltage effect≤±0.03%                 

Download Data Sheet
: Flush-Mounted Pressure Transmitter TCS Type

Ref: Hengesbach.com