Hengesbach Pressure and Level Transmitter TPF0505D Series

The TPF050D pressure transmitter is suitable for measuring of the pressure and filling level in pipes and tanks, even with small nominal diameters. Depending on the process connection, the flush-mounted measuring cell with stainless steel membrane enables measuring ranges of -1/0…0.35bar to -1/0…100bar. The robust stainless steel field housing and the checked protection classes IP 67 and IP 69K withstand all aggressive and residue-free cleaning procedures such as those required in the food and pharmaceuticals industry.

The 050D series pressure transmitters are equipped with a micro-processor controlled electronics system and an accuracy of ≤ ± 0.2% FS. They are parametrised with a simple and user-friendly operating concept via 2 keys and a multi-colour status LED. A TurnDown of up to 4 can be set using the full and empty adjustment. A wide range of hygienic and non-hygienic process connections is available for the TPF050D. The process connection adapters available include: ISO 228 G1“ screw-in threads with an elastomer-free sealing cone and press screw, conical couplings or DIN 11851, VARIVENT® with Ø 50mm or Ø 68mm, DRD. Customer-specific solutions are also possible.


  • output signal 4...20mA, TURNDOWN 4
  • accuracy ≤ ± 0,2%FS
  • simple calibration, even without disconnection of the transmitter, through switchable power supply plant / calibrator supply
  • with hygienic and standard process connections as a fixed connection
  • simple parametering via 2-key concept and multi-colour status-LED
  • vacuum and overload safe
  • for measurement of pressure and filling level in tanks and pipes with basic requierments
  • easy to clean and high protection classes IP 67 und IP 69K


General details            
Device type/measuring principleTPF050D: piezoresistive       


Measuring ranges      TPF050D   
Standard nominal measuring range [bar] RelativeOPAbsoluteOP RelativeOPAbsoluteOP
OP = overload protection [bar]0 to 0.351    -1/0 to 10300 to 1030
Special measuring ranges are available on request. 0 to 130 to 13 -1/0 to 30900 to 3090
-1/0 to 2.580 to 2.58 -1/0 to 1002500 to 100250
 -1/0 to 5150 to 515     
All measurement cells are vacuum safe      
Setting the measuring rangesvia the 2 keys within the transmitter      
Setting rangesMeasuring range beginzero:0 to 75%of the sensor's nominal measuring spanTD=4
 Measuring spanspan:25 to 100%of the sensor's nominal measuring span 
Burst pressure DIN16086>= 4-fold nominal measuring range      


Output signal2-wire:   4 to 20mA with a test circuit connection in the device   
Fault signal22mA         
Current limitation3.8mA and 21mA (normal operation, cannot be set)   
Measuring accuracy            
Reference conditionsacc. to DIN IEC 770        
Linearity, hysteresis and repeatability acc. to the limit point method DIN IEC 770≤ ± 0.2% of the sensor nominal measuring range   
Activation time< 2 s (The device will carry out a self-test.)     
Setting time< 1s          
Long-time drift≤ 0.2% of the span per year       
Thermal hysteresis0.2% of the sensor's nominal measuring range / 10K (-20 to +80°C) from 4 bar 
 0.3% of the sensor's nominal measuring range / 10K (-20 to +80°C) up to 0.6 bar 

Conditions of use

Installation position / calibration positionAny position / standing vertically       
Medium temperatureT1:-40 °C to +125 °C (140 °C for max. an hour)   
 T2:-40...+200°C (high-temperature version)     
Ambient storage temperature-40...+85°C (below -20 °C danger of cable breakage)   
Protection class acc. to EN60529IP 67 and IP 69K        
Electromagnetic compatibilityacc.to EN 61326-1        


Electrical connection- Standard:M16x1.5 cable screw connection, nickel-plated brass (stainless steel available on request)
- Optional:  M12x1 round plug-in connector, nickel-plated brass (stainless steel available on request)     
- Optional:  angle plug acc. to EN 175301-803         
- Optional:  reference cable           
Process connection- All standard flush-mounted process connections and those commonly used by the manufacturer           
 - Membrane, flush-welded on the front, CrNiSt, other materials available on request           


Materials- Field housing / lid:CrNiSt 1.4301 (304)          
 - Electronics cast:Silgel          
 - Housing seal:FPM (Viton®)          
 - Pressure compensation element:Polyamide          
 - Process connection / connection adapter:CrNiSt 1.4404 (304)          
 - Process membrane:CrNiSt 1.4435/1.4404 (316L)          
 - Reference cable, 5-wire with reference tube:PUR (recommended: 80 m maximum)          
Filling fluidSilicon oil (FDA)           

Display and operation

DisplayMultiple-colour status LED           
Operation2-key concept           

Auxiliary energy resources

Power supply / burden12...30V DC, max. burden: (Vsupply – 12V) / 22mA          

Accessories 050D

CertificatesCalibration certificate           
 Declaration of conformity           
 Material certificate acc. to EN 10204           

Download Data Sheet: Pressure and Level Transmitter TPF0505D Series

Ref: Hengesbach.com