Differential Pressure Transmitter, Deltabar S FMD78

Measuring ranges            : 100mbar to +40 bar

Accuracy                              : ±0.075%

Process temperature     : -70 up to +400°C (-94 to +752°F)

Process connections       : Threads, flanges, pancake and hygienic connections

Protection                           : IP66/67/68


Level, content or volume measurement in Pressurised Vessels or Vessels under Vacuum


Differential pressure transmitter for level applications

Pressure device for measuring differential pressure in industrial and non-industrial environments. The metallic sensor provides outstanding long-term stability and single-sided overpressure resistance. It can be supplied with a wide range of process connections and fill fluids


  • Level, content or volume measurement in pressurised vessels or vessels under vacuum
  • Differential pressure measurement of hazardous and harmful products
  • Long term stability < 0.05% per 5 years minimises recalibration
  • Integrated linearisation of vessels (horizontal or vertical)
  • HART, PROFIBUS and FOUNDATION Fieldbus compatible
  • Menu-guided display with plain text – no error codes to decipher • No software or handheld communicators required
  • Available with TempC membrane for improved accuracy and process safety in difficult pressure and DP applications

Technical data

Measuring range 100 mbar…40 bar/TD 100:1 (larger TD on request)
Process temp -70°C…400°C
Ambient temp -40°C…85°C
Protection IP66/67/68
Power supply 10.5…45V DC standard, 10.5…30V DC for EEx-i 9…32V DC for PA and FOUNDATION Fieldbus
Cable connection Gland M20x1.5, ½” NPT, 7/8” FOUNDATION Fieldbus connector, M12
Accuracy 0.075% (transmitter) + chemical seal and capillaries error
Housing Cast aluminium with polyester based coating, (stainless steel 316L optional)
Process connection All common process connections ANSI/DIN flanges, hygienic couplings e.g. Tri-Clamp etc.
Process membrane 1.4435 (316L), Alloy C276, Monel, Tantalum, TempC etc.
Capillary Armoured (316L) variable length up to 10 metres
Seal and capillary Silicon oil, vegetable oil (FDA), high temperature oil, Inert oil fillings

For more information, specific application advice or to order,

Please Contact us on +91 8367005552 or +91 9063008734

email: info@sigmaautomation.co.in or instsales@sigmaautomation.co.in

Technical Information for  Deltabar S FMD78

TI for  Deltabar S FMD78