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  5. APR3800 Protran® Standard Pressure Transducer

APR3800 Protran® Standard Pressure Transducer

Flush Diaphragm Pressure Transmitter


Key features

  • Easy clean flush membrane to prevent clogging
  • Thick film sensor technology for long service life
  • Pressure ranges to 40 bar
  • Range of sanitary grade pressure fittings
  • ATEX/IECEx option available (includes M1 for mining applications)

About the APR3800 Pressure Transmitter

The APR3800 series offer a range pressure transmitters with integrated or remote barrier seals for applications where direct media contact must be prevented. Robustly constructed from stainless steel, this range of pressure trans-mitters incorporates the latest strain gauge technology together with a custom IC amplifier offering excellent stability and accuracy over a long service life. The range offers a stable and accurate output signal of 4-20 mA with options for 0-5 V and 0-10 V.

Typical applications include food processing, pharmaceutical, petrochemi-cal, waste water and slurry handling. In these installations the process media may corrode the sensing diaphragm or clog the narrow pressure inlet on a standard transmitter. The flush membrane can be easily cleaned for long term reliability and outstanding performance. For hygienic applications the APR3800 series provides a sanitary grade pressure fitting. Seals are available in a variety of forms and materials for a wide range of applications and can be directly attached to the proposed connection or remotely via stainless steel capillary. Pressure ranges available from 0-200 mbar to 0-40 bar.

An optional ATEX and IECEx approved versions of this range are available for explosion protection for flammable gases (zone 0), dusts (zone 20) and mining areas (group I M1).

Key Features

  • Easy clean flush membrane to prevent clogging
  • Thick film sensor technology for long service life
  • Pressure ranges to 40 bar
  • Range of sanitary grade pressure fittings
  • ATEX/IECEx option available (includes M1 for mining applications)

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Technical Specifications

Specification Value
Accuracy nlhr ≤ ±0.3 % of span BFSL
Atex/icex approval option (4-20ma version only) Ex II 1 G Ex ia IIC T4 Ga (zone 0) Ex II 1 D Ex ia IIIC T135 °C Da (zone 20) Ex I M 1 Ex ia I Ma (group 1 M1)
Insulation resistance > 100 MΩ @ 50 VDC
Operating media temperature -20 °C to +85 °C (-4 °F to +185 °F)
Output signal 4 - 20 mA (2 wire)
Overpressure safety: 1.5x for all ranges
Pressure reference Gauge
Protection of supply voltage Protected against supply voltage reversal up to 50 V
Sensor technology Ceramic Thick Film or Isolated Piezoresistive Silicon
Standard pressure ranges (bar) 0-1 bar Vac; 0-200mbar, 0-1 bar; 0-2.5 bar; 0-6 bar; 0-10 bar; 0-16 bar; 0-25 bar; 0-40 bar (other options available)ar, 0-900 mbar (other ranges available)
Supply voltage 13 - 36 VDC