Smart Differential Pressure Transmitter For Low Ranges – Aplisens APR-2000GALW Series


  • 4…20 mA output signal + HART protocol
  • Display with backlight
  • Programmable range, zero shift, damping ratio and characteristic with local panel keys
  • Selectable linear or radical conversion characteristic
  • Accuracy from 0,1%
  • Intrinsic safety certificate (ATEX, IECEx)

The APR-2000GALW transmitter is applicable to the measurement of differential pressure of gases. Typical applications include the measurement of blast pressure, chimney draughts or pressure / underpressure in furnace chambers. The ability to select the radical conversion characteristics enables the transmitter to be used in gas-flow measurement systems using reducing pipes or other impeding elements. The transmitter can withstand overpressure up to 1 bar. The housing of the electronic circuit has the degree of protection IP66/IP67.


Meterological parameters
Nominal range 0…25 mbar -2,5…2,5 mbar -7…7 mbar -25…25 mbar -100…100 mbar
Accuracy ≤ ±0,075% ≤ ±0,25% ≤ ±0,1% ≤ ±0,1% ≤ ±0,075%
Thermal error < ±0,1% (FSO) / 10°C
max. ±0,4% (FSO) in the whole compensation range
Thermal compensation range -10…70°C
Additional electronic damping 0…30 s
Error due to supply voltage changes 0,002% (FSO) / V
Electrical parameters
Power supply 10…55 VDC (Exia 10,5…30 VDC)
Output signal 4…20 mA + HART
Resistance required for communication min. 240 Ω
Operating conditions
Operating temperature range (ambient temp.) -30…85°C
Casing Aluminium
option: 316ss
adapter C type, 304ss
adapter PCV type (on Ø6 elastic pipe) brass


Aplisens APR-2000GALW Smart differential pressure transmitter for low ranges-DpstarGroup