CẢM BIẾN ÁP SUẤT DẠNG CHÊNH ÁP APLISENS MODEL APR-2000 ALW

Application and construction

Smart pressure transmitters are applicable to the measurement of the pressure, underpressure and absolute pressure of gases, vapours and liquids. The active sensing element is a piezoresistant silicon sensor separated from the medium by a diaphragm and by specially selected type of manometric liquid. The casing is made of aluminium alloy cast or 316SS stainles steel, degree of protection IP66/IP67. The design of the casing enables the use of a local display, rotation of the display, rotation of the casing by 0–340° relative to the sensor, and a choice of cable direction.

Technical data

Metrological parameters

Accuracy Ł ±0,075% of the calibrated range

(Ł ±0,1% for range no. 19)

Special version: Ł ±0,05% of the calibrated range

(Ł ±0,04%, Ł ±0,025% on request)

Long-term stability Ł accuracy for 3 years

(for the nominal measuring range) or Ł 2 x accuracy for 5 years

HS version (ranges 3÷15): Ł accuracy for 6 years

or Ł 2 x accuracy for 10 years

Thermal error < ±0,05% (FSO) / 10°C

(0,1% for ranges no. 16÷19)

max. ±0.25% (FSO) in the whole compensation range

(0,4% for ranges no. 16÷19)

Thermal compensation range -25...80°C

Special version: -40...80°C

Additional electronic damping 0...60 s

Error due to supply voltage changes 0,002% (FSO) / V

Electrical parameters: Please see datasheet

Output signal 4...20 mA + HART

Resistance required for communication min. 240 W