Aplisens APRE-2000 ALW Smart Differential Pressure Transmitter is applicable to the measurement of differential pressure of gases, vapours and liquids. The active element is a piezoresistant silicon sensor separated from the medium by separating diaphragms and a specially selected type of manometric fluid.
The special design of the active sensing element ensures that it is able to withstand pressure surges and overloads of up to 250/320/413/700 bar. 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.
Aplisens APRE-2000 ALW Metrological Parameters
- Accuracy:
- ? ±0,075% of the calibrated range
- (? ±0,1% for range no. 10)
- Special version: ? ±0,05% of the calibrated range
- (? ±0,04% on request)
- Long term stability (for the nominal measuring range):
- ? accuracy for 3 years
- or ? 2 x accuracy for 5 years
- HS version: ? accuracy for 6 years
- or ? 2 x accuracy for 10 years
- Thermal error:
- < ±0,05% (FSO) / 10°C for ranges no. 1 – 9
- < ±0,08% (FSO) / 10°C for ranges no. 10
- max. ±0,25% (FSO) in the whole compensation range
- spec. version for ranges no 1-9:
- ? ±0,03% (FSO) / 10°C
- max. ±0,1% (FSO) in the whole compensation range
- Thermal compensation range: -25…80°C
- Zero shift error for static pressure:
- 0,01% (FSO) / 10 bar for ranges no. 3, 4, 5, 6, 7, 9
- 0,03% (FSO) / 10 bar for range no. 8
- 0,06% (FSO) / 10 bar for ranges no. 1, 2
- 0,01% (FSO) / 10 bar for ranges no. 2, 8 in HS version
- 0,02% (FSO) / 10 bar for range no. 10
Zeroing the transmitter in conditions of static pressure can eliminate this error.
- Response time:
- 16…480ms (programmable)
- Exd version: 150ms
- Additional electronic damping: 0…60 s
- Error due to supply voltage changes: 0,002% (FSO) / V
Electrical Parameters
- Power supply:
- 10…55 VDC / Exia: 10,5…30 VDC / Exd: 10,5…45 VDC
- SIL2: 15…45 VDC / SIL2 Exia: 16…28 VDC
- Output signal: 4…20 mA + HART
- Load resistance (for standard version): R[?] Usup[V] – 10V / 0,0225A
- Resistance required for communication: min. 240 W
Materials
- Wetted parts: SS316L, Hastelloy C276
- Diaphragms: SS316L, Hastelloy C 276, Au
- Casing
- Aluminium
- Option: SS316
- Material of window: polycarbonate glass, hardened glass
Download Datasheet: Aplisens Smart differential pressure transmitter APRE-2000 ALW
Reference: aplisens.com
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