Smart Differential Pressure Transmitter – Aplisens APR-2000ALW Series

Features

  • 4…20 mA, 0…20 mA or 0…5 mA output signal + HART protocol
  • Display with backlight
  • SIL 2 certificate
  • Intrinsic safety certificate (ATEX, IECEx)
  • Explosion proof certificate (ATEX, IECEx)
  • PED Conformity (97/23/EC)
  • Programmable zero range, shift, characteristic and damping ratio with local panel keys
  • Static pressure limit up to 420bar
  • Accuracy 0,075% (0,05% on request)
  • Marine certificate – DNV, BV
  • Gold plated diaphragms
  • Wetted parts material Hastelloy C276
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The APR-2000ALW 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.

The data interchange with the transmitter enables users to:

  • identify the transmitter
  • configure the output parameters:
    – measurement units and the values of the start points and end points at the measurement range
    – damping time constant
    – conversion characteristic (inversion, user’s non-linear characteristic)
  • read the currently measured pressure value of the output current and the percentage output control level
  • force an output current with a set value
  • calibrate the transmitter in relation to a model pressure

Specification

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
Resistance required for communication min. 240 Ω
Materials
Wetted parts SS316L, Hastelloy C276
Diaphragms SS316L, Hastelloy C 276, Au
Casing Aluminium
Option: SS316
Material of window: polycarbonate glass, hardened glass
Operating conditions
Operating temperature range (ambient temp.) -25…85°C
special version -40..85°C
Exia version -25…80°C
Exd version -25…75°C
Medium temperature range  -25…120°C
over 120°C measurement with use an impulse line or diaphragm seals
up to 100°C PED version
up to 100°C version for 413bar static pressure
up to 80°C version for 700bar static pressure
CAUTION: the medium must not be allowed to freeze in the impulse line or close to the process connection of the transmitter

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Aplisens APR-2000 ALW Smart differential pressure transmitter-DpstarGroup

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