SMART DIFFERENTIAL PRESSURE TRANSMITTERS
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.
4…20 mA output signal + HART 5 / HART 7 protocol (special version: 0…20 mA or 0…5 mA output signal + HART 5 protocol)
Display with backlight
Safety version SIL2/SIL3
Intrinsic safety certificate ATEX, IECEx, FM, CSA(FM)
Explosion proof certificate ATEX, IECEx, FM, CSA(FM)
Programmable zero range, shift, characteristic and damping ratio with local panel keys
Static pressure limit up to 700bar
Accuracy 0,075% (0,05%, 0,04% on request)
Marine certificate – DNV, BV
Gold plated diaphragms
Wetted parts material 316L/Hastelloy C276
The APRE-2000 transmitter is applicable to the measurement of
differential pressure of gases, vapors 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 or 320 bar. Electronics in the casing with
a degree of protection IP65, IP66.
4…20 mA output signal + HART protocol
ATEX Intrinsic safety
Static pressure limit up to 320 bar
Accuracy 0.1%
Wetted parts material 316L
4…20 mA output signal + HART protocol
Intrinsic safety certificate (ATEX, IECEx)
Static pressure limit up to 420 bar
Accuracy 0,1%
Wetted parts material Hastelloy C276
Marine certificate DNV, BV
The transmitters PRE-28.Modbus have two operating modes, configuration mode and Modbus mode. The configuration mode
is used for changing settings and detailed diagnostics of the transmitter. In this mode you can also activate a current loop
compatible with a 4-20 mAcurrent output
Digital communication protocol Modbus RTU
Intrinsic safety and explosion proof certificates (ATEX, IECEx)
Accuracy 0.1%
Static pressure limit up to 413 bar
Marine certificate DNV, BV
Accuracy 0.4%
Measuring ranges: 0 ÷ 1, 0 ÷ 2.5, 0 ÷ 4 bar; 0 ÷ 6, 0 ÷ 10 bar; 0 ÷ 16, 0 ÷ 25 bar
Output signal 4 ÷ 20 mA or 0 ÷ 10 V
Process connection: M20x1,5, 1/4”NPTF
Smart or analog differential pressure transmitters with diaphragm seals for level measurement to pressure tank with gas-filled negative pressure line are recommended transmitters with diaphragm seal mounted on “+” side to pressure tank with liquid-filled negative line are recommended transmitters with diaphragm seal mounted on “-” side and converted output signal.
Smart differential pressure transmitter with two diaphragm seals model APR-2200ALW or APRE-2200
The differential pressure transmitter is applicable to the measurement of pressure differences of: gases, vapours and liquids in cases where it is necessary to use seals and the pressure pulse source points may be several metres apart. Typical applications include the hydrostatic measurement of: levels in closed tanks, densities and phase boundaries, and the measurement
of a filter loss, pressure differences between media in pasteurisers etc
4…20 mA output signal + HART 5 / HART 7 protocol
Accuracy 0,1%
Safety version SIL2/SIL3
Intrinsic safety certificate ATEX, IECEx, FM, CSA (FM)
Explosion proof certificate ATEX, IECEx, FM, CSA (FM)
Fully welded sensor guarantees tightness of oil system for many years
Ability to configure measuring range locally
Modular electronic differential pressure transmitter APM-2 is applicable to hydrostatic measure of level in closed
tanks, density or phase boundary. The measuring system consists of 3 separate modules – central unit and two absolute pressure transmitters. Level is calculated in central unit basing on measurement from two pressure transmitters.
Measurement of differential pressure based on two absolute pressure transmitters
Modular construction with posibility of replacing of each module of the measuring system
Output signal 4 ÷ 20 mA + HART
Accuracy 0,1%