Smart differential pressure transmitters APR-2000 ALW, APRE-2000, PRE-28 SMART, differential pressure transmitters PRE-28.MODBUS, PRE-28, AS-dP and others
Country: · Model: APR-2000 ALW, APRE-2000, PRE-28 SMART, PRE-28.MODBUS, PRE-28, AS-dP
This family covers the smart differential pressure transmitters APR-2000 ALW, APRE-2000 and PRE-28 SMART, plus the PRE-28, PRE-28.MODBUS and AS-dP versions. They read the pressure drop across a flow element or a filter and turn it into an output signal. One line spans a simple analog device, a smart one with a digital module and a version with a Modbus interface.
Technical specifications
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The pressure difference is picked up by a sensor with two process ports, so the same transmitter can serve flow, level in a closed tank or filter fouling. The smart versions are configured digitally, which covers range, damping and zero without a pressure source on the bench. PRE-28.MODBUS adds a Modbus output and fits straight into a PLC or gateway network without an analog loop. The plain PRE-28 and AS-dP suit fixed ranges. Some bodies are made for flange mounting, others are compact with two process connections side by side. A part of the range carries Ex and IECEx marks.
How to choose
The first choice is the signal. Take PRE-28.MODBUS if the data go to a digital bus, APR-2000 ALW or APRE-2000 if you need a local display and remote setup, and PRE-28 or AS-dP if a fixed analog device is enough. The second choice is the body, flange or compact. If the medium is aggressive or hot and must stay away from the sensor, look at the transmitters with diaphragm seals in the same line, and for very small spans at the low-range ones.
Request a price and lead time
Smart differential pressure transmitters APR-2000 ALW, APRE-2000, PRE-28 SMART, differential pressure transmitters PRE-28.MODBUS, PRE-28, AS-dP and others. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is PRE-28.MODBUS?
It is a PRE-28 differential pressure transmitter with a Modbus output. The reading goes over a digital line, so no analog converter is needed at the controller.
Where is a differential pressure transmitter used?
On orifice plates and Venturi tubes for flow, across filters for fouling control and on closed tanks for level. The device always reads the difference between two pressures.
What is the difference between APR-2000 ALW and PRE-28?
APR-2000 ALW is a smart device with a digital electronics module and remote configuration. PRE-28 is the simpler version with a fixed setting.
Can a smart transmitter be re-ranged without a pressure source?
Yes, the range and damping of a smart version are changed digitally through the configurator. Verification against a reference is still done when the plant procedure requires it.
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