Dwyer 645-12-3V Wet/Wet Differential Pressure Transmitter

Dwyer 645-12-3V is a Wet/Wet Differential Pressure Transmitter designed for a wide temperature range of operating: 0 to 175°F (-22 to 80°C) and storage: -65 to 260°F (-54 to 126°C). It offers an accuracy of ±0.25% FS (RSS) with a quick response time of 30 to 50 ms. The transmitter features a stainless steel/aluminum housing enclosure with NEMA 4X (IP56) rating, and electrical connections are made through a barrier strip terminal block with a conduit enclosure and .875" (22 mm) diameter conduit opening. The output signal is 4 to 20 mA, 2-wire, and zero and span adjustments are adjustable, ±1 mA, non-interactive. It is compatible with gases or liquids on both pressure and reference sides and the wetted materials include 17-4 PH stainless steel, 300 series stainless steel, fluoroelastomer, silicone O-rings, and bleed screw seals. The pressure limit is determined by the specific PSI range. It has a 1/4"-18 female NPT process connection and thermal effect (including zero and span) is ±0.02% FS/°F, 30 to 150°F (-1 to 65°C). The transmitter has a loop resistance ranging from 0 to 1000Ω and is equipped with a 90° on/off valve and brass manifold.

Specifications
Component	Differential Pressure Transmitter
Manufacturer	Dwyer
(Instrument-Sensor) Measurement Accuracy	0.25%
(Instrument-Sensor) Application	Liquid
(Instrument-Sensor) Application	Gas
(Instrument-Sensor) Type	Wet/Wet Differential
(Instrument-Sensor) Temperature Range	Operating: 0 - 175°F/-22 - 80°C
(Instrument-Sensor) Temperature Range	Storage: -65 - 260°F/-54 - 126°C
(Instrument-Sensor) Supply Voltage	11-30 VDC