Differential Transmitters

Provides for both visual monitoring and electronic control of very low differential pressure. The 605 Series is ideal for control applications in building HVAC/R systems where local indication is desired during routine maintenance checks or necessary when trouble shooting the system.

Combines very low ranges with exceptional stability, reliability and either ±0.25% or ±0.5% accuracy for the most demanding applications. Certification to NIST standards is included with each unit. Tough stainless steel housing is NEMA 2 rated to protect against moisture and dirt. Use with air and other compatible gases.

Senses the pressure of air and compatible gases and sends a standard 4-20 mA output signal. The housing is specifically designed to mount on a 35 mm DIN rail in a panel. Mounting style allows for several units to be mounted closely together reducing required space. The span and zero controls are for use when checking calibration.

Positive, negative and differential pressures can be measured within a full span accuracy of ±0.25. Units are enclosed in a polycarbonate case, rated NEMA 4X (IP66) and operate by sensing the pressure of air and compatible gases then sending a standard 4-20 mA output signal. Design enables operation in 2-wire current loops

Senses very low pressures of air and non-combustible, compatible gases and sends a standard 4-20 mA output signal. Positive, negative and differential pressures can be measured within a full span accuracy of ±0.50%. This weatherproof unit is enclosed in a polycarbonate case, designed to meet (IP66/NEMA 4X).

Can be used for measuring pressures of liquids, gases & vapors. All available ranges have 0.5% F.S. accuracy with a 4-20 mA Output standard or optional 1-5 VDC output. The NEMA 4 housing is an all 316 welded construction that is designed to withstand the harshest environmental conditions and is compatible with most media.

Designed for use with compatible gases and liquids which can be applied to both the pressure and reference ports. Quick response capacitance sensor delivers a 4 to 20 mA output signal proportional to differential pressure with ±.25% accuracy. For ease of installation and maintenance, order optional 3-valve manifold assembly.

Monitor differential pressure in air/liquid flow systems, HVAC/R automation, pneumatic systems and process control with the Series 647 Wet/Wet Differential Pressure Transmitter. Units are temperature compensated and provide a 4 to 20 mA output signal.

Capable of measuring low pressures with a ±1% accuracy - ideally suited for proper building pressurization and air flow control. Can withstand up to 10 psig overpressure with no damage to the unit. Variable capacitance sensor design provides excellent sensitivity and long-term stability. Units also feature reverse-polarity protection.

Provides a 4 to 20 mA process output, a robust NEMA 4X enclosure, plus a large LCD display that can be programmed to read in pressure, velocity or flow. Features security level, English or Metric engineering units, pressure, velocity or flow operation, K-factor, volumetric flow operation, plus many more.

Designed to measure pressures as low as 0.1 in w.c. with ±0.4% accuracy. The transmitter features 15 psid overpressure, reverse polarity protection and EMI/RFI protection. The NEMA 4 housing allows for versatile mounting locations and integral mounting tabs simplify installation.