Differential Pressure Transmitters

Ideal solution for automated air conditioning and ventilation applications, this pressure transmitter measures differential pressure from -100 to 100 Pa and features analog output/supply of 4 to 20 mA (4-wire, 24 V AC/DC). In addition, it ensures optimum system function, optimizes climate conditions, and saves energy.

The Testo 6351 pressure transmitter for differential pressure enables measurements in the 50 Pa to 2,000 hPa measuring range. A particularly outstanding feature of the transmitter is the automatic zero-point adjustment, which ensures high accuracy and long-term stability.

Testo 6381 differential pressure transmitter with calculation of flow velocity and optionally with humidity/temperature, accuracy ±0.5% of measuring range final value, automatic zero-point adjustment, selectable measuring range between 10 to 1000hPa, selectable signal outputs, optional display, output of all relevant pressure, flow and humidity paramters.

Testo 6383 differential pressure transmitter in cleanroom-conform panel design, optionally with humidity/temperature, accuracy ±0.3% of measuring range final value, automatic zero-point adjustment, selectable measuring range between 10 to 10hPa, selectable signal outputs, optional display, output of all relevant pressure and humidity parameters.

Microprocessor-based high performance transmitter, which has flexible pressure calibration, push button configuration, and is programmable using HART® Communication. The multiplanar design simplifies installation, saving you time and money during set up.

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.

With a single digital push button, both zero and span are calibrated properly, nothing else is required.

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

Monitors differential pressure of air and compatible gases and liquids with 0.5% accuracy. The design employs dual pressure sensors converting pressure changes into a standard 4 to 20 mA output signal or field selectable voltage.

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.

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.

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.

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.