Differential Pressure
pressure measurement relative to the surrounding atmospheric pressure.
See Also: Pressure, Absolute Pressure
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Differential Pressure Gauges
Differential pressure gauge is an economical means for measuring pressure between two independent pressure sources. Used on process monitoring or control, the unit's system design permits a small volume of media migration; intended for air, hydraulic oil and non-corrosive applications. A good choice for satisfying challenging pressure requirements.
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Differential Pressure Transmitter
608
The Dwyer Series 608 Differential Pressure Transmitters convert positive, negative (vacuum), or differential pressures of clean, dry air or other non-conductive, non-corrosive gases into a standard two wire, 4-20 mA output signal
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Cabin Altitude Differential Pressure
The inner scale displays the difference in pressure between the inside and the outside of the cabin in pounds per square inch (PSI).
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Minihelic II Differential Pressure Gages
2-5000
Combining clean design, small size and low cost with enough accuracy for all but the most demanding applications our Minihelic II gage offers the latest in design features for a dial type differential pressure gage. It is our most compact gage but is easy to read and can safely operate at total pressures up to 30 psig.
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Low Differential Pressure Switch
1900
Our most popular series combines advanced design and precision construction to make these switches able to perform many of the tasks of larger, costlier units. Designed for air conditioning service, they also serve many fluidics, refrigeration, oven and dryer applications
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Differential Pressure Transmitter
DPA Series
Adtek has multiple transmitters which can be applied on different types of work environment. To have a better quality of life, buildings with central centilation system (CVS) become a trend, so we recently developed a new product, DPA, indoor differential pressure transmitter. The users can set up the measured range according to the actual use, and make zero adjustment for the differential pressure. Besides being equipped with regular analog outputs, we also added RS-485 output to DPA which is a simple and low cost communication tool connecting with monitoring system.
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Differential Pressure Transmitter
DPW
•Wide range power supply•Measure by diffusion silicon sensor , advanced membrane isolation•Connection reverse protect ,OVP、OCP•Design for anti-interfere, anti-lightning strike•Compact and easy to install•2mS response time ,high accuracy ,high stability
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Manometer for Differential Pressure
MANO2-A
An instrument for measuring the pressure acting on a column of fluid, especially one with a U-shaped tube of liquid in which a difference in the pressures acting in the two arms of the tube causes the liquid to reach different heights in the two arms.
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Differential Pressure Transmitter
DST1100
Measuring resolution high to 1Pa, best accuracy of 1.5%FS3Pa Customized differential pressure measuring range between -1000 and 1000Pa Support on-line linear calibration and zero setting Optional analog signal and digital signal Digital calibration technology, on-line calibration supported Toxicity and halogen free material, complying with different GXP standard
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Wet/Wet Differential Pressure Transmitter
645
Series 645 Wet/Wet Differential Pressure Transmitters are 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.
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Differential Pressure Instruments
The testo 512 differential pressure meter is available as four models. This model has a measuring range from 0.0.29 psi and is ideal for measuring pressure differences at filters and for carrying out pitot static tube measurements in air ducts at air flow speeds between 16 and 180 fps.
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Data logger for Temperature Humidity and Differential Pressure
DSR-THDP
Simultaneously measures and logs temperature, humidity and differential pressure Support on-line linear calibration and zero setting Customized differential pressure measuring range between 0 and 1000Pa Suitable for pharmaceutical workshops, electronic production, precision machinery and other applications
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Differential Pressure Switches
P845
The Whitman Controls P845 Differential Pressure Switches are rugged and versatile, with excellent by-pass characteristics and the ability to handle a wide variety of media to 6,000 PSIG and set point ranges to 250 PSID. These switches are NEMA 4 rated and can tolerate submersion. They are commonly used across oil and water filter heads to detect when a filter element needs changing. It may be mounted in any orientation and is capable of carrying light to moderate mechanical shock and vibratory loads.
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Differential Pressure Meters, Micromanometers
Unprecedented differential pressure measurement accuracy (yet a wide range) for critical pollutant pathway monitoring, ventilation assessment, filter performance testing, general HVAC measurement and many other applications. GrayWolf AdvancedSense meters include auto-ranging dual DP sensors, as well as auto-zeroing (to maintain low-end precision). GrayWolf DP instruments offer broad measurement ranges, yet exceptional sensitivity. They may be utilized for spot checks and for long-term trending of a variety of pressure measurement applications that require high reliability. Choose from the cutting edge AdvancedSense Pro, AdvancedSense BE or the new Zephyr III Meter (which replaces the workhorse “classical” Zephyr II in July 2020).
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Magnehelic Differential Pressure Gage
2000
Select the Magnehelic gage for high accuracy--guaranteed within 2% of full scale--and for the wide choice of 81 models available to suit your needs precisely. Using Dwyer's simple, frictionless Magnehelic gage movement, it quickly indicates low air or non-corrosive gas pressures--either positive, negative (vacuum) or differential
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Differential Pressure Transmitter
616D
The Series 616D Differential Pressure Transmitter senses the pressure of air and compatible gases and sends a standard 4-20 mA output signal. The 616D housing is specifically designed to mount on a 35 mm DIN rail in a panel
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Wet-Wet Differential Pressure Sensor
DP303
The DP303 features "take-apart" construction enabling the user to easily disassemble the unit for cleaning or to change full scale range by exchanging the sensing diaphragm. As noted from the Pressure Range/Diaphragm Selection Chart on the reverse side of this Data Sheet, a family of interchangeable diaphragms are available to cover virtually any full scale pressure range from 0.08 psid full scale to 5,000 psid full scale-all rated for operation at 5,000 psig line pressure!
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Differential Pressure Flowmeters
From simple orifice plates through to custom-engineered metering systems, ABB's differential pressure (DP) flowmeters measure a variety of fluids including water, air, steam, heavy oil, slurries and molten sulfur.
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Differential Pressure Transmitter
616W
Positive, negative and differential pressures can be measured within a full span accuracy of ±0.25 with the Series 616W Differential Pressure Transmitter. 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.
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AD06A Baratron® Differential Pressure Sensor
AD06A Baratron® differential pressure sensors are single-ended dual-electrode/AC bridge devices that are extremely stable and designed to minimize the effect of temperature changes. Full Scale ranges are available from 25,000 Torr down to 0.1 Torr. Each range measures down to 1 part in 106 Full Scale with selected percent Reading accuracy limited by this resolution and with accuracies ranging from 0.25% to 0.05% of Reading. They are constructed of Inconel® and stainless steel, allowing use with many wet, dirty, or corrosive gases.
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Gas Differential Pressure Switch
A4
Rugged Series A4 Differential Pressure Switch offers field adjustments and can handle system pressures up to 6000 psig. Piston design allows mounting in any orientation. The switch is capable of carrying moderate shock and vibratory loads
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Compact Differential Pressure Transmitters
Series 668B/D
Our low cost SERIES 668B/D Compact Differential Pressure Transmitters are capable of sensing differential gage pressure with ±0.8% FS accuracy, and converts this pressure difference to a proportional high level analog output for both unidirectional and bi-directional pressure ranges. These transmitters can withstand up to 15 psig overpressure with no damage to the unit. The compact, lightweight design makes installation simple and easy. Units are protected against incorrect wiring, and include a protective terminal cover.
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Low Range Low Cost OEM Differential Pressure Transducer
P17
The P17 OEM Low Range Low Cost pressure transducer features high sensitivity to very low pressures with full scales available down to 0.1 In H2O. Output signal is 5 Vdc and power can be +5 to +28 Vdc. Zero and Span adjustments are included. The P17 has a robust steel sensor construction.
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Relative and Differential Pressure Transmitters
HD408T… / HD4V8T… Series
HD408T, HD4V8T are analog output relative or differential atmospheric pressure transmitters; they are used in all those applications where non corrosive air or gas need to be monitored, with pressure fields from 10 mbar to 2000 mbar.
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Differential Pressure Transmitter
668
Our low cost Series 668 Differential Pressure Transmitter is capable of measuring low pressures with a ±1% accuracy - ideally suited for proper building pressurization and air flow control. Transmitters can withstand up to 10 psig overpressure with no damage to the unit. Variable capacitance sensor design provides excellent sensitivity and long-term stability.
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Explosion-Proof Differential Pressure Switch
1950G
The Model 1950G Explosion-Proof Switch combines the best features of the popular Dwyer Series 1950 Pressure Switch with the benefit of natural gas compatibility. Units are rain-tight for outdoor installations, and are UL listed for use in Class I, Groups A, B, C, & D; Class II, Groups E, F, & G and Class III atmospheres, ATEX for EExd IIB & Hydrogen T6, and CSA & FM approved for Class I, Div. 1, Groups B, C, D; Class II, Div. 1, Groups E, F, G and Class III atmospheres
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Flow And Differential Pressure Sensors
ACEINNA’s flow and differential pressure sensors are designed to serve the need for mass flow and pressure sensing in multiple applications such as gas meters, process control, HVAC, medical, chemical, food and beverage, etc. We offer two newly launched and announced product lines, the MFC2000 family of gas flow modules and the MDP200 differential pressure sensor.
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Digihelic Differential Pressure Controller
DH
The Series DH Digihelic Differential Pressure Controller is a 3 in 1 instrument possessing a digital display gage, control relay switches, and a transmitter with current output. Combining these 3 features allows the reduction of several instruments with one product, saving inventory, installation time and money.
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Indicating Differential Pressure Transmitter
605
The Series 605 Magnehelic Indicating Transmitter provides for both visual monitoring and electronic control of very low differential pressure.
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Differential Pressure and Temperature Data Logger
PRTemp1000D
The PRTemp1000D is a rugged pressure and temperature data logger designed to accurately monitor and record pressure and temperature at user programmable reading intervals. The rugged stainless steel design allows for the device to be placed in harsh environments, which makes it well suited for use with air conditioning systems, chilled water, hot water, air, gas, oil and steam pressure systems.





























