Differential Pressure
pressure measurement relative to the surrounding atmospheric pressure.
See Also: Pressure, Absolute Pressure
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Product
Electronic Differential Pressure
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An innovative software and hardware concept makes it possible to combine any two pressure transmitters of the VEGABAR 80 series into an electronic differential pressure system. Electronic differential pressure measurement is often used for filters, pumps and pipelines.
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Product
Wet-Wet Differential Pressure Sensor
DP303
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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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Product
Explosion-Proof Differential Pressure Switch
1950G
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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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Product
Differential Pressure and Temperature Data Logger
PRTemp1000D
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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.
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Product
Differential Pressure Transmitter
668
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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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Magnehelic Differential Pressure Gage
2000
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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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Product
Explosion-Proof Differential Pressure Switch
H3
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Explosion-proof, heavy duty, industrial unit has patented and unique new design which provides sensitivity to differential pressures as low as 10 inches of water (254 mm w.c.), yet handles total pressure of 1500 psi (103 bar). Unlike common differential pressure switches that use a piston-type motion transfer, the Series H3 utilizes a rotary motion transfer shaft that prevents a change in total pressure from causing a setpoint shift.
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Product
Mini-Photohelic Differential Pressure Switch/Gage
MP
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The Series MP Mini-Photohelic differential pressure switch/gage combines the time proven Minihelic II differential pressure gage with two SPDT switching setpoints. The Mini-Photohelic switch/gage is designed to measure and control positive, negative, or differential pressures consisting of non-combustible and non-corrosive gases.
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Product
Differential Pressure (Density)
VEGADIF
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In density measurement of liquids with differential pressure, two pressure measuring points are mounted at a fixed distance from each other. There are thus two different pressures acting on the system. The differential pressure transducer calculates the density of the medium from the resulting pressure difference.
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Product
Medical Masks Differential Pressure Tester
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Sataton Instruments Technology CO., Ltd
Medical face mask differential pressure tester also called mask breathility tester is to determine the breathability of medical face mask materials. The tester can measure the differential pressure (Delta P) required to draw air through a measured surface area at a constant air flow rate is used to measure the air exchange pressure of the medical face mask materials. By providing the suction air through the holding sample, the tester can measure the Delta P by differential pressure transducer. It is to determine the air permeability and using comfort of the materials for medical mask.
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Product
Compact Economic Differential Pressure Switch
PDPS
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The Series PDPS's large diameter diaphragm and snap action switch make it dependable and ideal for OEM applications. The Series PDPS Pressure Switches are available for pressure, vacuum, and differential applications and are factory preset for pressures from 0.07 in. of w.c. to 1.0 in. of w.c. with full-scale repeatability of ±0.02 in. of w.c.
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Product
Electronic Differential Pressure
Density Measurement
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An innovative software and hardware concept makes it possible to combine any two pressure transmitters of the VEGABAR 80 series into an electronic differential pressure system to measure density. Electronic differential pressure measurement is used for measuring density change and/or for compensation when the level needs to be measured.
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Product
AD06A Baratron® Differential Pressure Sensor
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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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Product
Manometer for Differential Pressure
MANO2-A
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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 Meters, Micromanometers
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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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Product
Differential Pressure Transmitter Trainer
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Unitech Scales And Measurements Pvt. Ltd
This table top model comprises of two pressure chambers. One for high pressure and another for low pressure. The two pressure chambers are fitted with pressure gauges. The differential pressure transmitter is connected to the two chambers. The pressure is built by a foot air pump. Digital instrument is provided to indicate the differential pressure with transmitter output.
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Product
Wet/Wet Differential Pressure Transmitter
645
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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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Product
Gas Permeability Tester with Differential Pressure Method
GPT-203
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GPT-203 Gas Permeability Tester is based on the differential pressure method and is professionally applicable to the determination of permeance and permeability of plastic films, composite films, high barrier materials, sheeting, metal foils.
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Product
Differential Pressure Transmitter
DPW
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•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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Differential Pressure Instruments
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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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Differential Pressure Flow Meters
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Engineers can rely on the V-Cone dp flow meter to make life easier. McCrometer’s differential pressure flow meter is the versatile, highly compatible flow measurement solution for a variety of industries. When accuracy and repeatability are critical, the V-Cone’s performance brings superior value.
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Differential Pressure Transmitter
616W
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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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CO2 Air Quality & Differential Pressure Measurement
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Our Rotronic CO2 and differential pressure instruments complete the PST range of parameters important for environmental monitoring.
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Differential Pressure Switches
P845
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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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Product
Digital Differential Pressure Manometer
Si-PM3
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The palm-sized Sauermann Si-PM3 digital differential pressure manometer easily measures pressure.
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Product
Differential Pressure Transmitter
636D
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The Series 636D Differential Pressure Transmitter can be used for measuring pressures of liquids, gases & vapors. All available ranges have an excellent 0.5% F.S. accuracy with a 4-20 mA Output standard or optional 1-5 VDC output.
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Product
Compact Differential Pressure Transmitters
Series 668B/D
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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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Product
Differential Pressure Transmitter
616D
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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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Product
General Performance Differential Pressure Transducers
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These general performance Baratron® differential capacitance manometers measure the difference in pressure between the inlet tube and the reference cavity. The reference cavity can be connected to any pressure or vacuum source, or be open to local atmosphere.
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Industrial Differential Pressure Transducers
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These industrial Baratron® capacitance manometers feature differential pressure measurement, industrial enclosures, and higher operating temperature ranges for industrial applications.





























