Differential Pressure
pressure measurement relative to the surrounding atmospheric pressure.
See Also: Pressure, Absolute Pressure
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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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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 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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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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CO2 Air Quality & Differential Pressure Measurement
Our Rotronic CO2 and differential pressure instruments complete the PST range of parameters important for environmental monitoring.
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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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VELOCICALC Multi-Function Ventilation Meter
9565-P
The portable, handheld VELOCICALC® Multi-Function Ventilation Meter 9565-P features a menu-driven user interface for easy operation in your local language. On-screen prompts and step-by-step instructions guide the user through instrument setup, operation, and field calibration. The 9565-P also features an ergonomic, overmolded case design with probe holder and a keypad lockout to prevent tampering during unattended use. The 9565-P model has a differential pressure sensor and does not include a probe.
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Gas Permeability Tester with Differential Pressure Method
GPT-203
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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Manometer – Thermometer – 2 Inputs
HD2124.1
Handheld manometer-thermometer with two inputs and LCD display. It performs measure of absolute, relative, differential pressure and temperature.
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Differential Pressure Probes
PP473-S…
Differential pressure probes complete with SICRAM module to measure pressure in the range 10, …, 2000 mbar.
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Differential Pressure Sensor for Gases
The differential pressure sensors from Sensirion measure reliably, fast and long-term stable. The fully calibrated and temperature compensated sensors offer highest accuracy and resolution, especially at very low differential pressures. The small and cost-effective design makes them an ideal match for price-sensitive solutions, e.g. in medical and HVAC applications.
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Handheld Differential Pressure Meter
DHM1100
High accuracy allows deviation to be around 1.5%FS 3 Pa Key query operation, MAX/MIN/AVG value available Extremely low consumption enables 2 AAA batteries to be continuously working for 500 hours Screen backlight guarantees the data to be read at badlight condition
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General Performance Pressure Transducers And Switches
These general performance Baratron® capacitance manometers are available as pressure transducers with an analog signal proportional to absolute or differential pressure, or as switches with relay outputs based on pressure.
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Handheld Digital Manometer
475
The Dwyer Series 475 Mark III Handheld Digital Manometer is ideal for field calibration, monitoring or trouble shooting HVAC systems, clean rooms or a wide range of other low pressure pneumatic systems. This handy instrument measures positive, negative or differential pressures of air and natural gases in ranges from 1 in. w.c. (0.249 kPa) to 150 psid (10.34 bar).
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Floating Contact Null Switch
1640
The unique electric switch design in the 1640 is another Dwyer Instrument, Inc. innovation. The Dwyer Model 1640 Differential Pressure Switch resembles the Series 1630 switches. The Model 1640, however, is equipped with a single pole, double throw floating contact switch (not snap acting) so it functions as a null switch.
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Gas Differential Pressure Switch
PG
Large sensitive diaphragm and reliable, time proven mechanical design are combined in Series PG pressure/differential pressure switches. For use with air and other compatible gases, they feature excellent ±1% of full scale repeatability, clear easy-to-read scale and convenient external setpoint adjustment.
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Residential/Commercial Combustion Analyzer w/ NOx Sensor
C165+N
UEi Test & Measurement Instruments
Backed by UEi Service+ to give up to 6 years’ warranty, next day recertification, and a reduced cost of ownership. The C165+ Residential/Commercial Combustion Analyzer is easy to use with a rugged design, multiple sensor protections, altitude compensation and differential pressure. Prints to optional printer and wireless App. The new LINK feature connects the included wireless pipe clamp temperature probes and other optional probes to the C165+. Essential information for installing and maintaining furnaces and boilers all in one device.
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Double Bellows Differential Pressure Switch
DP
Two opposing bellows in the Model DP differential pressure switch result in maximum sensitivity, quick response to changes and good vibration resistance. Choice of brass or 316 stainless steel assures broad media compatibility. Setpoint adjustment is easy thanks to external knobs and large, clear scale reading directly in psid.
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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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Micromanometer
6700
The Handheld Micromanometer – Model 6700 can be used with pitot tubes, flow grids, differential pressure tubing, or the optional velocity-grid (for average face velocity readings). It comes standard with the Model 6715 TABmaster Capture Hood, but is also available for purchase separately.
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Pressure Transducers with USB Interface
P61
The Validyne model P61 is a digital differential pressure transmitter designed for industrial pressure measurement applications. The on-board microprocessor provides high accuracy and improved stability in changing thermal environments. Communication and power via USB interface provides remote zero and span adjustment as well as digital pressure readings in engineering units. Drivers and software for the USB interface are included.
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Photohelic Pressure Switch Gage
A3000
Photohelic Switch/Gages function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic gage design. The Photohelic switch/gage measures and controls positive, negative or differential pressures of air and compatible gases
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MIL-C-24217 Connectors
107 Series
The Teledyne DGO 107 Series connectors are rugged, metal shell connectors manufactured and tested to the stringent requirements of Mil-C-24217, and used primarily in Navy dry mate submersible applications where reliability in differential pressure applications is critical.
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Micromanometer – Thermometer – Data Logger – 200 mbar f.s.
HD2134.2
Portable Micromanometer-Thermometer Data Logger with 200 mbar built-in sensor. It performs measure of absolute, relative, differential pressure and temperature.
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Barometer-Manometer-Thermometer
HD2114B.0
Barometer-Micromanometer-Thermometer with built-in barometric sensor (600…1100 mbar) for absolute, relative and differential pressure and temperature measurements.
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Pneumatic Pressure Transmitters
Deltapi N Series
Deltapi N series includes a range of pneumatic transmitters suitable for reliable measurements of pressure, differential pressure, flow or level of liquids, steam and gas. Deltapi N transmitters provides a wide selection of measuring elements to match required working pressure ratings and calibrated spans.
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Wet/Wet Handheld Digital Manometer
Series 490A
Liquid & Gas Pressure Measurement, ±0.5% FS Accuracy. The SERIES 490A Digital Manometers are versatile, hand-held, battery operated manometers available in several basic ranges for positive or positive differential pressure measurement and can tolerate most liquid media compatible with 316LSS. A new feature added to the Series 490A is a field adjustable damping, which allows the user to choose the level of display averaging rate corresponding to the fluctuation level common in many applications.
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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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Residential/Commercial Combustion Analyzer w/ Pressure
C163
UEi Test & Measurement Instruments
Backed by UEi Service+ to give up to 6 years’ warranty, next day recertification, and a reduced cost of ownership. The C163 Residential/Commercial Combustion Analyzer is easy to use with a rugged design, multiple sensor protections, altitude compensation and differential pressure. Prints to optional printer and wireless App. Essential information for installing and maintaining furnaces and boilers all in one device.
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Pressure/ Vacuum Sensors
There are three different types of pressures that can be measured using Premier Electrosystems' Pressure Sensors: Gauge, Absolute, and Differential. Gauge pressure is the pressure measured relative to the ambient atmospheric pressure.A typical application for a gauge pressure sensor is to measure liquid levels in a vented tank using the difference in hydrostatic pressure and ambient atmospheric pressure. Absolute pressure sensors will give the result relative to zero (a perfect vacuum). This is useful in applications where there is a direct effect of altitude on the pressure being measured. Differential pressure sensors measure the difference in pressure between two points. Differential pressure sensors are often used to monitor airflow in HVAC applications.
