Differential Pressure
pressure measurement relative to the surrounding atmospheric pressure.
See Also: Pressure, Absolute Pressure
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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
Low Pressure Variable Reluctance Sensor
DP45
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The Validyne DP45 Very Low Differential Pressure Transducer is designed for extremely low pressure measurement in the order of 1 inch water column. This instrument is used extensively in connection with flow measurements where dynamic response at low flow rates is required. Dynamic line pressure effects are minimized due to the combination of low internal volume, symmetrical construction, and small volumetric displacement inherent in the DP45 design.
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Product
Liquid Flow Controllers
LC-series
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Alicat Scientific, Incorporated
The LC-series liquid flow controller uses Alicat’s patented laminar flow design to provide users with fast, accurate, and stable volumetric flow control for water or selected other liquids (see Quick Specs below). At the heart of Alicat’s LC-Series liquid flow controllers is an internally compensated, laminar differential pressure measurement technology that yields linear results over a wide flow range.
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Product
Intrinsically Safe Pressure Module
APMi
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AMETEK Sensors, Test & Calibration
The APMi intrinsically safe portable pressure modules offer the functionality and flexibility to read up to four pressure inputs with a single HPC50 handheld pressure calibrator. Use the modules to either expand the range of the HPC50, view all four readings at the same time, or read two different differential pressures simultaneously. The APMi intrinsically safe pressure modules deliver the same high level accuracy whether in the lab or in the field.
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Product
Differential Pressure
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In differential pressure measurement, different pressures act on an oil-filled, pressure difference measuring cell from two sides. The instrument converts the pressure differential into an electronic signal.
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Product
Handheld Digital Manometer
475
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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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Product
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
Power Transfer Unit
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The PTU is a bi-directional, back to back, variable/fixed displacement unit, with a differential pressure compensated displacement control. Displacement of the variable displacement unit is varied to maintain the required running and breakout pressure differential between the yellow and green systems.
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Product
Micromanometer-Thermometer – 20 mbar
HD2114.0
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Portable pressure micromanometer thermometer with 20 mbar built-in sensor. It measures absolute, relative and differential pressure, as well as temperature.
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Product
Mask ventilation resistance and pressure differential tester
WKS-3102
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Mask ventilation resistance and pressure differential tester is used to measure the inhalation and exhalation resistance of mask under specified conditions. Applicable to mask manufacturers, labor protection equipment inspection agencies to carry out related testing and inspection of mask products, mask breath resistance tester, breathing valve air tightness tester, breath resistance machine for measuring respirator and mask protection products in Inspiratory resistance and expiratory resistance under specified conditions.
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Product
Static Pressure Meters
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Portable dual port manometer accessory head for use with our modular multimeters (DMMs) and instruments. Measures gas pressure, static pressure and pressure differential. The ADMN2 includes a zero adjust and the Auto Power-Off (APO) function to conserve battery life. Disable APO for data logging. The ADMN2 measures pressure between -60inWC and 60inWC (inches of water column) and -150.0 to 150.0 mBar. The ADMN2 also measures P1 or P2 pressure readings and calculates the difference between P1 and P2. Take static pressure measurements using the resolution mode of 0.01inWC or 0.01mBar.
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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
7kV, 100 MHz, 2.5 pF, 40 M, Rise Time < 3.5 ns, High Voltage Differential Probe
T3HVD7000-100
Differential Probe
7kV, 100 MHz, 2.5 pF, 40 M, Rise Time < 3.5 ns, High Voltage Differential Probe.
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Product
Gas Differential Pressure Switch
PG
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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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Product
Flex-Tube U-Tube Manometer
1222
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These inexpensive manometers measure positive, negative and differential pressures. Dwyer Flex-Tube U-Tube Manometers combine the inherent accuracy of the simple "U" Tube with the durability of tough, long-lasting plastic construction. Columns are of .375" O.D. flexible and shatter proof clear butyrate tubing.
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Product
6kV, 100 MHz High Voltage Differential Probe with Auto Zero Disconnect
HVD3605A
Differential Probe
The HVD3000A series of high voltage differential probes cover the fullest range of applications, from 120/240 V switch-mode power supplies through 600 V class and 5 kV electrical apparatus. The table below provides a list of recommended probe models based on specific device under test applications.
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Product
Differential Pressure Transmitters
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The differential pressure transmitter portfolio from ABB offers a broad variety of communication possibilities. Another highlight of our sensors is the measurement accuracy up to 0.025 %.
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Product
Ultra Low Pressure Transmitter
P532
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Validyne's P532 Pressure Transmitters are ideally suited for measuring extremely low liquid and gas pressures in industrial applications. Full-scale differential pressure ranges from 0.10 H2O to 2 H2O with line pressure rating of 100 psig, and ranges of 2 H2O to 3200 psid with line pressures up to 3200 psig are offered. Gauge pressure ranges start at 0.10 H2O and absolute pressure from 0.08 psia full-scale. This unique design, which utilizes a diaphragm-type variable reluctance pressure sensor, provides many outstanding advantages including:
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Product
700 V, 25 MHz High-Voltage Differential Probe (÷10, ÷100)
AP031
Differential Probe
The HVD3000A series of high voltage differential probes cover the fullest range of applications, from 120/240 V switch-mode power supplies through 600 V class and 5 kV electrical apparatus. The table below provides a list of recommended probe models based on specific device under test applications.
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Product
Digihelic Differential Pressure Controller
DH
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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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Product
8 GHz Differential Probe with ProLink Interface
DH08-PL
Differential Probe
Teledyne LeCroy’s DH series 8 to 30 GHz differential probes offer the combination of bandwidth, input range and offset capability to address any high-speed probing requirement from debugging serial data interfaces to validating DDR memory systems. DH series probes provide superior loading characteristics and are calibrated with a custom “fine-tuned” frequency response. The ultra-low loading and flat frequency response ensure accurate measurements.
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Product
250 MHz 60 V Common Mode Differential Probe
DL02-HCM
Differential Probe
60 V of common mode and 80 V differential input range with 1 GHz of bandwidth, make these probes ideal for lower voltage GaN power conversion measurements. The 60 V of common mode is well suited for handling any float of the battery and bulk/absorption voltage during charging, while the 80 V differential input range provide margin for any overshoot.
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Product
30 GHz Differential Probe with 2.92mm Interface
DH30-2.92MM
Differential Probe
Teledyne LeCroy’s DH series 8 to 30 GHz differential probes offer the combination of bandwidth, input range and offset capability to address any high-speed probing requirement from debugging serial data interfaces to validating DDR memory systems. DH series probes provide superior loading characteristics and are calibrated with a custom “fine-tuned” frequency response. The ultra-low loading and flat frequency response ensure accurate measurements.
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Product
6 GHz ProBus2 Differential Probe with Adjustable Tip
D600A-AT-PB2
Differential Probe
- Choice of 4 GHz or 6 GHz bandwidth models- Up to 5 Vpk-pk dynamic range with low noise- ±3 V offset range- Low loading and high impedance for minimal signal disturbance- Ideal for DDR2, DDR3, LPDDR2- Deluxe soft carrying case- Innovative QuickLink architecture- Wide variety of tips and leads-- Solder-In Lead-- Optional Positioner (Browser) Tip-- Quick Connect Lead-- Square Pin Lead-- HiTemp Solder-In Lead
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Product
4 GHz ProBus2 Differential Probe with Adjustable Tip
D400A-AT-PB2
Differential Probe
- Choice of 4 GHz or 6 GHz bandwidth models- Up to 5 Vpk-pk dynamic range with low noise- ±3 V offset range- Low loading and high impedance for minimal signal disturbance- Ideal for DDR2, DDR3, LPDDR2- Deluxe soft carrying case- Innovative QuickLink architecture- Wide variety of tips and leads-- Solder-In Lead-- Optional Positioner (Browser) Tip-- Quick Connect Lead-- Square Pin Lead-- HiTemp Solder-In Lead
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Product
Manometers
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Manometers in gauge, absolute, and differential pressures with several unit options including millitorr, inches of water, mmHg Pa, kPa, mmH2O, psi and more. Accuracies up to 0.025% full scale.
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Product
Wet/Wet Handheld Digital Manometer
Series 490A
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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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Product
Differential Probe
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With signals becoming faster, and power supply voltages going lower, these active differential probes will allow floating measurements from 100uVolts to as high as 7000 volts. These probes provide high CMRR and a broad frequency range.
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Product
Pressure Calibration
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We make pressure calibration easy! All you have to do is hand us over your gauge or meter! We’ll look after the rest, half inch, quarter inch, brass or steel fitting, we have the adapters to make it work.
