Differential pressure

Alongside temperature, the physical measurement parameter of pressure is one of the most important and most measured parameters for applications in research and engineering. A large number of measuring tasks have become indispensable for a wide range of applications in heating, sanitation and air-conditioning sectors, in process engineering and in many other areas.

58 Products found
  • testo 512 - Pressure and flow velocity measuring instrument 0 to 2000 hPa

    Order-Nr. 0560 5129

    The testo 512 differential pressure measuring instrument is available in four different versions. This version is ideal for differential pressure measurement in the measuring range of 0 to 800 inH2O (0 to 2000 hPa).

    • 7 pressure units to choose from: kPa, hPa, mm H2O, mmHg, psi, inch H2O, inch Hg

    • Large measuring range up to 2000 hPa

    • TopSafe protective case (optional) protects against impact, dirt and spray water

    • Illuminated display, min./max. value display, hold function

  • testo 512 - Pressure and flow velocity measuring instrument 0 to 2 hPa

    Order-Nr. 0560 5126

    The testo 512 differential pressure meter is available in 4 different models. This model has a measuring range of 0 to 0.80 inH2O (0 to 2 hPa), 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 2 and 17.5 m/s.

    • 8 measurement units to choose from: psi, kPa, hPa, Pa, mm H2O, mmHg, inch H2O, inch Hg

    • 2 air flow units to select from: m/s, fpm

    • Integrated density compensation

    • Backlit display, min/max values, hold function

  • testo 512 - Differential pressure meter

    Order-Nr. 0560 5127

    The testo 512 differential pressure meter is available in four models. This model has a measuring range of 0 to 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.

    • 8 measurement units to choose from: psi, kPa, hPa, Pa, mmH2O, mmHg, inH2O, inHg

    • 2 air flow units to select from: fpm, m/s

    • Integrated density compensation

    • Backlit display / min and max values / hold function

  • testo 512 - Pressure and flow velocity measuring instrument 0 to 200 hPa

    Order-Nr. 0560 5128

    The testo 512 differential pressure meter is available in four different models. This model has a measuring range of 0 to 200 hPa, 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 10 and 100 m/s.

    • 8 measurement units to choose from: psi, kPa, hPa, Pa, mmH2O, mmHg, inH2O, inHg

    • 2 air flow units to select from: m/s, fpm

    • Integrated density compensation

    • Backlit display, min/max values, hold function

  • testo 521-1 - Differential pressure measuring instrument 0 to 100 hPa (accuracy ±0.2% of f.v.)

    Order-Nr. 0560 5210

    The high precision testo 521-1 differential pressure measuring instrument is ideal for accurate differential pressure measurements in air conditioning and ventilation technology, for pressure drop on filters, for instance, for checking fans and extractors, or for pitot tube measurements.

    • Integrated differential pressure sensor with an accuracy of 0.2 % of f.v.

    • Calculation of the flow velocity and the volume flow via Pitot tube (optional)

    • Multi-point and timed mean calculation

    • 2 probe inputs for additional pressure and temperature probes

  • testo 521-2 - Differential pressure measuring instrument 0 to 100 hPa (accuracy ±0.1% of f.v.)

    Order-Nr. 0560 5211

    The high precision testo 521-2 differential pressure measuring instrument is ideal for accurate differential pressure measurements in air conditioning and ventilation technology, for pressure drop on filters, for instance, checking fans and extractors, or for pitot tube measurements.

    • Integrated differential pressure sensor with an accuracy of 0.1% of f.v.

    • Calculation of flow velocity and volume flow via pitot tube (optional)

    • Multi-point and timed mean calculation

    • 2 probe inputs for additional pressure and temperature probes

  • testo 521-3 - Differential pressure measuring instrument 0 to 2.5 hPa

    Order-Nr. 0560 5213

    The testo 521-3 high precision differential pressure measuring instrument easily determines even the smallest differential pressures (up to +2.5 hPa). Its high accuracy and a resolution of 0.1 Pa make the instrument ideal for differential pressure measurements, in clean rooms, or for flue inspections.

    • Integrated temperature-compensated differential pressure sensor with accuracy of up to ± 0.5 Pa

    • Calculation of the flow velocity and the volume flow via Pitot tube (optional)

    • Direct zeroing of the display values of pressure probes

    • 2 probe inputs for additional pressure and temperature probes
       

  • testo 445 - Service instrument for air conditioning / ventilation systems

    Order-Nr. 0560 4450

    You can keep a close eye on indoor air quality with the testo 445 climate measuring instrument; this versatile tool can measure up to 6 parameters (with the appropriate probe), which can help you make a professional assessment of indoor air quality. This climate measuring instrument supports you in adjusting and checking ventilation and air conditioning systems.

    • Multi-function climate measuring instrument: measure up to 6 measurement parameters at the same time

    • Internal reading memory for up to 3,000 readings

    • Automatic allocation of the duct cross-section to the measuring location (max. 99 measuring locations)

    • Automatic mean value calculation and determination of the volume flow

  • testo 312-3 - Pressure measuring instrument up to 300/6000 hPa

    Order-Nr. 0632 0314

    testo 312-3, robust manometer up to 300/6000 hPa, DVGW approval, incl. alarm display, battery and calibration protocol

    • Load and tightness tests of gas pipes

    • Pressure testing of water pipes using air

    • Switchable measuring ranges with high resolution

    • Alarm indicator for undershooting of freely adjustable limit values

  • Basic set testo 312-4

    Order-Nr. 0563 1327

    Differential pressure gauge testo 312-4

    Hose set for testo 312-4

    Balloon pump with release screw

    Conical test plug 1/2"

    Conical test plug 3/4"

    IR report printer

    Pressure set for gas pressure measurements on heating systems

    System case

  • High-pressure set testo 312-4

    Order-Nr. 0563 1328

    Differential pressure gauge testo 312-4

    Hose set for testo 312-4

    Balloon pump with release screw

    Conical test plug 1/2"

    Conical test plug 3/4"

    IR report printer

    Pressure set for gas pressure measurements on heating systems

    High-pressure plug 3/8" and 3/4"

    High-pressure plug 1/2" and 1"

    High-pressure probe 1up to 5 bar

    System case

  • testo 6321 - testo 6321 Differential Pressure Transmitter

    Order-Nr. 0555 6321

    The perfect solution for automated air conditioning and ventilation applications at an affordable price. Measure differential pressure in industrial and commercial buildings, offices, schools, hotels, museums, restaurants, libraries and more!

    • Pressure transmitter for measuring differential pressure in the 100 Pa to 2 bar measuring range

    • Magnetic valve for automatic zero-point adjustment guarantees high temperature independent accuracy and long-term stability

    • Alignment and analysis save time and costs for commissioning and maintenance

    • Available with and without display

  • testo 6351 - High Accuracy Differential Pressure Transmitter

    Order-Nr. 0555 6351

    testo 6351 Differential Pressure Transmitter

    • Automatic zero-point adjustment guarantees high temperature-independent accuracy and long-term stability

    • Low measuring range down to 50 Pa ensures very high precision at the lowest pressures

    • Measurement of differential pressure, flow velocity and volume flow

    • Configurable alarm management with adjustable response delay and alarm acknowledgement
       

  • testo 549 - Digital manifold

    Order-Nr. 0560 0550

    The testo 549 digital manifold is a breakthrough value, making analog gauges obsolete. It precisely measures high side / low side pressure and instantly displays the corresponding saturation / evaporation temperatures for 60 refrigerants. With optional temperature probes, automatic superheat and sub-cooling calculations can also be displayed.

    • 60 refrigerant profiles stored in the instrument

    • Rugged design and housing with 5 year warranty with registration

    • Large 2-line backlit display

    • Digital accuracy performs more reliably than analog manifold gauge sets for more precise readings

  • testo 6383 - Differential Pressure Transmitter

    Order-Nr. 0555 6383

    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

    • Flat housing enables flush surface integration in the cleanroom wall

    • Low measuring range from 10 Pa ensures very high precision at the lowest pressures

    • Pressure transmitter for measuring differential pressure, as an option: humidity and temperature

    • Automatic zero-point adjustment guarantees high temperature-independent accuracy and long-term stability

  • testo 6381 - Differential Pressure Transmitter

    Order-Nr. 0555 6381

    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

    • Automatic zero-point adjustment guarantees high temperature-independent accuracy and long-term stability

    • Low measuring range from 10 Pa ensures very high precision at the lowest pressures

    • Pressure transmitter for differential pressure, flow velocity and volume flow, as an option: humidity and temperature

    • Configurable alarm management with adjustable response delay and alarm acknowledgement

  • testo 526-1 - Differential pressure measuring instrument 0 to 2000 hPa (accuracy ±0.1% of f.v.)

    Order-Nr. 0560 5280

    Ideal for checking pressure in sensitive industrial processes, the testo 526-1 high precision differential pressure measuring instrument has a measuring accuracy of ±0.1% of the final value. It also has two probe inputs for additional pressure and temperature probes.

    • Temperature-compensated differential pressure sensor

    • Multi-point and timed mean calculation

    • Recording of measurement data with freely selectable measuring rate

    • 2 probe inputs for pressure and temperature

  • testo 435-3 - Multifunction meter w/ integrated differential pressure

    Order-Nr. 0560 4353

    The testo 435-3 multifunction meter is perfect for monitoring, analyzing, and diagnosing indoor air quality, wherever you need to take important IAQ measurements. In addition, you can easily pinpoint and troubleshoot airflow problems with HVAC systems, and immediately see the results of corrections. Commissioning, validating, benchmarking, or simpy adjusting HVAC systems are all easy with the testo 435-3.

    • Integrated differential pressure measurements for flow velocity

    • Optional wireless (RF) temperature probes for remote measurement

    • Backlit LCD for easy viewing

    • Optional printer allows for easy documenting of measured data

58 Products found
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