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.

57 Products found
  • 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 units for pressure: psi, inH2O, inHg, kPa, hPa, Pa, mmH2O, mmHg

    • 2 units for flow: fpm, m/s

    • Built-in density compensation

  • 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.

    • Temperature compensated differential pressure sensor in instrument

    • Direct calculation of velocity speed and velocity flow

    • Multi-point and timed mean calculation

    • Additional 2 probe sockets for measuring pressure and temperature

  • 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.

    • Temperature compensated differential pressure sensor built into instrument

    • Calculation of velocity and volume flow via pitot tube measurement

    • Multi-point and timed mean calculation

    • 2 probe sockets for pressure and temperature

  • testo 526-2 - Differential pressure measuring instrument 0 to 2000 hPa (accuracy ±0.05% of f.v.)

    Order-Nr. 0560 5281

    The testo 526-2 high precision differential pressure measuring instrument is ideally suited for checking pressure in sensitive industrial processes, thanks to a measuring accuracy of ± 0.05% of the final value. Two additional pressure and temperature probes can be attached.

    • Temperature compensated differential pressure sensor 0 to 2000 hPa built into product

    • Available in 2 accuracy classes: 0.1% / 0.05% of full-scale value

    • Measures leakage rate (drop in pressure per time)

    • 2 probe sockets to connect additional probes for measuring pressure, temperature, current/voltage

  • 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.

    • Automatic mean calculation and volume flow measurement

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

    • Internal data logger (up to 3,000 readings)

    • Simultaneous measurement of up to 6 parameters

  • 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

    • DVGW approval

    • Switchable precision measuring ranges with high resolution

    • Fast reporting of measurement data on site

    • Alarm when user-defined limit values are exceeded

  • testo 312-4 - Differential pressure measuring instrument up to 200 hPa

    Order-Nr. 0632 0327

    Differential pressure gauge testo 312-4

    • Gas-tightness and serviceability test by pressure drop on gas pipes according to DVGW-TRGI 2008

    • Load test on gas pipes according to DVGW-TRGI 2008 with the help of the high pressure probe

    • Pressure tests on drinking water pipes with water using the high-pressure probe according to DIN 1988 (TRWI) as well as with air accoding to the ZVSHK information sheet

    • Pressure test on waste water pipes according to DIN EN 1610

  • 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 557 - 4 Valve Digital manifold kit with Bluetooth and Ext. Vacuum Gauge

    Order-Nr. 0563 1557

    The testo 557 4-valve with 3/8 vacuum port digital manifold comes with a remote vacuum probe for faster and more reliable evacuations, Bluetooth App, two clamp temperature probes for instantaneous superheat / sub-cooling readings, and convenient service case.

    • External vacuum probe for faster and more reliable system evacuation

    • Bluetooth / App integration for monitoring, report generation, and sending reports and invoices via email

    • Accurate, simultaneous superheat / sub-cooling measurements

    • Rugged housing with 5 year warranty with registration for reliable testing

  • testo 420 - Flow Hood

    Order-Nr. 0563 4200 / 400563 4200

    The testo 420 accurate, lightweight flow hood with Bluetooth is the precise and convenient solution for measuring volume flows at supplies and returns. Handling this capture hood with flow straightener and tiltable display is especially easy with the low weight of less than 6.2 lbs. and ergonomic handles.

    • Rugged and tough flow hood that weighs less than 6.2 lbs. (2.9 kg.)

    • Large, easy to read, tiltable, backlit display (removable) makes it easy to see the readings

    • Flow straightener for more precise measurement at turbulent outlets

    • App integration via Bluetooth for fast and easy monitoring and reporting on site

  • testo 480 - Digital temperature and humidity meter

    Order-Nr. 0563 4800

    Air flow measurements in ventilation ducts, temperature measurements in laboratories, humidity measurements in production, pressure difference measurements in clean rooms – the testo 480 temperature and humidity meter comes with a wide range of optional sensors that allow you to measure, analyze, and log these and a variety of other parameters with only one device.

    • High quality optional sensors for measuring air flow / temperature / humidity / pressure / degree of turbulence / heat radiation / CO2 / illumination intensity / PMV / PPD / WBGT

    • High precision, integrated pressure difference sensor included

    • Pro-software for easy and efficient analysis and logging included

    • Intelligent calibration concept

  • testo 435-4 - Multifunction meter w/ memory, software, and differential pressure

    Order-Nr. 0563 4354

    The testo 435-4 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 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 435-4.

    • Integrated differential pressure measurements for flow velocity

    • Optional wireless (RF) temperature and humidity probes for remote measurement

    • Backlit LCD for easy viewing

    • Built-in memory stores up to 10,000 measurements

  • testo 570 - 4 Valve Digital manifold kit with data logging

    Order-Nr. 0563 5703

    The testo 570-2 4-valve with 3/8 vacuum port digital manifold has an internal vacuum sensor, data logging and printing capabilities, and an additional third probe port for either ambient temperature, current, or oil pressure probes.

    • Internal vacuum sensor

    • Data logging and printing capabilities

    • 999 hours of data for further evaluation on your PC

    • 2-clamp temperature sensor, USB cable and carry case

  • 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

57 Products found
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