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Wohler DP 700 kit | Duct leakage tester

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The Wohler DP 700 is an easy to use positive and negative pressure high accuracy air leakage tester which can be used in a wide range of applications. Not only can the instrument be used for the airtightness of duct systems in can also be used for testing enclosures such as air handling units, climatic chambers, vehicles, and electrical cabinets.

The DP 700 has been especially designed for leakage tests according to EN 12599 - Test procedures and measurement methods to hand over air conditioning, and ventilation systems according to EN 14134 - Performance testing and installation checks of residential ventilation systems. The air tightness values are to the classes of EN 13779 (identical to EN 12237, 1507, 15727, 13403, 1751 and 13180).

Features

  • The ideal tool for the QA testing of ducts including systems such as those built into residential dwellings
  • Additional adapters for air flow rates < 0.3 l/s with a high level of measurement accuracy.
  • Suitable for leakage tests of AHU's
  • Easy to operate
  • Store up to 100 measurements
  • Automatic or manual measurement modes
  • Practical size, 2 easy to carry storage cases

Important notes

The Wöhler DP 700 is not designed for continuous use or for long / extended periods in an attempt to locate leaks within a system.

The Wohler DC series software is not available to purchase or as an optional accessory.

The Instrument Solutions rental models are supplied with 110 V and 230 V power leads.

Technical

Power supply     110 V or 230 V

Range (230 V unit)       0 to 55.00 l/s

                   Class A      Class B       Class C         Class D

20 Pa          290 m²      870 m²       2600 m²       7800 m²
200 Pa          65 m²      195 m²          580 m²        1750 m²
2000 Pa        15 m²       44 m²           130 m²          390 m²

Theoretical duct surface area testing limits at maximum allowable leakage rates (230 V 50 Hz unit)

Range (110 V unit)       0 to 40.00 l/s

Resolution      0.0001 l/s to 0.3000 l/s    0.001 l/s to 3.000 l/s    0.01 l/s > 3.00 l/s

Accuracy (flow measurement)      ± 0.0009 l/s or ± 5 % of the test value whichever is higher

Pressure range      ± 7000 Pa

Pressure resolution       0.1 Pa to ±900 Pa, then 1 Pa

Pressure accuracy       ± 0.5 Pa or ± 2.5 % of the test value whichever is greater

Current consumption       9 A maximum

Weight (without accessories)      9.5 kg

Wohler DP 700 | Duct leakage tester
Wohler DP 700 | Duct leakage tester
Available to purchase from BSRIA Instrument Solutions is the Wohler DP 700 air leakage tester kit complete with hoses / pressure fittings manual and manufacturers calibration protocol (Dual voltage - 110 V or 230 V).

Support documents

  • Download
  • Category
  • File type
  • Download
Download
Wohler DP 700 air leakage rate - duct surface area calculator.zip Wohler DP 700 air leakage rate - duct surface area calculator
Category
Support documents
File type
Archive file
Download (8 KB)
Download
Wohler DP 700 air leakage tester data sheet.pdf Wohler DP 700 air leakage tester data sheet
Category
Technical document
File type
Adobe Acrobat
Download (2 MB)
Download
Wohler DP 700 air leakage tester user manual.pdf Wohler DP 700 air leakage tester user manual
Category
Technical document
File type
Adobe Acrobat
Download (1 MB)

Common customer questions & answers

QQuestion What is the maximum measurement range in volume flow that the DP 700 can achieve?
AAnswer For the 230 V unit the range is 0 to 55 l/s. For further details on the 110 V unit and resolution of the instrument please refer to the instruments user manual found in the download section within the website.
QQuestion Is the DP 700 capable of measuring negative as well as positive pressure testing?
AAnswer Yes, the DP 700 is capable of taking both positive and negative pressure readings depending on your test requirements.