Testo 420 Differential Pressure Measuring Instrument

Includes: testo 420, batteries and calibration protocol.

Reference 0560 0420

Brand Testo

The testo 420 is used for volume flow measurements (main application), Pitot tube measurements and pressure measurements
for air conditioning and ventilation systems. Thanks to its interchangeable flow hoods, the testo 420 can be used for air inlets and outlets of various sizes.

With the additional App (Android/iOS), the readings can be conveniently displayed on a tablet or smartphone, and in addition a measurement can be started, stopped and saved via the App.

FEATURES

Pressure (differential pressure) -120 to +120 Pa.
Pressure (absolute pressure) 700 to 1100 hPa.
Calculate flow velocity and volume flow using a Pitot tube.
Save data for analysis and documentation.
Automatic zeroing.
Large display.
Micro-USB port.

Measurement of Volume Flow with the Testo 420

Testo 420 Differential Pressure Measuring Instrument

Differential Pressure - Piezoresistive
Measuring range	-120 to +120 Pa+0.1 to +14 m/s.
Accuracy	±2 % of mv + 0.5 Pa at +22 °C, 1013 hPa.
Resolution	0.001 Pa 0.01 m/s.
Reaction time	1 s (t₉₀).
Absolute Pressure
Measuring range	700 to 1100 hPa.
Accuracy	±3 hPa.
Resolution	0.1 hPa.
Reaction time	1 s.
General Technical Data
Dimensions	150 x 85 x 35 mm.
Operating temperature	-5 to +50 °C.
EU-/EG-guidelines	EU-guideline 2014/30/EU.
Battery type	Alkali manganese, mignon, type AA.
Battery life	40 h.
Display size	3.5".
Display function	Dot matrix.
Display lighting	With illumination.
Interface	Micro-USB.
Memory	2 GB (internal).
Storage temperature	-20 to +60 °C.

Download

Testo 420 Manual

PDF Specifications of the Testo 420 Differential Pressure Measuring Instrument.

Download (356.28k)

No customer reviews for the moment.

COMPONENT	DESCRIPTION	PART No.
Hose - Silicone	Connection hose, silicone - max. load capacity up to 700 hPa (mbar).	0554 0440
Hose - Silicone-free	Connection hose silicone-free for differential pressure measurement, length 5 m, load up to maximum 700 hPa, (mbar).	0635 2045
1000 mm Pitot tube	Use the robust, 1000 mm long Pitot tube with a diameter of 7 mm for measuring flow velocity (in combination with a compatible measuring instrument / probe).	0635 2345
350 mm Pitot tube	Use the robust, 350 mm long Pitot tube with a diameter of 7 mm for measuring flow velocity (in combination with a compatible measuring instrument / probe).	0635 2145