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Testo 420 Differential Pressure Instrument
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The testo 420 differential pressure measuring instrument is suitable for accurate differential pressure measurement up to 120 Pa, e.g. when checking filters in HVAC systems. Flow velocity and volum...
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Description
The testo 420 differential pressure measuring instrument is suitable for accurate differential pressure measurement up to 120 Pa, e.g. when checking filters in HVAC systems. Flow velocity and volume flow are calculated by the testo 420. The measuring instrument can also be used for absolute pressure measurement. Differential pressure measuring instrument with practical functions You can use a Pitot tube and compatible connection hoses (both optional) to measure the flow velocity and volume flow in ventilation ducts. Timed and multi-point mean calculation, as well as the combination of the two, along with simple input of the duct geometry provide you with support for measurements in ducts.
Additional Details
Key Advantages
- The automatic zeroing ensures higher accuracy for low pressures. All measuring values are easy to read on the large display which has an illumination function.
- Documenting the measurement data
Additional Information
Length
10 cm
Width
10 cm
Height
5 cm
Weight
0.2 kg
Specifications
Measuring range
700 to 1100 hPa
Accuracy
±3 hPa
Resolution
0.1 hPa
Reaction time
1 s
Measuring range
+0.1 to +14 m/s
-120 to +120 Pa
Accuracy
±2 % of mv + 0.5 Pa at +22 °C, 1013 hPa
Resolution
0.01 m/s
0.001 Pa
Reaction time
1 s (t₉₀)
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 ligthing
with illumination
Interface
Micro-USB
Memory
2 GB (internal)
Storage temperature
-20 to +60 °C
The testo 420 differential pressure measuring instrument is suitable for accurate differential pressure measurement up to 120 Pa, e.g. when checking filters in HVAC systems. Flow velocity and volume flow are calculated by the testo 420. The measuring instrument can also be used for absolute pressure measurement. Differential pressure measuring instrument with practical functions You can use a Pitot tube and compatible connection hoses (both optional) to measure the flow velocity and volume flow in ventilation ducts. Timed and multi-point mean calculation, as well as the combination of the two, along with simple input of the duct geometry provide you with support for measurements in ducts.
Additional Details
Key Advantages
- The automatic zeroing ensures higher accuracy for low pressures. All measuring values are easy to read on the large display which has an illumination function.
- Documenting the measurement data