testo Instruments Co. Ltd 05600420 User Manual
1 Contents
3
1
Contents
1
Contents ................................................................................................... 3
2
Safety and the environment .................................................................... 4
2.1.
About this document ........................................................................ 4
2.2.
Ensure safety................................................................................... 5
2.3.
Protecting the environment .............................................................. 5
3
Specifications .......................................................................................... 5
3.1.
Use .................................................................................................. 6
3.2.
Technical data ................................................................................. 6
3.2.1.
Bluetooth module ................................................................................................ 6
3.2.2.
General technical data ........................................................................................ 7
4
Product description ............................................................................... 10
4.1.
Overview ....................................................................................... 10
4.1.1.
Measurement setup ..........................................................................................10
4.1.2.
Overview of testo 420 .......................................................................................11
5
First steps .............................................................................................. 13
6
Using the product .................................................................................. 15
6.1.
Switching Bluetooth® on and off.................................................... 15
6.2.
Settings for the measurement........................................................ 15
6.2.1.
Damping (gliding average) ................................................................................15
6.2.2.
Hood calibration ................................................................................................16
6.2.3.
Zeroing interval (automatic zeroing) .................................................................16
6.3.
Volume flow measurement setup .................................................. 17
6.4.
Measuring ...................................................................................... 20
6.4.1.
Volume flow measurement ...............................................................................20
6.4.2.
Pitot tube measurement ....................................................................................20
6.4.3.
Differential pressure measurement...................................................................20
6.5.
Saving ........................................................................................... 21
6.6.
Transferring measurement data to the PC .................................... 22
7
Maintaining the product ........................................................................ 22
7.1.
Cleaning the instrument ................................................................. 22
8
Tips and assistance............................................................................... 22
8.1.
Questions and answers ................................................................. 22
8.2.
Error messages ............................................................................. 22
8.3.
Accessories and spare parts ......................................................... 23
9
EC Declaration of Conformity ............................................................... 24