User's Manual
Manuals
Brands
testo Instruments Manuals
Electronics
Flowhood
11
12
13
14
15
16
17
18
19
20
Table Of Contents
user manual
1 Contents
2 Safety and the environment
2.1. About this document
Use
Symbols and writing standards
2.2. Ensure safety
2.3. Protecting the environment
3 Specifications
3.1. Use
3.2. Technical data
3.2.1. Bluetooth module
3.2.2. General technical data
4 Product description
4.1. Overview
4.1.1. Measurement setup
4.1.2. Overview of testo 420
Instrument status icons:
Control keys
5 First steps
Inserting batteries/rechargeable batteries
Implementing settings
6 Using the product
6.1. Switching Bluetooth® on and off
6.2. Settings for the measurement
6.2.1. Damping (gliding average)
6.2.2. Hood calibration
6.2.3. Zeroing interval (automatic zeroing)
6.3. Volume flow measurement setup
Standard hood (610x610 mm, scope of delivery; 360x360, accessories)
Large hood (1220x610 and 1220x305, accessories)
Attaching the measuring instrument
6.4. Measuring
6.4.1. Volume flow measurement
6.4.2. Pitot tube measurement
6.4.3. Differential pressure measurement
6.5. Saving
Open folder
Delete folder
Set as Logging Folder
Total Volume Flow
6.6. Transferring measurement data to the PC
7 Maintaining the product
7.1. Cleaning the instrument
8 Tips and assistance
8.1. Questions and answers
8.2. Error messages
8.3. Accessories and spare parts
FCC说明书 RF警语
6
Using the prod
uct
19
Attaching t
he measuring ins
trument
1.
Push the t
esto
420 complete
ly into the instrument hold
er, pay
attention
to the catc
h on the ri
ght
-
hand a
nd left
-
hand sid
e in the
bracket.
1
...
...
16
17
18
19
20
...
...
24