TESTO 420 - First steps; Initial Setup and Battery Installation

6 First steps
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6 First steps
Inserting batteries/rechargeable batteries
1. Open the battery compartment.
2. Insert the batteries or rechargeable batteries (scope of delivery
includes 4x 1.5V Type AA/ LR6).
3. Close the battery compartment.
When not in use for a long period of time, take the
batteries/rechargeable batteries out.
Implementing settings
1. Press to access the menu.
2. Select the menu item you require using ►, ▲, ▼, ◄.
Key functions
Display Explanation
►, ▲, ▼,◄ Change parameter, select unit
Confirm input
1. Menu Level 2. Menu Level 3. Menu Level
Application Flow Hood K-factor
Actual/Standard
Pitot tube Duct
Pitot tube factor
Pitot Temperature
Actual/Standard
Pressure only --