Keypad

Number

1

2

3

4

Table 1. Key Descriptions

Symbol

Name & Description

 

 

OPower

Press once to turn the Tester on; a test pattern is displayed briefly. (Test pattern remains displayed while key is held pressed.) Press again to turn the Tester off. The Tester sets up to the power- up configuration each time you turn it on.

><Arrow Keys

These keys have multiple uses. Refer to other areas for specific <and >descriptions.

cContrast/Backlight

Tap briefly to adjust contrast (with <>); tap again to store setting and return to normal operation. Press and hold Cfor about 1 second to turn the backlight on or off.

M

Screen Mode

Press to cycle the Tester through Waveform,

 

Harmonics, and Text Screen Modes. You select

 

the Measurement Function (Volts, Amps, or

 

Watts) independently of the Screen Mode.

 

 

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Fluke 39, 41B user manual Keypad, Number Key Descriptions Symbol Name & Description