Language Selection; Lcd Contrast And Backlight; Checkbox - TESTBOY TV 465 PRO Bedienungsanleitung

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Testboy TV 465

10.1.3 Language selection

The instrument language can be set in this menu.
Keys:
 / 
Selects the language.
TEST Confirms selection and returns to Setup menu.
ESC Returns to Setup menu without changes.

10.1.4 LCD contrast and backlight

In this menu the contrast and backlight mode of the LCD can be set.
Backlight modes:
AUTO The high backlight level is active for 30 seconds after last pressing of any key.
Then the backlight level returns to low level until a key is pressed again.
OFF Backlight level is low.
ON Backlight level is high.
Keys:
TAB Toggles between setup of contrast and backlight
 / 
Sets contrast value or backlight mode
TEST Confirms selection and returns to Setup menu.
ESC Returns to Setup menu without changes.
Note:

If you press the down () key while starting up the instrument you will automatically
jump to the LCD contrast menu.

10.1.5 Checkbox

The in-built Checkbox provides a simple and effective means of checking the calibration of
the TV 465 instrument and accessories. According to the Code of Practice the on-going
accuracy of the PAT tester should be verified at regular intervals and recorded. This is of
special importance if the PAT tester is used on a daily basis. The TV 465 includes an in-
built Calibration Unit ('Checkbox') that is independent from the other instrument's
electronic circuitry and connected directly to the output terminals of the instrument. During
the calibration with the in-built Checkbox all main instrument functions and accessories
can be verified. The calibration results are automatically stored into the instrument's
memory and can be viewed with the PC SW TV 465 software.
Figure 0.17: Language menu
Figure 0.18: LCD menu
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Main menu and test modes