Comparison Function; Time Function - Testboy TV 431 Manual De Instrucciones

Functional description

Comparison function

If the comparison function has been activated and the measured value exceeds or undercuts the upper or lower limit
value, a signal tone sounds and the text 'PASS' is not shown on the display.
The comparison function can be activated with 'COMP'; the display shows 'COMP'. If the pre-set upper limit value is
smaller than the lower limit value, the comparison function is invalid; '----' is displayed.
Press the COMP button to show the upper and lower limit values. The display shows 'COMP' and the auxiliary display
shows either 'HI' or 'LO' (see below): If the upper or lower limit value is shown on the display, you can change the value
by pressing the ENTER button. The limit value displayed begins to flash. Use the SELECT button to select the correct
measurement range. Set the desired value with the △/▽ buttons and save the setting with ENTER.

Time function

The time function is only available during the insulation test. Press the TIMER button to activate the time function (the
display shows TIMER). The function with which to lock the Test button is not available when the time function has been
activated. The insulation test is performed as soon as the MEASURE button has been actuated. The test comes to an
end after a pre-set time frame.
The following display is shown in the time function mode. The current voltage and the time are shown on the auxiliary
display. The test voltage is displayed whilst an insulation test is being carried out. Press the △ button to display the time.
Press the SELECT button to view the pre-set time frame. The LC display shows TIMER. The main display shows PRES;
the auxiliary display shows the pre-set time frame. Press ENTER. The display shows 'Set'. You can set the time-frame
with the △/▽ buttons. Press ENTER again to accept this setting.
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