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Operation manual ISOTEST HV
While mesuring the safety button of the ISOTEST
®
holiday
detector must be pressed down during the whole process.
Should there be no measurement within 5 minutes after
switching on the device or after the last measurement the energy
saving mode is automatically activated.
In the energy saving mode the display is not illuminated and
blinks intermittently indicating „Please turn off power“.
Even in the energy saving mode the batteries are slowly dis-
charged.
Therefore the device has to be switched off on the main switch
after measuring in order to avoid a discharging of the batteries.
3.5 Extended display
Further to the display of the impulse voltage value the corre-
sponding DC voltage value is displayed in the bottom line of the
display.
ISOTEST
®
devices work with "equivalent impulse voltages"*.
As to the sparking distance these voltages are equivalent to DC
voltage values.
* The impulse voltage values have been determined in exten-
sive test series under application-related conditions and ac-
cording to scientific criteria.
