Instrument description
28
Testboy
®
TV 431
Element on the display
Description
Display of a low battery status. Replace the battery given a low charging status.
To avoid incorrect measuring results, which could lead to an electric shock or injury,
replace the battery immediately when this is registered on the display.
LOCK
Indicates that the button will be locked during the next depression of the Test button on
the test instrument, i.e. It will remain activated until you have pressed the Test button
again.
HOLD
Hold function; the display is not updated.
COMP
The comparison function was selected.
PASS
This display is shown if the comparison function has been activated and the measured
value is located in the permissible range between the upper and lower limit value.
DAR
The comparison function was selected.
REL
Display of the differential absorption ration (DAR) in the insulation test mode.
PI
Display of the polarization index (PI) in insulation test mode.
TIMER
The time function was selected.
MEMO
The memory function was selected.
READ
Display of the saved data, invalid data is displayed with ---
DC
The DC voltage function was selected.
AC
The AC voltage function was selected.
VDC
The test voltage unit is checked in the insulation test mode.
Minus sign; is displayed if the measured value lies under 0.
Larger than; indicates in insulation test mode that the measured value is too high.
Warning against dangerous voltage; in insulation test mode shows that a voltage of
over 20 V has been registered at the input connections.
Continuity test was selected.
Automatic shut-down was selected.
