Instrument description
Testboy
®
TV 431
29
ENG
LI
SH
ENG
LI
SH
Element on the display
Description
Display of the insulation test. If the rotary switch is set to “INSULATION” (insulation
test mode) this sign will be displayed if the test voltage is applied; the sign will be dis-
played or suppressed.
Nominal source voltage for the insulation test.
min sec
Measurement units time function.
Measurement unit measuring result.
MAX MIN
Display of the highest, lowest and average value.
Display of messages
Message
Description
batt
Displayed on the main display; means that the battery is not sufficiently charged for
reliable operation. Replace the battery.
bat
Displayed on the auxiliary display; means that the battery is not sufficiently charged
for an insulation test.
P r E S
Pre-set value.
POFF
Automatic deactivation was switched off.
LIVE
In insulation test mode, indicates that the unit has registered the voltage on the input
connections.
DISC
In insulation test mode, indicates that the unit is performing an automatic discharge.
Do not touch any of the input connections in this mode.
SAVE
Measured data are saved.
dEL n:
The selected data will be deleted.
dEL ALL
All saved data is deleted.
COMP Hi
Upper limit value.
COMP Lo
Lower limit value.
- - - -
COMP
Limit value invalid.
Acoustic signal output deactivated.
