— 8 —
3.5 Explanation for indications
LCD Display
Note) Over range display: OL is displayed on the LCD.
Display symbols
DUT is OFF.
Represents LN-E.
When leakage current
test is interrupted.
R e p r e s e n t s l e a k a g e
current.
Represents Protective
conductor resistance
D u r i n g t h e D U T i s
operated at the leakage
current test.
Represents the test is
fail.
Display prompt the user
to set the DUT switch
on.
The temperature sensor monitors overheating of the transformer.
When the overheat symbol appears on the LCD screen the unit
will cease to operate until it cools down to normal operating
temperature and the overheat symbol disappears from the screen.
Normal operation then resumes.
3.6 Applicable standards
Instrument operation
AS/NZS 3760 In-service safety inspection and testing of electrical
equipment.
Safety: IEC/EN61010-1 CAT.III 300V-instrument
IEC/EN61010-2-030 CAT.III 300V
IEC/EN61010-031 CAT.III 300V(600V)-test lead
Insulation measurement voltage
Over temperature warning
Unit indication
Null indication
Power supply voltage
(Line-Neutral) indication
Fig. 7
