Megohmmeter
Model 24508
Page 10
Technical data
General informa
-
tion
Pr
eparations for
use
Contr
ols and con
-
nections
Manual operation
of the unit
Contr
olling the
unit r
emotely
Maintenance and customer service
n
Never use or operate electrical equipment if either the equipment or you are wet,
not even if just your hands or feet are wet.
n
In the event of faults, switch off the voltage immediately and pull out the plug.
n
Notify any damage or anything unusual on electrical equipment to a skilled person
immediately.
n
Find out about the relevant maintenance information for this equipment; please
refer to the „Maintenance and Customer Service“ chapter.
n
Use the test leads provided to connect the object under test to the megohm-
meter.
n
During insulation-resistance testing, never touch the test probes or the object
under test (high voltage).
n
Measuring the insulation resistance on a capacitive object can be dangerous
for the user. A built-in relay ensures that the capacitive discharge of the element
under test has a time constant of less than 0.1 s for 1 µF. It is forbidden to touch
the object before making sure that it has been completely discharged.
n
Before measuring the insulation resistance it is essential to check that there is
no voltage across the terminals of the object under test.
n
Confirming the “MEASURE: ...” function (using button [2]) switches on the volt
-
age source. Certain safety precautions must therefore be followed depending
on the programmed test voltage.
n
Key to symbols used:
Warning – see operating manual
Warning - Dangerous voltage - risk of electric shock
Ground terminal
