'
When using this Multimeter, the user must observe all
normalsafety rules concerning:
-
protectionagainst the dangersof electric current.
-
protectionof the Multimeteragainst misuse.
For your own safety, only use the test probes suppliedwith
the instrument. Before use, check that they are in good
condition.
1.1.2
Duringuse
If the meter is used near noise generating equipment, be
aware that display may become unstable or indicatelarge
errors.
'
Donot usethe meteror test leadsif they look damaged.
Use the meter only as specified in this manual; otherwise,
the protectionprovidedby the meter maybe impaired.
Use extreme cautionwhen working around bareconductors
or bus bars.
*
Do
notoperate the meter aroundexplosivegas, vapor, or dust.
Verify a Meter's operation by measuring a known voltage.
Do not use the Meter if it operatesabnormally. Protection
may be impaired. When indoubt, havethe Meter serviced.
Uses the proper terminals, function, and range for your
measurements.
When the range of the value to be measured is unknown,
check that the range initially set on the multimeter is the
highest possible or, wherever possible, choose the
autorangingmode.
'
To avoid damages to the instrument, do not exceed the
maximumlimits of the input values shown in the technical
specificationtables.
"
When the multimeter is linked to measurement circuits, do
not touch unusedterminals.
2
Cautionwhen working with voltages above 6OVdc or 3OVac
rms. Suchvoltages poseashock hazard.
When using the probes, keep your fingers behindthe finger
guards.
When makingconnections, connect the common test lead
before connecting the live test lead; when disconnecting,
.
I
disconnect the live test lead before disconnecting the
commontest lead.
Before changing functions, disconnect the test leads from
f
the circuit undertest.
For all dc functions, including manual or auto-ranging, to
avoid the risk of shock due to possible improper reading,
verify the presence of any ac voltages by first usingthe ac
function. Thenselecta dc voltage range equal to or greater
than the ac range.
Beforeattemptingto insert transistorsfor testing. always be
sure that test leads have been disconnected from any
measurementcircuits.
.
'
Components should not be connected to the hFE socket
when makingvoltage measurementswith test leads.
Disconnect circuits power and discharge all high-voltage
capacitors before testing resistance, continuity, diodes, or
capacitance.
Never perform resistance or continuity measurements on
livecircuits.
Before measuring current, check the meter's fuse and turn
off power to the circuit before connecting the meter to the
circuit.
*
In
N
repair work, or when carrying out measurements on
power switching circuits, remember that high amplitude
voltage pulsesat the test pointscan damagethe multimeter.
Useof a
TV
filter will attenuate any such pulses.
3
