The device warns that it is about to switch off by emitting 3 series of 2 a udible beeps
and, if no action is ta ken, then emit s a long beep an d switches itself off .
When the multimeter has switched itself off automatically, it can be reactiva ted by
any act ion on a key or on the rotary s witch.
Automatic switching off ca n be deactiv ated by holdin g down the " Hz", "MAX MIN", or
"R-H" key whi le switchi ng on.
To eli minate the sli ght re sidua l drain o f the batteri es in t he sle ep mode , it is always
best to s witch the dev ice "OFF".
2.4 DC voltage measurement (V
)
For optimum safety, measurements of voltages between 300V and 600V must be
made only on category III insta llations o r on circ uits of whic h the possible ove rvoltage
levels are known to be less than those of category III.
The instrument has 4 measurement ranges: 600mV, 6.0V, 60V, 600V.
The 600mV ra nge can be used only in t he manual range change mode, by re peated
presses on the "RANGE" key. The other ranges can be used in either the manual or the
automatic range change mode.
Withdra w the test pr obes and leads from their co mpartment.
Switc h the instrument o n in the "V" se tting.
Apply the metalli c part of the blac k test probe on t he (assumed) negati ve part of the
circuit to be tested.
Apply the metallic pa rt of the re d test probe o n the (assumed) posi tive par t of the
circuit to be tested.
Read the measurement result (after stabilization).
Display of the "-" si gn in front of the nu merical value i ndicates that the value measure d is
negativ e (the test probes are reve rsed with re spect to the polarity of the voltage)
2.5 AC voltage measurement (V
)
For optimum safety, measurements of voltages between 300V and 600V must be
made only on category III insta llations o r on circ uits of whic h the possible ove rvoltage
levels are known to be less than those of category III.
The instrument has 4 measurement ranges: 600mV, 6,0V, 60V, 600V.
The 600mV ra nge can be used only in t he manual range change mode, by re peated
presses on the "RANGE" ke y. The other ranges can be us ed in either t he manual or the
automatic range change mode.
Withdra w the test pr obes and leads from their co mpartment.
Switc h the instrument o n in the "V" se tting.
Apply the metallic part of the black test probe on the part of the circuit to be tested
(assumed) closest to the earth potentia l.
Apply the metallic part of the red test probe on the part of the circuit to be tested
(assumed) farthest from the earth potential.
In the "SCAN" mode, if the voltage to be measured is greater than 0.5V, the
multimeter automatically determines if an AC or DC measurement must be made.
If necessary, press the "SEL" key briefly to force an AC voltage measurement (display
of the "
" symbol ins tead of " ")
Read the measurement result (after stabilization).
- 7 -
2.6 Frequency measurement (Hz)
For optimum safety, measurements of voltages between 300V and 600V must be
made only on category III insta llations o r on circ uits of whic h the possible ove rvoltage
levels are known to be less than those of category III.
The instr ument has 3 measurement ranges: 600,0Hz, 6,000kHz and 60,00kHz.
Measurement of the frequency of the voltage measured: start the AC voltage
measurement method, then press the "Hz" key (display of the "Hz" symbol instead
of "V").
Read the measurement result after stabilization.
2.7 Resistance measurement (Ω)
Resista nce, cont inuity, diode tes t, and ca pacitanc e measure ments must be made
only on circuits completely disconnected from any power supply, and after any capacitors
have be en discharged.
The instrument has 6 measurement ranges: 600,0Ω, 6,000kΩ, 60,00kΩ, 600,0kΩ,
6,000 MΩ and 60,00 MΩ. All of the ranges can be used with either automatic or manual
range cha nge.
Withdra w the test pr obes and leads from their co mpartment.
Switc h the instrument o n and set to "
".
Apply the metallic tips of the t est probes to t he terminals o f the resis tance or of the
circuit to be tested.
In the "SCAN" mode, the multimeter automatically determines the nature of the
quantity to be measur ed.
If neces sary, pr ess the " SEL" key briefly to change to the desired measurement
mode .
Read the measurement result (after stabilization).
NB: Touching t he element s or circ uit during t he measure ment may lead to erroneous
results. For resistance measurements on nonlinear circuits, it may be necessary to select
the measurement mode an d the range t o be used manua lly.
2.8 Continuity measurement (Ω)
Resista nce, cont inuity, diode tes t, and ca pacitanc e measure ments must be made
only on circuits completely disconnected from any power supply and after any capacitors
have be en discharged.
The instr ument in dicates continui ty by emit ting a st eady s ound when t he resi stance
measured is less than 30Ω. The value display ed is the value measured in o hms.
Withdra w the test pr obes and leads from their compartment.
Switch the instrument on a nd set to "
".
Apply the metallic tips of the test probes to the terminals o f the resista nce or of the
circuit to be tested.
In the "SCAN" mode, the multimeter can automatically determine and select the
continui ty mode w hen the r esistance measured remains low; otherwise press
the "SEL " key briefly until the co ntinuity sy mbol "
" appears
Read (if necessary) the measurement result (after stabilization).
- 8 -
2.9 Diode measurement (Ω)
Resistance, continui ty, dio de test, and capac itance mea surements must be made
only on circuits completely disconnected from any power supply, and after any capacitors
have be en discharged.
The instrument indicates the voltage across the terminals of the semiconduct ing juncti on.
Withdra w the test pr obes and leads from their co mpartment.
Switch the instrument on and set to "
".
Apply the metallic tips of the test probes to the terminals of the diode or c ircuit to
be tested.
In the "SCAN" mode, the multimeter can automatically determine and sele ct the
diode test mode when the voltage measured is less than approximately 0.8V,
otherwi se, press the "SEL" key bri efly until t he diode tes t symbol "
" appears.
The test probes must be a pplied to the terminals of the diode or juncti on to be teste d
accordi ng to the follo wing polari ties.
1) f orward dire ction (conducting) : apply t he black pro be to the cathode a nd the red
probe to the anode. Read the measurement result (after stabilization), s ee figure A
(the threshold v oltage of a silic on diode is betwee n 0.5V and 0.7V; i t is betwee n 0.2
and 0.3V for a germaniu m diode. High-voltage diodes, some Zener diodes, and LEDs
cannot be tested by thi s method).
2) reverse direction (non-conducting): apply the blac k probe to the a node and the red
probe to the cathode. Read the measurement result (after stabilization), see fi gure B
(a diode or junc tion in goo d conditio n causes the dis play of "OL") .
With so me types of diode, a mea sured va lue outsi de the stated voltage ranges
does no t necessari ly mean that the diode or junct ion is defec tive.
3. CHARACTERIS TICS
3.1 General conditions