4.
OPERATING INSTRUCTIONS
Preliminary Note:
1. If the battery is weak. Display will show “ ”. The battery should be replaced
2. The “
” logo or next to the test lead sockets warns that the input voltage
or current should not exceed the indicated values. This is to prevent damage
to internal circuity.
3. The FUNCTION switch should be set to the range to be used before operation.
4.1 DC Voltage Measurement
1) Set the FUNCTION switch to “V ” range to be used.
(2) Connect the BLACK test lead to the “COM” socket and the RED test lead to
the “VΩ” socket
(3) Connect the test leads across the source or load under measurement.
Note:
1. If the voltage range is not known beforehand. set the FUNCTION switch to the
highest range and work down.
2. When “1” is displayed, this indicates overrange and the FUNCTION switch
must be set to a higher range.
3. Don’t apply more than DC 1000V to the input, indication is possible at higher
voltage but there is danger of damaging the internal circuity.
4. Use extreme caution to avoid contact with high tension circuits when
measuring high voltages
4.2 AC Voltage Measurement
(1) Set the FUNCTION switch to “V~” range to be used.
(2) Connect the BLACK test lead to the “COM” socket and the RED test lead to
the “VΩ” socket.
(3) Connect the test leads across the source or load under measurement.
Note
:
1. see DC voltage measurement note 1~2.
2. Don’t apply more than 700Vrms AC to the input,indication is possible at higher
voltage but there is danger of damaging the internal circuity.
3. Use extreme caution to avoid contact with high tension circuits when
measuring high voltage.
4.3 DC current Measurement
(1) Set the FUNCTION switch to the “A ” range to be used.
(2) Connect the BLACK test lead to the “COM” socket and the RED test lead to
the “mA” socket for a maximum of 200mA. for a maximum of 20A,move the
RED test lead to “20A”.socket.
(3) Connect the test leads in series with the load under measurement.
Note:
1. If the current range is not known beforehand.set the FUNCTION switch to high
range and work down.
2. When “1” is display,overrange is being indicated and the FUNCTION switch
must be set to a higher range.
3. The maximum input current is 200mA or 20A depending upon the socket used.
Excessive current will blow the fuse which must be replaced. The fuse rating
should be 200mA or 20A and no more to avoid damage to internal circuity.
4.4 AC Current Measurement
(1) Set the FUNCTION switch to “A~” range to be used.
(2) Connect the BLACK test lead to the “COM” socket and the RED test lead to
the “mA” socket for a maximum of 200mA, for a maximum of 20A, move the
RED test lead to the “20A”socket.
(3) Connect the test leads in series with the load under measurement.
Note:
1. If the current range is not known beforehand..set the FUNCTION switch to high
range and work down.
2. When “1” is display,overrange is being indicated and the FUNCTION switch
must be set to a higher range.
3. The maximum input current is 200mA or 20A depending upon the socket used.
Excessive current will blow the fuse which must be replaced. The fuse rating
should be 200mA or 20A and no more to avoid damage to internal circuity.
4.5 Resistance Measurement
(1) Set the FUNCTION switch to “Ω ” range to be used
(2) Connect the BLACK test lead to the “COM” socket and the RED test lead to
the “VΩ” socket.
(3) Connect the test leads across the resistance under measurement.
Note:
1. If the resistance value being measured exceeds the maximum value of the
range selected,an overrange indication will be displayed (“1”). Select a higher
range. For resistance of approximately 1 Mega Ohm and above. the meter
may take a few seconds to stabilize. This is normal for high resistance
readings.
2. When the input is not connected (open circuit), “1” will be displayed to indicate
overrange condition.
3. When checking in-circuit resistance, be sure the circuit under test has all
power removed and that all capacitors are fully discharged.
4.6 Capacitance Measurement
(1) Set the FUNCTION switch to “F” range to be used.
(2) Insert the capacitor under measurement into the two sockets “C-” and “C+” on
the front panel.
Note:
1. Capacitors should be discharged before being inserted into the test-sockets.
2. When testing large capacitance, note that there will be a certain time lag
before the final indication.
3. Do not connect an external voltage or charged capacitor (especially larger
capacitors ) to measuring terminals.
4.7 Diode Measurement and Audible Continuity Test
(1) Set the FUNCTION switch to the “
” range and connect the test leads
across the diode under measurement, display shows the approx. forward
voltage of this diode.
(2) Connect the BLACK test lead to “COM” socket and the RED test lead to the
“VΩ
” socket..
(3) Connect the test leads to either ends of the part of the circuit to be tested,
if the resistance is lower than approx. 80Ω,the buzzer will sound.
4.8 Back light
Press button “
/ ” to switch on display back light, press again to switch off
back light.
5. MAINTENANCE
(1) The multimeter is a precision electronic device. Do not tamper with the circuity.
to avoid damage:
A: Never connect more than 1000V DC or 750Vrms AC.
B: Never connect a source of voltage when the function switch is set to measure
resistance.
C : Never operate the meter unless the battery cover is in place and fully closed.
D : Test leads should be disconnected and POWER switched off before Battery
and/or fuse replacement.
(2) Turn off the power if the meter is not in use, remove the battery if the meter is
not likely to be used for a long period.
(3) If the “ ” sign appears in the display, open the compartment cover,
remove the spent battery and replace it with a battery of the same type. For
fuse replacement fellow the same the same steps.
(4) Please take out the battery when not using for a long time.
9. Accessories
[1] Test Leads: electric rating 1000V 10A
[2] Fuse: F-200mA/250V - fitted
[3] Operator’s Manual
[4] Holster
[5] Zip-up protective case
For any further information or queries please contact
Customer Careline: 0901 293 0038
Calls are charged at £1 per minute from a BT landline
Call charges from other networks may vary
Technical Support: http://technical.philex.com
© Philex Electronic Ltd. 2008. v1.1
Waste electrical products should not be
disposed of with household waste. Please
recycle where facilities exist. Check with
your Local Authority for recycling advice.
