4
5
Audible Continuity:
1. Remove covers from test probe tips, insert black test lead into COM socket (
J
) and red
test lead into VΩ RPM (Multifunction) socket (
I
).
2. Set the Function / Range rotary switch (
F
) to the Ω position, press the function/ selection
button (
D
) to display the symbol. The polarity of the red test lead is positive.
3. Touch the test probes to the wire or circuit you wish to check. If the wire or circuit has
continuity, the audible signal will sound. If there is no continuity (open circuit) the display
will show OL.
(
Caution
: Risk of electric shock. Never measure continuity on circuits or wires that have
voltage on them).
Frequency Measurement:
1. Remove covers from test probe tips, insert black test lead into COM socket (
J
) and red
test lead into VΩ RPM (Multifunction) socket (
I
).
2. Set the Function / Range rotary switch (
F
) to 320Hz, 3200Hz, or 32kHz as applicable.
3. Connect the test leads and read the frequency value displayed.
Measuring Temperature:
Note: Although the multimeter is rated for -20ºC to 750 ºC and -4ºF to 1382ºF, the K type
thermocouple supplied with the multimeter is only rated to 250ºC. To measure temperatures
outwith that range, a higher rated professional thermocouple is required.
1. Set the Function / Range rotary switch (
F
) to 1400ºF or 750ºC. The F or C symbols will be
displayed and the display will show the ambient temperature.
2. Connect the black plug of the K type thermocouple to the into COM socket (
J
) and red
plug into VΩ RPM (Multifunction) socket (
I
).
3. Touch the thermocouple probe to the object to be measured and read off the temperature.
(Caution: Risk of electric shock. Ensure that the thermocouple has been removed before
changing to another function / measurement).
Dwell Angle Measurement:
On conventional contact breaker type ignition systems, the dwell angle is the number of
degrees (º) through which the distributor cam rotates while the breaker points are closed.
1. Remove covers from test probe tips, insert black test lead into COM socket (
J
) and red
test lead into VΩ RPM (Multifunction) socket (
I
).
2. Set the Function / Range rotary switch (
F
) to the to the desired DWELL range according
to the number of cylinders on the engine to be measured.
3. Connect the black test lead to car battery negative (ground) or chassis, and the red test
lead to the distributor side terminal of the ignition coil.
4. When the engine is started the dwell angle will be displayed.
Note: To reduce the dwell angle reading the points gap must be increased; to increase the
dwell angle the points gap must be reduced. Refer to the owner’s handbook, workshop
manual or other manufacturer’s documentation for detailed procedures for dwell settings
and adjustments.
Duty Cycle:
1. Remove covers from test probe tips, insert black test lead into COM socket (
J
) and red
test lead into VΩ RPM (Multifunction) socket (
I
).
2. Set the Function / Range rotary switch (
F
) to the DUTY position.
3. Connect the negative (black) test probe tip to earth (ground).
4. Connect the positive (red) test probe tip to the signal wire circuit (for example, a fuel
injector or fuel mixture control solenoid).
RPM (Tachometer) Measurements:
1. Remove covers from test probe tips, insert black test lead into COM socket (
J
) and red
test lead into VΩ RPM (Multifunction) socket (
I
).
2. Set the Function / Range rotary switch (
F
) to either the RPM or x10RPM position.
3. Connect the black test lead to car battery negative (ground) or chassis, and the red test
lead to the distributor side terminal of the ignition coil.
4. Start the engine. Divide the displayed reading by the number of cylinders of the engine.
On x10RPM position, also multiply the displayed reading x 10 to get the actual RPM.
General Specifications:
Polarity:
Auto polarity indication.
Over range indication:
OL on digital display.
Auto zeroing function
Sampling rate:
3 times per second (approximately).
Operating temperature:
0º - 40ºC
Storage temperature:
-10º - 50ºC
Battery:
single 9V.
Low battery indication:
(Refer to diagram: symbol C on display).
Auto power-off: Automatically turns off if no control is operated for 10 minutes. Beeps to
warn of auto power-off. Press hold button (
E
) to reactivate.
Range
Resolution
Accuracy
326mV
0.1mV
+/- (0.5% + 5)
3.26V
1mV
+/- (0.8% + 5)
32.6V
10mV
+/- (0.8% + 5)
250V
0.1V
+/- (0.8% + 5)
DC Voltage (autorange):
Input impedance:
10MΩ (for 326mV range: >100MΩ
Overload protection:
250V DC/AC
