4. PRECAUTIONS AND PREPARATIONS FOR MEASUREMENT
1. Ensure the battery is correctly placed in the battery compartment.
2. Do not exceed the input limits shown below:
Function Range
Input Terminals
Maximum Input
DCV 200mV
250VDC
ACV 200mV
V/OHM COM
250VAC
DCV 2~1000V
1000 VDC
ACV 2~750V
750VAC
OHM
V/OHM COM
250V DC/AC
Diode
V/OHM COM
DCA 200mA
200mA DC/AC
ACA 200mA
A COM
DCA2A
2A DC/AC
ACA2A
DCA 20A
20A COM
20A DC/AC
3. Inspect the test leads for damaged insulation or exposed metal. Check Test lead continuity. Damaged
leads should be replaced.
4. Select the proper function and range for your measurement
5. Check the input terminal position for red test lead depending on measurement ranges.
6. Either one of the test leads should be removed from the circuit under test when changing the test ranges.
7. To avoid electrical shock or damage to the meter Do not apply more then 500V between any terminal and
earth ground.
8. To avoid electrical shock, use caution when working above 60VDC or 25VAC rms. Such voltage poses a
shock hazard.
9. When measurement is completed switch off the power. Remove the battery when not used for
extended periods to avoid leakage problems.
10. Do not tamper with the circuitry to avoid damage.
11. Do not use or store the instrument in conditions of high temperature and high humidity.
5. METHOD OF MEASUREMENT
5.1 DCV & ACV MEASUREMENT
1. Set the Function range switch at the required position.
2. Connect black test lead to "COM" terminal and red test lead to the "V/OHM" input terminal.
3. Connect test leads to measuring point and read the display value. The polarity of the red lead connection
will be indicated at the same time as the voltage.
Note:
a. If the voltage to be tested is unknown beforehand, set the Function range switch to the highest range
and work down.
b. When only the figure "1" is displayed over range is being indicated and the function range switch has to
be set to a higher range.
c. Never try to measure voltage above 1000V! Although indication is possible, there is danger of damaging
the internal circuitry.
5.2 DCA & ACA MEASUREMENT
1. Connect the black test lead to the "COM" terminal and the red test lead to "A" terminal for a maximum of 0.5A
2. Set the function range switch at the required position.
3. Connect test leads to measuring points and read the display value. The polarity at the red test lead
connection will be indicated at the same time as the current.
Note:
a. If the current range is unknown beforehand, set the function range switch to the highest range and
work down.
b. When only the figure "1" is displayed, over range is being indicated and the function range switch has
be set to a higher range.
