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Crest Factor....................................................≤3 at full scale up to 300V, decreasing linearly to ≤1.5 at 600V
Digits x Height.................................................4x14mm
Overrange indication......................................."OL" is displayed
Auto Power Off................................................15 minutes (approximately) with disable feature
Polarity.............................................................Automatic (no indication for positive); Minus (-) sign for negative
Measurement Rate..........................................3 times per second, nominal
Low Battery Indication....................................."
Battery..............................................................1.5V AAA x2 battery supplied
Fuses................................................................mA, µA ranges; 0.5A 600V ceramic fast blow A range; 10A/600V ceramic fast blow
Operating Temperature....................................41°F to 104°F (5°C to 40°C)
Storage Temperature.......................................-4°F to 140°F (-20°C to 60°C)
Operating Humidity..........................................Max 80% up to 87°F (31°C) decreasing linearly to 50% at 104°F (40°C)
Storage Humidity.............................................<80%
Operating Altitude............................................7000ft. (2000meters) maximum.
Weigh...............................................................260g
Size...................................................................117x 62 x 45mm
Conformity.........................................................EN 61010-1, EN61010-2-033
1. Battery Cover
2. 4,000 counts LCD Negativity display
3. RANGE button
4. MAX/MIN button
5. Mode button
6. HOLD and Flashlight button
7. Function switch
8. COM input jack
9. 10A input jacks
10. Positive,mA, µA input jack
Auto power off
•)))
Continuity
Diode test
Battery status
n
nano (10
) (capacitance)
-9
µ
micro (10
) (amps, cap)
-6
m
milli (10
) (volts, amps)
-3
A
Amps
k
kilo (10
) (ohms)
3
F
Farads (capacitance)
M
mega (10
) (ohms)
6
Ω
Ohms
Hz
Hertz (frequency)
V
Volts
%
Percent (duty ratio)
AC
Alternating current
AUTO
Autoranging
DC
Direct current
HOLD
Display hold
MAX
Maximum
MIN
Minimum
5. OPERATION
WARNING! Risk of electrocution. High voltage circuits, both AC and DC are dangerous and should be measured with great care.
‰
Always turn the function switch to the off position when the meter is not in use.
WARNING! If "OL" appears in the display during a measurement, the value exceeds the range that has selected. Change to a
‰
higher range.
5.1.
DC VOLTAGE MEASUREMENTS
DO NOT measure DC/AC voltages if a motor on the circuit is being switched ON or OFF. Large voltage surges may occur that can
8
damage the meter
5.1.1.
Set the function switch to the VDC position.
5.1.2.
Insert the black test lead into the negative COM jack.
Insert the red test lead into the positive V jack.
5.1.3.
Touch the black test prob tip to the negative side of the circuit
Touch the red test probe tip to the positive side of the circuit.
5.1.4.
Read the voltage in the display
5.2.
AC VOLTAGE (FREQUENCY, DUTY CYCLE) MEASUREMENTS
WARNING! Risk of electrocution. The probe tips may not be long enough to contact the live parts inside some 230V
‰
outlets for appliances because the contacts are recessed deep in the outlets. As a result, the reading may show 0 volts
when the outlet actually has a voltage on it. Make sure the probe tips are touching the metal contacts inside the outlet
before assuming that no voltage is present.
5.2.1.
Set the function switch to the VAC/Hz/% position.
© Jack Sealey Limited
" is displayed if battery voltage drops below operating voltage
Original Language Version
fig.1
MM104.V2 Issue 1 19/01/21
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