Digital Multimeter can test the following:

• DC Voltage: 0.2V - 600V
• DC Current: 0.2mA - 10A
• AC Voltage: 200V - 600V
• resistance: 200 Ohms - 200 M Ohms
• diode & transistors tester

Supplied with battery (PP3) & test leads

Mercury MTB02 (600.102UN) OPERATING INSTRUCTIONS

Digital Multi Meter DC & AC VOLTAGE MEASUREMENT
1. Connect red test lead to “VΩmA” jack, black lead to “COM”
jack.
2. Set RANGE switch to desired VOLTAGE position, if the voltage
to be measured is not known beforehand, set switch to the
highest range and reduce it until satisfactory reading is
obtained.
3. Connect test leads to device or circuit being measured.
4. Turn on power of the device or circuit being measured voltage
value will appear on Digital Display along with the voltage
polarity.

Digital Multi Tester DC CURRENT MEASUREMENT
1. Red lead to “VΩmA”. Black lead to “COM” (for measurements
between 200mA and 5A connect red lead to “5A” jack with fully
depressed.)
Set RANGE switch to desired DCA position.
3. Open the circuit to be measured, and connect test leads in
SERIES with the load in with current is to measure.
4. Read current value on Digital Display.
5. Additionally, “5A” function is designed for intermittent use only.
Maximum contact time of the test leads with the circuit is 10
seconds, with a minimum intermission time of 15 minutes
between tests.

RESISTANCE MEASUREMENT
1. Red lead to “VΩmA”. Black lead to “COM”.
2. Set RANGE switch to desired Ω position.
3. If the resistance being measured is connected to a circuit, turn
off power and discharge all capacitors before measurement.
4. Connect test leads to circuit being measured.
5. Read resistance value on Digital Display.

DIODE MEASUREMENT
1. Red lead to “VΩmA”, Black lead to “COM”.
2. Set RANGE switch to “ ” position.
3. Connect the red test lead to the anode of the diode to be
measured and black test lead to cathode.
4. The forward voltage drop in mV will be displayed. If the diode
is reversed, figure “1” will be shown.

TRANSISTOR hFE MEASUREMENT
1. Set RANGE switch to the hFE position.
2. Determine whether the transistor is PNP of NPN type and locate
the Emitter, Base and Collector leads. Insert the leads into the
correct holes of the hFE Socket.
3. The meter will display the approximate hFE value at the
condition of base current 10μA and VCE2.8V.

AUDIBLE CONTINUITY TEST
1. Red lead to “VΩmA”, Black lead to “COM”.
2. RANGE switch to “ ” position.
3. Connect test leads to two points of circuit to be tested. If the
resistance is lower then 30Ω±20Ω, the buzzer will sound.

BATTERY AND FUSE REPLACEMENT
Fuses rarely need replacement. They usually blow when the tester
is used incorrectly.
If “ ” appears in on the display, it indicates that the battery
should be replaced.
To replace battery & fuse (F500mA/250V for mA terminal and
F5A/250V for 5A terminal) remove the 2 screws in the back of the
case, simply remove the old fuse or battery, and replace with a
new one. Be careful to observe the correct polarity.

General Specifications
Max display: LCD 3 ½ digits (1999 count) 0.5” high
Polarity: Automatic, indicated minus, assumed plus
Measure method: double integral A/D switch implement
Sampling speed: 2 times per second
Over-load indication: “1” is displayed
Operating Environment: 0ºC-40ºC, at <80%RH
Storage Environment: -10ºC-50ºC, at <85%RH
Power: 9Vdc (1 x PP3 battery supplied)
Low battery indication: “ ”
Static electricity: about 4mA
Dimensions: 126 x 70 x 29mm
Weight: 128g (including battery)