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8. OPERATING INSTRUCTIONS
8.13 MEASURING TEMPERATURE
1. Set the measurement function range switch to
°C °F
position. Then press the "
SEL
"
button to select between
°C
and
°F
.
2. Connect the negative "
–
" plug of the K type thermocouple to the " COM " terminal and
the positive "
+
" plug of the K type thermocouple to the "
V
Ω
mAHz
" terminal.
3. Connect the sensing end of the thermocouple to the object to be measured.
4. Wait until the reading is stable, then read the screen.
Note:
1. When the measured temperature exceeds 1000°C /1832°F, the screen will show
"
OL
".
2. To avoid possible damage to the meter or other equipment, remember that while the
meter is rated for -20°C to +1000°C and -4°F to 1832°F, the K Type Thermocouple
provided with the meter is rated to 250°C. For temperatures out of that range, use a
higher rated thermocouple.
The K Type Thermocouple provided with the meter is a present, it is not professional
and can only be used for non-critical reference measurements. For accurate
measurements, use a professional thermocouple.
8.14 MEASURING RPM
1. Set the measurement function range switch to
position.
2. If the engine to be tested is a 2-stroke engine, press the "
SEL
" button until the symbol
" " appears on the upper area of the screen.
If the engine to be tested is a 4-stroke engine, press the "
SEL
" button until the symbol
" " appears on the upper area of the screen.
3. Connect the negative (black) output plug of the inductive pick up to the "
COM
"
terminal and the positive (red) output plug of the inductive pick up to the "
V
Ω
mAHz
"
terminal.
4. Clamp the inductive pick up to a spark plug wire with the arrow mark on the inductive
pick up pointing to the spark plug. Make sure that the pick up jaws are completely
closed.
5. Start the engine and read the reading on the screen.
Note
：
1. The input voltage must be between 2Vp and 50Vp. If the voltage is too low, it will be
impossible to make measurement.
2. If the engine's rotation speed is too low, the stability of reading will decrease.
3. The polarity of the input voltage must be correct; otherwise it will be impossible to
make measurement.
4. The inductive pick up will become hot and the reading will become unstable after the
measurement lasts for a period of time; in this condition, remove the inductive pick up
from the spark plug wire to stop the measurement and wait until the inductive pick up
cools down, then you can resume the measurement.
