DIGITAL MULTIMETER
OPERATING INSTRUCTION
4.19.6 Read the resistance on the main indicator of the LCD.
NOTE:
If the test leads are open or the resistance of the circuit is
over 400Ω, “OL” will appear on the LCD.
4.20 MEASURING RELATIVE HUMIDITY
4.20.1 This function is used for measuring the ambient
humidity around the meter.
4.20.2 Turn the rotary selector away from the OFF position.
4.20.3 The current ambient humidity will be shown on the
humidity display of the LCD.
NOTE:
1 The humidity sensor is placed inside the front part of the
meter and therefore it may take a longer time to reach
balance with the environment being measured.
Furthermore, it takes a longer intermission time, about
20 seconds, for sampling and the meter has to be
exposed to the environment for a longer time for
accurate reading. Hence it is not suitable for
measuring rapidly changing ambient humidity.
2 It will take some time for a steady RH reading when the
ambient humidity changes.
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DIGITAL MULTIMETER
OPERATING INSTRUCTION
4.21 MEASURING TEMPERATURE
(WITH THERMO-RESISTOR)
4.21.1 This function is used for measuring the ambient
temperature around the meter.
4.21.2 Turn the rotary selector away from the OFF position.
4.21.3 The current ambient temperature will be shown on
the temperature indicator of the LCD.
4.21.4 Press the " / " button to switch between and
measurement.
NOTE:
1 The temperature sensor (thermo-resistor) is placed
inside the front part of the meter and therefore it may
take a longer time to reach thermal balance with the
environment. Furthermore, it takes a longer
intermission time, about 20 seconds, for sampling and
the meter has to be exposed to the environment for a
longer time for accurate reading. Hence it is not
suitable for measuring rapidly changing ambient
temperature.
2 The working temperature of the meter is 0 ~ 40 . As
the temperature sensor is placed inside the meter, this
function is applicable for measuring ambient
temperature between 0 and 40 .
3 If exposed to an environment beyond 0 ~ 40 , the
meter may show a wider range of temperature
measurement, but the accuracy cannot be ensured
and damage to the meter may be caused.
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(1 pages)
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