13
FREQUENCY
•
Insert the red test pen into the “Hz” jack and the black
test pen into the “COM” jack.
•
Push the range switch to the measurement gear “Hz”
and connect the test pen in parallel with the signal
source to be measured.
•
Directly read out the measured frequency value from
the display.
Note:
•
It is required to meet the input range a when
measuring: ≤100kHz 100mVrms≤a≤20Vrms.
•
Do not input frequency higher than 30Vrms, as it may
cause personal injury.
•
After completing all measurement operations,
disconnect the test pen from the measured circuit.
TEMPERATURE MEASUREMENT
(72-3099 only)
•
Push the range switch to “°C °F” gear and the LCD will display “OL”, the short-
circuit test pen displays the room temperature.
•
Insert the temperature K type socket into the corresponding hole.
•
Place the temperature probe to detect the measured surface and several
seconds later, directly read out the measured Celsius
temperature value from the LCD.
•
Press
SELECT
to select Fahrenheit temperature
measurement.
Note:
•
The meter should not be operated in a place with
ambient temperature beyond the range 18°C to 28°C
as results can be affected, particularly evident in a low
temperature environment.
•
Do not input voltage higher than 30V DC or AC, as it
may cause personal injury.
•
After completing all measurement operations, remove
the temperature probe.
NON-CONTACT AC VOLTAGE SENSING NCV
•
In order to sense whether there is AC voltage or
electromagnetic field in this space, place the front end
of the clamp meter near to the conductor to be tested in
order to sense detection (distance <10mm).
•
When the electric field voltage is ≥ 100VAC, the LCD
will display “-”, which has four levels, “-”, “- -”, “- - -” and
“- - - -” subject to sensing voltage.
•
The buzzer will continue to beep and the LED will flash
a red light.
