5
NCV NON-CONTACT ELECTRIC FIELD MEASUREMENT
•
If you wish to measure
whether there is AC voltage
or electromagnetic field,
place the front end of the
clamp head 8~15mm close
to the test piece.
•
Analogue quantity of
inductive AC voltage is
about ≤ critical voltage
100V, display “EF”, > critical
voltage 100V, prompted by
buzzing.
OTHER FUNCTIONS
•
Automatic power-off: when measuring, if the rotary button has not been used in 15
minutes, the instrument will automatically power off to save energy.
•
In automatic power-off mode, turn the rotary button to
OFF
and restart the
instrument or press the
REL
button.
•
To turn off the automatic power-off function, press and hold the
REL
key, then turn
on the instrument and you will hear 5 buzzes, which means the automatic power-
off function is cancelled.
•
Turn off and restart the machine and the automatic power-off function will be
recovered.
•
The buzzer will send out five warnings, one minute before automatic power-off.
•
A long buzz will be heard before powering off. When the automatic power-off
function is cancelled, you will hear five continuous warnings every 15 minutes.
Buzzer
•
Press any key or rotate the function switch.
•
If the function is valid, the buzzer will beep once.
•
When measuring current out of range, the buzzer will beep to warn it is out of
range (function status as below)
•
200A gear: current > maximum range, buzzer beeps.
Detecting Low Voltage
•
When the battery is lower than 2.5V, the low battery symbol appears.
•
Measurements may not be as accurate once this symbol shows, therefore it is
advisable to replace the battery as soon as possible.
•
If it is lower than 2.2V, only the battery under voltage symbol shows after starting
up and the instrument will not work.
•
When the battery supply voltage lowers to 2.6V, the LCD backlight will be in weak
or non-start state, but measurement functions will still work.
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Содержание 72-3500
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