Auto Power Off - KPS PA50 MINI Manual De Funcionamiento

4.6 Backlight and clamp lighting bulb
• Press the "HOLD/B.L" button for two or more seconds to switch on the back
light if the light in the environment is too dim for taking reading, which will
last for 30 seconds.
• During the back light is working, press the "HOLD/B.L" button for two or
more seconds, it will be turned off.
• At the current range, when the back light is switched on, the clamp lighting
bulb will be turned on at the same time.
Note:
LED, which requires a larger working current, is the main source of back light.
Although the meter is equipped with a timer set at 30 seconds (i.e. the back
light will be off automatically after 30 seconds), frequent use of the back light
will shorten the life of the batteries. Therefore, do not use the back light unless
necessary.
When the battery voltage is ≤3.7V, the symbol "
on the LCD. When the back light is on, even if the batter is ≥3.7V, the "
may appear because of its large working current which will cause the voltage
to drop. (The accuracy of the measurement cannot be assured when the "
" symbol appears.) In this case, you need not replace the batteries yet.
Normally, the batteries can last until the "
not being used.

4.7 Auto power off

• If there is no any operation within any thirty minutes after power is on, meter
will auto power off.
• After auto power off, if press the "SEL" button, meter will recover the working
condition.
• Press both power on switch and one of " MAX/MIN" or "RAM" or "Hz/%"
button at the same time more than one second for exiting auto power off
function.
4.8 Preparating for measurement
• Switch on the power by turning the rotary selector. If the battery voltage is
lower than 3.7V, the "
replaced.
• The " " symbol shows that the input voltage or current should not exceed
KPS-PA50 MINI • Digital clamp meter
" appears when the back light is
" symbol will appear and the batteries should be
40
" (battery low) will appear
",