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Follow the steps below to measure AC voltages with the LPF function:
• Turn the multimeter on and select “V
” mode. “AC” and “V” will appear on the display.
• Press the “LPF” button to enable the low-pass filter. The LPF symbol will appear on the display. Automatic range
selection is disabled and the measurement range is set to 600.0 V. The measurement range can be selected manu-
ally with the “RANGE” button.
• Plug the red lead into the V terminal (K) and the black lead into the COM terminal (I).
• Connect the two measuring probes in parallel to the object that you want to measure (e.g. generator or circuit).
• To disable this mode, press the “LPF” button. “LPF” will disappear from the display and the automatic range selec-
tion will be re-enabled.
• After measuring, remove the test leads from the measured object and turn the multimeter off.
The LPF function is only available in the normal AC-V measuring range.
g) LED light
When the DMM is switched on, the side-mounted light button (L) can be used to switch the LED light on and off.
Hold down the button for approximately 2 seconds to switch the light on/off. The light will stay switched on until it is
switched off using the light button (L), or until the multimeter is switched off with the rotary dial (“OFF” position) or the
automatic power-off feature.
11. Cleaning and maintenance
a) General
The multimeter should be calibrated once a year to ensure that measurements remain accurate.
The multimeter does not need to be serviced (apart from occasional cleaning and replacing the battery).
Refer to the following sections for instructions on how to change the battery.
Regularly check the device and test leads for signs of damage.
b) Cleaning
Always observe the following safety information before cleaning the device:
Opening covers on the product or removing parts that cannot be removed by hand may expose
voltage-carrying components.
Before cleaning or servicing the multimeter, disconnect all cables from the multimeter and all
measured objects. Switch off the multimeter.
Do not use abrasive detergents, petrol, alcohol or other similar chemicals to clean the device. These may corrode
the surface of the multimeter. In addition, the vapours emitted by these substances are explosive and harmful to your
health. Do not use sharp-edged tools, screwdrivers or metal brushes to clean the device.
