5.7. Decibel measurement
The decibel measurement works as the AC voltage
measurement, but the decibel scale must be read.
For measurements in the AC 15V range of the dB value can be
read directly. If the value is higher than 25dB, use the 60V, 150V
or 600V range and add a fixed sum to the measurement of the
dB value, as indicated below:
ACV 60V range: Add 12dB to the Value
ACV 150V range: Add 20dB to the Value
ACV 600V range: Add 32dB to the Value
6. Maintenance
6.1. Battery replacement
1. For replacement of the batteries, remove the screw of the
battery cover at the rear side of the unit.
2. Replace the exhausted batteries (3x1,5V AAA batteries).
3. Please take care to observe the correct polarity of the
batteries.
4. Replace the battery cover and secure it with the screw
safely.
6.2. Fuse replacement
To avoid electric shock, do not operate your meter until the back
case is in place and fastened securely.
1. Disconnect the test leads from the meter and any item under
test.
2. Open the back case by loosening 4 screws on the back case
using a screw-driver.
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