Testo testo 816 Sound level-measuring apparatus, Noise-measuring apparatus 0563 8165 User Manual

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4. Initial Operation

4.1 Putting in the battery

1 Open battery compartment at the back of the instrument.
2 Insert 9V block battery. Ensure +/- is correct.
3 Close battery compartment.

5. Operation

5.1 Switching on/off

Switch on meter: press 

.

- All segments light up briefly and the meter switches to  the

measurement mode (measurement range 50 - 100dB).
Switch off meter: press

.

5.2 Setting the meter

The following functions can be set:

Time weighting

Sets measurement time

Fast or Slow

Frequency weighting

Sets weighting 

A or C

Level

Switches over 

30 to 80dB

measurement range

50 to100dB

80 to 130dB

30 to 130dB (Auto range)

Hold function

Switches on

Max Hold/Min Hold Function

Light

Switches on display light

On/Off

4. Initial Operation

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