TESTO 816 Manuel utilisateur

Bedienungsanleitung de

Instruction Manual en

testo 816

Sound Level Meter

20 General Information

General Information

Please read this documentation through carefully and familiarise

yourself with the operation of the product before putting it to use.

Keep this document to hand so that you can refer to it when

necessary.

Identification

Symbol Meaning Comments

Warning advice: Warning! Read the warning advice

Serious physical injury could be caused if the carefully and take the

specified precautionary measures are specified precautionary

not taken. measures

Warning advice: Caution! Read the warning advice

Slight physical injury or damage to equipment carefully and take the

could occur if the specified precautionary specified precautionary

measures are not taken. measures

Important Please pay particular

attention.

Key Press the key.

Text, Display contents Text or symbol is shown on

the display.

Taste

21

Contents

Contents

General Information ........................................................20

Contents ........................................................................21

1. Safety Advice..................................................................22

2. Intended Purpose ..........................................................23

3. Product Description ........................................................24

3.1 Display and operating elements ........................................................24

3.2 Supply voltage ..................................................................................24

4. Initial Operation ..............................................................25

4.1 Putting in the battery ........................................................................25

5. Operation ......................................................................25

5.1 Switching on/off ................................................................................25

5.2 Setting the meter ..............................................................................25

5.3 Measuring ........................................................................................29

5.4 Calibration ........................................................................................31

6. Care and Maintenance....................................................32

6.1 Changing the battery ........................................................................32

6.2 Microphone ......................................................................................32

6.3 Meter ................................................................................................32

7. Technical Data ................................................................33

8. Accessories and Spare Parts ..........................................34

9. Measurement Engineering Fundamentals........................35

22 1. Safety Advice

1. Safety Advice

Avoid electrical hazards:

Never use to measure on or near live parts!

Product safety/preserving warranty claims:

Operate the meter only within the parameters specified in the

technical data. Do not use force.

Never store with solvents (e.g. acetone).

Observe maximum storage and transport temperature as well

as operating temperature.

Ensure that liquid does not enter into the microphone.

Open the meter only when this is expressly described in the

Instruction Manual for maintenance purposes.

Carry out only the maintenance and repair work that is

described in the Instruction Manual. Follow the prescribed

steps exactly. For safety reasons, use only original spare parts

from Testo.

Warranty claims will no longer apply if the meter is handled

improperly or force is applied.

Ensure correct disposal:

Dispose of defective rechargeable batteries and spent

batteries at the collection points provided.

Send the meter directly to us at the end of its life cycle. We will

ensure that it is disposed of in an environmentally friendly

manner.

As declared in the certificate of conformity, this product fulfils

the guidelines of 89/336/EEC.

Meter conforms with DIN EN 60651 (IEC 651), Class 2.

23

2. Intended Purpose

2. Intended Purpose

testo 816 is a sound meter with the sound level measurement

ranges 30-80dB, 50-100dB and 80-130dB, automatic range

switchover, two time weightings, two frequency weightings, a

maximum/minimum function, display light and a tripod screw.

Using the calibrator (accessory), the meter can be recalibrated

with the enclosed adjustment screwdriver.

24

3. Product Description

3.1 Display and operating elements

3.2 Supply voltage

Voltage is supplied by a 9V block battery Type 006 P or IEC6F22

or NEDA 1604 (included). If a battery is not inserted, it is possible

to supply voltage via an external mains unit.

3. Product Description

Display

Microphone

On/Off

button

Fast/Slow

button

Light

button

Min/Max

button

A/C

weighting

Level

button

Battery

compartment

(rear)

Calibration screw

8V input

AC/DC output

Tripod thread

25

4. Initial Operation

4.1 Putting in the battery

1Open battery compartment at the back of the instrument.

2Insert 9V block battery. Ensure +/- is correct.

3Close 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:

Function Description Setting options

Time weighting Sets measurement time Fast or Slow

Frequency weighting Sets weighting Aor C

Level Switches over 30 to 80dB

measurement range 50 to100dB

80 to 130dB

30 to 130dB (Auto range)

Hold function Switches on MAX / MIN

Max Hold/Min Hold Function

Light Switches on display light On/Off

4. Initial Operation

26

Setting the time weighting

The measurement time (time weighting) is set by pressing .

SLOW/FAST:

The ranges "Slow" with a time weighting of 1s and "Fast" with a

time weighting of 125ms are available. Incoming sound signals

are integrated in a time period from 1s or 125ms respectively.

When "Fast" is set, the display rate of a reading increases to

approx. 5-6 measurement rates per second. The "Slow" time

weighting is selected for noises whose signals only change slowly

e.g. machines, photocopiers, printers etc. Select the "Fast" mode

to measure sudden changes in sound level (e.g.building

machines).

Setting the frequency weighting

Frequency weighting is set with the button.

A/C:

The frequency weightings "A" and "C" are available. Frequency

weighting A is used for standard sound level measurements. This

weighting corresponds to the sound pressure felt by the human

ear, also referred to as "aurally compensated sound level". If the

low frequency levels of a sound are to be assessed, frequency

weighting C is used. If the displayed value is considerably higher

during the C weighting than during the A weighting, the level of

low frequency noise is high.

5. Operation

27

Setting the measurement range

The measurement range is switched using the button.

Level:

The testo 816 sound level meter covers the range 30 to 130 dB.

The measurement ranges 30 to 80, 50 to 100 and 80 to 130 dB

are available as well as an Auto Range function. The meter is in

the middle measurement range 50 to 100 dB when first switched

on. The measurement range is switched each time to a higher

level by activating the "LEVEL" button: 50...100dB 80...130dB

Auto range. You can switch back into the lowest range 30 to 80

dB from the Auto Range mode.

MAX/MIN - Hold Function

Use the button to activate the Max Hold or Min Hold

function. "Max" appears in the display once the "Max/Min" button

is activated. In this mode, the meter shows the maximum value of

the sound level since the max mode was set. The display is only

updated if a higher value than the previously displayed value is

measured. The meter goes into the Min-Hold mode when the

"Max/Min" button is activated again. "Min" appears in the display.

The display is only updated if the sound level is below the

displayed value. Max/Min flashes in the display if the "Max/ Min"

button is activated again. The current value is displayed and the

maximum or minimum value is stored in this mode. The maximum

or minimum value is displayed by again activating the "Max Min"

button. The "Max Min" button must be kept pressed for two

seconds in order to quit the Max Min mode.

The Max-Min mode is cancelled by activating the Level,

Fast/Slow or A/C button.

5. Operation

28

Switching light on/off

The display light is switched on by pressing the button.

The light is switched off again by pressing the button again.

Auto Off function

When switched on, the meter is in the automatic off mode (Auto

Off Function). The meter switches off automatically after 30

minutes if no button has activated during this time. This function

is symbolised by the clock in the display. You can deactivate this

function by keeping the button pressed when switching on

the meter. A clock symbol then does not appear in the display.

AC/DC output

The testo 816 meter has an AC/DC output with the following

specifications:

AC: 1 V RMS at end-scale deflection

Output impedance approx. 100 Ohm

Output signal through standard 3,5mm jack connector

(see figure below).

Note: If the meter measures in the Auto Range function,

the output signal corresponds to the automatically

selected measurement range.

DC: Output 10mV/dB

Output impedance 1 kOhm

Output signal through standard 3.5mm jack connector

(see Figure below).

5. Operation

AC signal Earth

DC signal

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