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TESTO 816, Instruction Manual

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TESTO 816 Instruction Manual Download Page 5

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.

Summary of Contents for 816

Page 1: ...Bedienungsanleitung de Instruction Manual en testo 816 Sound Level Meter ...

Page 2: ...d 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 Plea...

Page 3: ... 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 ...

Page 4: ...aintenance 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 collec...

Page 5: ...vel 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 ...

Page 6: ... 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 ...

Page 7: ...itches 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 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 MIN Max ...

Page 8: ...nes 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 a...

Page 9: ... 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...

Page 10: ...ction 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 outp...

Page 11: ...consequently serious measurement errors Experiments have shown for example that the body can cause errors of up to 6 dB with frequencies of 400 Hz if a measurement takes place less than one meter away from the person This error is less for other frequencies but a minimum distance should be adhered to Generally it is recommended that the meter is held at least 30 cm even better 50 cm away from the ...

Page 12: ...f the noise source and the wind noise add up together The wind cap does not falsify the measurement result Overmodulation and undermodulation With every measurement cycle the sound level meter checks whether the measured sound level is in the validity range of the respective measurement range Deviations are indicated by Over and Under on the display However the criteria for overmodulation and unde...

Page 13: ...on purposes the calibrator is placed with a rotary motion on the microphone Switch on the sound level meter and set it to the measurement range 50 100 dB time weighting Fast and frequency weighting A The calibrator is then switched on by moving the switch to the middle position 94 dB If the sound level meter deviates from the value shown it can be readjusted using the adjustment screwdriver suppli...

Page 14: ...ble measurement microphone is located in the housing head A function test can be carried out with the calibrator The housing can be cleaned with alcohol isopropanol Please ensure that liquid does not get into the microphone The attached wind cap also protects the microphone from dust and humidity Please contact our service department if the microphone is defect 6 3 Meter testo 816 is maintenance f...

Page 15: ...1 s Slow Accuracy 1 0 dB under reference conditions 94dB at 1kHz Display LCD Digital display 4 digit LCD display 13mm high Resolution 0 1dB Display refresh 0 5s Analog display 50 segment bar graph Resolution 1dB Display refresh 100ms Battery 9V Block 6F 22 Battery life Approx 50 hours alkaline manganese Tripod thread inch Operating temperature 0 to 40 C Operating humidity 10 to 90 RH Storage tempe...

Page 16: ...Hz in dB in dB Class 2 in dB 31 5 39 4 3 0 3 26 0 8 2 16 1 0 2 1 5 8 6 0 0 1 5 500 3 2 0 0 1 5 1000 0 0 1 5 2000 1 2 0 2 2 4000 1 0 0 8 3 8000 1 1 3 0 5 8 Accessories and Spare Parts Name Item no testo 816 sound level meter 0563 8165 incl battery Instruction Manual screwdriver wind cap Calibrator 0554 0452 Wind cap 0193 0816 9V rechargeable battery 0515 0025 Recharger for external recharging of re...

Page 17: ...tions of 0 0002 µbar corresponding to 0 dB the loudest noise which can be heard without pain has a sound pressure level of 635 µbar corresponding to 130 dB This corresponds to a pressure difference of around 3 000 000 fold Since stating the pressure in mbar would result in very long figures logarithmic notation is used and calculation is with level values In this way a level increase of 20 dB corr...

Page 18: ...testo AG Postfach 1140 79849 Lenzkirch Testo Straße 1 79853 Lenzkirch Telefon 07653 681 0 Fax 07653 681 100 E Mail info testo de Internet http www testo com 0973 8160 03 C wh 0 2006 ...

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