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testo sound level calibrator
0554 0452
Instruction manual
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1. 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.
2. Product Description
Function and battery
status display LED
On/Off and level
switch
Battery compartment
(rear)
½ inch microphone
adapter
1 inch opening to
insert microphone
(once adapter is
removed)
Platzhalter
Schallpegel
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3. Safety Advice
Product safety/preserving warranty
claims:
Operate only within the parameters
specified. Do not use force.
Do not expose to electromagnetic
radiation (e.g. microwaves, induction
heating), static charge, heat or strong
fluctuations in temperature.
Never store with solvents (e.g. acetone).
Ensure that liquid does not enter into
the calibrator.
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The product should only be opened if
expressly described in the
documentation for maintenance and
repair purposes.
Ensure correct disposal:
Dispose of defective rechargeable
batteries and spent batteries at the
collection points provided.
Send the product directly to us at the
end of its life cycle. We will ensure that it
is disposed of in an environmentally
friendly manner.
4. Intended Purpose
The sound level calibrator has been
designed to calibrate sound level meters.
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5. Technical data
Feature Values
Sound pressure level 94dB/114dB
in reference conditions,
switchable
Accuracy: Sound pressure level ±0.5dB
Frequency 1000Hz ±2%
Reference conditions
- Temperature +23°C (74°F)
- Relative humidity 50%
- Air pressure 1013hPa
Operating conditions
- Temperature 0 to +40°C (32 to 140°F)
- Relative humidity 10 to 90%RH
- Air pressure 650 to 1080hPa
(to 2000m amsl)
Dependency coefficients
- Pressure dependency 0.005dB/hPa
- Temperature dependency 0.005dB/°C
- Humidity dependency 0.005dB/%RH
Distortion factor <3%
Storage and transport
conditions
- Temperature -10 to 50°C (14 to 122°F)
- Relative humidity 0 to 70%RH
Battery 9V block (6F22)
Battery life Approx. 40 hours
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Feature Values
Battery test Internal circuit for
permanent battery status
monitoring. Calibrator does
not emit signal if the LED
changes from green to red,
voltage is then too low.
Dimensions in mm (lxbxh) 113 x 63 x 44
Weight Approx. 170g (incl. battery)
EC guideline 89/336/EEC
6. Initial Operation
1
Open battery compartment.
2
Insert battery, observe +/-.
3
Close battery compartment.
- The instrument is ready to operate.
- The instrument shows its functionality
by the ”Power ON” LED and a beep
sound after it is switched on.
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7. Operation
1
Attach calibrator to microphone with a
rotary motion. Use the corresponding
adapter for instruments with a ½ inch
microphone.
2
Switch on instrument and set the
measurement range from 80 to 130 dB.
3
Set time weighting (Fast/Slow) and
frequency weighting (dB(A),dB(C)) to the
values in which the instrument is usually
operated.
4
Set calibrator level switch to 94dB.
The instrument should show a value of
94dB minus the height offset value, see
table.
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Height offset values
Height in m amsl Pressure p in mbar Offset in dB
0-250 1013-984 0.0
>250-850 983-915 -0.1
>850-1450 914-853 -0.2
>1450-2000 852-795 -0.3
Example:
Height above mean sea level = 500
Target value = 94dB - 0.1dB = 93.9 dB
If the value displayed deviates from the
target value, the instrument should be
recalibrated.
Using a small screwdriver, turn the
instrument calibration screw until the
correct target value is displayed.
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To check, set the calibrator level switch
to 114dB.
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The instrument should show a value of
114dB minus the height offset value.
If the value displayed deviates by more
than ±0.2dB from the target value and it
also cannot be reduced by recalibration,
please contact your dealer or Testo
Customer Service. You will find contact
details at
www.testo.com
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8. Care and Maintenance
Changing the battery
If the battery voltage needed to operate
the calibrator is insufficient, the control
lamp on the front lights up red.
1
Open battery compartment.
2
Insert battery (9V block - 6 F 22),
observe +/-.
3
Close battery compartment.
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9. Accessories
Name Part no.
Calibrator 0554 0452
(incl. battery, case
and ½ inch adapter)
9V rechargeable battery 0515 0025
Recharger 0554 0025
for external recharging
of rechargeable batteries
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testo AG
Postfach 11 40, 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
0973.0800/01/C/wh/20.07.2004
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