Kimo CAL 200 Manuale utente
CAL 200
ACOUSTIC CALIBRATOR
DESCRIPTION
The acoustic calibrator is the key accessory to calibrate acoustic measurement systems.
The acoustic source is defined in pressure level and in transmitting frequency, it corresponds to the
current class 2 standards : NF EN 0942$: 2003 and CEI 0942$: 2003.
This calibrator is designed to remain compatible with microphones of different diameters. See
technical specifications.
Calibration of a sound level meter is done in pressure in the cavity of the calibrator. The sound level
meter being generally used in free field, observe the free field correction term indicated in its user
manual. It is the same in case of diffuse field using.
Green light : calibration is ready
Red light : wait
Button : launch
calibration
Microphone and adapter ring coupler
Kimo CAL 200 Sound Level Meter Acoustic Calibrator
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➢ Insert the adapter ring according to microphone diameter of the device to calibrate.
Ensure that the ring is correctly positionned, it has to come to a stop down of the
calibrator housing.
➢ Put the calibrator on the microphone, until the microphone comes to a stop down
of the ring. Perform this move slowly and smoothly so as not to damage the
microphone. Prefer to put vertically the soud level meter and the microphone.
➢ Press the button situated in front face of the calibrator. A red light flashes.
➢ Wait for a while, red light becomes green meaning that the level of acoustic
pressure of the calibrator has a good value : 94.0 dB
➢ Begin the calibration process of the device as specified in its user manual.
➢ Calibrator automatically stops the transmission of the level of acoustic pressure
after about one minute.
CALIBRATION
During calibration :
If the light turns red and flashes, environmental conditions are not respected :
● Ambient noise is too important or
●Shocks given involuntarily
Wait for the green light before resume the calibration process, it is possible to launch again
pressing the button.
If the light turns red whitout flashing and does not turn to green, batteries are defective and shall
be replaced.
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CHANGE BATTERIES
RECOMMENDATIONS
This calibrator is an accurate device that requires care when handling and storing it.
Do not expose to shock or to extreme and repeated environmental constraints (Temperature –
Hygrometry)
Store it in its storage space and remove batteries in case of long period of inactivity.
Despite these recommendations, grader stays an extremly reliable device, easy-to-use and with
few maintenance :
Simply replace batteries when they are worm and make a regular checking.
Batteries must be changed when :
●The light turns red without flashing.
●The light does not turn on at all.
MAINTENANCE
CAL200 calibrator is linked to national standars. As part of quality insurance standards, we
recommend performing an annual checking.
CAL200 is supplied with its user manual, two alkaline batteries and an adapter ring for ½ inch
microphone.
To change batteries :
➢ Remove the front part at the back of the device pressing strongly
the rubber button. Front part is released slightly. Fold it up
completely.
➢ Remove the two old batteries. Insert new 1.5 V AAA -LR03 type
batteries respecting proper polarity.
➢ Put correctly the front part in its slot and close pressing strongly
on it.
SUPPIED WITH...
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Main level of acoustic
pressure
Main frequency
Distortion
Authorization for calibration
Transmission time
Standards
Accuracy
CE mar ing
Compatible microphone
Standard ambient conditions
94 dB ± 0.4 dB
1000 Hz ± 5 Hz
DHT < 3%
Green light
1 minute
NF EN 0942 : 2003 – CEI 0942 : 2003
Class 2
As per to European Directive 89/33 /CEE and Standard product
23 °C – 50% RH – 1013 hPa
TECHNICAL FEATURES
1 inch microphone without adapter (according CEI 1094-4 standard)
½ inch with BC12 ring
10 mm microphone with BC10 ring
3/8 inch microphone with BC38 ring
Other microphones with suitable rings
Operating conditions 0 °C to +40 °C / 25% to 90% RH / 50 hPa at 1080 hPa
Power supply
Autonomy at 20 °C
Storage
Overall dimensions
Weight
2 alkaline batteries – 1,5 V CEI : AAA – LR03 type
More than 1500 calibrations
From 0°C to + 0 °C
Length : 185 mm – Width : 35 mm – Thickness : 31 mm
118 g (with batteries)
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