BK Precision CAL73 Manual
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BK Precision CAL73 Manual

Sound level calibrator
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1.800.561.8187
CONTENTS
Title
1. Safety Information................................ 1
Environment Conditions........................................ 1
Maintenance & Clearing........................................ 1
Safety symbols................................................... 1
2. Description ......................................... 2
3. Features...............................................2
4. Specifications ....................................... 2
Output sound pressure levels................................. 2
Output frequency................................................. 2
Reference conditions............................................ 2
Influence of ambient conditions.............................. 2
Total Harmonic Distortion (THD)..............................
2
Accuracy of sound pressure level........................... 2
Power............................................................... 2
Battery life..........................................................2
Battery test ........................................................ 3
Dimensions........................................................ 3
Weight............................................................... 3
Ambient conditions.............................................. 3
Storage temperature & humidity.............................. 3
Accessories........................................................ 3
5. Nomenclature And Function................... 4
6. Operating Preparation........................... 5
7. Calibration Procedure............................ 5
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Summary of Contents for BK Precision CAL73

  • Page 1 CONTENTS Title Page 1. Safety Information………………………….. 1 Environment Conditions…………………………………. 1 Maintenance & Clearing…………………………………. 1 Safety symbols…………………………………………… 1 2. Description ……………….….……………… 2 3. Features……………………..…..…………….2 4. Specifications ………..……..……………….. 2 Output sound pressure levels…………………………... 2 Output frequency…………………………………………. 2 Reference conditions…………………………………….. 2 Influence of ambient conditions………………………… 2 Total Harmonic Distortion (THD)…………………………...

  • Page 2: Safety Information

    Sound Level Calibration 1. Safety Information Read the following safety information carefully before attempting to operate or service the meter. Use the meter only as specified in this manual; otherwise, the protection provided by the meter may be impaired. Environment Conditions §...

  • Page 3: Features

    Sound Level Calibration 3. Features Conforms to ANSI S1.4-1984 60942-2003 Class 2. Calibration levels of 94dB and 114dB. Fits 1 inc h and 1/2 inch diameter microphone. 4. Specifications Output sound pressure levels: 94dB and 114dB re 20 uPa under reference conditions.

  • Page 4: Dimensions

    Sound Level Calibration Calibrator will not operate when the green LED turns to red, which means that battery voltage has fallen bellow the acceptable range. Dimensions (LxWxH): 4.4 x 2.4 x 1.7inch (113 x 63 x 44mm) Weight: approx. 170g(inc luding battery) Ambient conditions: 0°...

  • Page 5: Nomenclature And Function

    Sound Level Calibration 5. Nomenclature And Functions 94dB 9V BAT TERY NEDA 1604 114dB 6F22 , 006P IEC 60942 Class 2 ANSI S1.40 - 1984 • Power and low battery indicate LED. ‚ Power and output level select switch. ƒ Transducer assembly 1-inch cavity for microphone insertion.

  • Page 6: Operating Preparation

    Sound Level Calibration 6. Operating Preparation (1) Remove battery cover and install a 9V Battery in the battery compartment. (2) To quickly check the operation of the sound level calibrator. Proceed as follows: (a) Turn the power switch from OFF to the 94dB position.
  • Page 7 Sound Level Calibration being calibrated. (4) On the instrument under test, set the level range control to the range having 100dB as its upper limit if 94dB was selected on the sound level calibrator. If 114dB was selected on the sound level calibrator, choose a range with on upper limit of 120dB.

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