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94/104/114 dB , 125/250/500/1000 Hz
MULTI FUNCTION SOUND
LEVEL CALIBRATOR
Model : SC-934
Your purchase of this Personal MULTI FUNCTION SOUND
LEVEL CALIBRATORwith marks a step forward for you into
the field of precision measurement.Although this calibrator is
a complex and delicate instrument, its durable structure will
allow many years of use if proper operating
techniques are developed. Please read the
following instructions carefully and always
keep this manual within easy reach.
OPERATION MANUAL
Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529 ,3
mrc@mrclab.com
MRC. 2.23
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Summary of Contents for MRC SC-934
- Page 1 94/104/114 dB , 125/250/500/1000 Hz MULTI FUNCTION SOUND LEVEL CALIBRATOR Model : SC-934 Your purchase of this Personal MULTI FUNCTION SOUND LEVEL CALIBRATORwith marks a step forward for you into the field of precision measurement.Although this calibrator is a complex and delicate instrument, its durable structure will allow many years of use if proper operating techniques are developed.
- Page 2 TABLE OF CONTENTS 1. FEATURES...................... 2. SPECIFICATIONS................... 3. FRONT PANEL DESCRIPTIONS..............4. CALIBRATION....................5. BATTERY CHECK................... 6. REPLACEMENT of BATTERIES..............
- Page 3 1. FEATURES IEC 60942 2017 CLASS 2 / ANSI S1.40 2006 CLASS 2 Multi Frequency Multi level output Standard 94 dB,104 dB,114 dB / 1KHz Sound calibrator, useful to calibrate another " Sound Level Meter " precisely. 2. SPECIFICATIONS 1 KHz/ 500Hz/ 250Hz/ 125Hz < 1.7% @ 23± 5 ℃ Frequency 94 dB ,104 dB , 114 dB ( 1 KHz ) Sound Pressure...
- Page 4 3. FRONT PANEL DESCRIPTION Fig. 1 3-1 Power button 3-8 104 dB Indicator 3-2 Level select button 3-9 114 dB Indicator 3-3 Frequency select button 3-10 1 KHz Indicator 3-4 1 " Mic Couple Section 3-11 500 Hz Indicator 3-5 1/4" Mic. Adapter 3-12 250 Hz Indicator 3-6 1/2"...
- Page 5 4. CALIBRATION 1) Press the " ON/OFF button " ( 3-1, Fig. 1 ) to power on the sound level calibrator. 2) If the calibrated " SOUND LEVEL METER " used the 1/2" microphone, then on the " Couple Section " (3-4, Fig. 1) should install the "...
- Page 6 6) Adjust the calibration VR ( knob ) of the calibrated " SOUND LEVEL METER " until that the display reach to 94.0 dB exactly or the meter pointer points to the " CAL " mark. ( Refer Fig. 2 ) Fig.
- Page 7 6. REPLACEMENT of BATTERY 1) Take away the " Battery Cover " (3-15, Fig. 1). Please refer to Fig. 1. 2) Remove the old batteries & replace the new 9V batteries. 3) Make sure the battery is installed to the right position & connected to the proper polarization with the battery snap.
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