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IEC 61672, class 1
SOUND LEVEL METER
Model : SL-4022
OPERATION MANUAL
Your
purchase
SOUND
LEVEL
marks a step forward for
you
into
the
precision measurement.
Although this METER is a
complex
and
instrument,
structure will allow many
years of use if proper
operating techniques are
developed.
Please
the following instructions
carefully and always keep
this manual within easy
reach.
of
this
METER
field
of
delicate
its
durable
read
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Related Manuals for Lutron Electronics SL-4022
Summary of Contents for Lutron Electronics SL-4022
- Page 1 IEC 61672, class 1 SOUND LEVEL METER Model : SL-4022 Your purchase this SOUND LEVEL METER marks a step forward for into field precision measurement. Although this METER is a complex delicate instrument, durable structure will allow many years of use if proper operating techniques are developed.
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Page 2: Table Of Contents
TABLE OF CONTENTS 1. FEATURES............1 2. SPECIFICATIONS..........1 3. FRONT PANEL DESCRIPTION.........4 3-1 Electric condenser microphone......4 3-2 Display............4 3-3 Time Weighting ( Fast/Slow ) selector..... 4 3-4 Max. hold & Instant display selector....4 3-5 Calibration VR (Accuracy adjust VR)....4 3-6 Reset button for Max. hold function....4 3-7 A/C weighting selector........ -
Page 3: Features
1. FEATURES Large LCD display, easy to read. Frequency weighting networks ( A & C weighting ) & Time weighting ( Fast/Slow ) are designed to meet the IEC 61672 Class 1. AC output for system expansion. Build in CALIBRATION VR on front panel. Changeable condenser microphone for high accuracy &... - Page 4 Accuracy Frequency weighting ( 31.5 Hz to 16 KHz ) (23± 5 meet IEC 61672 Class 1, calibrating input ℃ signal on 94 dB, then the accuracy of A/C weighting is specified as following : 31.5 Hz - ± 2.0 dB, 63 Hz - ± 1.5 dB, 125 Hz - ±...
- Page 5 Time Fast - t= 200 ms, Slow - t = 500 ms, Weighting * "Fast" range is simulated the (Fast & Slow) human ear response time. * "Slow" range is easy to get the avg. values of vibration sound level. * The "Fast"...
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Page 6: Front Panel Description
3. FRONT PANEL DESCRIPTION Fig. 1 3-1 Electric condenser microphone 3-2 Display 3-3 Time Weighting ( Fast/Slow ) selector 3-4 Max. hold & Instant display selector 3-5 Calibration VR (Accuracy adjust VR) 3-6 Reset button for Max. hold function 3-7 A/C weighting selector 3-8 Signal output terminal 3-9 Range selector 3-10 Power off/On/Internal calibration selector... -
Page 7: Measuring Procedure
4. MEASURING PROCEDURE 1) Slide the " Power off/On selector " ( 3-10, Fig 1 ) to the " On " position. 0 = Off, 1 = On 2) For the instant display reading, slide the " Max. hold & Instant display selector " ( 3-4, Fig. 1 ) to the " Instant "... -
Page 8: Measuring Consideration
5) According on various measuring sound source, select the " Time weighting selector " ( 3-3, Fig. 1 ) to " F " or " S " position. Typically select the " Time weighting selector " to " F " position. 6) Hold the instrument in hand and point the microphone at measured noise source, the sound level will be displayed on "dB"... -
Page 9: Signal Output
3) Please don't keep or operate the instrument at high temperature & humidity environment for a long period. 4) Keep microphone dry & avoid serious vibration. 5) For general application of sound dB measurement, we recommend select the panel switch to the following position : 3-3 Time Weighting ( Fast/Slow ) selector Select to "... -
Page 10: Replacement Of Battery
7. REPLACEMENT OF BATTERY 1) When the left corner of LCD display show " BAT ", it is necessary to replace the battery. However, in-spec. measurement may still be made for several hours after " Low battery indicator " appears before the instrument become inaccurate. - Page 11 4) Slide the " A/C weighting selector " ( 3-7, Fig. 1 ) to " A weighting " position. 5) Carefully adjust the " Calibration VR " ( 3-5, Fig. 1 ) with " - " screw driver (include accessory ), until the display read within "...
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Page 12: Frequency Weighting Characteristics Of A & Cnetworks
Tolerance Charac. ref. continuous ( IEC 61672 Class 1 ) signal F ( Fast ) - 1.0 dB + 1.0 dB, S ( Slow ) - 4.1 dB ± 1.0 dB * Test under signal on 1,000 Hz/94 dB. 0703-SL-4022...