To design a Standard Operating Procedure that describes the procedure for the operation sound level meter.
2.0 SCOPE
This Standard Operating Procedure (SOP) is applicable to the operation, of the sound level meter for Animal House Facility.
3.0 RESPONSIBILITY
3.1 All personnel in the Pharmacology Department shall be responsible for the implementation and compliance with the SOP.
3.2 Head/Designees/Scientists/Study Directors of the laboratory shall be responsible to ensure the implementation and compliance with the SOP.
4.0 DISTRIBUTION
4.1 The Quality Assurance department is responsible for keeping SOP ‘Master Copy’ approved by the Quality Assurance Head.
4.2 The copy of ‘Control Copy’ of SOP is being distributed in the AHF department and placed near related Equipment/ Instrument as Display Copy.
5.0 DEFINITION(S)
5.1 Definition(s)
5.1.1 A Sound Level Meter is a hand-held device fitted with a microphone that allows you to measure the sound pressure level and acoustic intensity.
6. 0 ABBREVIATION(S)
6.1 Abbreviation(s)
6.1.1 SOP : Standard Operating Procedure
6.1.2 dB : Decibel
6.1.3 LCD : Liquid Crystal Display
6.1.4 AHF : Animal House Facility
7.0 PROCEDURE
7.1 Introduction
7.1.1 The Sound Level Meter measures the sound level in decibels. It can be used for activities such as:
7.1.1.1 Environmental noise studies
7.1.1.2 Sound level comparisons
7.1.1.3 Investigating room acoustics
7.1.1.4 Sound isolation modeling
7.1.1.5 Sound propagation modeling
7.2 Equipment description
7.2.1 Sound Level Meter
7.2.2 LCD display and electric condenser microphone
7.2.3 9V battery
7.3 Operating procedure
7.3.1 Slide the “Power ON/OFF/Hold switch” to the “1 " position will power on the meter.” 1 " = Power ON.” 0 " = Power OFF.
7.3.2 Determine the proper measuring range by selecting the “Range switch “to minimize the tolerance of readout. When the left corner of the LCD shows" " (Range upper / lower indicator), it shows the dB range selection is upper or lower setting. Slide range switch to other range for measuring.
7.3.3 Hold the instrument in hand and point the microphone at the measured noise source, the sound level will be displayed on the “dB “(decibel) unit.
7.3.4 During the measurement, if slide the “Power ON/OFF/Hold switch” to the “Hold “position will freeze the display value. If slide the “Power ON/OFF/Hold switch” to the “1 " position. Then the display will make the measurement continually.
8.0 PRECAUTIONS
8.1.1 All PPEs like an apron, gloves, mask, head caps, and shoe cover should be worn before using the instrument.
8.1.2 Press Keys softly.
8.1.3 Clean the equipment with a dry piece of robe or a lightly moistened one, do not use organic solutions.
8.1.4 Never use abrasive products or dissolvent.
8.1.5 Never pour water or liquids on the equipment.
8.1.6 When the left corner of the LCD display shows “BAT ", it indicates a normal battery output of less than 6.5 V - 7.5 V. It is necessary to replace the battery. However, in-spec. measurement may still be made for several hours after the LOW BATTERY INDICATOR appears before the instrument become inaccurate.
9.0 REFERENCES
9.1 Reference
9.1.1 Refer to the Lutron model sound level meter operating manual.
END OF THE DOCUMENT
You may like to read these links:
1. List of In-vivo laboratory Vendors (Capex)
2. List of SOPs and Documents for CPCSEA
3. List of All SOPs and Documents for Laboratory Instruments and Equipment
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