To design a Standard Operating Procedure that describes the procedure for operation of lux meter.
2.0 SCOPE
This Standard Operating Procedure (SOP) is applicable for the operation of Lux Meter for AHF.
3.0 RESPONSIBILITY
3.1 All personnel in the animal house facility (AHF) shall be responsible for the implementation and compliance with the SOP.
3.2 Head/Designees/Scientists/Study Directors working in AHF 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 Lux meter is a device used to measure luminous flux per unit area, equal to one lumen per square meter.
6.0 ABBREVIATION(S)
6.1 Abbreviation(s)
6.1.1 SOP: Standard Operating Procedure
6.1.2 AHF: Animal House Facility
6.1.3 PPE: Personal Protective Equipment
7.0 PROCEDURE
7.1 Introduction
A lux meter is a device for measuring brightness. It precisely measures the intensity with which the brightness appears to the human eye. A lux meter works by using a photocell to capture light. The meter then converts this light to an electrical current. Measuring this current allows the device to calculate the lux value of the light it captured.
7.2 Equipment description
7.2.1 Display
7.2.2 Light sensor
7.2.3 Range switch and ON/OFF switch
7.2.4 Battery
7.3 Operation of lux meter
7.3.1 Switch “ON” the lux meter.
7.3.2 Ensure the initial reading should be “zero”, otherwise adjust the zero by using “Zero offsets”.
7.3.3 Range A: measures 0 to 1999 LUX resolution 1.
7.3.4 Range B: measures 2000 to 19990 LUX resolution 10.
7.3.5 Range C: measures 20000 to 500000 LUX resolution 100.
7.3.6 Slide the switch as per the requirement (A or B or C).
7.3.7 Hold the light sensor facing towards the light. The display will show lux value.
7.3.8 The multiplication of the displayed value with multiplying factor will be the actual lux.
7.4 Monitoring of lux level
7.4.1 Hold the lux meter at a minimum of five locations.
7.4.2 Measure the lux at 1-meter height from ground level.
7.4.3 Record the readings in the lux level monitoring record.
7.4.4 The average lux of all readings will be the lux level in the room.
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 Operating Manual.
END OF THE DOCUMENT
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