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1.0 OBJECTIVE
To describe the procedure for operation and cleaning of platform balance (Sartorious combics 1-Maximum capacity: 300 kg & least count: 10 gm.)
2.0 SCOPE
This procedure is applicable for operation and cleaning of platform balance used in Warehouse.
3.0 RESPONSIBILITY
3.1 Operator shall be responsible for operation and cleaning of platform balance as per laid down procedure.
3.2 Warehouse officer shall be responsible for training, execution and monitoring the procedure.
3.3 Head of Warehouse shall be responsible for effective implementation of procedure.
4.0 ACCOUNTABILITY
4.1 Manager, Warehouse.
5.0 PRECAUTIONS
5.1 Operate the balance in the range of 10 kg to 56 kg of the balance. Performance check must be done to cover maximum capacity of the balance, if container weight more than 56 kg.
5.2 Ensure the balance is leveled and the air bubble is centered within the circle on the level indicator.
5.3 Ensure that the standard weights, which are being used for performance check and calibration, are calibrated and calibration certificate along with validity of calibration is available.
5.4 Use hand gloves to hold standard weights during performance check and calibration of balance. Fingerprint must be wiped off before using and storing the stone.
5.5 Ensure balance is clean before and after use, including its surrounding area.
5.6 Check due date of calibration before daily performance check and ensure calibration of balance as per frequency.
5.7 Being delicate and sensitive equipment handle with care, gently keep the articles to be weighed on the weighing platform.
6.0 PROCEDURE
6.1 Daily Performance Check of platform balance
6.1.1 Concerned Warehouse officer shall perform daily performance check of balance prior to start weighing activity.
6.1.2 During performance check in the log sheet, hand written acceptance limit calculation shall be verified by another Warehouse officer.
6.1.3 During calibration/performance check, acceptance limit if found out of specification, WH officer raise deviation note to QA for further action.
6.1.4 Write down the Bubble Point status and Next calibration due date in remarks column of the daily performance check log book. If it is OK, proceed further; otherwise adjust the level by screwing the leveling screws.
6.1.5 Wear hand gloves to take 5 kg, 10 kg and 20 kg certified stones and clean them carefully with a clean dry cloth.
6.1.6 Place the standard weights at the centre of the weighing pan to check performance of balance for specified weight of 10kg and record the observed weight in the logbook ‘Daily Performance Check of Platform Balance’ (FRM No: FWH/020).Then carry out the same procedure for performance check of specified weights 35 kg and 55 kg by using required stones.
6.1.7 The tolerance limit: ± 0.1% to that of specific weight.
6.1.8 The performance check of balance shall be done at the beginning of each working day. However, on the holydays, if balance is used, its performance checking must be done prior to use.
6.1.9 The performance check shall be valid up to working hours if the balance is not powered off within this period. In case of power failure ensure that performance of balance is checked again and documented.
6.1.10 Before starting to take weighing of materials in the balance, warehouse officer shall ensure that container weight within the working range (10 to 56 kg), if any time containers weight is found more than 56 kg, then the performance check must be done and documented to cover the maximum capacity of the balance, before weighing the containers.
6.2 Operation of platform balance
6.2.1 Place the bag/container at the center of the weighing pan and record the weight.
6.2.2 Remove the weigh bag /container from balance.
6.2.3 After weighing of each material, clean the balance by using clean cloth.
6.2.4 At the end of working hours, switch off the balance first and then switch off the main supply to disconnect the balance.
6.3 Cleaning of platform balance
6.3.1 Concerned officer shall perform daily cleaning of balance prior to start daily performance check and after every operations.
6.3.2 Ensure that the balance is switched ‘off’ before starting cleaning.
6.3.3 Clean the balance platform and surrounding area-using vacuum cleaner.
6.3.4 Take the dry clean cloth and wipe out balance platform and electrical wire.
6.4 Frequency:
6.3.1 Cleaning frequency: Daily before and after use.
6.3.2 Performance Check: Daily
6.3.3 Calibration frequency: Quarterly
