Follow
Objective: To establish a standard procedure for calibration of Timer.
Scope: This procedure is applicable for calibration of all Timers in BPL, Track-II.
Responsibility: Engineering Officer shall be responsible to follow the procedure strictly.
Accoutability: Head of Engineering.
Precautions:
1. Concerned personnel should be trained on the SOP.
2. Frequency of Calibration should be checked before starting calibration.
3. Proper documentation should be carried out.
Procedure:
=> Check the Calibration Master Plan (FRM NO.: FQA/041-01) for the schedule of calibration.
=> Check the Calibration certificate of the standard digital Timer. It should be within valid date.
=> Carry out the calibration as per the following procedure:
=> Set a certain Time at the standard digital Timer and the Timer under Calibration.
=> Start both the Timers at the same time.
=> Take the readings from both Timers and compile the data at Instrument Calibration Certificate (FRM No.: FEG/027-01).
=> Compare the readings for any deviation.
=> The acceptance limit is ±2%.
=> If the deviation is out of specified range, rectify the problem and recalibrate.
=> Frequency of calibration shall be followed as per Calibration Master List (FRM No.: FQA/040-01).
=> After completion of calibration, fix the Calibration label sticker (FRM No.: FQA/053-00) on the equipment under calibration.
=> During this process the Engineering & QA representatives shall be present to check the procedure.
