SOP for Cleaning and Operating of Digital Timer

Purpose: To establish a standard operating procedure for cleaning and operating of Digital Timer.

Scope: This standard operating procedure is applicable for cleaning and operating of Digital Timer.

Responsibility:

• Head of Department is responsible for preparation and implementation of this procedure.
• Quality Assurance is responsible for review, approval, control, and release of this procedure.
• The department head is responsible for keeping instruments in good working condition.
• The maintenance head is responsible for maintaining the instrument.

Accountability:

• Quality Manager

Procedure:

Instrument Introduction:

• Instrument Name: Digital Timer
• Instrument ID Number: Mention the ID number as per your internal quality procedure.
• Instrument capacity: Mention capacity as per your instrument specification.

Cleaning:

• Clean the external surface of the Timer with the help of a lint-free dry cloth.

Operation of instrument:

Time/ Calendar Display Mode:

• Normal time display mode- Time display in hours.
• Calendar display in month, and date- holding down S3.
• Alarm time display – holding down S1.
• Alarm on – holding down S1 & S3.
• Chime on (all day-flag on/off (all day- flag off) – Keep S1 pressed and press S2 for ON/OFF selection.

Time and Calendar Setting:

• Press S2 three times.
• Select the flashing digit(s) to be set by pressing S1 and then advance figure by pressing S3 (fast advance by holding down S3 for more than 2 seconds). Second is followed by a minute, then hour, then followed by a date, then a month, and finally the day.
• Choose 12/24 hour cycle option while setting the normal time hour by shifting the figure to “A”/ “p” for 12-hour mode or “H” for a 24-hour clock.
• Press S2 once again to time display mode when the setting is finished.

Alarm Setting:

• Press S2 twice.
• To change the flashing figure, first select it using the S1 key, and advance by pressing S3 icon.
• Fast advance by holding down S3 for more than 2 seconds.
• Press S2 once again to time display mode when alarm setting is finished.

Stop -Watch Mode:

• This mode counts in 1/100th of a second interval for the first 30 minutes of timing (29 min. 59 sec.) and then in 1-second increment up to a maximum of 24 hours ( 23hrs. 59 min. 59 sec.)
• To activate stop-watch mode – press S2 once in time display mode.
• Start/ Stop – press S3 once.
• Reset- Press S1 while stop counting.
• Split (LAP) time- start counting by pressing S3.
• Press S1 to “freeze” elapsed time display while counting, and S1 again to resume timing.
• Stop counting by S3, and reset the stop-watch by S1.
• Press S2 to Normal mode.

Battery Replacement:

• When readout becomes dim or no longer displays, it is time to replace the battery- replace it with AG 13/LR44 or an equivalent battery type. (Battery door available at the backside.)

Precautions:

• Always keep the timer in a dry place and safe position.

Maintenance:

• Not applicable

Calibration:

• Minimum once in year

Records:

• Calibration records

Abbreviation:

• SOP: Standard operating procedure
• ID: Identification

Revision History:

New introduction	Revision no.	Issue No.	Effective date	Next review due date