STANDARD OPERATING PROCEDURE OPERATING AND MAINTENANCE OF HUMIDITY CHAMBERS

STANDARD OPERATING PROCEDURE

SUBJECT :                     OPERATING AND MAINTENANCE OF   HUMIDITY CHAMBERS

DEPARTMENT           : QA SOP NO.                      : Page No                       : Effective Date             : Next Review                : SOP REVISION           :

1.0       OBJECTIVE:

To provide guidelines for Operation & Maintenance of Humidity Chambers.

2.0       POLICY:       

To lay down a procedure for operating and maintenance of humidity chambers.

3.0       PROCEDURE: 

3.1       Before switching on the Humidity Chamber Check for the availability of water in the boiler tank and water level in the feed tank. Check the incoming electric supply of 230 V.

3.2       To start the Chamber

3.2.1    Put on the main switch on the switch board.

3.2.2    Put on the mains on the control panel.

3.2.3    The temperature controller will display temperature.

3.2.4    The humidity controller will display humidity.

3.2.5    The safety controller will display light.

3.2.6    The motor inside the chamber gets ON.

3.2.7    The sonix will display the lights, actual time. All the above should be on when the main switch is ON.

3.2.8    The required temperature is set by pressing F key.

3.2.9    The required humidity is set by pressing F key.

3.2.10  Set the safety controller with the same temperature as the set on the temperature controller. The safety controller will cut off when the mains contactor in case of overshoot or undershoot of temperature by 5

3.2.11  Put on the heating switch on the control panel. Dry heater will ON.

3.2.12  Put on the cooling switch on the control panel. Refrigeration condenser motor will on.

3.2.13  Put on the humidity switch on the control panel. The boiler heater will ON.

3.2.14  After some time the set temperature and humidity will be attained and the chamber will function.

3.2.15  Load the samples in shelves as and when required.

3.2.16  Check the contents in the chamber through the observation door regularly.

3.2.17  When drawing the samples switch off the chamber.

3.2.18  The memory stores the record of temperature and humidity and the print out is printed once a month and filed for record and information about the conditions.

3.3       General Instructions & Maintenance :

3.3.1    Ensure proper earthing.

3.3.2    Ensure proper supply of water.

3.3.3    Ensure that all portholes and doors are closed while running.

3.3.4    Do not change the internal parameters of the controller, which might change the calibration.

3.3.5    Clean the chamber from outside regularly.

3.3.6    Clean the boiler tank, boiler heater and reservoir tank once a month.

3.3.7    Clean the PT 100 sensor tip with the help of a tissue paper once in 2 months.

4.0       FREQUENCY:  As and when required.

5.0       RESPONSIBILITY:  Executive Q. A.

6.0       REVIEW GUIDE: Log register.

7.0       ANNEXURE: -------

8.0       SOPs DISTRIBUTION:

            This SOP shall be distributed to following Departments:

Name of the Department	Master Copy	Circulatory Copy
QA/QC	√	√
Production	x	x
Warehouse	x	x
General	x	x
Maintenance	x	x