Calibration of Humidity Chamber
SOP on Calibration of Humidity Chamber
1.0 PURPOSE
The purpose of the standard operating procedure is to provide guidelines for calibration of Humidity Chamber.
2.0 SCOPE
The scope of this standard operating procedure includes calibration of Humidity Chamber.
3.0 RESPONSIBILITY
3.1 Section Incharge
3.2 Technical Manager
3.3 Q.A. Manager
4.0 PROCEDURE
4.1 Switch on the instrument.
4.2 Ensure that the temperature indicator/controller is in working condition i.e. the set temperature should be maintained/retained properly.
4.3 Ensure that the door of incubator is properly closed and does not loosen during operation.
4.4 Ascertain and set the points/points at which calibration is required.
4.5 Switch on the humidity chamber and allow it to reach the set point temperature.
4.6 Apparatus Required: Reference thermometer with sensor and digital temperature indicator.
4.7 CALIBRATION:
4.7.1 Insert the sensor of the reference/calibrator sensor (PRT) in the humidity chamber as near as possible to the sensing tip or sensor of the temperature controller/indicator of the humidity chamber.
4.7.2 When the temperature is stable note down the temperature reading as indicated by on the humidity chamber and the reference indicator simultaneously.
4.7.3 Take at least three to four readings for better accuracy and reproducibility.
4.7.4 Set the next point and record the temperature readings accordingly.
4.7.4 Correlate the readings observed with the reference standards and apply corrections, if necessary.
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