Alternatively purchase a new thermometer.
Thermometer calibration procedure australia.
Accountability head quality control procedure.
If the reference thermometer is not equilibrating to 32 f 0 c slush ice bath start over with a clean beaker of crushed ice and distilled water.
Two of the most acceptable methods to check the accuracy of your food thermometers is by boiling water and an ice water slurry.
While thermometers are comparatively simple instruments the consequences of a badly calibrated thermometer can result in freezers being too warm or furnaces not being hot enough.
Ihealth pt3 calibration ihealth thermometer calibration.
Operate the refrigerator as per standard procedure.
If the temperature readings are higher than 1 c or lower than 1 c attach a label to the thermometer showing the date the calibration check was made and the variation from 0 c.
If the temperature is above 32 f 0 c add more crushed ice to the beaker.
Place your thermometer into the container.
Temperature is critical to many processes in a variety of situations.
A digital thermometer calibration procedure.
Objective to describe the calibration procedure for distribution of temperature within the chamber of refrigerator.
The nist reference thermometer should read 32 f 0 c when placed in the slush ice bath.
Boil tap water and pour into a suitable container such a mug or beaker step 2.
If neither an industrial black body or a comparator cup are available however you can do a quick calibration using a properly made ice bath.
For the boiling water method sit your food thermometer in boiling water.
The reading should be 100 degrees celsius.
Hk calibration technologies pty ltd hkct has the equipment to calibrate thermometers from 85 to 1350 degrees celsius.
It is best to calibrate your infrared thermometer at more than one temperature at 41 f 5 c and 140 f 60 c for example and the infrared comparator cup makes it easy.
Do not soak the thermometer in water or other liquids.
There are two methods for thermometer calibration hot calibration and cold calibration.
If consecutive readings are not within 0 5 c replace or service the thermometer.
Probe thermometer calibration should be listed as a regular activity in your food safety plan.
The steps for hot calibration are as follows.
Fill a plastic container with crushed ice.
Laboratories clinics and hospital facilities rely on the accuracy of their digital thermometers every day.