When should thermometer be calibrated in a restaurant?

If the thermometer is calibrated on the Fahrenheit scale, then that mark is considered to be the normal temperature of the healthy human body. If the thermometer is calibrated on the Celsius scale, then that mark is very very close to the temperature of boiling water.

none of these make sense

You should place is along the wall.

A thermometer must be calibrated before use to avoid false readings.

As long as your meat thermometer is calibrated correctly, it should only take about 2-5 seconds to get a reading.

This is important for making correct measurements.

The thermal expansion of a material is proportional to the temperature and the thermometer is calibrated.

So that you know that they show the true value, and that the results collected with one thermometer can be compared with the result collected from another thermometer.

That depends on what units the thermometer is calibrated in. The SI unit for temperature is the kelvin, but degrees Celsius commonly used, if the thermometer reads in kelvin or degrees Celsius then it is a metric tool.

A clinical thermometer will offer more precise calibrated readings than a mercury thermometer. The range of measurable temperature differs between a clinical and a mercury thermometer with the mercury thermometer having the wider range.

Food temperature is generally checked by inserting the probe into the thickest part of the food, using a sanitized, calibrated, instant-read thermometer.

A good thermometer for measuring the temperature of boiling water is one that is calibrated so that 100oC is in the mid to upper range of the scale. A typical alcohol thermometer usually works nicely.

Generally thermometers are calibrated two ways . primary calibration or Secondary calibration. In secondary calibration , two thermometers are kept side by side under same conditions and identify the difference with respect to one thermometer. In primary calibration , thermometer that to be calibrated is placed in a ice cubes made of pure distilled water . Now pour some distilled water and stirr well . Now place thermometer inside that mixture This will give the Melting point temperature of pure water 0 degree centigrade. Now see the reading on thermometer and adjust reading. This way of calibrating a thermometer is accurate enough form most applications.

Most medical electronic thermometers are not calibrated to measure ambient temperatures.

I think you should capitalize 'Sushi' but not restaurant. it should be Sushi restaurant.

"Calibrate" typically refers to adjusting machinery.

Altitude should not affect oven temperature but it will affect how much your baked goods will rise in the oven. It is always a good idea to have an oven thermometer in your oven to make sure that the oven is calibrated properly.

Yes, it can also be measured from the armpit, rectum, ear, and forehead (depending on what type of thermometer you have). Some thermometers are calibrated to give body temperature based on a specific body part. Thus, you should not expect an accurate reading from an ear thermometer when aimed at the forehead.

In a manual/old-style thermometer, liquid (usually mercury) in the tube expands at a known rate, moving up the body of the thermometer. The markings are calibrated based on the known expansion rate. I don't know about electronic models.

yes its possible in zone iv as there boiling water temp is 100 degree celcius n freezing 0 degree celcius.

the mercury should be at normal body temperature level before using it the thermometer should be cleaned after use with normal water the bulb of the thermometer should not be touched

You should replace a digital thermometer when it becomes inaccurate. You should also replace it when it is damaged or cracked.

A restaurant manager should listen to complaints, in order to improve the restaurant.

The mercury in the bulb at the bottom of the thermometer expands or contracts depending on the amount of heat (the temperature). The narrow calibrated tube that you read the temperature on acts to amplify this effect. The calibration is usually either in Fahrenheit or Celsius.

fordetermining point of ice,the thermometer should be kept