(1) Thermometer: generally, the following types are available for visual inspection. i . Bar thermometer with a protective tube
ii. Bimetal thermometer
iii. Remote-reading panel-mounted thermometer
(2) Thermometer with an electric contact: the following types are available. i . Thermostat type
ii. Remote-reading thermometer with an electric contact type: the electric contact type and a micro switch type are available.
(3) Thermometer for continuous signal output: generally, this thermometer uses a thermo sensor (temperature detector) to indicate temperatures. The following types of temperature detectors are available. The shape of the detector and setting-up condition should be considered when making the selection.
i . Platinum resistance thermometer
iii. Thermistor thermometer
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