.~> By immersion in liquid having controlled temperature
DEFINITION
Classification: 374/1
THERMAL CALIBRATION SYSTEM:
(under the class definition) Subject matter for determining the accuracy, operability, or operating characteristics of a device responsive to a thermal condition.
(1) Note. The calibration may involve either a single value or plural values including a continuous variation.
(2) Note. The thermal condition responsive device need not be a measuring or testing device, e.g. calibration of a thermostat is classifiable in this subclass.
(3) Note. A measuring or testing device having a reference or calibrating element or subsystem is classified with the measuring or testing device.
SEE OR SEARCH CLASS
73, Measuring and Testing,
1.01+, for calibrating or proving of a nonthermal condition responsive arrangement.
399, Electrophotography, 67+, for controls of fixing, particularly subclass 70 for temperature control of a warm-up or standby mode and subclass 94 for internal machine environment temperature.
