To provide a furnace capable of easily judging deterioration of a thermocouple for control measuring an internal temperature of a furnace body to control a heat source, with high accuracy.
This furnace includes: the furnace body 11 to which a heated object is charged; the heat source 12 for heating the inside of the furnace body 11; a thermocouple unit 20 provided with the thermocouple 21 for control measuring the internal temperature of the furnace body 11 and provided with a detachable thermocouple 23 for test; a temperature control portion 25 controlling the output of the heat source 12 according to a measurement value measured by the thermocouple 21 for control and adjusting the internal temperature of the furnace body 11; and an information processing terminal 29 comparing the measurement value measured by the thermocouple 21 for control with a reference measurement value measured by the thermocouple 23 for test, and determining whether the error of the thermocouple 21 for control is less than a prescribed value or not.
NITTA KOHEI
WATANABE SHINJI
KINOSHITA HIDEYUKI
| JPH0312527A | 1991-01-21 | |||
| JP2004239786A | 2004-08-26 | |||
| JP2003207397A | 2003-07-25 | |||
| JPS6373124A | 1988-04-02 | |||
| JP2002288775A | 2002-10-04 |
Tadashi Takahashi
Yasuhiko Murayama
Noriko Yanai
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