JPS5246876A - Thermcouple fault detecting device - Google Patents

Thermcouple fault detecting device

Info

Publication number
JPS5246876A
JPS5246876A JP50122518A JP12251875A JPS5246876A JP S5246876 A JPS5246876 A JP S5246876A JP 50122518 A JP50122518 A JP 50122518A JP 12251875 A JP12251875 A JP 12251875A JP S5246876 A JPS5246876 A JP S5246876A
Authority
JP
Japan
Prior art keywords
thermcouple
detecting device
fault detecting
thermocouple
lead wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP50122518A
Other languages
Japanese (ja)
Inventor
Moriaki Tsukamoto
Shigeru Ideumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP50122518A priority Critical patent/JPS5246876A/en
Publication of JPS5246876A publication Critical patent/JPS5246876A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

PURPOSE: To accurately measure the internal resistance of a thermocouple by flowing current in the thermocouple and its compensating lead wire or compensating lead wire of a dummy using a constant current power supply of DC, thereby detecting the fault of the thermocouple at high sensitivity.
COPYRIGHT: (C)1977,JPO&Japio
JP50122518A 1975-10-13 1975-10-13 Thermcouple fault detecting device Pending JPS5246876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50122518A JPS5246876A (en) 1975-10-13 1975-10-13 Thermcouple fault detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50122518A JPS5246876A (en) 1975-10-13 1975-10-13 Thermcouple fault detecting device

Publications (1)

Publication Number Publication Date
JPS5246876A true JPS5246876A (en) 1977-04-14

Family

ID=14837826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50122518A Pending JPS5246876A (en) 1975-10-13 1975-10-13 Thermcouple fault detecting device

Country Status (1)

Country Link
JP (1) JPS5246876A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0331731A (en) * 1989-06-29 1991-02-12 Komatsu Ltd Disconnection detection method and disconnection detection circuit of thermistor temperature sensor circuit
DE102005036407A1 (en) * 2005-07-29 2007-02-01 Endress + Hauser Wetzer Gmbh + Co. Kg Evaluation unit for continuous thermocouples

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0331731A (en) * 1989-06-29 1991-02-12 Komatsu Ltd Disconnection detection method and disconnection detection circuit of thermistor temperature sensor circuit
DE102005036407A1 (en) * 2005-07-29 2007-02-01 Endress + Hauser Wetzer Gmbh + Co. Kg Evaluation unit for continuous thermocouples

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