JPS6468623A - Induction type liquid level detector - Google Patents

Induction type liquid level detector

Info

Publication number
JPS6468623A
JPS6468623A JP62225520A JP22552087A JPS6468623A JP S6468623 A JPS6468623 A JP S6468623A JP 62225520 A JP62225520 A JP 62225520A JP 22552087 A JP22552087 A JP 22552087A JP S6468623 A JPS6468623 A JP S6468623A
Authority
JP
Japan
Prior art keywords
circuit
test
coil
rss
terminal
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.)
Granted
Application number
JP62225520A
Other languages
Japanese (ja)
Other versions
JP2670053B2 (en
Inventor
Hiroyuki Yamada
Kenji Tonomoto
Toshihiko Ogasawara
Masao Tezuka
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.)
SUKEGAWA DENKI KOGYO KK
Sukegawa Electric Co Ltd
Mitsubishi Heavy Industries Ltd
Original Assignee
SUKEGAWA DENKI KOGYO KK
Sukegawa Electric Co Ltd
Mitsubishi Heavy Industries 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 SUKEGAWA DENKI KOGYO KK, Sukegawa Electric Co Ltd, Mitsubishi Heavy Industries Ltd filed Critical SUKEGAWA DENKI KOGYO KK
Priority to JP62225520A priority Critical patent/JP2670053B2/en
Publication of JPS6468623A publication Critical patent/JPS6468623A/en
Application granted granted Critical
Publication of JP2670053B2 publication Critical patent/JP2670053B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

PURPOSE:To accurately test components through easy operation by providing relay switches between a primary coil and a sending circuit, and an secondary coil and a comparing circuit, and also providing operation testing circuit to the primary and secondary coils, comparing circuit, and sending circuit respectively. CONSTITUTION:The relay switches RS16 and RS17 turn on with a test switch 21 on, and the comparing circuit 8 is switched to a terminal 20; and the induction type liquid level detecting device outputs a signal indicating that a test is in process from an interlock terminal 27 and there are input signals to AND circuits 24 and 25 as well. With a switch 22 on, RSs 13-15, and 11 and 12 are turned on through the AND circuits 24 and 25. An RS 13 is turned off and the coil 3 is disconnected from the sensing circuit; and the coil 4 is switched to test terminals 28 and 29 by RSs 11 and 12 and the output of the sending circuit 6 is applied as a test voltage to an arithmetic circuit 8 through resistances 31 and 32 an amplifiers 7a and 7b by turning on the RSs 14 and 15, so that the operation is confirmed as a terminal 20. A voltage induced across the secondary coil 4 is also confirmed at terminals 28 and 29 by using the switches 21 and 23.
JP62225520A 1987-09-09 1987-09-09 Induction type liquid level detector Expired - Lifetime JP2670053B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62225520A JP2670053B2 (en) 1987-09-09 1987-09-09 Induction type liquid level detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62225520A JP2670053B2 (en) 1987-09-09 1987-09-09 Induction type liquid level detector

Publications (2)

Publication Number Publication Date
JPS6468623A true JPS6468623A (en) 1989-03-14
JP2670053B2 JP2670053B2 (en) 1997-10-29

Family

ID=16830596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62225520A Expired - Lifetime JP2670053B2 (en) 1987-09-09 1987-09-09 Induction type liquid level detector

Country Status (1)

Country Link
JP (1) JP2670053B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5863818A (en) * 1981-10-13 1983-04-15 Toshiba Corp Induction type fixed liquid level indicator
JPS58191929A (en) * 1982-05-04 1983-11-09 Toshiba Corp Induction type level gauge
JPS62116271A (en) * 1985-11-15 1987-05-27 Fujitsu Ltd Test circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5863818A (en) * 1981-10-13 1983-04-15 Toshiba Corp Induction type fixed liquid level indicator
JPS58191929A (en) * 1982-05-04 1983-11-09 Toshiba Corp Induction type level gauge
JPS62116271A (en) * 1985-11-15 1987-05-27 Fujitsu Ltd Test circuit

Also Published As

Publication number Publication date
JP2670053B2 (en) 1997-10-29

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