IT1176370B - Dispositivo d'allarme per sistemi di tubi isolati - Google Patents

Dispositivo d'allarme per sistemi di tubi isolati

Info

Publication number
IT1176370B
IT1176370B IT21685/84A IT2168584A IT1176370B IT 1176370 B IT1176370 B IT 1176370B IT 21685/84 A IT21685/84 A IT 21685/84A IT 2168584 A IT2168584 A IT 2168584A IT 1176370 B IT1176370 B IT 1176370B
Authority
IT
Italy
Prior art keywords
transformer
alarm
signal
pipes
alarm circuit
Prior art date
Application number
IT21685/84A
Other languages
English (en)
Other versions
IT8421685A0 (it
IT8421685A1 (it
Inventor
Allan Laine
Original Assignee
Helmersson Rune
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 Helmersson Rune filed Critical Helmersson Rune
Priority to IT21685/84A priority Critical patent/IT1176370B/it
Publication of IT8421685A0 publication Critical patent/IT8421685A0/it
Publication of IT8421685A1 publication Critical patent/IT8421685A1/it
Application granted granted Critical
Publication of IT1176370B publication Critical patent/IT1176370B/it

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)
IT21685/84A 1984-06-29 1984-06-29 Dispositivo d'allarme per sistemi di tubi isolati IT1176370B (it)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT21685/84A IT1176370B (it) 1984-06-29 1984-06-29 Dispositivo d'allarme per sistemi di tubi isolati

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21685/84A IT1176370B (it) 1984-06-29 1984-06-29 Dispositivo d'allarme per sistemi di tubi isolati

Publications (3)

Publication Number Publication Date
IT8421685A0 IT8421685A0 (it) 1984-06-29
IT8421685A1 IT8421685A1 (it) 1985-12-29
IT1176370B true IT1176370B (it) 1987-08-18

Family

ID=11185363

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21685/84A IT1176370B (it) 1984-06-29 1984-06-29 Dispositivo d'allarme per sistemi di tubi isolati

Country Status (1)

Country Link
IT (1) IT1176370B (it)

Also Published As

Publication number Publication date
IT8421685A0 (it) 1984-06-29
IT8421685A1 (it) 1985-12-29

Similar Documents

Publication Publication Date Title
DE3477424D1 (en) System and method for detecting proximity to electrical power lines
ES8601485A1 (es) Dispositivo relevador de paso de corriente en uno o mas conductores
EP0057326A3 (en) Liquid level sensing circuitry
GB8522633D0 (en) Fault detecting device
IT1176370B (it) Dispositivo d'allarme per sistemi di tubi isolati
CH625932B (fr) Circuit integre apte a reagir a la presence et a la nature d'un circuit recepteur exterieur.
JPS56123383A (en) Information transmission system for controlling corrosion prevention
US4746911A (en) Alarm device for isolated pipe systems
JPS56129871A (en) Detector for missing of neutral conductor
DE3362119D1 (en) Method and device for automatically demanding signal measure values and signal identification in an alarm installation
JPS56153262A (en) Detecting method for short circuited point of wiring pattern
ES8705275A1 (es) Disposicion de vigilancia de la saturacion y procedimiento de mando para una instalacion de soldadura con convertidor de frecuencia
JPS57117408A (en) Detector for longitudinal tear of conveyor belt
JPS54138464A (en) Thickness detector of paper form object
KR900003542B1 (ko) 절연핀 파이프 시스템의 경보장치
SE8201150L (sv) Matarkrets for overstromstidsreleer
KR850006677A (ko) 자석식 연속수송시스템의 급전방식
FR2314545A1 (fr) Dispositif pour detecter une tentative de franchissement d'une cloture
FR2350018A1 (fr) Dispositif d'alimentation de poste d'abonne
JPS56103969A (en) Abnormality detector for fuse
JPS57142171A (en) Protecting system for power converter
Howell Evaluating the Ground Insulation Integrity of Long Buried Conductors by Measuring the Vertical and Longitudinal Components of an Oscillating Magnetic Field Generated by an Applied Alternating Signal Current
JPS5689390A (en) Monitor for resistance welding
JPS5719170A (en) Pulse arc welding device
Shaheen Estimation of reliability parameters of a redundant system with one standby and one repair facility