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ZA782274B - Improvements in or relating to electrical circuit test devices - Google Patents

Improvements in or relating to electrical circuit test devices

Info

Publication number
ZA782274B
ZA782274B ZA00782274A ZA782274A ZA782274B ZA 782274 B ZA782274 B ZA 782274B ZA 00782274 A ZA00782274 A ZA 00782274A ZA 782274 A ZA782274 A ZA 782274A ZA 782274 B ZA782274 B ZA 782274B
Authority
ZA
South Africa
Prior art keywords
relating
electrical circuit
circuit test
test devices
devices
Prior art date
Application number
ZA00782274A
Inventor
M Koslar
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of ZA782274B publication Critical patent/ZA782274B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/14—Indicating direction of current; Indicating polarity of voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/06—Measuring leads; Measuring probes
    • G01R1/067—Measuring probes
    • G01R1/06788—Hand-held or hand-manipulated probes, e.g. for oscilloscopes or for portable test instruments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
ZA00782274A 1977-04-21 1978-04-20 Improvements in or relating to electrical circuit test devices ZA782274B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2717826A DE2717826C2 (en) 1977-04-21 1977-04-21 Test device for displaying an electrical voltage and / or its polarity as well as the passage of current through an electrical conductor

Publications (1)

Publication Number Publication Date
ZA782274B true ZA782274B (en) 1979-04-25

Family

ID=6006954

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00782274A ZA782274B (en) 1977-04-21 1978-04-20 Improvements in or relating to electrical circuit test devices

Country Status (3)

Country Link
AU (1) AU517481B2 (en)
DE (1) DE2717826C2 (en)
ZA (1) ZA782274B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846675C3 (en) 1978-10-26 1981-08-13 Siemens AG, 1000 Berlin und 8000 München Test device for displaying an electrical voltage and, if necessary, its polarity
DE3213749A1 (en) * 1982-04-14 1983-11-03 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for lowering the input impedance of a two-terminal high-impedance test device
AU585846B2 (en) * 1985-01-24 1989-06-29 Maurice Glover Electrical parameter test unit
DE3834183A1 (en) * 1988-10-07 1990-04-12 Asea Brown Boveri ELECTRONIC MULTI-RANGE MEASURING DEVICE
DE4002603C2 (en) * 1990-01-30 1994-02-03 Benning Elektrotechnik Voltage tester
DE4119894C2 (en) * 1991-06-17 1994-09-22 Hubertus Schauerte Tension meter
DE4302292A1 (en) * 1993-01-28 1994-08-04 Benning Elektrotechnik Test device for the optional display of an electrical voltage or the passage of current through an electrical conductor

Also Published As

Publication number Publication date
DE2717826B1 (en) 1978-09-07
DE2717826C2 (en) 1979-05-03
AU517481B2 (en) 1981-08-06
AU3529878A (en) 1979-10-25

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