GB423199A - Improvements in and relating to multi-range electric measuring instruments - Google Patents

Improvements in and relating to multi-range electric measuring instruments

Info

Publication number
GB423199A
GB423199A GB24621/33A GB2462133A GB423199A GB 423199 A GB423199 A GB 423199A GB 24621/33 A GB24621/33 A GB 24621/33A GB 2462133 A GB2462133 A GB 2462133A GB 423199 A GB423199 A GB 423199A
Authority
GB
United Kingdom
Prior art keywords
resistances
resistance
multirange
relating
class
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.)
Expired
Application number
GB24621/33A
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.)
Automatic Coil Winder & Electrical Equipment Co Ltd
Original Assignee
Automatic Coil Winder & Electrical Equipment Co 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 Automatic Coil Winder & Electrical Equipment Co Ltd filed Critical Automatic Coil Winder & Electrical Equipment Co Ltd
Priority to GB24621/33A priority Critical patent/GB423199A/en
Publication of GB423199A publication Critical patent/GB423199A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/002—Switches for altering the measuring range or for multitesters

Abstract

423,199. Current and pressure meters. MACADIE, H. S., and AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO., Ltd., Winder House, Douglas Street, Westminster. Sept. 5, 1933, No. 24621. [Class 37] A multirange meter is provided with series and shunt resistances in addition to the normal range changing arrangements, the added resistances being proportional so that whether they are in or out of circuit constant total resistance is maintained, and an additional range is thereby provided for each normal range. The switch d may be coupled with a second switch and is arranged so that when the shunt resistance c is disconnected the series resistance b is short-circuited. The additional range resistances may be included in the multirange meter described in Specification 404,015, the series resistance being comprised partly of a fuse or partly or wholly of existing resistances. Specification 200,977, [Class 37], also is referred to.
GB24621/33A 1933-09-05 1933-09-05 Improvements in and relating to multi-range electric measuring instruments Expired GB423199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24621/33A GB423199A (en) 1933-09-05 1933-09-05 Improvements in and relating to multi-range electric measuring instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24621/33A GB423199A (en) 1933-09-05 1933-09-05 Improvements in and relating to multi-range electric measuring instruments

Publications (1)

Publication Number Publication Date
GB423199A true GB423199A (en) 1935-01-28

Family

ID=10214573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24621/33A Expired GB423199A (en) 1933-09-05 1933-09-05 Improvements in and relating to multi-range electric measuring instruments

Country Status (1)

Country Link
GB (1) GB423199A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140718B (en) * 1959-12-02 1962-12-06 Gossen & Co Gmbh P Light contact instrument with an upper and a lower switching point in the pointer deflection area associated with photo resistors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140718B (en) * 1959-12-02 1962-12-06 Gossen & Co Gmbh P Light contact instrument with an upper and a lower switching point in the pointer deflection area associated with photo resistors

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