Meter, demand watt-hour

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Ingenium, 1997.0249.001
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OBJECT TYPE: REGISTER/SOLID STATE
DATE: Unknown
ARTIFACT NUMBER: 1997.0249.001

MANUFACTURER: Appalachian Technologies Corp.
MODEL: EDR-1000
LOCATION: United States of America

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: ALUMINUM CASE/ CAST IRON BASE/ GLASS COVER/ METAL AND SYNTHETIC WORKING PARTS

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 24.0 cm
Width: 19.0 cm
Height: 19.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Energy-electric
Category: Measurement
Sub-Category: N/A

Manufacturer

AKA: Appalachian
Country: United States of America
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Ontario
Period: Unknown
Canada: THIS ONE WAS KEPT AT THE DEPT. OF TRADE AND COMMERCE, STANDARDS BRANCH, AS PART OF ITS LEGAL OBLIGATION TO TEST AND MAINTAIN EXAMPLES OF METERS SOLD COMMERCIALLY IN CANADA.
Function: USED TO INDICATE THE MAXIMUM ELECTRICAL LOAD ON A CIRCUIT AVERAGED OVER 15 AND 30 MINUTES IN KILOWATTS, AND TO MEASURE THE ENERGY CONSUMED IN AN ELECTRICAL CIRCUIT IN KILOWATT HOURS.
Technical: IN ORDER TO FAIRLY CHARGE CONSUMERS OF ELECTRICITY THE DEMAND REQUIRED BY A CONSUMER OVER A SHORT PERIOD OF TIME IS FACTORED INTO THEIR CHARGES. THIS METER HAS A MECHANISM TO INDICATE MAXIMUM DEMAND AND ALSO TO REGISTER ELECTRIC ENERGY USED.
Area Notes: Unknown

Details

Markings: TOP PLATES: 'kWh/ [4 DIALS FROM 0 TO 9]/ Rr222 2/9/ EDR-1000 DEMAND REGISTER/ [MFG'S LOGO]/ APPALACHIAN TECHNOLOGIES CORPORATION/ Manufacturer (Meter)/ Meter Type/ Class Volts/ HZ FS/ # Stators Form/ TA KH/ INDICATION - 90% 15 MIN/ 99% 30 MIN/ S/N/ PATENT/ PENDING'/ STAMPED ON BACK: '904218. 101'
Missing: PLATE TO COVER WIRING CONNECTIONS
Finish: CASE PAINTED GLOSS GREY/ UNCOLOURED GLASS
Decoration: N/A

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Appalachian Technologies Corp., Meter, demand watt-hour, Unknown Date, Artifact no. 1997.0249, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1997.0249.001/

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