Portable programmer-reader unit for programmable time registering electric energy meters
US4291375A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1979 |
| Grant date | Sep 22, 1981 |
| Priority date | — |
| Expiry date | Mar 30, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q50/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A portable programmer-reader unit for programmable time registering AC electric energy meters utilizing replaceable program control data includes plural memory locations for programming, time and date synchronization, readout, and monitoring of the coded values of identical data items included in the meter program control data. A visual display provides numerical readouts of the data items including meter readings for different time categories of electric energy measurement by said meter and indication of error condtions. Manual control and a data entry inputs control meter data communication, readouts of the visual display and modification of the data items stored in the programmer-reader unit for programming the meter. Power conserving logic circuits extend field use while operating with a battery power supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.