Patent · US Active

Measuring device

US10422819B2 · kind B2 · utility

0Cited by

0References

12Claims

0Family size

Assignee

VEGA Grieshaber KG · DE

Inventors

Volker Allgaier · Lenzkirch, DE
Siegbert Woehrle · Schiltach, DE

Key dates

Filing date	May 26, 2016
Grant date	Sep 24, 2019
Priority date	—
Expiry date	May 26, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04Q2209/30
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a measuring arrangement having a two-wire field device comprising a control unit, a sensor, and a radio module, a superordinate unit to which the field device is connected via a two-wire line, wherein signals from the field device are transmitted to the superordinate unit at least as a current injected by the field device in a predetermined range to the superordinate unit, wherein an error current below the predetermined range signals an error, and a maintenance current above the predetermined range signals a maintenance mode, and the field device is designed in such a manner that the maintenance current feeds the radio module in the radio operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.