Method and meter system for reading meters employs a dual code formed of secret and official codes
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Consumption meter for electricity, gas or water has electrically-operated digital display only activated for read-out of meter
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Method and system for energy supply via an energy supply network
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Method and system for energy supply via an energy supply network
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Decentralised measurement device
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Flow through-put measurement in side lines of water supply for individual billing of consumer
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Measuring electrical power consumption for single or multi-phase AC supplies
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Wireless antitheft appts. protecting goods carried by people
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Amplifier circuit with digital programmable feedback loop
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Current transformer, in particular a current transformer for an electronic electricity meter
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Apparatus for the control of power consumption
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AC / DC TRANSFER TECHNOLOGY FOR ELECTRIC INTERCHANGEABLE SIZES
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CURRENT TRANSFORMER ARRANGEMENT WITH INCREASED ACCURACY
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Arrangement for energy measurement in two separate, multi-phase supply circuits
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Electricity and thermal meter linearising correction circuit - has analogue-to-frequency converter and nulls and differentiates pulse rate
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Measuring maxima of measuring valves varying with time - using flexible system contg. microprocessor with external non-volatile memory
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Correction circuit for meter - has multiplier circuits for measured value signals using analog frequency converters and filters
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Electronic analogue to frequency converter range adaptation circuit - controls signal input rate and frequency generator division from input
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TDM system to measure electrical power and energy - uses two pulsed logic units t- control voltage and current signal for device integration
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Iron coreless instrument transformer system with air gap transformer - through whose primary flows current to be measured and which is decoupled from compensation transformer
