Electrical efficiency meter
A device for determining the operational costs of electrical devices. A case encloses a measuring instrument including a circuit which is connectable to a power source and to the device being checked. The instrument has a dial calibrated to give readings directly related to current consumption. The...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A device for determining the operational costs of electrical devices. A case encloses a measuring instrument including a circuit which is connectable to a power source and to the device being checked. The instrument has a dial calibrated to give readings directly related to current consumption. The user applies the applicable energy rate at computation means on the case to determine the operational cost in a period of time. |
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