Introduction to Pulse Electricity Meters
Pulse electricity meters are electronic devices integrated with the traditional 86 series electricity meters. They maintain the same installation dimensions as the 86 series and feature a unique terminal button junction box for pulse output wiring. These meters can identify the direction of power flow and provide both forward and reverse pulses. The pulse output can be configured as active or passive, depending on user requirements.
Main Technical Specifications
- Pulse Output Width: 80ms ± 20ms (low level effective)
- Active Output: High level voltage of 5V or 12V (load), maximum current of 100mA
- Passive Output: Can withstand a maximum applied voltage of 50V and accept up to 50A of applied current
- Standards Compliance: Conforms to international standard GB/T15283-94
Note: If no wiring method is specified by the customer, the meter defaults to passive mode.
Installation and Use
Each watt-hour meter is inspected and sealed with a lead seal before leaving the factory. If the seal is absent or the meter has been stored for an extended period, it must be re-calibrated by the relevant authorities to ensure accuracy before use.
The meter should be installed indoors in a dry, ventilated location, mounted on a sturdy wall to prevent vibration, at a recommended height of approximately 1.8 meters. It must be installed vertically. Wiring should follow the specified phase sequence and the diagram on the terminal box cover, using copper connectors to avoid poor contact and potential damage. In areas prone to thunderstorms, lightning protection measures are recommended. The meter’s load capacity ranges from 0.05IB to Imax; exceeding this capacity can cause the current coil to overheat and fail.
For meters connected to a transformer, multiply the reading in the window (black for integers, red for decimals) by the transformer’s ratio to obtain the actual watt-hour measurement.
Transportation and Storage
During transportation and unpacking, avoid severe impacts. The watt-hour meter should be transported and stored according to ZBY002-81 standards, which outline basic environmental conditions and test methods. Store meters in their original packaging at temperatures between 0°C and 40°C, with relative humidity not exceeding 85%. The air in storage areas should not contain corrosive gases. Store meters on shelves, no more than five boxes high. After unpacking, single meters should not be stacked more than five high, and unpacked meters in inner packaging (e.g., plastic bags) should not be stored.