技术特性

• Cost-effective and flexible
• Meets Class 1 accuracy for IB = 5 A and Imax = 80 A according to IEC 61036:1996 + A1: 2000 - Static meter for active energy (classes 1 and 2)
• Operating voltage range 220 V ± 20%
• Continuously detects and displays no-load conditions, reverse direction, fraud and case tamper conditions
• Configurable number of tariffs (1 to 4) and maximum demand type (day, one month or three month)
• Accumulated data for whole meter life (total kWh consumption, average MD (maximum demand), total number of tariffs, tariff time slots, consumption under different tariff rates, power failure date/time)
• Data for last 12 months (consumption under tamper mode for each month, first/last case/fraud tamper date/time, total tamper time and power failure accumulating time for each month)
• Data for absolute maximum demand (absolute MD, date/time) according to type of MD requested
• SW LCD driver for 24 x 4 segment LCD glass with contrast control
• RTC with SPI for real date/time
• EEPROM with SPI for storing 256 Kb of data
• Case tamper detection even in power-down
• External switch for viewing all data stored in EEPROM sequentially even when AC power is not available
• Battery backup to detect tampering and see all parameters stored in EEPROM even during power-down
• Single point and fast calibration of the STPM14 for Class 1 meter

功能框图