Multi function Energy Meter In addition to the measurement of active (reactive), also has a time-sharing, the measurement of demand of two or more functions, and display, storage and output data of the energy meter
Main Technical date
1. Class index: Active energy: Class0.5, 1, reactive energy: Class2
2. Clock error: ≤ 0.5s/day
3. Reference temperature: 23degree
4. Date protection: Date stored time after power off: ≥ 10years
5. Environment conditions: Working temperature: -20~45degree
Utmost working temperature: -25~55degree
Relative humidity: ≤ 85%(at environment temperature 23degree)
Main functions:
1. Measurement function
Can measure active and reactive energy respective, and have separate active and reactive pulse signal output interfaces.
2. Multi-tariff function
A. Four tariffs, ten time intervals.
B. Calendar for a century(1996-2095)can switch automatically.
C. Record and store the total active energy and reactive energy and active energy and reactive energy under kinds of tariffs.
3. Demand statistic
A. Record active max demand an its time
B. Demand statistics adopts method.
C. Max demand is stored as per month
D. Automatically alarm and trip for overload
4. Record voltages loss
A. Record 9 voltage loss and information of power failure, also can record their initial and restoring time.
B. Record total active energy and reactive energy of no voltage-loss phase.
5. Programming and meter reading
A. RS485 communication interface
B. The programming and meter reading are performed by RS485 communication interface, infrared communication interface and palm also it can perform meter reading through remote controller and alternation displaying
6. Meter reading at zero o'clock
A. The setting day for meter reading is 1st ~ 28th of every month at the same time.
B. Can store and display calculated date for past three months at the same time.
(11)Meter reading at power off
The meter is provided with individual meter reading battery, so it can finish meter reading at power off.