# Which Meter Constants are used?

A frequency proportional to the total power is generated by a signal processor, which applies to the pulse output fOUT of the CL3115. The energy output pulse constant can be set to automatic mode or manual mode. Setting range is: 1…2,000,000,000 i/kWh. The pulse output frequency is 160 kHz for End of range in voltage and current. The energy pulse is on TTL/CMOS level, burden capacity >20 mA. The range can be selected in Auto-mode or direct assigned.
Calculation formula for the output frequency

Calculation formula for the meter constant

UR and IR are the ranges, the frequency is 160 kHz

 3 wire and 4 wire mode VOLTAGE RANGE 60V 120V 240V 480V C U R R E N T R A N G E 0.01A 2.0×109 2.0×109 2.0×109 2.0×109 0.02A 2.0×109 2.0×109 2.0×109 2.0×109 0.05A 2.0×109 2.0×109 2.0×109 2.0×109 0.1A 2.0×109 2.0×109 2.0×109 2.0×109 0.2A 2.0×109 2.0×109 2.0×109 2.0×109 0.5A 2.0×109 2.0×109 1.6×109 8.0×108 1A 2.0×109 1.6×109 8.0×108 4.0×108 2A 1.6×109 8.0×108 4.0×108 2.0×108 5A 6.4×108 3.2×108 1.6×108 8.0×107 10A 3.2×108 1.6×108 8.0×107 4.0×107 20A 1.6×108 8.0×107 4.0×107 2.0×107 50A 6.4×107 3.2×107 1.6×107 8.0×106 100A 3.2×107 1.6×107 8.0×106 4.0×106
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