4 SEP LEM012SJ 2015 V01
1.3 Performance criteria:
Operating humidity ≤ 75%
Storage humidity ≤ 95%
Specified operating temperature -10°C - +40°C (3K5)
Limit operating temperature -25°C - +55°C (3K6)
Storage temperature -40°C - +70°C (1K5)
International standard EN 50470-3
Accuracy class Class 1
Protection against penetration
of dust and water IP51
Insulating encased meter of
protective class Ⅱ
1.4 Specifications:
Reference voltage (Un) 230V AC
Operational voltage 161 - 300V AC
Insulation capabilities:
- AC voltage withstand 2KV for 1 minute
- Impulse voltage withstand 6KV – 1.2µS waveform
Minimum current (Imin) 1.0 A
Transitional current (Itr) 2.0 A
Reference current (Iref) 20 A
Maximum current (Imax) 100 A
Operational current range 1.0A - 100A
Over current withstand 3000A for 0.01s
Operational frequency range 50Hz ±10%
Internal power consumption ≤2W / 10VA
Test output flash rate (PULSE LED) 500 pulses per kWh (2.0Wh/imp)
Pulse output rate (pins 20 & 21) 500 pulses per kWh (2.0Wh/imp)
Pulse supply current Ui max=27V / Ii max 27mA
Power supply indicator (POWER LED) Meter is connected and working OK
Consumption indicator (PULSE LED) Flashing at load running
Data display mode 7+1 digits for LCD display
Data save The data can be stored more than 20 years
when power cut.
1.5 Intrinsic errors:
Imin ≤ I < Itr Cosφ = 1 ±1.5%
Itr ≤ I ≤ Imax Cosφ = 1 ±1.0%
Cosφ = 0.5L ±1.0%
Cosφ = 0.8C ±1.0%
1.6 Description
A Front plate with LCD
B Meter cover
C Protection cover
D Security hasp
E Indicator lights power and pulse.
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