9 LEM022SJ 2015 V01
NO.
3
R
L
= 2.5 Wh/imp R
A
= 2.5 Wh/imp
L 1 L 2 L 3PU L S ER E V .
3 PHASE 4 WIRE ENERGY METER
EN 50470-3
B
230/400V, 0.25-5(100)A , 50Hz
Pulse output
The pulse led on the front of the meter is pulsing when the meter is in use (2,5Wh/inp.).
The LEM022SJ DIN rail energy meter is equipped with an pulse output which is fully
separated from the inside circuit. It generates pulses in proportion to the measured
energy for remote reading purposes and accuracy testing. The pulse output is a
polarity dependant, passive transistor output requiring an external voltage source for
correct operation. For this external voltage source, the voltage (Ui) should is 5-27V
DC, and the maximum input current (Iimax) is 27mA DC. To connect the impulse
output, connect 5-27V DC to connector 26 (anode), and the signal wire (S) to
connector 27 (cathode). The meter pulses 400 per kWh (2.5Wh/imp).
1.10 Troubleshooting
During repair and maintenance, do not touch the meter connecting
clamps directly with your bare hands, with metal, blank wire or other
material as you will have the chance of an electric shock and a possible
chance for health damage.
Turn off and lock out all power supplying the energy meter and the
equipment to which it is installed before opening the protection cover to
prevent the hazard of electric shock.
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