Functions and features for LEM501 Series

● Front panel mounted in 3 points for fixing. The centre-to-centre distance between the top mounting holes and the bottom one is 140 – 150 mm, which the user can select any needed distance, in accordance with Standards BS 7856 and DIN 43857.

● Metering the forward active energy, reverse active energy, forward & reverse combined active energy which is selective combination of forward and reverse active energy.

● Abundant LCD displays, with both the display of power failure and backlight display.

● Have time-of use metering, 4 tariffs, 14 intervals, 2 yearly time zones. Can set the special tariff intervals for festivals and public holidays.

● Have settlement function. Can set the maximum 3 settlement points to work in a month. Can record the historical data for the latest 12 settlement points at most.

● Load switch inside. The meter can accord with the control signal from the receiving communication command to cut off the user’s load and realize the controlling credit function.

● Remote credit control. Can remotely realize the functions of switching on or off for the users.

● Local credit control. The user will load credit via purchasing card, adopting CPU card prepayment, to be more security and reliability.

● Can record the incidents. Record 10 times for each incident.

● Have a variety of freezing functions.

● Have alarm function of super power, power reverse, hardware failure, etc.

● Automatic cycle display, display by key, and can set all of these displays items.

● Have a RS485 communication port and an infrared communication port. RS485 communication rate can be set.

● Can add a carrier communication function, the carrier module can be inserted and pulled out, applicable to the carrier module, like Dongruan, Xiaocheng, Dingxin, etc.

● Equipped with a polarity passive impulse output terminal, conforming to Standards IEC 62053-31 and DIN 43864.

● LEDs indicate the energy impulse signal, alarm status, load switch state and carrier communication state.

● Measure the active energy consumption in one direction on single phase two wire, which is not related with the load current flow direction at all, complying with Standards IEC 62053-21.

● Direct connection. Two types of connections: type 1A and type 1B for option.

● The short terminal cover is made from the transparent PC, to reduce the installation space and is convenient for centralized installation.