Functions?and?features

√ ?Available?as?35mm?DIN?standard?rail?mounted,?conforming?to?Standards?DIN?EN?50022,?as?well?as?front?

PANEL?mounted?(the?center?distance?between?two?mounting?holes?is?63mm).?Two?mounted?methods?above?

are?optional?for?user.

√ ?6?pole?width?(modulus?12.5mm),?complying?with?Standards?JB/T7121-1993.

√ Can?select?time-of-use?metering?in?3?tariffs.?Can?set?12?daily?intervals.?Can?freely?set?the?date?in?every?

month?to?read?meter?automatically.?Can?set?single?tariff?at?weekends.?

√ ?Can?select?2?tariffs?metering,?equipped?with?the?tariff?setting?port,?if?the?input?control?voltage?is?0?-?90?Vac,?

the?setting?tariff?is?F1.?If?the?input?control?voltage?is?150?-?400?Vac,?the?setting?tariff?is?F2.?Tariff?transduction?

is?controlled?by?the?external?timer?or?similar?device.

√ ?The?meter?with?time-of-use?metering?in?3?tariffs?has?clock?chip?inside?and?maintenance?free?lithium?battery?

inside.?The?battery?capacity?can?be?detected?in?real?time?and?displayed,?keeping?the?data?for?12?months.

√ ?7?digits?LCD?with?two?options:?cycle?display?(default)?or?push-bottom?display?item?by?item.?Can?set?the?cycle?

display?interval.?Can?select?the?data?item?of?display.?The?decimal?of?the?data?display?can?be?set?to?be?1?or?2?

digits.

√ ?Can?select?the?inside?far?infrared?data?communication?port?and?RS485?data?communication?port?for?meter?

setting?or?reading?meter.?The?meter?setting?has?password?protection.?The?communication?protocol?complies?

with?Standards?DL/T645-1997,?can?also?select?the?other?communication?protocol.

√ ?S-connection?(inlet?wire?from?bottom?and?outlet?wire?on?top)?and?direct?connection.

√ ?Equipped?with?a?polarity?passive?energy?impulse?output?terminal,?conforming?to?Standards?IEC?62053-31?

and?DIN?43864.

√ ?LEDs?indicate?separately?the?power?state,?the?energy?impulse?signal,?load?current?flow?direction,?current?

tariff?state?and?data?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.

√ ?The?short?terminal?cover?is?made?with?the?transparent?PC,?to?reduce?the?installation?space?and?is?

convenient?for?centralized?installation.?

Technical?parameters

Model

Accuracy

Reference

voltage?(V)

Current

specifications?(A)

Starting

current?(A)

Insulation

performance

LEM031xx

Class?1

127?or?230

5(30)

10(60)

20(120)

0.02

0.04

0.08

AC?voltage?4kV?for?1?minute,?

1.2/50us?waveform?impulse?voltage?6kV.