Lanri Technology
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Residential postpaid metering

S200

Single-Phase Residential Postpaid Meter

A robust single-phase postpaid meter for residential consumers, combining precise bi-directional measurement, local optical reading and dependable load control.

S200 Single-Phase Residential Postpaid Meter

Key Features

Built for accurate, connected metering.

01

Class 1.0 active energy accuracy

02

Harmonic detection and measurement up to the 15th order

03

Bi-directional, dual-channel measurement

04

Internal breaker with flexible load control

05

Anti-tamper operation under a 500 mT magnetic field

06

Power-outage LCD display and optical probe fast reading

Core Capabilities

More than measurement.

Measurement & Records

  • Instantaneous voltage, current and frequency
  • Import/export active energy, apparent power and demand registers
  • Daily profiles plus up to 12 months of billing records

Events & Load Control

  • Cover-open, reverse-current and magnetic tamper detection
  • Under/over-voltage, current imbalance and failure events
  • Bi-stable relay control, over-current control and power limitation

Time, Optical Port & Security

  • RTC with ≤0.5-second daily deviation and automatic leap-year handling
  • IEC 62056-21 optical port with data-burst reading mode
  • Password-protected parameter configuration

Technical Specifications

Essential parameters.

Key values are summarized below. Download the complete datasheet for detailed functions, dimensions and wiring information.

Reference voltage
230 V
Operating range
50%-120% Un
Basic current
5 A
Maximum current
60 A
Starting current
0.2% Ib
Accuracy
Class 1.0 kWh
Frequency
50 Hz ±2%
Pulse constant
1600 imp/kWh
Operating temperature
-25°C to +55°C
Protection
IP54; Class II
Design lifetime
≥15 years

Complete Documentation

S200 Product Datasheet

Technical details, main functionalities, installation dimensions and connection diagram.

Download PDF