SDM230-LoRa measures and displays the characteristics of single phase two wires(1p2w) supplies, including kWh, kVArh, kW, kVAr, kVA, PF, Frequency, Voltage, Current, dmd, THD etc. It support Max. 100A direct connection, saving the cost to install external CTs. Maximum demand current can be measured over preset periods of up to 60 minutes.

This unit has a built-in LoRaWAN module which allows long range wireless communication.

Two pulse outputs are available for real time energy measurement.

Features

MID Certified
Single phase 100A direct connection
High accuracy, class 1 / class 0.5s
Single phase or three phase network compatible
Multi-parameters measurement
Bi-directional measurement for kW and kWh
Configurable pulsed output
Built in Pulsed outputs, 1 x Fixed & 1 x Configurable
Built-in LoRaWAN communication
Confirmations / Offline detection available
Support auto-upload mode for uploading data to back server actively
Support auto-resume mode for suddenly power off of the gateway when resume
Download/ Upload time interval can be set or adjusted
Wide range of LoRa frequency band
(EU868/AS923/CN433/CN470/AU915/US902 MHz, etc.)

Specifications

Nominal voltage(Un): 120V or 230V AC
Operational voltage: 80%~120% of Un
Insulation capabilities:
– AC voltage withstand 4KV for 1 minute
– Impulse voltage withstand 6KV-1.2μS
Basic current(Ib): 10A
Maximum rated current(Imax): 100A
Operational current range: 0.4% Ib-Imax
Over current withstand: 30 Imax for 0.01s
Operational frequency range: 50 or 60Hz
Internal power consumption: ≤ 2W/10VA
Pulse output 1: 1000imp/kWh(configurable)
Pulse output 2: 1000imp/kWh
Max reading: 99999.99kWh
Operating humidity: ≤ 90%, no condensing
Storage humidity: ≤ 95%, no condensing
Operating temperature: -25 to 55°C
Storage temperature: -40 to 70°C
Reference temperature: 23°C±2°C
International standard: IEC 62053-21/ EN50470-1/3
Accuracy class: Class 1/Class B
Installation category: CAT III
Mechanical environment: M1
Electromagnetic environment: E2
Degree of pollution: 2
Protection against penetration of dust and water: IP51(indoor)
Insulation encased meter of protective class: II
Electrostatic discharges: 8kV contact / 15kV air gap
Electromagnetic HF fields: IEC 6100-4-3
Electrical fast transients: 4kV
Surge: 4kV
Radiated & conducted emissions: EN55022
Radiated & conducted emissions: EN55022

Voltage, Current: 0.5%
Frequency: 0.2% of mid-frequency
Power factor: 1% of unity(0.01)
Active power, Apparent power: ±1% of range maximum
Reactive power: ±1% of range maximum
Reactive energy(VArh): Class 2
Active energy(Wh): Class 1

Pulse output: 2
Pulse output type: Passive
Pulse output 1: Configurable
Pulse width: 200 / 100(default) / 60ms
Pulse output 2: 1000imp/kWh