1、overview

LORASingle phase intelligent energy meters use dedicated large-scale integrated circuits,It has the characteristics of high precision, high reliability, high overload, low power consumption, small size, and light weight, and can be used as a remote collection and measurement terminal.The available reference frequency for measurement is50Hz or 60Hz single-phase AC active power,useRS485 communication.

The electric energy meter is designed for fixed installation indoors, with an ambient temperature of-25 ℃~+70 ℃, with a relative temperature not exceeding 80%.

This table can directly and accurately measurePower consumptionAt the same time, it hasLora has wireless transparent communication function, which can achieve remote meter reading and remote control. The communication protocol supports DL/T645-2007 "Multi functional Meter Communication Protocol", and all performance indicators meet the requirements of DL/T614 "Multi functional Energy Meter" or MODBUS-RTU communication protocol.

2TECHNICAL INDEX

2．1instrument constant1600imp/kW·h/3200imp/kW·h(Based on the panel identification)

2．2start：The electric energy meter operates at rated voltage, rated frequency, and power factor of1Under the condition of, when the load current is0.4%（1.0Grade)[0.5%（2.0Grade)]time,The energy meter should be able to continuously measure electrical energy.

2．3 shunt running：When applied115%When the rated voltage and current circuit are disconnected, there is no power pulse output.

2．4Electrical parametersAs follows:Normal operating voltage:0.9～1.1rated voltage Maximum operating voltage:0.8～1.15rated voltage

Insulation voltage:≥2000VAC Power consumption:≤2Wand10VA

2．5WeatherAs follows:Normal operating temperature:-25℃～45℃

Extreme working temperature:-45℃～55℃（-25Customization is required for temperatures below ℃

Storage and transportation temperature:-25℃～70℃

2．6 The humidity range is as follows:Annual average humidity:≤75% Within a year30The humidity can reach (naturally diffused)95%

Sometimes it can be reached at other times85%