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R718N37-Wireless 3-Phase Current Meter with 3 x 75A Clamp-On CT

R718N37 is powered by battery and obtains the load AC current value through the current transformer. The device adopts the clamp-on current transformer, which can be conveniently connected to the measuring device.

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Description
Features
Parameters
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• Clamp-on current transformer
• SX1276 wireless communication module
• 2 ER14505 battery (3.6V/section) in parallel power supply
• Main body: IP53; sensor: IP30
• Magnetic base
• LoRaWANTM Class A compatible
• Frequency Hopping Spread Spectrum (FHSS)
• Third-Party online wireless sensor monitoring and notification system to configure sensors, view data and set alerts via SMS text and email (optional)
• Available third-party platforms: Actility/ThingPark, TTN, MyDevices/Cayenne
• Improved power management for longer battery life
• Note:
Please refer to web: http://www.netvox.com.tw/electric/electric_calc.html
At this website, users can find battery lifetime for various models at different configurations.
1. Actual range may vary depending on environment.
2. Battery life is determined by sensor reporting frequency and other variables

Electric:

Power Supply	2x3.6V ER14505 lithium batteries (3.6V2400mah/section)
Standby Current	25uA
Wake up Current	7mA
RF Receiving Current	11mA @3.3V
RF Emission Current (max)	127mA/3.3V
Battery Voltage Accuracy	±0.1V
Current Measurement Accuracy	<±1% (within 300mA to 75A)
Current Resolution	1mA
Current Measurement Range	100mA to 75A (depending on the current transformer configuration)
Clamp-On CT Rated Primary Current	30A, 50Hz~60Hz
Clamp-On CT Rated Secondary Current	10mA
Clamp-On CT Saturation Current	≥75A
Clamp-On CT Ratio	3000:1
Clamp-On CT Load Resistance	10Ω
Clamp-On CT Accuracy	1%
Clamp-On CT Electrical Strength	3000V
Clamp-On CT Case Material	Flame Retardant Grade 94-V0 UL Material
Clamp-On CT Environmentally Friendly	ROHS compliant
Clamp-On CT Operating Temperature	-40℃ to 85℃

Frequency:

Frequency Range	863MHz-928MHz 470MHz-510MHz
Power Output	19dBm±1dBm(max)
TX Power	US915 20dbm； AS923 16dbm； AU915 20dbm； CN470 19.15dbm； EU868 16dbm； KR920 14dbm； IN865 20dbm；
Receiving Sensitivity	-136dBm（LoRa，Spreading Factor=12，Bit Rate=293bps )； -121dBm (FSK,Frequency deviation=5kHz, Bit Rate=1.2kbps)
Antenna Type	Built-in antenna
Communication Distance	10km (Communication distance may vary due to the environment.)
Data Transfer Rate	LoRa: 0.3kbps～50kbps FSK: 1.2kbps～300kbps
Modulation	LoRa/FSK (Note: Please choose one modulation method.)
Supportable LoRaWAN Band	EU863-870, US902-928, AU915-928, KR920-923, AS923-1, AS923-2, AS923-3, IN865-867, CN470-510 (Note: optional, to be done in the factory configuration)

Physical:

Dimensions	Main body-L:112mm * W:88.19mm * H:32mm Sensor-H:42.5mm L:27.5mm W:25mm
Weight	Main body:About 141g CT sensor:About 49.6*3g
Sensor External Wiring Length	About 900mm
Operating Temperature Range	-20°C to 55°C
Storage Temperature Range	-40°C to 85°C
Ambient Temperature Range	<90%RH
Mounting	Screw/Magnet

R718N37User manual
R718N37Datasheet