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  • R718N37E Wireless 3-Phase Current Meter with 3 x 75A Clamp-On CT

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R718N37E Wireless 3-Phase Current Meter with 3 x 75A Clamp-On CT

   

The NETVOX wireless three-phase current detector is used to detect three-phase electrical input current. The device is compatible with the LoRaWAN protocol and integrates a chip module that conforms to the LoRaWAN wireless protocol to display the collected data in the gateway. The device is powered by batteries and obtains the load AC current value through the current transformer. The device adopts the clamp-on current transformers, which can be conveniently connected to the measuring device.

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The NETVOX wireless three-phase current detector is used to detect three-phase electrical input current. The device is compatible with the LoRaWAN protocol and integrates a chip module that conforms to the LoRaWAN wireless protocol to display the collected data in the gateway. The device is powered by batteries and obtains the load AC current value through the current transformer. The device adopts the clamp-on current transformers, which can be conveniently connected to the measuring device.

• Clamp-on current transformer (detachable cables)
• SX1276 wireless communication module
• 2 ER14505 batteries AA size in parallel (AA size 3.6V for each battery)
• LoRaWAN™ Class A compatible
• Main body: IP53; sensor: IP30
• Magnetic base
• 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
• Low power consumption and long battery life

Electric:

Power Supply

2 ER14505 AA size lithium batteries (3.6V 2400mah for each one)

Battery Life

5 years
(when ambient temperature: 25 ℃, report once every 15mins,
txpower = 20dBm, LoRa spreading factor SF = 10)

Standby Current

25uA

Wakeup Current

7mA

RF Receiving Current

11 mA / 3.3V

RF Emission Current

120 mA / 3.3 V

Battery Measurement 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 to 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

10 km
(The actual transmission distance depends on the environment.)

Data Transfer Rate

LoRa: 0.3kbps to 50kbps
FSK: 1.2kbps to 300kbps

Modulation

LoRa/FSK (Note: One modulation method is required.)

Available LoRaWAN Band

EU863-870, US902-928, AU915-928, KR920-923, AS923-1,
AS923-2, AS923-3, IN865-867, CN470-510

(Note: optional, to be configured before shipment)


Physical:
Dimensions

Main body:112mm (L) x 88.19mm (W) x 32mm (H)
Sensor: 27.5mm (L) x 25mm (W) x 42.5mm (H)

Main body Weight

About 141g
Sensor Weight

About 49.6* 3 g

Sensor External Wiring Length

CT (non-detachable cable): about 900mm
CT (detachable cable):1200mm

Ambient Temperature Range

-20°C to 55 °C
Storage Temperature Range

-40°C to 85°C

Ambient Humidity Range

<90%RH (No condensation)

Mounting

Screw / Magnet