User Manual for Netvox R718NL1 Wireless Light Sensor and 1-Phase Current Meter

Quick guide from the manual

The Netvox R718NL1 series is a wireless device combining a light sensor and a 1-phase current meter, designed for LoRaWAN Class A networks. This guide covers the essential setup, installation, and maintenance procedures for the device.

Appearance

The device consists of a main body with a light sensor, indicator light, function key, and an external Current Transformer (CT). The series includes various models (R718NL1, R718NL13, R718NL17, R718NL115, R718NL125, R718NL163) with different CT measurement ranges.

Set up Instruction

Powering On/Off:

• Power on: Insert the two ER14505 3.6V Lithium AA batteries.
• Turn on: Press and hold the function key for 3 seconds until the green indicator flashes once.
• Turn off: Press and hold the function key for 5 seconds until the green indicator flashes 20 times.
• Power off: Remove the batteries.

Network Joining:

• Upon turning on, the device automatically searches for a network.
• If the device fails to join, it will wake up every 15 seconds for the first two minutes to send a join request, then every 15 minutes thereafter.

Installation

The device is waterproof and can be mounted using the built-in magnet on iron surfaces or fixed to a wall with screws. When installing the current transformer:

• Separate the live and neutral wires.
• Clamp the CT around the live wire only.
• Ensure the current direction is from K to L as marked on the CT.
• Do not clamp both live and neutral wires together, as they will offset each other and result in a measurement of 0.
• Avoid installing in metal shielded boxes or environments with strong electrical interference.

Data Report

The device reports data based on configured Min/Max intervals and reportable change thresholds. The default configuration is set to 30 minutes for both Min and Max intervals. If the current or illuminance change exceeds the set threshold, the device will report immediately at the Min Interval. Otherwise, it reports at the Max Interval.

Battery Passivation

If the device has been in storage for a long time, the lithium batteries may form a passivation layer, causing voltage delay. If the voltage is below 3.3V when tested with a 68ohm resistor, the battery requires activation. Connect the battery to a 68ohm resistor in parallel for 6-8 minutes to eliminate hysteresis.

Important Maintenance Instruction

• Keep the device dry to prevent corrosion of electronic circuits.
• Avoid dusty, dirty, or extreme temperature environments.
• Do not use strong chemicals or detergents for cleaning.
• Do not disassemble the device unless replacing batteries.
• When replacing batteries, ensure the waterproof gasket is not damaged and tighten screws to a torque of 4kgf if using an electric screwdriver.