Solexy Admiral Intrinsically Safe LoRa Node Module for Zone 0/20

Description

The Solexy LWI Series is a battery-operated, intrinsically safe LoRaWAN® I/O module developed for monitoring and control applications directly inside ATEX and IECEx Zone 0, 1, 2, 20, 21, and 22 hazardous areas. Built around Solexy’s intrinsically safe (Ex ia) construction and powered by replaceable lithium batteries that last up to five years, the LWI Series collects readings from temperature probes, analog sensors, digital inputs, and serial devices, and transmits the data over long-range LoRa to any standard LoRaWAN gateway — up to 10 km away. It is purpose-built for refineries, petrochemical plants, tank farms, offshore platforms, and other facilities where wired telemetry is impractical and where temporary or permanent monitoring deployments need to go live quickly, without conduit, cable trays, or shutdown periods.

A modular design based on a motherboard with interchangeable slave boards lets you configure the exact mix of inputs your application needs — Type K thermocouples, PT100/PT1000 RTDs, 4–20 mA, 0–10 VDC, digital I/O, or RS485 — without paying for capabilities you don’t use. The rugged aluminum (or plastic) enclosure is IP65/IP67 weatherproof for outdoor and offshore use, and the intrinsically safe lithium battery can be replaced in the field within a classified area, eliminating shutdowns for maintenance. LoRaWAN Class A communication with AES128 encryption and ABP or OTAA activation makes the LWI ready to integrate with any standard LoRaWAN network server.

Features

• ATEX/IECEx certified for Zone 0, 1, 2, 20, 21, and 22 (gas and dust) — the highest classification level available
• ATEX/IECEx markings: II 1G Ex ia IIC T4 Ga and II 1D Ex ia IIIC T135°C Da
• Fully intrinsically safe (Ex ia) construction — no flameproof conduit, seals, or special wiring methods required
• LoRaWAN® Class A protocol with up to 10 km range
• AES128 data encryption with ABP or OTAA activation
• Up to 5 years battery life on a single intrinsically safe lithium battery (BL-02: 3.6V / 7,200 mAh)
• Field-replaceable battery inside the classified area — no shutdown required for maintenance
• Optional 9–36 VDC / 500 mW external Ex i power supply
• Modular I/O architecture: motherboard plus interchangeable slave boards
• Temperature inputs: Type K thermocouple, PT100, PT1000
• Analog inputs: 4–20 mA (active or existing loop), 0–10 VDC
• Digital I/O: 4 digital inputs, 1 digital output (Relay NC/NO), pulse counting on input 4 (max 2 Hz)
• Serial: RS485 (configuration and non-bidirectional communication)
• Combined configuration available: 6× PT100/PT1000 plus 1× 4–20 mA in a single unit
• Operating frequencies: 868 MHz (EU), 902–928 MHz (US), 920–923 MHz (Asia-Pacific)
• RF performance: +14 dBm TX / -137 dBm RX (EU); +19 dBm / -130 dBm (US)
• Configurable transmission cycles from 1 second to 30 days, with differential data compression for maximum autonomy
• IP65/IP67 rated for outdoor and offshore environments
• Operating temperature: -40°C to +60°C with the standard BL-02 battery, or up to +80°C with the BL-01 high-temperature battery (on request)
• Available in rugged aluminum or plastic housing
• Designed and manufactured in Italy by Solexy

Available accessories

• BL-02 standard battery pack (3.6V / 7,200 mAh)
• BL-01 extended-temperature battery pack (3.6V / 5,200 mAh, on request)

Note: The LWI Series is fully configurable across housing material, digital and analog I/O, operating frequency, certification level, enclosure variant, and battery quantity. Please contact us for the right configuration code and a tailored quote based on your sensor and deployment requirements.