WIKA NETRIS2 LoRaWAN Radio Unit 4 to 20 mA Hazardous Areas

Imagine a sensor that can send reliable data from a dangerous plant without wiring every meter. The WIKA NETRIS2 LoRaWAN Radio Unit 4 to 20 mA Hazardous Areas does exactly that. It turns a 4-20 mA signal into a secure LoRaWAN message, letting you monitor temperature, pressure or flow from a safe location. If you struggle with long cable runs, high maintenance costs, or the risk of exposing staff to explosive atmospheres, this unit gives you a safe, wireless bridge.

WIKA NETRIS2 LoRaWAN Radio Unit 4 to 20 mA Hazardous Areas

Industrial plants often need to measure analog signals in zones where sparks can cause explosions. The problem is getting those signals to a control room without running costly, heavy cables. This matters because any failure or delay can lead to unsafe conditions or production loss. The NETRIS2 wireless bridge solves it by converting the 4-20 mA loop into a low-power LoRaWAN transmission, protected by full end-to-end encryption and a battery that can last up to ten years. You get continuous data, no wiring, and peace of mind in hazardous areas.

Benefits

• Wireless data eliminates long, expensive cable runs.
• Battery life of up to ten years reduces maintenance visits.
• Built-in safety certifications let you install in explosive zones.
• Secure LoRaWAN encryption protects your process information.
• Easy integration with existing 4-20 mA sensors saves retrofit time.

Usages

Use the NETRIS2 to monitor pressure transmitters in oil refineries, temperature loops in chemical reactors, or flow meters in gas pipelines. It works well in oil-filled tanks, ventilation shafts, and outdoor pump stations where wiring is difficult. The unit can also serve as a backup link for critical alarms, sending a signal to the control center even if the main network fails. Its compact plastic case fits into tight panels, and the internal PCB antenna provides reliable range up to ten kilometres in open field.

Key Features

• Plastic case with IP55/57 protection.
• Battery: WIKA lithium thionyl chloride or hybrid capacitor, 3.6 V.
• Accuracy 0.1 % of span for 4-20 mA input.
• Internal PCB antenna, +14 dBm max transmission power.
• Typical range 10 km in free field.
• Full end-to-end encryption (LoRaWAN ).
• Short-circuit and reverse-polarity protection.
• Board connector with four pins for dual supply and dual signal.
• Operating temperature -30 C to +60 C, storage -40 C to +70 C.
• Vibration resistance a = 5 g (50-200 Hz) and shock resistance 25 g, 6 ms.
• Ex-rated: 26 V, 90 mA, 550 mW.
• Standard measurement interval 30 min, configurable via LoRaWAN commands.

Specifications