1. What can LoRaWAN sensors monitor in refinery operations?
LoRaWAN sensors can monitor many refinery field points, including rotating equipment vibration, pipeline pressure, process temperature, PRV activity, tank farm conditions, gas leakage, VOCs, ambient humidity, equipment status and pulse signals from meters. They are useful where assets are widely distributed and where new signal cabling is expensive, slow or difficult to modify. Final device selection should match the measurement point, hazardous-area classification and integration requirement.

2. Why use LoRaWAN instead of wired sensors in a refinery?
LoRaWAN can reduce the need for long cable runs, trenching, junction boxes and I/O expansion for distributed monitoring points. It is especially practical for tank farms, remote utility areas, pipeline sections, perimeter points and retrofit monitoring projects. Wired systems are still preferred for high-speed control or critical safety shutdown functions, while LoRaWAN is better suited for periodic monitoring, alarms, trend data and condition-based maintenance.

3. Is LoRaWAN suitable for hazardous-area refinery applications?
LoRaWAN can be used in hazardous-area monitoring when the selected sensor, gateway and installation method match the required zone classification and certification. For refinery projects, device selection should be checked against Zone 1 or Zone 2 requirements, gas group, temperature class, enclosure type, process connection and installation rules. Daviteq provides Ex d / Ex ib product options for suitable hazardous-area monitoring use cases.

4. Which refinery assets are good candidates for wireless monitoring?
Good candidates include pumps, motors, compressors, fans, pipelines, pressure vessels, LPG/CNG tanks, PRVs, storage tanks, flow meters, energy meters, utility stations, substations and field stations. These assets often need additional visibility but may not justify expensive cabling for every point. Wireless monitoring is strongest when the application needs reliable periodic data rather than real-time closed-loop control.

5. Can LoRaWAN support PRV or relief valve monitoring?
Yes. Acoustic monitoring can help detect PRV activity, acoustic events, vibration and temperature changes related to relief valve operation. This can support maintenance planning, event verification and safety-related visibility. The solution should be designed around the PRV location, background noise, mounting method, hazardous-area classification, gateway coverage and the required alarm or reporting workflow.

6. Can LoRaWAN be used for rotating equipment condition monitoring?
Yes. LoRaWAN vibration sensors can support condition monitoring for pumps, motors, compressors and fans, especially where the goal is trend monitoring, abnormal vibration alerts and predictive maintenance. For detailed rotating equipment analysis, the sensor type, sampling method, reporting interval, machine speed, mounting location and required vibration features should be reviewed. LoRaWAN is best used as part of a broader reliability monitoring architecture.

7. How does refinery LoRaWAN data integrate with SCADA, DCS or cloud systems?
Field sensors send data to an outdoor or Ex d LoRaWAN gateway, then to an embedded or external LoRaWAN network server. From there, data can be routed to dashboards, cloud platforms, SCADA, DCS, PLC or business applications. Common integration paths include Modbus, MQTT, API, Node-RED and DORA™ / OT connectors, depending on the customer’s existing automation and IT architecture.

8. Can existing meters, analyzers or RS485 devices be connected to LoRaWAN?
Yes. Existing RS485 field devices such as meters, analyzers and flow computers can often be connected through a LoRaWAN RS485 master node. Pulse outputs and dry contacts from meters, pumps, valves or auxiliary equipment can be connected through digital input nodes. This allows refinery teams to retrofit wireless data collection while keeping many existing field instruments in place.

9. What should be checked before deploying LoRaWAN in a refinery?
Key checks include hazardous-area zone, gas group, temperature class, measurement range, process connection, enclosure rating, mounting method, distance to gateway, antenna location, reporting interval, expected battery life and data destination. For gateway deployment, backhaul options such as Ethernet or LTE should also be reviewed. A site survey or coverage test is recommended for large plants or dense metallic environments.

10. How can Daviteq support refinery LoRaWAN project selection?
Daviteq can help review the measurement point, asset type, hazardous-area requirement, distance to gateway, update interval, integration destination and installation constraints. Based on this information, Daviteq can recommend suitable sensors, I/O nodes, gateways and data integration paths. For refinery projects, final selection should always be validated against the applicable hazardous-area certification and site installation standards.