Point-Type Oxygen Alarm for Oxygen Deficiency and Oxygen Enrichment Monitoring in Petrochemical Plant Areas - SKA/O2-BJQ
Detection principle: electrochemical oxygen sensor, natural diffusion sampling
• Detected gas: oxygen O₂
• Range: 0～30%VOL (standard industrial range); optional 0～25%VOL
• Resolution: 0.1%VOL
• Measurement accuracy: ≤±0.5%VOL
• Response time: T90 ≤30s
• Alarm thresholds (customizable, national standard defaults)
◦ Low alarm: 19.5%VOL (oxygen deficiency alarm)
◦ High alarm: 23.5%VOL (oxygen enrichment alarm)
• Sensor lifespan: 2～3 years
Product Introduction
Point-Type Oxygen Alarm - Product Overview
The point-type oxygen alarm is a fixed gas detection device used for oxygen deficiency and oxygen enrichment monitoring in petrochemical plant areas. Search keywords: point-type oxygen alarm, petrochemical plant area monitoring, oxygen alarm. This alarm can continuously detect oxygen concentration in the plant area. When the concentration falls below or rises above the set threshold, it emits audible and visual alarms and outputs switch quantity signals to link ventilation or shut down the plant. In oxygen deficiency and oxygen enrichment monitoring in petrochemical plant areas, the point-type oxygen alarm can reflect on-site oxygen risks in real time, helping operators respond promptly and preventing suffocation and oxygen-enriched combustion accidents.
Point-Type Oxygen Alarm - Working Principle
The point-type oxygen alarm typically uses electrochemical sensors or paramagnetic oxygen sensors, outputting electrical signals by detecting oxygen concentration and calculating the oxygen volume percentage. In oxygen deficiency and oxygen enrichment monitoring in petrochemical plant areas, the point-type oxygen alarm converts detection signals into 4-20mA, RS485, or Modbus outputs, which can be connected to PLC, DCS, and gas alarm control systems. This alarm has zero calibration and span calibration functions, with protection ratings up to IP65 or IP66, suitable for outdoor and explosion-proof environments in petrochemical plant areas.
Point-Type Oxygen Alarm - Application Scenarios
The point-type oxygen alarm is widely used in petrochemical, coal chemical, refining, and natural gas processing plant areas. In oxygen deficiency and oxygen enrichment monitoring in petrochemical plant areas, the point-type oxygen alarm can be installed near reactors, heating furnaces, heat exchangers, and compressors, as well as along personnel inspection routes. The alarm can be linked with exhaust fans, shut-off valves, and fire protection systems for automatic response. For large plant areas, point-type oxygen alarms can form a multi-point monitoring network, uniformly uploaded to the control room.
Point-Type Oxygen Alarm - Technical Advantages
The point-type oxygen alarm features fast response, good stability, and strong anti-interference capability. In oxygen deficiency and oxygen enrichment monitoring in petrochemical plant areas, the point-type oxygen alarm uses industrial-grade sensors and explosion-proof housings, suitable for flammable and explosive environments. This alarm supports audible and visual alarms, remote output, and fault self-diagnosis, making maintenance convenient. When selecting a point-type oxygen alarm, attention should be paid to detection range, accuracy, response time, explosion-proof rating, and output signals to ensure it meets the monitoring needs of petrochemical plant areas.
Main Application Areas
- Petrochemical Plant Areas — Continuous oxygen monitoring in process units to prevent oxygen deficiency or enrichment hazards.
- Confined Spaces — Oxygen level monitoring in tanks, vessels, and other confined spaces before and during entry.
- Laboratories — Detection of oxygen deficiency or enrichment in laboratory environments using inert gases or oxygen.
- Pharmaceutical Manufacturing — Oxygen monitoring in cleanrooms and production areas where oxygen levels affect product quality and safety.
- Metallurgy & Welding — Oxygen concentration monitoring in welding and metal processing areas to prevent fire and explosion risks.
Keywords：point-type oxygen alarm, oxygen deficiency monitor, oxygen enrichment detector, petrochemical gas detector, fixed oxygen alarm, O2 gas transmitter, industrial oxygen monitor, electrochemical oxygen sensor
