AQ 3062-2025 Core Oxygen Analysis Requirements:

AQ 3062-2025 addresses the pain points of frequent accidents in the fine chemical industry and clarifies the rigid requirements for oxygen content monitoring, covering key nodes in the entire production process

High risk process scenarios: 14 types of high-risk reaction vessels such as nitrification and chlorination require real-time monitoring of oxygen content, with an accuracy of ≤± 3% F.S and a response time of ≤ 10 seconds. If exceeding the standard, interlock control must be triggered.

Special operations and storage: When separating flammable and explosive materials using a centrifuge, interlocking is required to cut off the feed; The warehouse of major hazard sources needs to monitor the environmental oxygen content within the range of 0-25% VOL.

Process protection scenario: In the inert gas protection process, the oxygen content in tail gas treatment, pipeline transportation, and other processes needs to be controlled within ≤ 2% VOL.

Equipment safety requirements: compliant explosion-proof equipment must be used in explosive hazardous areas, supporting linkage with DCS and PLC systems, and data traceability.

　　Nuoke Instrument Compliance Adaptation Solution:

Xi'an Nuoke Instrument has launched a series of targeted oxygen analyzers, which fully comply with the AQ 3062-2025 standard from technical principles to functional design, covering different working conditions.

　　Core product technology advantages:

High precision sensing technology: The sensor adopts imported products or imported light sources to ensure detection accuracy.

Multi scenario adaptation capability: single point wall mounted, multi-channel inspection, with optional principles such as electrochemistry, magnetic oxygen, laser, etc., suitable for different working conditions.

Safe and compliant design: ExdIICT6 meets the requirements for use in explosive hazardous areas, with a protection level of IP65, supports 4-20mA current output and RS485 communication, and can be directly connected to the enterprise DCS system for interlocking control.

Cost optimization plan: The multi-channel inspection system can simultaneously monitor 6 reaction vessels, reducing equipment investment. The in-situ installation design eliminates complex preprocessing steps and reduces maintenance costs.

　　Full process security monitoring coverage:

Reaction process monitoring: For high-risk processes such as nitrification and chlorination, the laser oxygen analyzer captures real-time fluctuations in oxygen content, triggers emergency shutdown devices immediately when exceeding the standard, and avoids material exposure to air causing explosions.

Storage safety protection: Deploy explosion-proof oxygen analyzers in combustible material warehouses to monitor environmental oxygen content in real time and prevent the risk of oxygen deficiency caused by inert gas leakage or the risk of explosion caused by excessive oxygen.

Special operation guarantee: Before confined space operations and hot work operations, portable analyzers are used to quickly detect oxygen content, and continuous monitoring is carried out during the operation process to ensure compliance with GB 30871 special operation safety requirements.

Tail gas treatment monitoring: For inert gas protection processes, precise control of tail gas oxygen content ≤ 2% VOL to prevent oxidation reactions.