Background:

Carbon monoxide (CO) is the main occupational hazard in metallurgical and steel enterprises, with multiple operating points, wide distribution range, and a wide range of people in contact. Gas poisoning accidents occur frequently every year, and the harm it brings to the happiness of workers and families is far-reaching.

The impact of carbon monoxide (CO) concentration on the human body:

The allowable exposure concentration is 50ppm, which can be exposed for 8 hours (OSHA).

200ppm may cause mild frontal headaches within 2 to 3 hours.

Frontal headache and vomiting after 1 to 2 hours at 400ppm, dizziness after 2.2 to 3.5 hours.

Headache, dizziness, and vomiting within 45 minutes at 800ppm. Coma within 2 hours, possible death.

1600ppm: Headache, dizziness, and vomiting within 20 minutes. Coma and death within 1 hour.

Headache and dizziness within 5 to 10 minutes at 3200ppm. 30 minutes of unconsciousness, there is a risk of death.

6400ppm: Headache and dizziness within 1 to 2 minutes. 10 to 15 minutes of unconsciousness, with a risk of death.

12800ppm immediately imperceptible. There is a risk of death within 1 to 3 minutes.

The national regulations stipulate the maximum allowable concentration of carbon monoxide (CO):

1. Occupational exposure limits (GBZ22002)

Model selection:

MIC-500S-CO-A MIC-500S-O2-A

Product Features:

Explosion proof, lightning proof, anti-static, reverse discharge, anti EMI, EMC electromagnetic interference, anti pulse wave surge current impact

Compliant with the latest national standards and obtained qualifications such as CMC measuring instrument production license and explosion-proof certification

Three wire or two (four) wire 4-20mA standard signal output, voltage output, and 2 sets of relay switch values

Simultaneously equipped with standard bus RS485 output (RTU format) and optional integrated sound and light alarm.

Optional wired transmission, LAN, Internet, wireless transmission (2km, 5km, unlimited distance)

Wireless transmission options include 433 GPRS、WIFI、 other methods

Standard infrared remote control can operate without opening the cover in dangerous situations, with a remote control distance of 15 meters, simple and practical

Each unit can switch to each other, automatically track the zero point to prevent drift, and perform multi-level calibration. Support OEM or ODM customization

Can communicate with computers, monitor the concentration of on-site probes in real time through the upper computer, and store, analyze, and print data on the computer.

Detecting gases: carbon monoxide CO, oxygen O2

Sensor: Electrochemical

Instructions:

The system conducts 24-hour monitoring of hazardous gases in various potential hazardous areas of the steel smelting plant, and transmits a 4-20mA signal to the DCS system for centralized monitoring. On site detection of the generation of hazardous gases or a decrease in oxygen concentration will trigger sound and light alarm actions.

On site installation diagram: