the self-rescuer [1] is a kind of respiratory protective device that is carried by people entering the well to prevent harmful gas poisoning or hypoxia asphyxiation when fire, gas, coal dust explosion, coal and gas outburst occur underground.A self - rescuer is a small, lightweight, portable device that protects the respiratory organs of individuals.The main purpose of the rescue is that when an accident happens in a coal mine, the miners can quickly leave the disaster area by wearing it through a tunnel filled with harmful gases.According to its working principle, the self-rescuer can be divided into filter type and isolation type.According to the principle of oxygen generation, the isolated self - rescuer can be divided into two types: chemical oxygen self - rescuer and compressed oxygen self - rescuer.The structure, working principle and matters needing attention of filter type self - rescuer, chemical oxygen self - rescuer and compressed oxygen self - rescuer are introduced in detail. Production Rescuer Equipment,Self Rescuer Breathing Apparatus,Rescue Equipment,Mining Self Rescuer Equipment Jining Dongda Electromechanical Co.,Ltd. , https://www.coal-mine-equipment.com
Supports POE-powered RJ45 network port temperature and humidity sensor APEM-5900, with a large-screen LCD display, while supporting plug-and-play POE power supply, easy installation and maintenance.
Supports POE-powered RJ45 network port temperature and humidity sensor APEM-5900, can provide network data access and alarm information of the active upload, with a local sound and light alarm function, with the monitoring software or cloud service platform to form a complete environmental monitoring network, is the server Computer room, factory building, drug warehouse, aquaculture and other environmental monitoring equipment preferred.
The RJ45 network port temperature and humidity sensor APEM-5900, which supports POE power supply, has enough upgrade space to continuously meet the latest needs of customers and markets. At the same time, our engineers provide the most comprehensive technical support to ensure the smooth application of the product.
Technical indicators
Ø High precision Swiss imported temperature and humidity sensor, high measurement accuracy, maintenance-free Ø100MHz Ethernet, AUTOMDI/MDI-X
Ø Overall dimensions: 115X130X40(mm)
Measurement range and accuracy
Ø Humidity measurement resolution: 0.1% RH
Ø Humidity measurement range: 0.1% to 100% RH (non-condensing)
Ø Humidity measurement accuracy: ±3.0% RH (typical, customizable ± 2.0% RH)
Ø Temperature measurement resolution: 0.1°C
Ø Temperature measurement accuracy: ±0.5°C (typical)
Ø Temperature Measurement Range: -25°C～+85°C
Support TCP, UDP, SNMP, ARP, DHCP and other network protocols
Ø Support SNMP protocol V1/V2
Ø Support MODBUS-TCP protocol (TCP)
Ø Support MODBUS-RTU protocol (UDP)
Ø Support DDNS (dynamic domain name resolution)
Ø Support MODBUS communication protocol and secondary development Ø Support data active uploading: Active upload of data to the specified IP server
Support alarm threshold setting and sound and light alarm Ø Can set temperature and humidity upper and lower limit and alarm hysteresis Ø Self-contained sound and light alarm Ø Support TRAP alarm
Power supply method ØIEEE802.3af, POE
Ø External DC12~48V
Supports POE-powered RJ45 network port temperature and humidity sensor APEM-5900, support TCP / UDP / SNMP and other communication protocols, open communication protocols, user-friendly secondary development and application, and seamless with a variety of comprehensive management platform Docking is ideal for modern networked environment monitoring applications.