The bus digital tube display gas detection transmitter is an instrument produced by our company that can continuously detect the concentration of toxic, harmful, flammable, and explosive gases in the working environment. The detector detects gas concentration through natural diffusion, using imported sensors with excellent sensitivity and repeatability; The instrument adopts embedded microcontroller technology with high reliability. This instrument is controlled by a program, with adjustable parameters, adjustable alarm points, and adjustable alarm modes, making it convenient for users to use. Can be used as a standalone alarm system with collection, display, and alarm functions; Or it can be used as a detection part of other alarm systems, with digital and analog signal output functions. The instrument is equipped with a relay output module that can output relay switch signals. It can be connected to explosion-proof warning lights or other external devices. The red high brightness digital display provides a more intuitive on-site display, making it convenient for users to determine gas leakage and effectively preventing accidents.

Basic Parameters:
Dimensions: 144mm × 190mm × 91mm
Weight: Approximately 1355g
Sensor type: Electrochemical type (catalytic combustion type for combustible gas, otherwise specified)
Detecting gases: oxygen (O2), combustible gas (EX), toxic and harmful gases (CO, H2S, NH3, CL2, etc.)
Response time: Oxygen ≤ 30s; Carbon monoxide ≤ 40s; Combustible gas ≤ 20s; (others omitted)
Working mode: Continuous operation
Working voltage: DC24V
Output signal: 4-20mA; 485 digital signal
Output mode: Three wire system (LCD toxic gas is a two-wire system)
Control signal: switch output, maximum load 250V AC 3A (optional)
Repeatability: less than 2%
Range drift: less than 5%
Indication error: relative error less than 5%
Temperature range: -20 ℃ to 50 ℃
Humidity range: 15% to 90% (RH) without condensation
Wiring method: correspond one by one according to the instructions
Transmission cable: Three wire system using three core shielded cable 3 × 1.5mm (digital tube) Two wire system using two core shielded cable 2 × 1.5mm (LCD) Transmission distance: less than 1000m