Digital Gas Transmitter

A digital gas transmitter is a device used to measure and transmit data about the concentration of a specific gas in the air or a particular environment. These transmitters are commonly used in various industries, including industrial manufacturing, oil and gas, chemical processing, environmental monitoring, and indoor air quality control.Heres how a typical digital gas transmitter works: 1. Gas Sensing Element: The transmitter contains a gas sensing element that is specific to the target gas. This sensing element is designed to interact with the gas of interest and produce an electrical signal proportional to the gas concentration.2. Signal Processing: The electrical signal from the gas sensing element is processed by internal circuitry. In a digital transmitter, this processing is often done by an onboard microcontroller or digital signal processor (DSP).3. Calibration and Compensation: To ensure accuracy and reliability, the digital transmitter is usually calibrated before deployment. Calibration involves exposing the sensor to known gas concentrations to create a baseline reference for accurate measurements. Additionally, the transmitter may compensate for temperature, humidity, and other environmental factors that could affect the gas sensors performance.4. Digital Communication: As the name suggests, digital gas transmitters communicate data digitally. They may use various communication protocols, such as Modbus, HART, Profibus, Foundation Fieldbus, or proprietary protocols, to transmit the gas concentration data to a central control system or a monitoring station.5. Display and User Interface (Optional): Some digital gas transmitters come with a built-in display and user interface, allowing operators to see real-time gas readings, configure settings, and access diagnostics locally.6. Alarm Outputs: Digital gas transmitters often have programmable alarm outputs. If the gas concentration exceeds pre-set thresholds, the transmitter can trigger visual or audible alarms or send signals to safety systems, initiating emergency procedures.7. Power Supply: The transmitter is typically powered by a stable power source, such as 24V DC, provided by the control system or an external power supply.Advantages of Digital Gas Transmitters: 1. Higher accuracy and reliability compared to analog gas detectors.2. Digital communication allows for more straightforward integration into control systems and SCADA (Supervisory Control and Data Acquisition) systems.3. Advanced diagnostic capabilities to monitor sensor health and system status.4. Easy configuration and remote monitoring possibilities.Digital Gas Transmitter Specifications: Controllers DCS,PLC & Ambetronics Power Less than 3.6 Watts. Output Value 4-20mA / 20-4mA Application Gas Metering,Oil & Gas Industry,Burner / Furnace Areas. Brand Ambetronics Depth 125 mm Material Cast Aluminium alloy,LM-6 Height 190mm (H) with sensor holder Product Weight Approx 2.53 Kg Mounting Wall Mounting / Stand Mounting / Pipe Mounting Protection Type IP-66 and for Zone 1 & 2 Gas Group IIC atmosphere; CMRI tested enclosure Rated Supply Voltage Typically 24VDC Supply Voltage Limits 18 to 36 VDC Width 215 mm (W) with stopper plug & cable gland Temperature resistant Up to 150 deg C Standard IP-65.

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