4 20mADC Output Current KTG170 Ultraviolet Analyzer for H₂S Measurement Customizable Range

KTG170 Ultraviolet Analyzer

Basic Principle

The principle of using high-precision absorption spectroscopy technology to measure sulfur gases is based on the Beer-Lambert law. It utilizes the characteristic absorption spectra of gases such as hydrogen sulfide, methanethiol, dimethyl sulfide, and dimethyl disulfide. Differential absorption spectroscopy technology is employed to eliminate interfering components, and then the concentrations of each gas are inversely calculated according to the characteristic differential absorption spectral signals of each component gas.

Technical Parameters

Medium: Natural gas

Pressure: 0.05 - 0.5 Mpa

Ambient temperature: -20 - 50℃

H₂S: 0 - 30 PPm (The measurement range can be customized according to customers' requirements)

Output current: 4 - 20mADC

Power supply: Rated voltage 220V±22V, frequency 50Hz±5Hz

Sample gas interface: Φ6×1

Analog output: 2 channels of 4 - 20mA

Contact output: 4 channels (programmable)

Digital output: 2 channels of RS485 interfaces, using Modbus protocol

Explosion-proof Parameters

Explosion-proof grade: ExdIICT6

Protection grade: IP65

Overall dimensions: 505490235

Weight: Approximately 25Kg

Instrument Features

• Strong corrosion resistance. All parts in contact with the sample gas are made of corrosion-resistant materials.
• Data can be transmitted to the superior centralized control system of the gas production plant through multiple interfaces.
• It can replace electrochemical gas analysis technology and gas chromatographs, with a long service life, high cost performance, and low maintenance cost.
• Large-screen LCD display, full Chinese menu operation, with operation prompt function, making the operation simple and convenient.
• Automatic switching of multiple ranges, and the intermediate range can be set.
• All-digital processing makes it more accurate, stable and reliable.
• It has soft start and watchdog functions to ensure the reliable operation of the instrument for a long time.
• The output is synchronous and isolated (0/4 - 20)mA, and the output load is 250Ω.
• It has completely independent status output signals such as calibration, fault, alarm, and range conversion.
• The explosion-proof product uses a special flame-proof explosion-proof housing and can be used in explosive environments of Zone 1 and Zone 2.