What Is a Hydrogen Sulfide Sensor?
Detcon MOS semiconductor technology hydrogen sulfide gas detector is designed to monitor the concentration of hydrogen sulfide gas in the ambient air. Its measurement range is from the standard 0-20 / 50 / 100ppm (adjustable at the work site) to the high measurement range type. 10,000ppm.
Hydrogen sulfide sensor
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- Chinese name
- Hydrogen sulfide sensor
- Adopt
- Solid metal oxide semiconductor sensing technology
- Feature 1
- long lasting
- Feature 2
- Low replacement and maintenance costs
- Detcon MOS semiconductor technology hydrogen sulfide gas detector is designed to monitor the concentration of hydrogen sulfide gas in the ambient air. Its measurement range is from the standard 0-20 / 50 / 100ppm (adjustable at the work site) to the high measurement range type. 10,000ppm.
- I. Description
- This product uses solid metal oxide semiconductor sensing technology. The sensor consists of two sheets: one is a heating sheet and the other is a gas-sensitive sheet that is sensitive to hydrogen sulfide gas. Both wafers are mounted on a silicon chip by vacuum coating. The heating plate raises the working temperature of the gas-sensitive plate to a level capable of reacting with hydrogen sulfide gas. There are metal oxides on the gas sensitive sheet, which can dynamically show the change of hydrogen sulfide gas concentration. Its sensitivity can range from one-billionth to one-hundredth. This product is sturdy and durable, and can maintain stable work for more than ten years in most industrial environments.
- Features
- l Rugged and durable, with strong resistance to severe weather
- l Long service life
- The longest warranty period for hydrogen sulfide gas detectors in the world
- l Low replacement and maintenance costs
- l Not affected by prolonged exposure to hydrogen sulfide
- Areas of Scope
- Where is Detcon's solid oxide semiconductor hydrogen sulfide detector most suitable?
- Bad weather
- l Desert and high temperature area
- l Sub-zero environment
- l Tropical and subtropical humid environment
- Harsh environment
- l Ocean operations
- l Oil and gas drilling operations
- l Where hydrogen sulfide gas often appears
- 4. Model introduction
- 1. (Standard 4-20MA output)
- Detcon's TP-424C is an explosion-proof detector with a cover. Operation is via a pointer meter on the signal transmitter faceplate. Detcon's TP-424C was launched in 1985 and has been improved in design over the years. One of the latest improvements is the addition of troubleshooting features. The fault diagnosis circuit can trigger the light-emitting diode when the heater or gas sensor is disconnected and synchronously change the 4-20mA output to 0mA. The plug-in module of the sensor signal generation circuit facilitates the upgrading of the product.
- l Linear 4-20mA output
- l Sensor fault diagnosis
- l Direct response, constant temperature control
- l Single person remote calibration
- l Field upgradeable according to MicroSafe smart detector standard
- 2,
- (Microsafe intelligent sensor, 4-20mA output, interference-free operation interface)
- Detcon's TP-524C smart detector uses MicroSafe software technology. The programming buttons under the glass cover can be operated via a hand-held magnetic programming tool. Interactive, continuous calibration prompts are displayed on a 16-bit LCD display. The transmitter is designed with integrated diagnostic functions. Every situation is easily displayed. The signal transmission module of the sensor is plug-in, which facilitates on-site maintenance. The TP-524 transmitter can be used to replace the existing TP-424.
- l Linear 4-20mA output
- l Integrated sensor fault diagnosis
- l Direct response, constant temperature control
- l Single person remote calibration
- l With sensor working life display
- l LCD display failure and calibration status
- l Non-interference control interface (via handheld magnetic programming tool)
- l Simple menu programming and calibration
- l 16-bit character LCD display with backlight
- 3. (Microsafe intelligent sensor, 4-20MA output, RS-485 communication interface, relay-free operation interface) Detcon's TP-624C intelligent detector is the most complete hydrogen sulfide sensor. This intelligent sensor uses Detcon's MicroSafe software technology. Use interference-free operation interface. All operations are menu-driven and can be performed with a handheld magnetic programming tool. The TP-624 provides flexible options for system establishment. Standard output includes 4-20mA output, RS-485 communication interface and 3 alarm relays. The sensor's signal transmission module is plug-in, which facilitates on-site maintenance.
- l Linear 4-20mA output, 3 alarm relays and RS-485 communication interface
- l Integrated sensor fault diagnosis
- l Direct response, constant temperature control
- l Single person remote calibration
- l With sensor working life display
- l LCD display failure and calibration status
- l Non-interference control interface (via handheld magnetic programming tool)
- l Simple menu programming and calibration
- l 16-bit character LCD display with backlight
- Five, technical characteristics
- l Field-replaceable plug-in electronic components
- The signal generator components of all TP series sensors are equipped with multi-pin plugs to facilitate quick replacement or upgrade on the job site. The gold-plated plug guarantees maximum corrosion resistance, and the sealed design provides moisture protection for the sensor.
- l Simple calibration (TP-524C & TP624C)
- The initial calibration of the sensor is automatic, just press twice on the handheld magnetic programming tool and take three minutes. No zero adjustment is required. The remaining life of the sensor is displayed during each calibration.
- l Intuitive user interface (displayed on TP-624C)
- In addition to the initial calibration, the user interface can also perform measurement range adjustments, heating and gas sensor voltage adjustments, calibration gas value adjustments, and alarm point adjustments. The "View Program Status" function on the display (ie, "See Program Status") displays all current parameters for viewing.
- l Temperature and humidity limits
- Detcon's solid-oxide semiconductor sensors are more adaptable to temperature and humidity than any other sensor. It is ideal for tropical, desert and other harsh climates.
- l Recovery speed after hydrogen sulfide test
- The solid oxide semiconductor type sensor can withstand high concentrations of hydrogen sulfide exposure, and it can quickly recover without harming its function. Electrochemical hydrogen sulfide sensors may be poisoned and permanently damaged by prolonged continuous exposure.
- l Long-term quality assurance / low purchase and maintenance costs
- Detcon's solid oxide semiconductor sensors are the industry's longest warranty period hydrogen sulfide sensors. The company's ten-year proportional quality guarantee saves users from the cost of expensive sensor replacement. In ten years, the replacement cost of semiconductor sensors only accounted for 26% of electrochemical sensors.
- Six, establish a system plan
- TP series hydrogen sulfide sensors provide users with many output signal selection schemes. Detcon's multi-channel controllers are based on microprocessors, programmable logic controllers, and microcomputers and can be applied to any system and network. The following are some typical system building schemes.
- l 4-20mA
- The sensor directly feeds the 4-20mA signal directly to the Detcon multi-channel controller. The controller repeatedly displays these signals and also provides backup relays and RS-485 outputs.
- l 4-20mA plus local relay
- The 4-20mA signal directly fed back to the Detcon multi-channel controller triggers an alarm or other response device along with the output signal from the relay. The controller also provides backup relays and RS-485 outputs.
- l RS-485 communication plus local relay
- The sensor (such as TP-624 type) is connected via the RS-485 communication bus to trigger an alarm or other response equipment together with the output signal of the relay. Detcon 880 programmable logic controller provides all data processing, display and historical records.
- l 4-20mA plus RS-485 communication bus
- The 4-20mA signal of the sensor is imported into the Detcon DA-1 data module to be converted into a signal that can be processed by RS-485. The DA-1 data module feeds data back to the Model 880 programmable logic controller. The controller provides all data processing, display and historical records. The Model 880 PLC can be further connected to a computer via a human-machine communication interface via Citect, Wonderware or other software.