Gas Detection Control Panel 1~32 Channels

The Gas Detection Control Panel utilizes a 7-inch TFT LCD display and an industrial PLC controller. The display features a 260,000 true color display and a four-wire resistive touchscreen, ensuring precise touch accuracy, durability, and a long touch life.

The Gas Detection Control Panel’s human-computer interaction is achieved through the touchscreen functionality of the 7-inch TFT touchscreen. Equipped with a high-performance Cortex A8 processor with a clock speed of up to 600MHz and built-in 128M Flash, it can store large amounts of data. It supports exporting historical data and alarm history to a USB flash drive, facilitating subsequent data analysis.

★★★★★

  • Short delivery time
  • Better price
  • Customizable parameters

Features

  • Password login to prevent unauthorized operation;
  • Flexible channel configuration for user-friendly and flexible configuration;
  • Historical data query and USB flash drive export;
  • Historical alarm query and USB flash drive export;
  • Configurable historical data recording interval;
  • Historical data clearing, historical alarm clearing, and factory reset;
  • Configurable four alarm modes;
  • Time display and setting;
  • Password change;
  • Supports up to 32 485 devices and 16 4-20mA devices simultaneously;
  • Real-time and historical trend charts for enabled channel data, allowing users to intuitively view data trends;
  • The PLC has 8 passive dry contact outputs and can be equipped with relay expansion modules to meet user needs.

Specifications

Input powerAC220V
Output powerDC24V
Power consumptionLess than 7W
Measurement unitppm, ppb, %LEL, %VOL, mg/m³, mg/L, g/m³, μg/m³, %rh, °C, MPa, kPa, Pa, etc.
Mounting methodWall-mounted
Alarm settingFour freely adjustable settings
Receive signal4-20mA, RS485 (standard Modbus protocol)
Alarm methodBuzzer alarm and real-time alarm information display (external alarm light connection available)
Storage functionStorage of 2000 alarm records; storage of 100,000 historical data items; alarm records and historical data can be exported via USB flash drive
Output contactPLC includes built-in normally open contacts with a contact capacity of 24VDC/10A or AC220V/1A, and relay expansion modules with a contact capacity of 30V/3A or 250V/3A. Output contacts are configurable.
Temperature0-55°C
Humidity10-90%RH

This product is wall-mountable and features four screw holes on the back. The larger holes are 11mm, the smaller holes are 5mm, and the hole spacing is 250mm x 218mm.

First, secure the wall-mounting structure to the wall in place, connect the power cable, signal cable, and output control cable, and then hang the alarm on the structure.

Chassis dimensions: 330 x 270 x 115mm (L x W x H), with a left-opening door.

Gas Detection Control Panel Multi-Channel
Gas-Detection-Control-Panel-Application

Applications

The multi-channel gas alarm controller is a multi-point monitoring gas alarm system developed by our company, which consists of a controller and one or more detectors.

The alarm controller’s CPU cyclically monitors the detectors’ operating status. When the ambient gas concentration detected by the detectors exceeds the alarm setpoint, the controller generates audible and visual alarms and outputs linked control signals based on the settings.

It is suitable for industrial gas process control, boiler rooms, waste treatment plants, tunnel construction, oil pipelines, gas stations, underground gas pipeline maintenance, and indoor air quality monitoring.

Technical Support

Gas detectors may experience a range of malfunctions during use, often stemming from a variety of reasons.

  1. The impact of environmental factors on gas detectors cannot be ignored.

Especially in high-temperature environments or near heating equipment, the electronic components within the instrument may experience changes in resistance due to temperature fluctuations, affecting measurement accuracy.

  1. Installation issues are also a common cause of malfunctions.

If proper grounding is not performed during installation, the instrument may be subject to electromagnetic interference and static electricity during use. This can lead to frequent malfunctions over time.

  1. Lack of maintenance is also a significant factor in gas detector malfunctions.

Because the probe is directly exposed to the gas environment, it is easily exposed to dust and contaminants, which can damage the probe, resulting in significant measurement errors or even failure to detect gas.

  1. Unauthorized disassembly of the instrument by the user can also contribute to malfunctions.

Attempting to repair minor problems yourself can exacerbate the problem due to improper operation.

  1. As the core component of a gas detector, the sensor has a limited lifespan. After prolonged use, the sensor’s sensitivity gradually decreases, affecting the detection results.
  2. For pump-type gas detectors, damage to the aspiration pump is also a common cause of aspiration failure.
  3. A harsh operating environment, such as one with excessive dust and oil, can also contaminate the gas detector, leading to malfunction.
  4. Severe vibration can also damage the instrument. Therefore, when using a gas detector, avoid placing it in an environment with high vibration.
  5. Fluctuations in ambient temperature and humidity can also affect measurement accuracy.
  6. Long-term use without calibration and testing can also cause instrument accuracy errors.

To avoid these problems, users should strictly follow the manufacturer’s instructions for regular calibration and maintenance. Ensure the suitability of the operating environment and avoid disassembling the instrument for repairs. Furthermore, care should be taken to avoid the effects of severe vibration and high temperatures on the instrument during use.

It’s possible to calibrate gas detectors yourself. Calibrating a gas detector is crucial so it can provide accurate measurements when you need it.

Gas detectors require calibration gas of a standard concentration. You can purchase pre-made calibration gas or create your own gas mixture of a standard concentration, but this typically requires considerable expertise.

The steps for calibrating using calibration gas with a standard oxygen concentration are as follows:

Step 1: Turn on the gas detector and wait for it to fully turn on. This typically takes several minutes as it warms up.

Step 2: Place the gas detector next to the calibration gas cylinder, but do not connect it to the cylinder.

Step 3: Place the detector in calibration mode and follow the instructions in the manual to enter calibration mode on the display.

Step 4: Connect the calibration gas to the calibration port on the detector and turn on the cylinder.

Step 5: Wait for the detector reading to stabilize and ensure it displays the standard gas concentration.

Step 6: Turn off calibration mode according to the instructions in the manual.

The gas detection system primarily operates in the following ways:

The gas detector detects gas concentrations in the air, converts them into digital signals, and transmits them to the monitoring and alarm control system via a connecting cable.

The monitoring and alarm controller converts the electrical signals into digital signals and displays the gas concentration on an LCD.

When the detected value exceeds the set alarm threshold, the alarm host communicates with the industrial computer via RS485 signals. All detection and alarm information is transmitted to the central control room via Ethernet for centralized monitoring.

Different types of gas sensors (such as semiconductor, electrochemical, and infrared absorption) utilize different physical and chemical principles for gas detection. This ensures that the gas detection system can effectively monitor and generate alarms, ensuring safety.

Read more about: Common Gas Sensor Technologies

To determine whether a gas detector is operating properly, consider the following methods:

  1. Calibration and Calibration Certificate: Ensure that the gas detector is calibrated regularly and review the calibration certificate to confirm its accuracy.
  2. Zero and Span Check: Verify that the detector’s zero is correct without the gas to be detected. Then, perform a span check using a standard gas of known concentration to verify that the detector accurately measures and displays the corresponding concentration.
  3. Response Time: Observe the detector’s response time to changes in gas concentration. A fast response time helps detect gas leaks or abnormal concentrations promptly.
  4. Stability and Repeatability: Perform multiple measurements and compare the results to verify that the detector’s measurements are stable and repeatable. Large fluctuations in the results may indicate a problem with the detector.
  5. Comparison with Other Detection Methods: Compare the gas detector’s measurement results with other reliable detection methods, such as chemical analysis or other known accurate detection equipment.
  6. Alarm Function: Verify that the detector’s alarm function, including the audible and visual alarms and the corresponding alarm settings, is functioning properly. 7. Regular maintenance and inspection: Perform regular maintenance and inspections according to the manufacturer’s recommendations, including cleaning the sensor and replacing batteries.

In summary, determining the proper performance of a gas detector requires comprehensive consideration of multiple aspects. Only in this way can problems be discovered and resolved promptly, ensuring the proper functioning of the gas detector and providing effective protection for people’s lives and health.

5 Essential Factors for Choosing Multi Gas Detectors

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Multi-gas detectors simultaneously measure multiple gases, typically including oxygen (O₂), combustible gases (LEL), carbon monoxide (CO), and hydrogen sulfide (H₂S), which are common threats in industrial environments and confined spaces….

The Gas Detection Control Panel is a centralized gas concentration monitoring and leak alarm controller. It can be connected to our various bus-based gas detectors and supporting external control devices. It provides safety monitoring and early warning for flammable and toxic gases, and is widely used in municipal, gas, and industrial and commercial gas applications.

When the concentration of the detected gas in the ambient air reaches or exceeds the preset alarm threshold, the controller immediately issues an audible and visual alarm, prompting prompt action for safety measures. It also controls exhaust ventilation and other peripheral equipment to prevent fires and protect lives and property.

Sino-Inst is a professional manufacturer of gas detection alarms, flammable, explosive, and toxic gas detection and alarm equipment, environmental monitoring and analysis instruments, and water quality analyzers. We can provide you with complete industrial safety and environmental monitoring systems. Please feel free to contact our sales engineers!

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