The GTYQ-SD2100A/GTQ-SD2100A/GQ-SD2100A series of point-type gas detectors (hereinafter referred to as detectors) are intelligent bus and branch line products. Together with the matching controller, they form a gas alarm detection system to conduct real-time detection of target gases that may exist in the working environment and display the real-time gas concentration on site. When the concentration exceeds the limit, the controller will issue an audible and visual alarm signal.
Introduction to 2100A Series Products
Product Technical Parameters
| Detected gas: | Methane/propane |
| Detection principle: | Catalytic combustion type/semiconductor |
| Sampling method: | Diffusion type |
| Measurement range : | (3 to 100)%LEL or others |
| Alarm setting value (default for flammable gas): | The lower limit is 25%LEL and the upper limit is 50%LEL ⚠ |
| Alarm error : | ±3%FS |
| Response time: | For flammable gas, ≤30 seconds (T90) |
| Power consumption : | <3W(DC24V) |
| Protection grade : | IP66 |
| Explosion-proof grade : | ExdIICT6Gb |
| Communication methods : | S-BUS bus &4-20mA branch line system |
| Sensor service life: | Three years (typical catalytic value) |
| Storage environment: | Temperature 0℃ to +35℃, relative humidity 25%RH to 70%RH |
| Operating environment: | Temperature -40℃ to +70℃, relative humidity <93%RH, ambient atmospheric pressure 86kPa to 106kPa |
| Explosion-proof cable entry interface: | The outer diameter of the conductor is 9-10mm |
| Threaded interface size : | G3/4 |
| Product weight: | Approximately 733g |
| Product dimensions : | 150mmx135mm x 66.5mm |
Product Features
- Compatible with S-BUS bus system and 4-20mA branch line system, facilitating system design and expansion.
- Controlled by an infrared remote control, on-site operation does not require opening the cover.
- Independent indicator lights indicate that the equipment is normal, faulty or has an alarm.
- Equipped with a built-in interlocking control output, which can control on-site sound and light or fans/valves.
- The double-exit structure facilitates on-site construction.
- Equipped with an internal temperature detection function to ensure accurate and effective detection of the product in various temperature environments.
Indicator Light Indication Description
The 2100A product is equipped with an independent indicator light that shows the normal, alarm and fault status of the product through different colors.
Normal state: The indicator light is in a green flashing state
Alarm status: The indicator light is in red
● Low limit alarm: Red flashing
● High limit alarm: Red remains bright
Fault status: The indicator light is yellow and constantly on
Product Installation and Wiring Instructions
The 2100A product can be installed in four ways - horizontal pipe, vertical pipe, ceiling or wall-mounted - according to the environmental conditions of the usage site, adapting to different scenarios.
Terminal diagram and wiring table
Product Usage
Wiring
Connect the wires correctly according to the requirements of the detector's terminal blocks. Confirm that the connections are correct and good, the grounding is good, and there are no short circuits or open circuits.
Power on the detector
After the detector wiring is completed, perform a power-on self-check, and the indicator light will flash in a cycle for 60 seconds.
Key operation
Detector Zeroing
Before zeroing, it should be ensured that the detector is operating in clean air. ℹ
- Step 1. : Press the "Lock/Mute" key twice in a row on the normal monitoring page. The normal indicator light will flash rapidly for 3 seconds to release the remote control lock.
- Step 2. : Press the "Zero Calibration" key to enter the detector zero calibration page, and the normal indicator light will flash rapidly.
- Step 3. : Press the "OK" key to perform the detector zero calibration operation and return to the normal monitoring page.
Detector Calibration
Monitor the detection concentration of the detector using the accompanying controller.
- Step 1. : Press the "Lock/Mute" key twice in a row on the normal monitoring page. The normal indicator light will flash rapidly for 3 seconds to release the remote control lock.
- Step 2. : Press the "Function" key to enter the detector's arbitrary concentration calibration page, and the alarm indicator light will flash rapidly.
- Step 3. : Introduce the standard gas, observe the detection concentration through the controller, and set the detection concentration value to be equal to the concentration value of the standard gas by pressing the remote control button. Press the "Left" and "Right" keys to perform a rough adjustment. Press the "Up" and "Down" keys to fine-tune.
- Step 4. : After adjusting to the detection concentration value of the detector to the standard gas concentration value, press the "OK" key to save the current setting data and return to the normal monitoring page. Press the "Back" key to abandon the current setting value and return to the normal monitoring page.
Note: During calibration, use standard gas with air as the base gas. Pass it through the calibration hood at a flow rate of 0.3 to 0.5L/min for 60 seconds until the display stabilizes.
Precautions
- (!) Do not use a lighter or other high-concentration pure gas to inflate the sensor, as this may cause deviations in the concentration detection values of the equipment over a period of time.
- (!) Falls from heights, strong impacts or direct flushing of the sensor with a high-pressure water gun may cause damage to the sensor.
- (!) Before product inspection and verification, it should be powered on and aged for more than 48 hours in clean air.
Media Contact
Company Name: Sichuan Shield Technology Co., Ltd.
Email: Send Email
Country: China
Website: https://www.safety-shield.com/
