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General| Display | LCD |
|---|---|
| Resolution (O2) | 0.1%VOL |
| Resolution (LEL) | 1%LEL |
| Resolution (CO) | 1ppm |
| Resolution (H2S) | 1ppm |
| Type | Portable Gas Detector |
| Gas Types Detected | Combustible Gas, Oxygen, Carbon Monoxide, Hydrogen Sulfide |
| Detection Technology | Catalytic combustion (Combustible Gas), Electrochemical (Oxygen, Carbon Monoxide, Hydrogen Sulfide) |
| Operating Temperature | -20℃ ~ 50℃ |
| Response Time (T90) | ≤30s |
| Measuring Range (LEL) | 0-100% LEL |
| Power Supply | Rechargeable lithium battery |
| Measurement Range (O2) | 0 ~ 30%VOL |
| Measurement Range (H2S) | 0-100 ppm |
| Alarms | Audible, visual, and vibration alarms |
Describes proper usage guidelines for the DF-8500 gas detector.
Outlines manufacturer's liability for product use and misuse.
Details essential safety precautions for installation, operation, and maintenance.
Specifies warranty terms and conditions for the instrument.
Provides an overview and identification of the DF-8500 gas detector unit.
Gives a general introduction to the device's components and features.
Covers the physical mounting and dimensional requirements for the detector.
Illustrates the assembly process for vertical and horizontal pipe mounting.
Explains the wiring procedures and cable requirements for electrical connections.
Describes the device's self-checking process and initial display information.
Details the navigation structure and functions of the device's menu system.
Provides instructions and precautions for replacing the gas sensor.
Lists key technical specifications and parameters of the DF-8500 detector.
Specifies maximum cable lengths based on cross-sections and alarm modes.
Details performance metrics like warm-up time, detection error, and response time.
Enlists gases detectable by the sensor and their respective measuring ranges.
Describes how sensors react to interfering gases and provides cross-sensitivity data.
Explains the purpose and installation of the sensor guard accessory.
Details the relationship between digital display, LED color, and signal output.
Lists error codes, their meanings, possible causes, and countermeasures.
Explains timeout conditions for calibration and auto-return to measurement mode.
Provides schematic diagrams for electrical connections and relay configurations.
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