I.Aerosol Photometer Parameters
| Parameter | Description |
|---|---|
| Model | SAF-2i |
| Principle | Aerosol concentration detector (Near Forward photometer) |
| Aerosol Type | PAO, etc. |
| Concentration Range | 0.0001–125 μg/L (mg/m³) |
| Resolution | 0.0001 μg/L |
| Accuracy | 10% of the reading (0.01%FS–100%FS) |
| Repeatability | <3% |
| Zero Function | Automatic zero reset |
| Sampling Flow Rate | 28.3 L/min |
| Air Source | Built-in air pump (adjustable flow rate) |
| Light Source | Semiconductor laser (service life >50,000 hours, imported) |
| Communication Interfaces | RS484 (Modbus-RTC protocol), USB |
| Self-Cleaning Time | ≤1 min |
| Power Supply | 200–240VAC, 50Hz |
| Dimensions | 260 mm × 370 mm × 160 mm (L×W×H) |
| Housing Material | Aluminum alloy (surface coating) |
| Weight | 10 kg (main unit) |
| Operating Environment | Temperature: 10–35°C; Humidity: 20%–75%; Atmospheric pressure: 86–106 kPa |
| Printer | External, 232 interface |
| Scanning Probe | 2.4-inch LCD screen, metal housing |
| Instrument Case | Aluminum alloy |
II.Standard Configuration List
| Number | Name | Unit | Quantity |
|---|---|---|---|
| 1 | Aerosol photometer (main unit) | Set | 1 |
| 2 | Sampling tube | Root | 1 |
| 3 | Scanning probe | Set | 1 |
| 4 | Power cord | Piece | 1 |
| 5 | User manual | Copy | 1 |
III.Front Panel Introduction& Probe Introduction
Front Panel Introduction
1. LCD Display: 4.3-inch color touchscreen providing visual human-machine interaction, displaying leakage percentage readings, selection icons, alarm status, and connection status with peripheral devices.
2. Power Button: Press for over 1 second to turn on/off the device.
3. Selection Valve LED Display: Activates corresponding functions when any button is pressed, with the corresponding blue indicator light turning on.
4. Upstream Sampling Port: Connects the sampling tube for testing upstream aerosol concentration.
5. Downstream Sampling Port: Connects the sampling tube for testing downstream aerosol concentration.
6. Probe Connector: Nine-pin ring connector supplying power to the scanning probe.
7. USB Interface: Exports data and reports in xls format.
Probe Introduction
1. LCD Display: Color display serving as the main interface of the scanning probe, showing leakage percentage readings, selection icons, alarm status, and device connection status.
2. Flexible Hose: Allows adjustment of the scanning nozzle angle for convenient operation.
3. Function Keys: Used for parameter setting and direct selection of the sampling valve.
4. Power Connection Port: Seven-pin ring connector providing power to the scanning probe.
5. Aerosol Connection Port: Connects the aerosol sampling tube of the scanning probe.
6. Scanning Probe Nozzle: Isokinetic sampling nozzle compliant with NSF 49:2002 standards.
IV. FAQ
Q：Why The Screen Not Lighting Up?
A:Check the instrument's power supply.
Inspect whether the instrument interface is loose or oxidized.
Q:What should I do if there is an Communication Abnormality?
A:If communication error occurs during normal software operation, check the instrument's communication interface, communication line, and the port configuration on the computer side.
Q: Why No Counting?
A:Ensure the instrument is running when sampling an obvious aerosol with smoke.
Check if the air pump is operating. If the sound is normal, contact the manufacturer for maintenance.
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