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Model：
HD-XL20
Introduction：
Available Chlorine Detector measures available chlorine in water by the spectrophotometric method per GB/T5750.11-2023. Widely used for food factories, hospitals, sewage treatment, aquaculture and disinfection testing....
The available chlorine rapid analyser uses spectrophotometry and is designed and manufactured with reference to the standard method GB/T 5750.11-2023. It replaces the traditional visual colorimetric method and eliminates human error, giving higher resolution and direct readout for simpler, more user-friendly operation.
Widely used for available chlorine determination in food plants, hospitals, wastewater treatment, breeding centres, aquaculture and disinfection septic tanks; also suitable for the determination of available chlorine in bleaching powder, bleaching powder tablets and similar disinfectants, so that qualified disinfecting solutions can be prepared in accordance with national disinfection standards.
1. Android 7.1.1 smart operating system with a user-friendly Chinese interface for faster response and greater stability.
2. 8-inch LCD touch screen with intuitive readout.
3. Precision colorimetric cell design with a consistent light source, eliminating errors caused by light source variation and improving accuracy.
4. Imported ultra-bright LED light source with automatic brightness adjustment and calibration.
5. Supports φ16 mm digestion colorimetric tubes.
6. Wireless communication via Wi-Fi, RJ45 and mobile hotspot; data can also be exported through a USB drive.
7. Multi-functional sample management with Chinese/English sample naming for convenient recording and storage.
8. 8 million data sets can be stored permanently; records can be searched by time and selected for analysis.
9. Built-in regulatory cloud platform: data can be uploaded over a LAN or the Internet and interfaced with the platform of the environmental supervision authority.
10. Built-in thermal line printer with freely selectable print content, including QR codes.
11. AC 220 V supply with an optional 6 Ah rechargeable lithium battery for field testing.
12. Built-in instructional videos let users watch the procedure while operating the instrument.
13. Firmware can be upgraded later.
| Indication error | ≤ ±5 % |
| Stability | < 0.5 % |
| Repeatability | < 0.5 % |
| Photochemical stability | Drift ≤ 0.002 A within 20 min (100,000 h lamp life) |
| Reference standard | GB/T 5750.11-2023 |
| Measuring range | 0.2–300 mg/L; 0.1–60 % |
| Detection limit | 0.2 mg/L |
| Colorimetric method | φ16 mm digestion colorimetric tube |
| Operating system | Android 7.1.1 smart operating system |
| Operating interface | Chinese or English |
| Display | 8-inch (1024 × 768) HD colour LCD touch screen |
| Network interface | USB 2.0, Wi-Fi, Bluetooth, hotspot, RJ45 |
| Cloud platform | Built-in regulatory platform; results are transmitted directly to the environmental safety supervision platform via wired or wireless network |
| Printer | Thermal line printer |
| Data storage | 8 million data sets, freely recallable |
| Data export format | Excel spreadsheet |
| Dimensions | 367 × 243 × 125 mm |
| Weight | 5.3 kg |
| Ambient temperature | 5–40 °C |
| Ambient humidity | < 85 % RH (non-condensing) |
| Rated power | 10 W |
| Power supply | AC 220 V ±10 %, 50 Hz |
| Optional | Large-capacity lithium battery |
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