The Hach SC100 LDO manual provides installation, operation, calibration, and maintenance instructions for the dissolved‑oxygen analyzer.
This manual covers the complete setup of the Hach SC100 LDO dissolved‑oxygen analyzer, including mechanical installation, electrical wiring, and configuration of Modbus communication. Detailed operating procedures describe how to start measurements, perform calibrations with standard solutions, and interpret sensor data.
Maintenance sections explain routine cleaning, sensor replacement, and troubleshooting, while the technical specifications list measurement ranges, accuracy, power requirements, and environmental limits. The document also includes Modbus register tables for integration with control systems. This manual is written in Chinese.
| Measurement range | 0–20 ppm (0–20 mg/L) |
|---|---|
| Power supply | 100–230 V AC, 5 A |
| Enclosure rating | NEMA 4X/IP66 |
| Communication | Modbus RTU/ASCII (RS‑232/RS‑485) |
The SC100 measures dissolved oxygen from 0 to 20 ppm (equivalent to 0–20 mg/L).
Calibration is performed using standard solutions or the Winkler method as described in the calibration section of the manual.
The analyzer requires a 100–230 V AC supply with a maximum current of 5 A and is housed in a NEMA 4X/IP66 enclosure.
It supports Modbus communication in both RTU and ASCII modes over RS‑232 or RS‑485 interfaces.