Key facts
- Brand
- SUOFUDA
- Model
- SFD-600
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH
- Last added
- 2012-04-01
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Suofuda SFD-860/SFD-600 Gas Alarm System User Manual
The Suofuda SFD-860 series provides bus‑type combustible/ toxic gas alarm controllers (4, 8 or 16 channels) that work with SFD-600 series field detectors. The system monitors hazardous gases, triggers audible/visual alarms, and supports RS485 Modbus communication.
The manual details product selection, specifications, wiring diagrams, installation steps, detector calibration, routine maintenance, and troubleshooting procedures for safe operation in explosive environments. This manual is written in Chinese.
SUOFUDA SFD-600 specifications
| Measurement range | 0-100% LEL |
|---|---|
| Alarm response time | <7 s |
| Alarm setting range | 10–30% LEL |
| Operating temperature | -10 °C to 45 °C |
| Input voltage | AC 220 V ±10%, 50/60 Hz |
| Output voltage | DC 24 V |
Source: Suofuda SFD-600 (BAK) Series Combustible Gas Alarm Unit Manual
All SUOFUDA SFD-600 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How are the alarm points set?
The alarm points are preset at OUT1 = 10% LEL and OUT2 = 30% LEL, but they can be adjusted to any value within the 10–30% LEL range.
From: Suofuda SFD-600 (BAK) Series Combustible Gas Alarm Unit Manual
What is the response time of the alarm controller?
The controller responds within 15 seconds when gas concentration exceeds the alarm limit.
What power voltage does the system require?
It operates from a DC 24 V supply, acceptable range DC 12 V to DC 28 V.