The ZXFJ-4 SF6 Decomposition Product Tester manual provides operation, safety, specifications, and maintenance instructions.
The ZXFJ-4 is a portable instrument for on‑site detection of SF6 gas decomposition products such as SO₂, H₂S and CO. It uses an electrochemical sensor with a built‑in pressure regulator, filter and flow meter to deliver accurate, repeatable measurements.
The manual covers product overview, performance features, technical specifications, interface navigation (measurement, menu, power‑saving, time‑setting screens), safety precautions, troubleshooting FAQs, packing list and after‑sales service information. This manual is written in Chinese.
| Gas measurement range | SO₂ 0‑100 µl/l, H₂S 0‑200 µl/l, CO 0‑500 µl/l |
|---|---|
| Sensitivity | ±0.1 µl/l for SO₂, H₂S, CO |
| Response time | 40 s |
| Battery capacity | 800 mAh Li‑ion |
| Operating temperature | -40 ℃ to 70 ℃ |
| Dimensions | 300 × 215 × 140 mm |
| Weight | ≈4.4 kg |
| Sampling flow rate | 0.01 – 1 L/min |
Each charge takes less than 12 hours, depending on the remaining battery level.
It is recommended to calibrate every 2 years, or every 6 months if the gas path is heavily contaminated.
The sensor performs a gain‑recovery function, returning to a previous test stage for calibration, which temporarily freezes the display before the data resumes.