| NO. | File Name | Download |
| 1 | DS7E Series 3 Phase Power Meter User Manual(B Version) |  |
| 2 | DS7L Series 3 Phase Intelligent Power Meter Operation Manual (Version B has been discontinued) |  |
| 3 | DS9E Series 3 Phase Power Meter User Manual(B Version) | |
| 4 | DS9L Series 3 Phase Inteligent Coulometer User Manual | |
| 5 | DS9 Series 3 Phase Voltage and Current Meter Operating Instructions (Discontinued) | |
| 6 | DU8 Single-Phase Electric Parameter Measuring Instrument Operation Manual (Discontinued) | |
| 7 | DU8W | |
| 8 | DTSD8080M-4P series of three-phase electronic multi-loop watt-hour meter manual | |
| 9 | DP3-SVA series sensor display special table manual | |
| 10 | TL Close to switch instructions | |
| 11 | TC Technical Parameters | |
| 12 | TK/TC Close to The Switch Manual | |
| 13 | TK Close to The Switch Manual | |
| 14 | FM Series of Frequency/Tacho/Line Speed Meter | |
| 15 | FA8 Series AC Frequency,Frequency,Tacho Digital Meter Manual | |
