3129-10相序表技術(shù)參數(shù)：
| Measurement Function | Phase detection (positive,negative),live wire check (R-S/S-T only) |
| Voltage Detection Method | Electrostatic induction method |
| Voltage Range | 70 to 1000VAC (50/60Hz)(sine wave,continuous input) |
| Clamp Diameter | 10 to 40mm of insulated wiring |
| Display | | Phase Detection : | Positive | 4 LEDs lit in clockwise order and 3 short beeps | | | Negative ; | 4 LEDs lit in counterclockwise order and one continuous beep | | Live Wire Check : | R-S and S-T lamps will light if voltage between wires are within voltage range | |
| Battery Check Function | ON lamp blinks to indicate battery low status when instrument is turned on |
| Auto Power Off | Auto shut off if no activity is detected after power is turned ON for 15 minutes |
| Power supply | Two AA size batteries × 2 (rated voltage:DC3.0V; maximum rated ower:300mVA) |
| Continuous Use | approx.70 hours (standby) |
| Dimensions, mass | 70 mm (2.76 in)W x 75 mm (2.95 in)H x 30 mm (1.18 in)D, 240g (8.5 oz),
Cord length : 0.7m(27.56 in) |
| Accessories | Carrying case(1), strap(1), R6P manganese batteries(2), spiral tube(1) |
