Complaint
| No. | Items | Standard and test condition |
| 1 | Function | Transmitter-Receiver |
| 2 | Center frequency(KHz) | 40.0±1.0(Piezoelectric impedance analyzer) |
| 3 | Sensitivity(us) | ≥200(normal temp test 0.8mΦ75mmPVC pipe) |
| 4 | Residual oscillation(ms) | <=1.68(Normal temp test including transmitting fundamental wave) |
| 5 | Capacitance(pF)(25ºC) | 1800±15% |
| 6 | Beam direction angle(deg)(º) | 100±15 |
| 50±15 | ||
| 7 | Ranging | >=0.8m(normal temp test Φ75mmPVC pipe) |
| 8 | Max Input Voltage(Vp-p) | 140 (pulse width 0.5ms, interval 10ms) |
| 9 | Operating Temperature (ºC) | -30~+80 |
| 10 | Storage Temperature (ºC) | -40~+85 |
| 11 | Terminal | XH2.54*2P Connector |
| 12 | Length(mm) | 2500±30mm customized |
| 13 | Weight(g) | 45 |
| 14 | Color | Customized |
| 15 | Outer shell material | Plastic |
| NO. | Items | Performance requirement |
| 1 | Center frequency (KHz) | 58±1.5KHz |
| 2 | Residual oscillation (ms) | 0.8-1.55ms |
| 3 | Distance(cm) | 1180-1220cm(Obstacle is φ 75pvc pipe) |
| 4 | Echo(us) | 150-450us |
| 5 | Capacitance (pF)(25ºC) | 1850±10pf |
| 6 | Max Allowable Input Voltage(Vp-p) | 140Vp-p |
| 7 | Beam direction angle(deg)(º) | Horizontal 100±15/ Vertical 50±15 |
| 8 | Function | Transmitter-Receiver |
| 9 | Storage Temperature (ºC) | -40~+80 |
| 10 | Operating Temperature (ºC) | -40~+85 |
| 11 | Color | Epoxy black |
| Material | Appearance requirement | |
| 1 | Wire | The wire surface shall be free of scratches, deformation and damages; The waterproof female head shall be free of damages, flashing and deformation.The DC connector of the female head shall be in the middle without deviation |
| 2 | Sensor | The sensor surface shall be parallel to the rubber shell surface with no deviation. |
| The sensor surface shall be free of paint droppings, sand points,concave points,scratches and dirt. |
| No. | Items | Technical standard | Inspection records | Conclusion | ||||
| 1 | Center frequency | 58±1.5KHz | 59.1 | 57.7 | 59.2 | 59.2 | 57.9 | OK |
| 2 | Residual oscillation | 0.8-1.550ms | 1.32 | 1.25 | 1.28 | 1.32 | 1.31 | OK |
| 3 | Ranging | 1140-1220cm(Obstacle is φ75PVC pipe) | 1192 | 1193 | 1190 | 1191 | 1194 | OK |
| 4 | Echo | 150-450us | 187 | 192 | 202 | 195 | 263 | OK |
| 5 | Capacitance (25ºC) | 1660-2030pf | 1740 | 1730 | 1770 | 1770 | 1720 | OK |
| 6 | Beam direction angle | Horizontal 100±15° | 95 | 90 | 90 | 95 | 90 | OK |
| Vertical 50±15° | 45 | 40 | 40 | 45 | 45 | OK | ||
| No. | Material | Product appearance | ||||||
| 1 | Wire | No scratches, deformation or damages on the wire surface. No damages, flashing or deformation on the waterproof female head .The DC connector of the female head is in the middle without deviation | ||||||
| 2 | Sensor | The sensor surface is parallel to the rubber shell surface with no deviation.And no paint droppings, sand points,concave points,scratches or dirt on the surface. | ||||||
