Our WHD models are used for detection of punched holes or weld holes in continuous process lines such as continuous galvanizing lines, continuous electro-galvanizing lines, continuous annealing lines, continuous pickle lines, and other types of continuous process lines.
Key Features:
- Reliable detection of Ø6 – Ø13 mm holes up to 150 km/h (93 mph).
- High resistant to ambient light (>70,000 LUX).
- Dust, mist and vibration tolerant with NO moving parts.
- Detects holes with emitter completely covered by strip.
- Detects holes with one edge of emitter not covered by the strip.
- Detects holes with both edges of emitter uncovered by the strip.
- Flexible mounting with M6 “swivel in the nut”.
| Available Emitter Length | 240 mm(WHD 240), 480 mm(WHD 480), 960 mm(WHD 960) |
| Distance between Emitter and Receiver | 550 to 700 mm |
| Hole Size | Ø6 mm to Ø13 mm |
| Maximum Target Speed | 150 km/h(WHD 240), 75 km/h(WHD 480), 37 km/h(WHD 960) |
| Response Time | < 6 ms |
| Min. Time between two Holes | 1 sec |
| Min. Distance from Edge to Hole | 15 mm |
| Display size | 3.5 inch |
| Material | Aluminium and Glass Window |
| Weight | 2.5 kg (WHD 240), 4.5 kg(WHD 480) and 7.5 kg(WHD 960) |
| Degree of Protection | IP(65) |
| Cable length | 2 meter unless specified at order |
| Supply voltage | 110 to 230 VAC |
| Power consumption | max 30 W |
| Humidity non condensing | max 90 % RH |
| Operating temperature | 0 – +60 C° |
| Storage temperature | -20 – +70 C° |
| Relay Type | Galvanic isolated Form C SPDT max 24 VDC / 2 Amp |