Non-contacting high-power, extended range magnetic proximity sensor, not affected by dust or material build up, used to detect moving ferrous material up to 75mm away from the sensor.The WDA sensor is designed…
Non-contacting high-power, extended range magnetic proximity sensor, not affected by dust or material build up, used to detect moving ferrous material up to 75mm away from the sensor.
The WDA sensor is designed for use with bucket elevators to detect the buckets in order to measure speed and alignment. It can also detect screw conveyor flights, and ferrous bolts when attached to non-ferrous buckets. A more specialized use of the WDA sensor is for broken/slack chain detection.
The sensor is used in conjunction with a PLC or with 4B's Watchdog™ Elite or A400 Elite control units. Two output signals are provided: one signal is a pulse output, representing each bucket detected: the second signal is a continuous output when moving buckets are detected. The continues output can be wired normally energized or normally de-energized (please see manual).
| Brand | 4B |
|---|---|
| Part numbers | WDA4V342AI, WDA4V342AI-HT |
| Application | Bucket Elevator, Chain Conveyor |
| Parameter | WDA4 |
| Operating Voltage Range | 12 to 24 VDC + 10% |
| Supply Current | 40 mA |
| LED Indicator | ·Green (Flashing) – Target Detected |
| ·Green (Off) – No Target Detected | |
| Pulses Output (MAX) | Solid State Relay, 25 mA sink or source @ 240 VAC/DC (MAX), non-inductive |
| Continuous Output (MAX) | Solid State Relay, 25 mA sink or source @ 240 VAC/DC (MAX), non-inductive |
| Detection Range | Adjustable 25 to 75mm |
| Detection Rate | 20 – 2,000 PPM (Pulses Per Minute) |
| Cable | 3m 6 core |
| Operating Temperature | -20 °C to +50 °C |
| Conduit Entry | ½” NPT |
| Ingress Protection | IP66 |
| Approvals | ATEX, IECEx Zone 20 |
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