4B - Model WDA4V342AI, WDA4V342AI-HT -Magnetic Proximity Sensor
Non-contact, extended-range magnetic proximity sensor, unaffected by dust or material accumulation, used to detect moving ferrous materials up to 75 mm from the sensor. The WDA sensor is designed to detect buckets for measuring speed and alignment. It can also detect screw conveyor threads and ferrous bolts when attached to non-ferrous buckets. A more specialized use of the WDA sensor is for detecting broken/slack chain. The sensor can be used with a PLC or with 4B's Watchdog Elite or A400 Elite control units. Two output signals are possible: pulsed, representing each detected bucket; or continuous, when moving buckets are detected. The continuous output can be wired normally live or normally off (please refer to the manual).
- Adjustable detection range from 25 mm to 75 mm
- LED indicator
- Mounting bracket included
- 1/2” NTP conduit inlet
- Stainless Steel Construction
- High Temperature Version Available
- IP66 protection
Electronics Application
- Bucket elevator
- Chain conveyor
Nomenclature/Accessories:
- WDA4V342AI - Standard WDA4 Sensor with Earth Pad
- HTAS1V34 - High Temperature WDA Sensor – Not Certified
- WDAMB - Mounting bracket (included with sensor)
- AS62 - Abrasion-resistant shield
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 from 25 to 75mm
- Detection Rate: 20 – 2,000 PPM (Pulses Per Minute)
- Cable: 3m 6 core
- Operating Temperature: -20 °C to +50 °C
- Entrance Conduit: ½” NPT
- Ingress Protection: IP66
- Approvals: ATEX, IECEx Zone 20