WDA4 - High Power Extended Range Magnetic Proximity Sensor

Product catalog summary

Product Overview
The WDA4 Sensor is a high-power, extended-range magnetic proximity sensor designed for industrial applications, particularly with bucket elevators. It features an adjustable sensing range from 25mm to 75mm, LED indication, and stainless steel construction. The sensor is protected with an IP66 rating and is available in a high-temperature version.

Features

Adjustable sensing range: 25mm to 75mm
LED indication for target detection
Includes mounting bracket and ½” NTP conduit entry
Stainless steel construction with high-temperature version available
IP66 protection

Part Numbers/Accessories

WDA4V342AI: Standard sensor with earth stud
HTAS1V34: High-temperature sensor (not approved)
WDAMB: Sensor mount (included)
AS62: Abrasion shield

Compatible Monitoring Systems

WDC4VxxCAI: Watchdog Elite Monitoring System
A4004V46CAI: A400 Elite Monitoring System

Application
The sensor is used for non-contact detection of moving ferrous materials up to 75mm away. It is ideal for detecting bucket elevators, screw conveyor flights, and ferrous bolts. It can also be used for broken/slack chain detection.

Method of Operation
The WDA sensor works with PLCs or 4B's Watchdog™ Elite or A400 Elite control units. It provides two output signals: a pulse output for each detected bucket and a continuous output for moving buckets. The continuous output can be configured as normally energized or de-energized.

Technical Specifications

Operating voltage range: 12 to 24 VDC + 10%
Supply current: 40 mA
LED indicator: Green (flashing) for target detected, Green (off) for no target detected
Pulses output: Solid state relay, 25 mA sink or source @ 240 VAC/DC (max), non-inductive
Continuous output: 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

Catalog excerpts

WDA4 - High Power Extended Range Magnetic Proximity Sensor-1

Product DATASHEET Datasheet PRODUCT High Power Extended Range Magnetic Proximity Sensor APPLICATION Non-contacting 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). Sensing Range 25mm to 75 mm Indication ► Mounting Bracket Included ► ½” NTP Conduit Entry ► Stainless Steel Construction ► High Temperature Version Available ► IP66 Protection ► LED PART NUMBERS/ACCESSORIES ► WDA4V342AI ► HTAS1V34 ► WDAMB ► AS62 WDA4 Standard Sensor, with earth stud WDA High Temperature Sensor – NOT APPROVED Sensor Mount (Included with Sensor) Abrasion Shield 4B COMPATIBLE MONITORING SYSTEMS ► WDC4VxxCAI ► A4004V46CAI Watchdog Elite Monitoring System A400 Elite Monitoring System Copyright © 2023 4B Group. All rights reserved. Information is subject to change or modification without notice. Refer to instruction manual for installation information. CRD050724

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WDA4 - High Power Extended Range Magnetic Proximity Sensor-2

Product DATASHEET Datasheet PRODUCT TECHNICAL SPECIFICATIONS Operating Voltage Range Supply Current LED Indicator Pulses Output (MAX) Continuous Output (MAX) Green (Flashing) – Target Detected Green (Off) – No Target Detected Solid State Relay, 25 mA sink or source @ 240 VAC/DC (MAX), noninductive Solid State Relay, 25 mA sink or source @ 240 VAC/DC (MAX), noninductive Detection Range Detection Rate Operating Temperature Conduit Entry Ingress Protection ATEX, IECEx Zone 20 Copyright © 2023 4B Group. All rights reserved. Information is subject to change or modification without notice. Refer to...

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