4B HTAS1V34 Instrukcja obsługi - Strona 6

Przeglądaj online lub pobierz pdf Instrukcja obsługi dla Akcesoria 4B HTAS1V34. 4B HTAS1V34 20 stron. Wda sensor belt alignment / motion & broken / slack chain monitor

Drukuj stronę

The 4B WDA sensor is designed to detect moving ferrous (magnetic) material passing within its sensing

range, and is used in conjunction with a speed relay, PLC or with 4B's Watchdog™ Elite and A400 Elite

control units. The sensor will not detect non-ferrous material such as plastic, rubber, stainless steel or

aluminium.

The WDA can detect ferrous steel elevator buckets from the side of the elevator leg, or through the

elevator belt from the back of the leg. For plastic elevator buckets, the steel elevator bolts used to

attach the buckets can be targeted by installing the WDA on the back of the leg.

A more specialized use for the WDA switch is as a broken/slack chain detector on drag chain conveyors,

or as a non-contact speed switch for screw conveyors.

A flashing LED on the end of the sensor indicates a target has been detected. A potentiometer control

screw, located below the LED, allows the target sensing range to be adjusted from 1 to 3 inches. Two

output signals are provided: one signal is a pulse output, representing each object detected: the second

signal is a continuous output when moving objects are detected (see wiring diagram).

Voltage -

Supply Current -

LED Indicator -

Outputs (Max) -

Detection Range -

Detection Rate -

Cable -

Conduit Entry -

Temperature Rating -

Protection -

Approvals -

- Specifications for part # WDA3V34C, high temperature version also available (HTAS1V34)

The WDA3V34C contains a non-repairable 160 mA fuse and two thermal fuses set at 164°F (73°C).

Should the sensor reach the set temperature or higher, one or both of the thermal fuses may fail.

The expected maximum ambient temperature of the sensor is 122°F (50°C).

OVERVIEW

SPECIFICATIONS

12 to 24 VDC ± 10%

65 mA

Green (Flashing) - Target Detected

Green (Off) - No Target Detected

1. 100 mA Sink

2. 50 mA Source

Adjustable: 1 - 3 Inches (25 - 75 mm) for 1 Inch Diameter Ferrous Target

20 - 2,000 PPM (Pulses Per Minute)

9 ft. Long - 6 Conductor

1/2 Inch NPT

-4° F to 122° F (-20° C to 50° C)

IP66

CSA Class II Div. 1 Groups E, F, & G (USA and Canada)

CE, ATEX & IECEX Versions Available (Europe)

NOTE

PAGE 6