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T30 sensors - ac-voltage series, Models, Fixed-field mode overview

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Self-Contained, AC-Operated Sensors

• Featuring EZ-BEAM® technology, the specially designed optics and electronics provide relia-

ble sensing without the need for adjustments

• “T” style plastic housing with 30 mm threaded lens in opposed, retroreflective or fixed-field

modes

• Completely epoxy-encapsulated to provide superior durability, even in harsh sensing environ-

ments rated to IP69K

• Innovative dual-indicator system takes the guesswork out of sensor performance monitoring
• 20 to 250V ac (3-wire hookup); SPST solid-state switch output, maximum load 300 mA

WARNING: Not To Be Used for Personnel Protection
Never use this device as a sensing device for personnel protection. Doing so could lead to serious
injury or death.
This device does NOT include the self-checking redundant circuitry necessary to allow its
use in personnel safety applications. A sensor failure or malfunction can cause either an energized or de-
energized sensor output condition.

Models

Sensing Mode

Model

1

Output

Range

LED

OPPOSED

T303E

-

60 m (200 ft)

Infrared, 950 nm

T30AW3R

LO

T30RW3R

DO

P

POLAR RETRO

T30AW3LP

LO

6 m (20 ft)

Visible Red, 680 nm

T30RW3LP

DO

FIXED-FIELD

T30AW3FF200

LO

200 mm (8 in) cutoff

Infrared, 880 nm

T30RW3FF200

DO

T30AW3FF400

LO

400 mm (16 in) cutoff

T30RW3FF400

DO

T30AW3FF600

LO

600 mm (24 in) cutoff

T30RW3FF600

DO

Fixed-Field Mode Overview

T30 Series self-contained fixed-field sensors are small, powerful, infrared diffuse mode sensors with far-limit cutoff (a type of background
suppression). Their high excess gain and fixed-field technology allow detection of objects of low reflectivity, while ignoring background
surfaces. The cutoff distance is fixed. Backgrounds and background objects must always be placed beyond the cutoff distance.

Fixed-Field Sensing – Theory of Operation

The T30FF compares the reflections of its emitted light beam (E) from an object back to the sensor’s two differently aimed detectors, R1
and R2. See

Figure 1. Fixed-Field Concept

on page 2. If the near detector's (R1) light signal is stronger than the far detector's (R2)

light signal (see object A in the Figure below, closer than the cutoff distance), the sensor responds to the object. If the far detector's (R2)
light signal is stronger than the near detector's (R1) light signal (see object B in the Figure below, beyond the cutoff distance), the sensor
ignores the object.

1

Standard 2 m (6.5 ft) cable models are listed. For 9 m (30 ft) cable: add suffix “W/30” (for example, T303E W/30). For 4-pin Micro-style integral QD: add suffix “Q1” (for example,
T303EQ1). A model with a QD connector requires a mating cable; see

Cordsets

on page 7.

T30 Sensors - AC-Voltage Series

P/N 121523 Rev. A

2/8/2013

0 121523

1

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