Manual

Banner Engineering Corp. • Minneapolis, MN U.S.A
www.bannerengineering.com • Tel: [phone]
2 P/N 27988 Rev. C
Q08 Series Opposed-Mode Sensors
Overview
Banner model Q08 emitters and receivers are very small, rugged, and powerful infrared
opposed-mode (“through-beam”) sensor pairs contained within die-cast metal housings
only 8 mm deep. Sensing range is 20 inches. Q08 emitters and receivers are totally self-
contained and are powered from 10 to 30V dc.
Q08 opposed sensor pairs are ideal for sensing of parts on small conveyors and for other
similar short-range opposed-mode sensing uses. The size of these powerful compact
sensors makes them especially useful in applications with limited space.
A synchronizing wire connecting the emitter and receiver “gates” the receiver to look for
a light signal only during the instant when the emitter sends a light pulse from its infrared
LED. This produces exceptionally high immunity to electrical noise and false signals. The
modulated infrared sensing beam, along with polysulfone lenses on both the emitter and
receiver, result in extremely high immunity to interference from visible ambient light.
Model Q08 receivers have a solid-state output capable of switching loads of up to 150
mA dc, continuous. Four output types are offered: NPN sinking/light operate, NPN sinking/
dark operate, PNP sourcing/light operate, and PNP sourcing/dark operate. See the table
of available models on page 1. A light-operate output conducts when the receiver sees
the emitter’s pulse-synchronized light source. A dark-operate output conducts when the
receiver does not see the emitter’s pulse-synchronized light source.
A green LED indicator on both the emitter and receiver units, visible from the front and
left side of the sensor, lights whenever dc power is applied. A yellow LED (receiver
units only), visible from the front and the right side of the receiver, lights whenever the
receiver’s output circuit is conducting.
1
2
1. Green Power ON Indicator
2. Yellow Output ON Indicator (Received
only)
8.0 mm
(0.32 in)
20.0 mm
(0.79 in)
ø 3.40 mm (0.134 in)
(2 Holes)
#4 (M3) Screw Clearance
13.00 mm
(0.512 in)
2 m
(6.5 ft) Cable
3.00 mm
(0.12 in)
32.0 mm
(1.26 in)
Beam emits
from mechanical center
of lens
9.0 mm
(0.35 in)
Dimensions