dallee-electronics opto-dt (rev 1) Manuel D’Utilisation
OPTO-DT
• DT1 #552
• DT3 #553
OPTO-DT - INFRA-RED OPTICAL DETECTION
The OPTO-DT is a detection device in which the output relay
(DPDT - Double Pole Double Throw) is activated when the optical
path of an infra-red beam is interrupted. An additional version
allows up to three separate infra-red beams activating the same
relay.
path of an infra-red beam is interrupted. An additional version
allows up to three separate infra-red beams activating the same
relay.
The electronic circuitry must be powered by a regulated 12 volt DC
supply (see our 12VPS, item 369) in order to function properly,
failure to do this will destroy the electronics.
failure to do this will destroy the electronics.
The infra-red beam is generated by an input set (optical coupler)
consisting of an emitter (looks like a clear, tinted, LED) and a
detector (looks like a black LED). The emitter and detector are
mounted on the layout so as to establish a line of sight beam
across an area where detection is desired. The emitter and
detector can be separated by more than 6 feet but must be
precisely aligned. To assist in this alignment, there is an LED on
the OPTO-DT which illuminates when proper adjustment is
achieved. The version with multiple inputs has switches so that
each emitter/detector set can be independently aligned.
detector (looks like a black LED). The emitter and detector are
mounted on the layout so as to establish a line of sight beam
across an area where detection is desired. The emitter and
detector can be separated by more than 6 feet but must be
precisely aligned. To assist in this alignment, there is an LED on
the OPTO-DT which illuminates when proper adjustment is
achieved. The version with multiple inputs has switches so that
each emitter/detector set can be independently aligned.
The OPTO-DT can be set for two distinct time functions. In
NORMAL function, with the time adjustment at minimum setting,
the relay will be activated (on) when the infra-red beam is
interrupted and relaxed (off) when the beam is restored. As the
time adjustment is increased a minimum (on) time for the relay is
established. When the beam is broken the relay is (on) for at least
the minimum time period. If the beam remains interrupted beyond
the minimum time period the relay stays (on) until the beam is
established. When the beam is broken the relay is (on) for at least
the minimum time period. If the beam remains interrupted beyond
the minimum time period the relay stays (on) until the beam is
restored. In TIMER function, when the beam is broken, the relay is
(on) for the duration of the time adjustment, then relaxes (off). The
relay will not again activate until after the beam is restored which
(on) for the duration of the time adjustment, then relaxes (off). The
relay will not again activate until after the beam is restored which
will allow the circuit to reset. This time adjustment is variable from
momentary to about 60 seconds.
Each OPTO-DT is furnished with the appropriate number of optical
couplers.
246 W. Main St.
Leola, PA 17540
(717) 661-7041
www.dallee.com
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Relay sect A: 1 - N/O
2 - C
3 - N/C
3 - N/C
Relay sect B: 4 - N/O
3 - C
2 - N/C
2 - N/C
Time
Adjust
pads for
exp. relay
#6 mtg.
screw
#6 mtg.
screw
1|
2|
3|
4
1|
2|
3|
4
1 | 2 | 3 | 4
se
ct.
B
1 | 2 | 3 | 4
sect. A
Upper Right -
Optical emitter outputs
Upper Left -
Relay Output &
'+' input power
Lower Right -
Optical detector inputs
Lower Left -
Relay Output &
'-' input power
LED -
Alignment Indicator
Selector Switches - DT3
Jumper block - DT1
Jumper block - DT1
wiring diagram