Technical data

1413
Amplifiers D2RF series
D2RF series
Amplifiers D2RF series
Digital Fiber Amplifier with Two Independent Outputs.
High speed 60 micro second response.
Digital Fiber Sensor
Two four digit display's.
Received Light Level and Threshold Setting
6 teach method for individual applications.
APC Function (Auto Power Control)
The APC function ensures precise sensing even
when there are changes in the temperature or
environmental conditions.
APC maintains a constant power level of light emis-
sion by regulating the current flow into the light emis-
sion element. The APC function can be turned On
and Off.
Near
Teach-in point
detectable
area
Far
10%
10%
Standard detection mode for
Thru-beam type sensing but
applicable for retro-reflective
sensing also.
Set without a target present.
Full Power Teaching
Single point Teaching
Standard detection mode for
Diffuse type sensing.
It is possible to make fine adjust-
ments.
Set while the equipment is
operating.
Two points Teaching
Full automatic Teaching
Similar to Area Teach Mode.
This is useful if the conveyor
moves closer to and farther from
the sensor. An area +/- 10% of
the teach point can be detected.
Zone Teaching
Ideal for the detection of glass,
film, plastic or any transparent
material.
Transparent / Glass Teaching
V42
Reflector
V42
Reflector
SAM Circuit - The ASC function (Auto Sensitivity Control)
Our engineer "SAM" designed this function. The
lens and/or reflector may be contaminated over
time. The D2RF amplifier monitors the change in
light level and automatically resets the threshold
value.
After cleaning off the lens / reflector it used to be
necessary to reset the threshold setting. The
D2RF does not require this step. Simply clean off
the lens and wait three seconds without a target
present. The sensor will automatically reset the
threshold level for the change. This is how the
SAM circuit works.
After cleaning the incoming light level will
increase suddenly. The SAM circuit computes
the preset threshold based on the increase in
light intensity.
This function is available only in Transparent
Detection Mode.
Time
Returned light level
Returned light level
Returned light level
Malfunction
Automatic
computing
Threshold
Threshold
Time
Returned light level
Contamination on the lens will eventually cause the sensor to malfunction.
Conventional Sensor
The threshold will auto-matically return to the preset level after the lens is
cleaned off.
D2RF series
SAM Circuit
Level of
light emission.
Conventional model
Time
Level of
light emission.
Time
APC
Light level
CH1
Teach-in / CHSelect/Adjust
CH2
Threshold
Mode SET/RUN
LED Power adjustment -
3 step adjustment of LED
emitting power.
A highly reflective target will cause the amplifier to
saturate making adjustment difficult. This can also
happen if the fiber cable is mounted too close to the
target.
In situations where the amplifier is saturated due to
excessive reflected light, the power level of the emit-
ting LED can be decreased to 50 or 25 percent.
100%
50%
25%
Power setting
This provides a way to boost or dampen the excess
gain level of the amplifier in poor sensing conditions
(low light level, low sensitivity or saturating condition).
Automatic Tuning is ideal when you need a little bit
better excess gain level, or when detecting a dark
object with diffuse reflective fiber cables.
Automatic Tuning
Long Term Stable Detection.
A conventional 3 element LED will lose brightness
over time. This results in a decrease in sensitivity in
the sensor. Optex FA's new D2RF uses a 4 element
LED to provide long service life. The Green LED type
D2GF uses a "Glan N2" LED, which offers the best
performance for Mark Detection with a Green LED
light source.
60 micro second high speed response.
Both outputs can be set to
operate at this speed.
This response time is avail-
able in 5 of the teach
modes.
Cross Talk Prevention
The amplifier frequencies
are automatically set
between the Master and
Slave units. Cross talk
prevention is possible for
up to 4 amplifiers.
IP66 and IP50, two types.
If your application is around
water or high humidity.
There is a model of the
D2RF-T series with an IP66
rating.
AmplifiersNotes
Flexible
Various Detecting Scheme
Environment-resistantLiquid
Extension lens
Various Shape for mounting
AmplifiersNotes Flexible
Various Detecting Scheme
Environment-resistantLiquid
Extension lens
Various Shape for mounting