Nabco Acusensor 3 User manual

S82 W18717 Gemini Drive
Muskego, WI 53150
Phone: [phone]
Fax: [phone]
www.nabcoentrances.com
Technical Assistance: 866-622-8325
Instruction Manual
Acusensor 3
P/N 15-8911-3
January 16, 2015 Revision
Instruction Manual
WARNING
● Do Turn OFF all power to the Automatic Door if Safety System is not working.
● Instruct the Owner to keep all power turned OFF until corrective action can be achieved by a NABCO trained technician.
Failure to follow these practices may result in serious consequences.
● NEVER leave a Door operating without all Safety detection systems operational.
DN0359
NOT FOR USE AS A SWING DOOR SAFETY SENSOR
This Sensor does not have adequate pattern detection for use as a safety presence detector
on the Pull Side of Swing door.

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Acusensor 3
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CAUTION:
Do not install, operate or service this product unless you have read and understood
the Safety Practices, Warnings, Installation and Operating Instructions contained in
this manual. Failure to do so may result in property damage or bodily injury.
CAUTION:
The purpose of this manual is to familiarize the purchaser with the proper
installation and operation of this system. It is essential that this equipment be
properly installed and operational before the door is used by the public. It is your
responsibility to inspect the operation of the entrance system to be sure it complies
with any applicable standards. In the United States, ANSI Standard 156.10 and
156.19 usually cover the operation of the doors.
Instruct the building owners/operator on the essentials of the operation of the door
and this device. The owner should follow these instructions to determine whether the
NOT FOR USE AS A SWING DOOR SAFETY SENSOR
This Sensor does not have adequate pattern detection for use as a safety presence detector
on the Pull Side of Swing door.

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Acusensor 3
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Contents
A. General Specifications 4
B. Appearance and Dimensions 5
C. Installation and Adjustment
1. Installation 6
2. Wiring 6
3. Customized Settings
a) Setting up depth coverage 7
b) Setting up width coverage 9
c) Setting up operation mode
1) Setting up interference prevention modes 10
2) Sensitivity setting 11
3) Presence detection time 11
4. Turning ON the power 12
5. LED Indicator 13
6. Usage Tips 13
7. Trouble shooting 15

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Acusensor 3
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A. Specifications
Part Description Acusensor 3
Part Number 14-8902-3
Sensing System Active reflective infrared system (Motion / Presence)
Power source 12 to 24V AC or DC Class 2
Recommended
Temperature Range -20 to +55°C (-4 to 131°F)
Power consumption <2.5VA @24VAC, <100mA @12VDC)
Output Contacts
Rating
Form A relay, 50V 0.1A Max. (Resistance load)
No Detection: “OPEN”, Detection: “CLOSED”,
Power failure: “OPEN”
Mounting height 6'6" (2m) to 9'10" (3m)
Detection area
(when mounted at
the height of 118”)
Max. depth: 74.8” Max. width: 130.7”
See page 10, figure 10 for more details
Output display
Green / Stand-by
Red / 1st Row Detection Active
Orange / 2nd Row Detection Active
See page 13 for more details
Standstill memory
time (learn time) 2 sec, 10 sec, 30sec, and 90sec
Output holding time 0.5 seconds
Weight Approximately 1/2 lbs (8.5oz)
Color Black

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B. Appearances and Dimensions
Figure 1 - Appearance
Figure 2 – Shown with cover removed
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C. Installation and Adjustments
1. Installation
1. Affix the Mounting Template to the mounting surface (Figure 3).
(When mounting on a header, do not locate the sensor higher than 4.5 inches
above the bottom edge of the header as the header can block the detecting area.)
2. Drill two mounting holes (ø 3.4mm or 1/8”).
3. Drill a wiring hole (ø 8mm or 5/16”) for the sensor harness.
4. After drilling the holes, remove the Mounting Template
CAUTION: To prevent electrical shock, make sure that there are no
electrical wires of other products in the area close to the place
where you are going to drill.
Also, be sure that the mounting height is within the value
of those in "SPECIFICATIONS” on page 4.
2. Wiring
1. Plug the Acusensor 3 Harness (P.N. 22-9184, Figure 4) into the 4 pin
connector on the Acusensor 3.
2. Connect the Black and Red power wires to a class 2 transformer,
or the Brown & Red 12 volt wires on a Microprocessor U series control ,
or other suitable power source.
3. Attach the White and Green wires to the activation or presence input
of the door control.
4. Turn on the power and wait a minimum 10 seconds for the sensor to
calibrate.
Note: There cannot be any motion within the sensing zone during this time.
Figure 3
Figure 4
DN0359
Acusensor Harness P/N 22-9184
DN 0343.5
Form A relay Output, 50V 0.1A Max. (Resistance Load)
Black
White
Power Supply 12 to 24V AC / DC
Red
Green

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Acusensor 3
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3. Customized Settings
The following information describes how to change the settings for depth
of coverage, width of coverage, sensitivity and memory. Any changes to
these settings that are made on site by the installer are the responsibility
of the installer. Proper system operation must be verified according to
ANSI Standard 156.10 and 156.19 or any local codes that apply to door
operation.
a) Setting up for Depth Coverage
There are three ways to adjust the depth coverage: row settings (dip
switches 7 and 8), base angle, and adjustment of the depth screw.
(See figures 5,6,7 on following page)
As an Activation Sensor
When the Acusensor 3 is intended to be used as a door activating
device, the depth of coverage should comply with ANSI requirements.
When other sensors are being used for the activation function, it may be
desirable (but not necessarily required) to reduce the sensing coverage
area of the Acusensor 3. Adequate threshold coverage might be achieved
by setting the various area settings. Coverage should always be checked
to be sure it is adequate. For best detection of slow moving pedestrians or
objects, the sensitivity option should be on Medium or High.
The width and depth of coverage for an actual installation may vary.
This is typically the result of:
1. A variance in mounting height
2. Normal manufacturing and component tolerances
3. Variances in field measurements, procedures and
conditions from ANSI standards.
4. Use of spacers for mounting

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Delayed activation can occur as rows are eliminated
When detection area is tilted toward the door, the bottom edge of the header can block the
sensor pattern if the sensor is installed too high on the header. DO NOT install sensor higher
than 4.5 inches above the bottom edge of the header.
Figure 5
Figure 6
Set the rows using dipswitches 7 and 8
Setting the base angle
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Figure 7 Setting the depth screw angle

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To adjust the pattern width
Areas 1 and 2 can be eliminated and/or areas 7 and 8.
(1 and 2 cannot be separated, neither can 7 and 8)
To adjust the width angle
Use the adjustment tool as shown below to change the width angle.
±7° can be achieved in 3.5° steps each click ( Right / Left )
Mounting
Height
79" 87" 94" 102" 110" 118"
A 6.3" 6.7" 7.5" 7.9" 8.7" 9.4"
B 16.5" 18.1" 20" 21.7" 23.2" 25.2"
C 31.5" 34.6" 37.8" 40.9" 44.1" 47.6"
D 49.6" 54.7" 59.8" 64.6" 69.7" 74.8"
E87" 95.7" 104.3" 113" 121.7" 130.7"
F 62.6" 68.9" 75.2" 81.5" 87.8" 94.1"
G 40.9" 44.9" 48.8" 53.1" 57.1" 61.4"
Z 1.6" 1.6" 1.8" 2" 2.2" 2.4"
See below for areas affected
b) Setting up for Width Coverage
The area width can be adjusted by eliminating the outer areas of detection. (See figures 8,9)
The angle of the area can also be adjusted as shown below. (See figure 9)
Figure 8
Figure 9
Figure 10 Coverage Chart
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Acusensor 3
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c) Operation Mode Set up
1) Mutual Interference Prevention Setting
Sensors placed close to each other should be set to different
Interference Prevention Settings
When multiple Acusensor 3’s are used in close proximity to each other,
such as in a vestibule, the use of different modes will help prevent mutual
interference. Using the mode switch, four modes are possible through a
combination of positions on switches 3 and 4. Following is an example of
one combination which might be used in a vestibule. (Figure 12)
Sensors facing
each other or
next to each
othershould
always be set to
different modes
Figure 11
Figure 12
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2) Sensitivity setting
Three sensitivities are available. High is the most sensitive setting. Low is
the least sensitive setting. Under normal circumstances the medium setting
should be used. When adequate detection cannot be achieved, use a higher
sensitivity. If the Acusensor 3 activates unnecessarily, use the lower sensi-
tivity. When low sensitivity is used, care must be taken to assure that ade-
quate sensing is maintained.
Normally set to “M”
There are also four levels of snow immunity that can be set using dip
switches 5 and 6. Level 3 has the highest immunity (this may reduce
sensitivity a small amount).
Note: Snow mode is only active when the temperature is at, or below 41°F (5°C)
If the sensor is installed during a warmer time of year, a second visit, when colder, may be
necessary to check the detection pattern with snow mode activated.
3) Presence detection time
The Acusensor 3 computer will establish a base memory pattern of the total
detection area when power is applied. Changes within the memorized detection
area, whether on the floor or above the floor, will generate a signal to open the
door. The base memory pattern will change automatically after the selected
memory time set lapses if there is no movement within the detection area. The
time interval at which these memory pattern changes will occur, can be
adjusted using the dip switches 1 and 2.
Figure 12
Figure 13
Figure 14
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Acusensor 3
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CAUTION: The Acusensor 3 emits active reflective infrared rays that detect the
changing light intensity reflected from the floor surface in the detection
area. The detection area is the reference area as determined by the
Acusensor 3. Detection sensitivities can vary depending on the color of the
object being detected. Care should be taken to ensure the sensor is adjust-
ed to reliably detect colored objects consistently.
Detection areas will fluctuate as the sensitivity is adjusted.
Be sure to confirm that the detection area is properly adjusted after any
sensitivity adjustments are made.
4. Turning ON the power
A. After installation and adjustments are completed, turn “ON” the
power to the sensor, wait a minimum 10 seconds, then confirm the
detection area.
B. If the sensor does not detect or misdetects, confirm the detection area
and mode setting and readjust if necessary.
C. The doors could recycle or remain open indefinitely under the following
conditions:
a. When adjusting the detection area or setting mode
b. When moving a mat within the detection area, such as when
cleaning it.
c. When replacing a mat.
d. When moving things within the detection area or placing
something new there.
 The Acusensor 3 starts to operate within seconds after the power is applied.
However, at this point it is detecting motion only. For the final setup, keep
out of the detection area. There must be no motion within the detection area
for at least 10 seconds before presence detection can be established.

CAUTION
Please confirm that the wiring is correct before turning “ON” the power.
Turn power “OFF” before making adjustments to the detection area or
setting the mode setting switch

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Acusensor 3
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5. Output Indicator
A LED shows the following conditions.
6. Notice on usage
A. The Acusensor 3 is designed to provide a detection area as close to the
door as possible for maximum coverage. If the Acusensor 3 is installed
on a non-vertical surface, the door may end up inside the detection area.
When installing the Acusensor 3, adjust the detection area so that the
Acusensor 3 does not detect the door.
B. Be sure to unplug the sensor first before changing the detection or mode
settings (If the settings are changed when the power is ON, the Acusen-
sor 3 may malfunction.)
C. Electric power consumption is 100mA (max) at 12VDC per Acusensor 3.
Under low power conditions, the Acusensor 3 may malfunction.
Be certain the power supply used is capable of supplying the necessary
current required for all devices.
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Acusensor 3
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D. If you install an Acusensor 3 in a place where
rain falls and puddles form, or excessive auto
mobile exhaust or insects accumulate, the
Acusensor 3 may malfunction. To avoid this,
lower the sensitivity.
(See page 11 in this Instruction Manual.)
E. If you have a short split curtain, flowerpot or any
other items that may shake in the detection area,
the Acusensor 3 may false activate. Move the
items out of the detection area.
F. If a door mat is used on the floor, a shop sign or a
shopping basket is put in the detection area, do
not set the standstill object detection time to
“forever detection”. If the items in the detection
area move a bit, the door may be held open.
G. If two or more Acusensor 3s are used
close to one another, ghosting may occur
due to mutual interference. Be sure that
every Acusensor 3 has a different
mutual interference mode. (See page 10
in this Instruction Manual.)
H.Too much reflected light off the floor may
reduce the sensitivity causing the
Acusensor 3 to malfunction. Adjust depth
and width area accordingly.
I. If the Acusensor 3 is installed in a place where rain or snow falls on it,
damage to the sensor may occur. In this case, use Acusensor 3 Rain
Cover ( P/N 14-13783 ).
J. If the background condition within the infrared detection area sudden-
ly changes due to a strong snowstorm, the Acusensor 3 could ghost. In
this circumstance, choose the Snow mode or lower the sensitivity. After
the sensor is set to Snow mode, make sure the detection area is
properly set. (See page 11 in this Instruction Manual.)
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7. Troubleshooting
Condition Possible cause Solutions
Does not work
Failure of power/lead
wire
Check the wiring and connectors
Abnormal power source
Check to ensure the correct voltage is being supplied to the of Acusensor 3
(12~24VAC/DC.)
Does not detect
Sensor filter is dirty due
to dust or water drops
Wipe the filter with a soft cloth with neutral detergent.
(Do not use chemicals such as thinner or alcohol.)
Low sensitivity Adjust for higher sensitivity using the mode switch.
Detection area inappro-
priate
Adjust the detection area by area setting switch, depth screw and base angle.
Misdetection
High sensitivity Lower the sensitivity using the sensitivity switch.
Overlap of detection
area with other sensors.
Change interference prevention mode to be different from other Acusensor 3’s.
(When two Acusensor 3’s interfere with each other, use mode A and mode B)
Sensor detecting door
Confirm whether detection area is inclined toward the door. Adjust the detec-
tion area by depth screw or base angle.
Moving object is within
detection area such as a
flag or a potted plant
Adjust detection area in order to avoid detecting the moving object or move the
object out of the detection area.
Detection area has
changed
When the detection area changes from shopping carts being left in the doorway
etc., the sensor will keep on detecting for the time set for presence detection
time. Set presence detection time shorter using the dip switches.
Note: Do not set presence detection time shorter than ANSI requirement.
Questions?
Call Nabco Technical Assistance @ 1-866-622-8325