Optex AX-350DH MK III User manual

AX-350DH MK III
AX-650DH MK III
AX-350DH TS
AX-350DH BT
No.59-1073-0 0406-04
FEATURES
CONTENTS
·Multiple beam installation of up to 4 sets
·Simple optical alignment
·High waterproofing property; jet-proof : IP65
·Wide optical alignment range:
±90 degrees horizontally; ±20degrees vertically
*AX-350DH BT:
±60 degrees horizontally; ±45 degrees vertically
·Reduced possibility of false alarms caused by flying
objects
1. INSTALLATION GOOD PRACTICE
2. PARTS IDENTIFICATION
3. NOTES ON INSTALLATION
4. INSTALLATION METHOD
5. TERMINAL CONNECTIONS
6. WIRING
7. OPTICALALIGNMENT
8. BEAM INTERRUPTION TIME ADJUSTMENT
9. RE-TRANSMISSION FUNCTION
10. WALK TEST
11. HEATER UNIT HU-2
12. BACK COVER BC-1
13. DIMENSIONS
14. TROUBLESHOOTING
15. SPECIFICATIONS
2
3
3
4
6
7
8
11
11
12
12
13
13
15
16
-1-
INSTALLATION
INSTRUCTIONS
top/bottom unit AND/OR selectable
maximum detection range: 350ft.(100m)
PHOTOELECTRIC DETECTOR
·Digital communication function
·Cross talk prevention function
·Peak Finder Interface (P.F.I ) of Dual Alignment
Level Indicator
·Mode-specific indicator allowing simple and
accurate optical alignment
·Simple beam alignment without the “Beam
Blocking Tool”
·Minimization of light disturbance
·ATPC ( Auto Transmit Power Control )
to optimize the power of beam
Thank you for purchasing our product.Be sure to read the
following installation instructions carefully before beginning
installation.Make sure that the person in charge of system
management stores this manual carefully for maintenance
and management.
model for beam tower, upper and lower unit unit AND/OR selectable
maximum detection range: 350ft.(100m)
maximum detection range: 350ft.(100m)
maximum detection range: 650ft.(200m)

-2-
For Safe Use of the Product
¥Read this instruction manual carefully prior to installation, for safe use of the product.
¥After reading, store this manual carefully in an easily accessible place for reference.
¥This manual uses the following warning indications for correct use of the product and preventing any harm to you or other
people and damage to your assets, which are described below. Be sure to understand the description before reading the
rest of this manual.
Failure to follow the instructions provided with this indication and improper handling may
cause injury and/or property damage.
CAUTION
Failure to follow the instructions provided with this indication and improper handling may
cause death or serious injury.
WARNING
This symbol indicates prohibition. The specific prohibited action is provided in and/or around the figure.
This symbol requires an action or gives an instruction.
Do not use the product for purposes other than the detection of moving
objects such as people and vehicles. Do not use the product to activate a
shutter, etc., which may cause an accident.
Clean and check the product periodically for safe use. If any problem is found,
do not attempt to use the product as it is and have the product repaired by a
professional engineer or electrician.
Do not touch the unit base or power terminals of the product with a wet
hand (do not touch when the product is wet with rain, etc.). It may cause
electric shock.
Do not exceed the voltage or current rating specified for any of the terminals
during installation, doing so may cause fire or damage to the devices.
Never attempt to disassemble or repair the product. It may cause
fire or damage to the devices.
Do not pour water over the product with a bucket, hose, etc. The water
may enter, which may cause damage to the devices.
WARNING
CAUTION
<Note> This product is not an antitheft device.
Please be notified that we will not be held responsible for any damage caused in the unlikely event of theft.
1. INSTALLATION GOOD PRACTICE
[2] Do not install the unit
where objects moved by the
wind such as plants and
laundry, which may block the
beam.
[1] Mount unit only on a solid
surface.
The following items are important to ensure the performance of the product. Be informed that the detector may not detect
objects if not installed correctly.
[4] Mount the units in such
a way that the infrared
beam of any other model
does not enter the
Receiver.
[6] The mounting pole should have a
solid footing.
[5] Avoid aerial wiring. [7] Ensure that the mounting distance
between the Transmitter and the
Receiver (maximum detection range)
is within the rating.
35-350ft. (10-100m):
AX-350DH MK III
AX-350DH TS
AX-350DH BT
65-650ft.(20-200m) :
AX-650DH MK III
[3] Prevent direct sunlight
from entering into internal
optics.
AX-DH series

-3-
28-39inch(0.7-1m)
23.5 inch(60cm)
39 inch(1m)
2. PARTS IDENTIFICATION
Mounting Plate
Wall Mounting Screw
Holes & Waterproof
Plug (x 4)
Vertical Alignment Dial
Terminals
See 5. “TERMINAL” on PAGE6.
Horizontal Alignment Dial
View Finder
Cover Lock Screw
Cover
Unit Base
Mounting Screw
(x 4)
Wiring Hole (x 2)
Monitor Jack
Alignment Level Indicator
Unit Base Pole Mounting
Screw Holes &
Waterproof
Plug (x 4)
Rubber
Bushing
Rubber Bush Slot
Pole Mounting
Screw Holes &
Waterproof Plug
(x 4)
Hood
Hood
Switch Section
Transmitter
Receiver
Clears the registered address (see 14. “TROUBLESHOOTING” on Page15).
Indicates the registered address by the flickering of the six indicator LEDs for about 10
seconds (see 14. “TROUBLESHOOTING” on Page15).
Switches between high and low the level of infrared beam reception output to the monitor
jack.
Use this switch for multi-level installation (see 7-2. “Master/slave selector switch setting” on
Page8).
Switches the interruption time between the four settings (see 8. “BEAM INTERRUPTION TIME
ADJUSTMENT” on Page11).
This switches the detection time for the top unit when AX-350DH TS / BT in the OR mode.
Switch to the AND mode for detection of simultaneous interruption for the top and the bottom
units and to the OR mode for detection of interruption for either unit (see 7-3. “AND/OR
selector switch setting” on Page8).
Turning the switch to ON in the OR mode fixes the interruption time for the bottom unit to one
second (see 8. “BEAM INTERRUPTION TIME ADJUSTMENT” on Page11).
ADDRESS CLEAR:
ADDRESS CHECK:
MONITOR JACK switch:
MASTER/SLAVE switch:
INTERRUPTION TIME switch:
AND/OR switch:
(AX-350DH TS / BT only)
Resets the registered address to the factory settings
(see 14. “TROUBLESHOOTING” on Page15).
Indicates the registered address by the flickering of the six indicator LEDs for about 10 seconds
(see 14. “TROUBLESHOOTING” on Page15).
Switches between high and low the level of infrared beam reception output to the monitor jack.
Use this switch for multiple beam installation (see 7-2. “Master/slave selector switch setting” on Page8).
When more than one detector with the same address is on the alarm line, switches one of them
to prevent malfunction caused by cross talk (see 14. “TROUBLESHOOTING” on Page15).
Switch to the AND mode for detection of simultaneous interruption for the top and the bottom
units and to the OR mode for detection of interruption for either unit (see 7-3. “AND/OR selector
switch setting” on Page8).
ADDRESS CLEAR:
ADDRESS CHECK:
MONITOR JACK switch:
MASTER/SLAVE switch:
FORCED ADDRESS switch:
AND/OR switch:
(AX-350DH TS / BT only)
BOTTOM UNIT INTERRUPTION TIME switch:
(AX-350DH TS / BT only)
3. NOTES ON INSTALLATION
[2] Alignment angle[1] Detection range and installation height [3] Pole mounting
·Pole size should be diameter
1.9inch(48mm).
·The length of the wiring cable out of
the pole should be within 23.5
inch(60cm).
Without AX-350DH BT
180 degrees (± 90 degrees) 40 degrees (± 20 degrees)
AX-350DH BT
120 degrees (± 60 degrees) 90 degrees (± 45 degrees)
distances between the Receiver and
the Transmitter are listed below:
Horizontally Vertically
35-350ft.(10-100m) : AX-350DH MK III, AX-350DH TS,
AX-350DH BT
65-650ft. (20-200m) : AX-650DH MK III
Normally, the installation height should
be 0.7 – 1.0m. When OR mode is used,
the installation height of lower beam
should be 15cm from the ground.
For best performance, avoid aligning
detectors at 45 degree angles except
AX-350DH BT.
Note

4. INSTALLATION METHOD
-4-
When using the back cover BC-1 (optional), see 12. “BACK COVER BC-1” on Page13
[5] Securing the mounting plate
[1] Removing the cover
[6] Mounting the unit base
4-1. Wall mounting
[4] Threading the wire
[2] Removing the unit base
[3] Preparing the wiring grommet
Loosen the cover lock
screw and remove the
cover.Loosen the four unit base
mounting screws and remove
the unit base by sliding it upward.
The screws do not need to be
removed.
Cut the wiring grommet
required according to
the wire diameter. Use
the lidded grommet for
the wiring hole not to be
used.
[7] Connecting the terminals and aligning beams [8] Checking the operations and attaching the cover
Remove the cap from the wiring hole
and pull the wire through the hole.
Then thread the wiring grommet down
to about 3.9inch(10cm) from the end
of the wire, apply the wiring grommet
to the indentation at the wiring hole
and securely tighten the cap.
Remove the four
waterproof plugs on the
wall mounting screw
holes and mount the
plate with the self-
tapping screws
provided. Then securely
attach the waterproof
plugs.
When wiring from the
under surface, break the
knockouts on the rear of
the chassis.
Secure the unit base
in the reverse order of
removing. Make sure
that the unit base
touches the stopper.
See 5. “TERMINAL
CONNECTIONS” on Page6
to make connections to the
terminals and refer to 7.
“OPTICAL ALIGNMENT” on
Page8 to make alignment
for the maximum level of
light reception.
Stopper
Knockouts
Note
When removing the cover,
do not put your finger on the
hood, which may cause
damage.
See 10. “WALK TEST ” on Page12
to check the installation, put on the
hook at the top of the cover to attach
the cover and tighten the cover lock
screw.
diameter 0.43-0.51inch
(11-13mm)
diameter0.28-0.35inch
(7-9mm)
diameter 0.2-0.28inch
(5-7mm)(lidded)
diameter 0.35-0.43inch
(9-11mm)

-5-
[4] Preparing the U-shaped brackets
[1] Removing the cover
4-2. Pole mounting
[2] Removing the unit base
Loosen the cover lock
screw and remove the
cover.
Loosen the four unit base
mounting screws and
remove the unit base by
sliding it upward.
The screws do not need to be
removed.
[8] Connecting the terminals and optical alignment [9] Confirmation of action and attaching the cover
Attach the screws
provided to the U-
shaped brackets.
When wiring from the under
surface, break the knockouts
on the rear of the chassis.
Secure the unit base in
the reverse order of
removing. Make sure that
the unit base touches the
stopper
Remove the waterproof plugs
from the pole mounting screw
holes and screw the
mounting plate onto the U-
shaped brackets. Then
securely attach the waterproof
plugs.
[6] Securing the mounting plate
*Two-unit installation (back to back)
After mounting one of the
units on the pole, place the
U-shaped bracket in the
gap. Mount the screws and
secure the mounting plate.
See 5. “TERMINAL
CONNECTIONS” on Page6 to
make connections to the
terminals and refer to 7.
“OPTICAL ALIGNMENT” on
Page8 to make alignment for
the maximum level of light
reception.
See 10. “WALK TEST ” on Page12 to
check the installation, put on the
hook at the top of the cover to attach
the cover and tighten the cover lock
screw.
Knockouts
Stopper
Remove the cap from the wiring hole
and pull the wire through the hole. Then
thread the wiring grommet down to about
3.9inch(10cm) from the end of the wire,
apply the wiring grommetto the
indentation at the wiring hole and
securely tighten the cap.
Note
When removing the cover,
do not put your finger on
the hood, which may
cause damage.
Cut the wiring
grommet required
according to the wire
diameter. Use the
lidded grommet for
the wiring hole not to
be used.
diameter0.43-0.51inch
(11-13mm)
diameter 0.28-0.35inch
(7-9mm)
diameter 0.2-0.28inch
(5-7mm)(lidded)
diameter0.35-0.43inch
(9-11mm)
[3] Preparing the wiring grommet
[7] Mounting the unit base
[5] Threading the wire

-6-
COM.
N.C.
N.O.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
5. TERMINAL CONNECTIONS
Do not exceed the voltage or current rating specified for any of the terminals
during installation, doing so may cause fire or damage to the devices.
WARNING
5-1.AX-350DH MK III, AX-650DH MK III
ALARM OUTPUT
Form C (28VDC 0.2A max.)
*An alarm is outputted from upper unit during OR mode
BOTTOM UNIT ALARM OUTPUT
N.C. (28VDC 0.2A max.)
*Relay opens during the AND mode
5-3.AX-350DH BT
R-T SYNCHRONOUS
<Receiver>
POWER INPUT
10.5-30VDC
ALARM OUTPUT
Form C (28VDC 0.2A max.)
SPARE
TAMPER OUTPUT
N.C. (28VDC 0.2A max)
SPARE
POWER INPUT
10.5-30VDC
R-T SYNCHRONOUS
SPARE
TAMPER OUTPUT
N.C. (28VDC 0.2A max.)
SPARE
POWER INPUT
10.5-30VDC
SPARE
SPARE
R-T SYNCHRONOUS
ALARM OUTPUT
Form C (28VDC 0.2A max.)
*An alarm is outputted from upper unit during OR mode
BOTTOM UNIT ALARM OUTPUT
N.C. (28VDC 0.2A max)
*Relay opens during the AND mode
<Receiver>
<Receiver>
5-2.AX-350DH TS
ALARM INPUT
*See 9. “RE-TRANSMISSION FUNCTION” on Page11
<<
<<
<Transmitter>>
>>
>
POWER INPUT
10.5-30VDC
TAMPER OUTPUT
N.C. (28VDC 0.2A max.)
SPARE
R-T SYNCHRONOUS
T-T SYNCHRONOUS
POWER INPUT
10.5-30VDC
TAMPER OUTPUT
N.C. (28VDC 0.2A max.)
SPARE
R-T SYNCHRONOUS
T-T SYNCHRONOUS
ALARM INPUT
*See 9. “RE-TRANSMISSION FUNCTION” on Page11
POWER INPUT
10.5-30VDC
SPARE
R-T SYNCHRONOUS
T-T SYNCHRONOUS
<<
<<
<Transmitter>>
>>
>
<<
<<
<Transmitter>>
>>
>
COM.
N.C.
N.O.
N.C.
N.C.
COM.
N.C.
N.O.
N.C.
N.C.
N.C.
N.C.
‡(1)
(2)
(3)
(4)
(5)
(8)
(9)
(6)
(7)
‡(1)
(2)
(3)
(4)
(5)
(8)
(9)
(6)
(7)
(10)
(11)
‡(1)
(2)
(3)
(4)
(5)
(8)
(9)
(6)
(7)
(10)
(11)
‡(1)
(2)
(3)
(4)
(5)
(8)
(9)
(6)
(7)
(10)
(11)
(12)
(13)
‡(1)
(2)
(3)
(4)
(5)
(8)
(9)
(6)
(7)
(10)
(11)
‡(1)
(2)
(3)
(4)
(5)
(8)
(9)
(6)
(7)
(10)
(11)
(12)
(13)

-7-
(4)(3)(1) (1)(2)(2)
6-1. Wiring example
6. WIRING
1-set installation
12VDC
ALARM
INPUT
CONTROL PANEL
Connect the power supply in parallel.
ReceiverTransmitter
Multi-level installation
Connect the power supply in parallel. Connect the units serially for a
normally closed alarm output and in parallel for a normally open output
(the figure below shows an example for a normally closed alarm output).
Provide the Transmitter/Receiver synchronization wiring and refer to 7-
2. “Master/slave selector switch setting” on Page8 to make the switch
setting.
12VDC
ALARM
INPUT
CONTROL PANEL
Receiver(Master)
Transmitter(Master)
Receiver(Slave)
Transmitter(Slave)
Note
Be sure to make T-T synchronous
wiring.
Installation of 2 or more sets
Connect the power supply in parallel. Connect the units serially for a normally closed alarm output and in parallel
for a normally open output (the figure below shows an example for a normally closed alarm output).
For linear alarm, provide the Transmitter/Receiver synchronization wiring.
12VDC
ALARM
INPUT
CONTROL PANEL
Receiver
Transmitter
Receiver
Transmitter Be sure to make R-T synchronouse wiring.
Note
6-2. Wiring distance between power supply and detector
-Ensure that the wiring distance from the power
supply is within the range shown in the table on
the right.
-When using two or more units on one wire, the
maximum length is obtained by dividing the wire
length listed below by the number of units used.
WIRE SIZE 12VDC 24VDC 12VDC 24VDC
AWG22 420' 3600' 360' 3100'
(0.33mm
2
)
(130m) (1100m) (110m) (950m)
AWG20 650' 5500' 550' 4500'
(0.52mm
2
)
(200m) (1700m) (170m) (1400m)
AWG18 980' 8800' 880' 7200'
(0.83mm
2
)
(300m) (2700m) (270m) (2200m)
AWG16 1470' 12400' 1240' 10000'
(1.31mm
2
)
(450m) (3800m) (380m) (3200m)
AX-350DH TS
AX-650DH KⅢAX-350DH BT
odel AX-350DH KⅢ
(4)(3)
(1)(2)(4) (3) (1)(2)
(4)
(3)
(1)
(2)
(4)
(3)
(1)
(2)
(4)(3)(1)(2)(1)(2)(5)(6)(4)(3)(1)(2) (8)(7)(1)(2)

-8-
·In order to obtain the optical alignment accurately, apply the supplied optical reduction plate on
the both upper and lower beams of one of the transmitter or receiver. Use the optical reduction
plate according to installation distance. Remove the plate after the optical alignment is completed.
7. OPTICAL ALIGNMENT
7-1. Aligning the optical axis
·Optical alignment is an important feature for maximizing the reliability of the product. Follow the instructions
given in 7-2 to 7-5 in this chapter and make adjustment in such a way that the maximum voltage of the monitor
jack is confirmed with the level indicator.
·Be sure to start optical alignment with the top beam .
The level indicator of the Transmitter may not work if the beam
at the top level is not aligned.
level indicator signal
ReceiverTransmitter
The master/slave selector switch is provided for preventing cross talk between infrared beams for multi-level alarm.
From the top level, set the switches of both the Transmitter and the Receiver to Master -> Slave 1 -> Slave 2 -> Slave
3.
7-2. Master/slave selector switch setting
Master
Slave 1
Slave 2
Slave 3
Be sure to make T-T synchronous wiring.
Be sure to set the switch to Master for single-level installation.
Note
7-3. AND/OR selector switch setting (AX-350DH TS and AX-350DH BT only)
Make sure that the covers of both the Transmitter and the Receiver are open (the rubber bushings are not
inserted for AX-350DH BT) when setting the switches.
Models AX-350DH TS and AX-350DH BT allow switching between top/button level AND and OR detection modes.
Using the OR detection mode is effective for detecting smaller human objects such as ingress by crawling.
Be informed, however, OR mode may cause an increase in false alarms due to flying debris or small animals, care should
be taken to ensure that all factors are considered when selecting OR mode.
AND mode OR mode
Note
<Receiver>
<<
<<
<Transmitter>>
>>
>
AND mode OR mode
AX-350DH K
Ⅲ
, AX-350DH TS, AX-350DH BT
35 - 135' 135 - 350'
(10 - 40
ｍ
)
(40 - 100
ｍ
)
Optical Reduction Plate for short distance not supplied
AX-650DH K
Ⅲ
70 - 165' 165 - 350' 350 - 650'
(20 - 50
ｍ
)
(50 - 100
ｍ
)
(100 - 200
ｍ
)
Optical Reduction Plate for short distance for middle distance not supplied
Installation distance
Installation distance

-9-
OK NG
Level indicator alignment is needed after the optical alignment is completed through viewfinder.
7-3. Rough alignment by viewfinder
Be sure to adjust both the upper and lower mirrors.
While looking through the viewfinder on the left or right of the mirror, turn the dial to make alignment in such a way that
the other detector is at the center of the sights.
Note
Vertical Alignment Dial Horizontal Alignment Dial
7-4. Adjustment with level indicator
Fast flicker
Slow flicker
After the rough alignment using the viewfinder, make sure that one or more
level indicator LEDs are illuminated or flickering for both the top and the
bottom levels. If not, make adjustment again with the viewfinder.
In the rough alignment mode, each
LED of the level indicator switches
from the flickering to the continuously
ON state as the level of light reception
becomes higher.
[1] Checking of illumination of the indicator
[2] Adjustment in the rough alignment mode
Make optical alignment until the level indicator LED at the “Good” position
is illuminated. At this time, the level indicator LEDs at the lower positions
remain illuminated. This condition is called the rough alignment mode.
Be sure to start rough alignment
with the upper mirror. Otherwise
the level indicator of the
Transmitter may not work.
Continuously ON
Note
Once the level indicator LED at the “Excel” position is illuminated, all of the
LEDs start flickering fast together, which indicates that the mode is switched
to the fine adjustment mode. The level indicator LEDs at the lower positions
do not remain illuminated in the fine adjustment mode.
[3] Switching to the fine adjustment mode
Depending on the accuracy of the rough alignment by viewfiner, the beam adjustment
may be started from fine adjustment mode without rough adjustment mode.
Note
It may not change to fine adjustment mode when the detector is used with maximum
distance.
[4] Adjustment in the fine adjustment mode
When the mode is switched to the fine adjustment mode, the level indicator LEDs start flickering and
the indication point falls.How far the indication point goes down depends on the situation. Finding
the peak position in this condition allows fine-tuning.When the level of the “Excel” level indicator LED
exceeds the flickering level in the fine adjustment mode, all of the LEDs start flickering together again
and the indication point falls automatically. Repeat this until the alignment peaks.
Note
In the fine adjustment mode, the indication point may not reach the “Excel” position. This
indicates fine adjustment condition above the “Excel” position, which means that it causes
no problem in operation.

-10-
Relation between monitor jack output and beam achievement level
Level of received light can be checked with voltmeter same as level indicator performs.
[2] Check the alignment level with volt meter
Make the optical alignment to reach its peak after the alignment through viewfinder is completed.
First of all, the monitor jack level has to be over 2.9V(AX-650DHMK III requires over 2.2V) when the optical alignment is
completed. This is equivalent to the rough adjustment mode by the level indicator.
[3] Peak Find Adjustment
Check the alignment level with volt meter to ensure that proper
alignment has been achieved. Switch the monitor jack switch
to make sure that the voltage from both upper and lower beam
is over 0.3V.
Readjustment through viewfinder is required in case of the
voltage is under 0.3V.
monitor jack switch
The condition of the monitor jack being outputted over 3.4V is called “fine adjustment mode”.
Furthermore, if the optical alignment is adjusted continuously and a monitor jack output achieves to 4.8V, the output value
of a monitor jack will fall automatically.
In order to obtain the finest adjustment, this operation executes repeatedly.
In fine adjustment mode, the monitor jack output may not achieve 4.6V but there is no problem using the detector with this
condition because the beam is in the state more than the superior position in rough adjustment mode when the optical
adjustment mode switches to fine adjustment mode.
rough adjustment mode
}
}
fine adjustment mode
(8steps)
Beam achievement level
Low
High (peak)
7-5. Fine adjustment with monitor jack
[1] Preparing the voltmeter
Depending on the accuracy of the rough alignment by viewfiner, the beam adjustment may be
started from fine adjustment mode without rough adjustment mode.
Note
Be sure to start rough alignment with the upper mirror. Otherwise the level indicator of the Transmitter may not work. Note
It may not change to fine adjustment mode when the detector is used with maximum distance.
-+
After the rough alignment using the viewfinder, make
adjustment with the monitor jack for more accurate
optical alignment. Set the voltmeter range to 5 to 10
VDC and connect the voltmeter probes and to
and of the monitor jack respectively.
-
+
-
+

-11-
AND detection mode :
OR detection mode :
time which both upper and
lower beams are interrupted
time which either upper or
lower beam is interrupted
Beam interruption period
This adjustment function allows you to match the sensitivity of the unit to its surroundings.
Adjusting the interruption time determines the speed of objects detected by the detector.
-When any large flying object to be disregarded such as a bird or a newspaper can occasionally interrupt the beam, set
an appropriately long interruption time.
-Be sure to check the operation after adjusting the interruption time.
8. BEAM INTERRUPTION TIME ADJUSTMENT
Set the interruption time adjustment switches of the Receiver according to the speed of the human object to detect.
35m sec 100m sec 250m sec 500m sec
Bottom level interruption time adjustment (AX-350DH TS / BT only)
When the top/bottom level OR alarm is set, the interruption time for the bottom level can be set to 1 second.
When the switch is turned OFF, the interruption time is set to the same as that of the top level.
synchronizes with the top unit 1sec
9. RE-TRANSMISSION FUNCTION (AX-350DH TS, AX-350DH BT only)
<Connection method>
[1] Remove the jumper (U-shaped connector) between
the alarm input terminals of the Transmitter.
Be sure to connect the jumper (U-shaped connector) when not using the alarm input terminal.
If the jumper is removed, the transmission of the beam is stopped, which causes the Receiver
to output an alarm signal.
[2] Connect the alarm output (normally closed) of other detector to the external
alarm input terminal of the Transmitter (it cannot be connected to a sensor
with a normally open alarm output).
ALARM INPUT
Note
ALARM INPUT
12VDC
ALARM
INPUT
CONTROL PANEL
Receiver
Transmitter
POWER
N.C.
ALARM
OUTPUT N.C.
ALARM
OUTPUT
N.C.
No wiring
ALARM
INPUT
12VDC
POWER
(11)
(10)
(1)
(2)
(1)
(2)
(3)
(4)
Detector
or
Switch
N.C.
ALARM
OUTPUT
N.C.
Transmitter
(10)
(11)
U-shaped connector
N.C.
Transmitter
(10)
(11)

-12-
*AX-350DH TS and AX-350DH BT has
alarm output for lower detector.
1
2
3
10. WALK TEST
Make sure that the “Alarm condition”
LED is OFF. If it is illuminated even
when the beams are not blocked,
make optical alignment again.
If the “Alarm condition” LED is
turned ON when the beam is
blocked, installation is complete.
Be sure to conduct a walk test (to
block the infrared beam) at the
following three points:
1. In front of the Transmitter
2. In front of the Receiver
3. At the middle point between the
Transmitter and the Receiver
If the “Alarm condition” LED is not illuminated even if the beam is blocked, follow the instructions in “14.
TROUBLESHOOTING” on Page15 and solve any problem.
Alarm condition
Note
Receiver
Transmitter
Alarm condition
11. HEATER UNIT HU-2 (Option)
11-1. Mounting method
- Feature -
The heat release effect makes the unit less prone to frost.
When connecting the heater unit leads to the wiring, solder the wires or use the
connectors provided with the heater unit and securely connect the wires one by
one.Put the connector on the wires and crimp with pliers, etc.
Remove the cap from the wiring hole and pull the wire through the hole. Then
thread the wiring packing down to about 6 inch from the end of the wire and
securely tighten the cap.
Remove the release paper on the rear of the heater unit and paste the unit in line
with the guide of the mounting plate for both the top and the bottom levels.
Power supply of 24 VAC/DC is required to use the heater unit.
Use separate wiring from that of the detector because the current
draw of the heater unit can be as large as 430 mA each.
Be sure to mount the heater unit for both the top and the bottom
levels. Otherwise the effectiveness may be reduced.
Note
Note
WIRING DISTANCE
AWG18 (0.83mm2)500'(150ｍ)
AWG16 (1.31mm2)850'(250ｍ)
AWG14 (2.09mm2)1300'(400ｍ)
WIRE SIZE
11-2. Wiring distance between power supply and detector
·Ensure that the wiring distance from the power supply is within the range shown
in the table on the right.
·When using two or more units on one wire, the maximum length is obtained by
dividing the wire length listed below by the number of units used.
*AX-350DH TS and AX-350DH BT has
alarm output for lower detector.

-13-
12. BACK COVER BC-1 (Option)
[1]
See 4. “INSTALLATION METHOD”
to mount the detector on the pole.
- Feature -
Hides the pole and wiring on the rear of the detector for tidier appearance.
Break the knockout of the back
cover with pliers, etc.
[2] [3]
Screw the back cover onto
the detector.
13.DIMENSIONS
•< AX-350DH MK‡V‡V
‡V‡V
‡V , AX-650DH MK‡V‡V
‡V‡V
‡V , AX-350DH TS >
with BC-1•(Option)
Dimensions:inch (mm)
4.4(112)
16.3(415)
5.2(131)
7.2(183)
3.94(100)
9.45(240)
3.03(77)
2.24(57)

3.1(78)
1.7(43)
0.06(1.5)
< HU-2 >
Dimensions:inch (mm)
< AX-350DH BT >
Dimensions:inch (mm)
120°
3.03(77)
3.6(91)
3.94(100)
90°
16.6(421)
3.4(85)
3.1(78)
-14-

14. TROUBLESHOOTING
-15-
Corrective Action
Check the voltage and make sure that it is between
10.5 and 30 VDC.
Check the wiring.
See 6-2 “Wiring distance between power supply
and detector” on Page7 and check the wiring
distance.
Check the voltage and make sure that it is between
10.5 and 30 VDC.
See 6-2 “Wiring distance between power supply
and detector” on Page7 and check the wiring
distance.
See 7. “OPTICALALIGNMENT” on Page8 to make
realignment. If the problem persists, remove any
object that reflects the beam or change the
location of installation.
Ensure that the top and the bottom beams are
blocked at the same time.
See 5. “TERMINAL” on Page6 to make
synchronization wiring, press the ADDRESS
CLEAR switch and close the cover.
Press the ADDRESS CHECK switch and check
the indicator illumination to see if there is any
detector with the same address. If there is, change
the FORCED ADDRESS switch setting of one of
the Transmitters, press the ADDRESS CLEAR
switch and close the cover.
Check the wiring.
Repair is required. Contact the distributor or us.
See 7. “OPTICAL ALIGNMENT” on Page8 and
make realignment.
Remove the object or move the unit to a place
without any object that may block the beam.
Press the ADDRESS CLEAR switch and put the
cover on.
See 7. “OPTICAL ALIGNMENT” on Page8 and
make realignment.
See 7-2. “Master/slave selector switch setting” on
Page8 and switch to MASTER.
See 7-2. “Master/slave selector switch setting” on
Page8 and correct the switch settings.
See 6-1. “Wiring example” on Page7 and provide
the synchronization wiring correctly.
See 8. “INTERRUPTION TIME ADJUSTMENT” on
Page11 and set an appropriate interruption time.
Remove any object blocking the beam.
Clean the cover (wipe the cover with a soft cloth
dampened with water or diluted neutral detergent).
See 7. “OPTICAL ALIGNMENT” on Page8 and
make realignment.
See 8. “INTERRUPTION TIME ADJUSTMENT” on
Page11and set an appropriate interruption time.
Change the location.
See 7. “OPTICAL ALIGNMENT” on Page8 and
make realignment.
Make switching with the covers (rubber bushings
for AX-350DH BT) of both the Transmitter and the
Receiver removed.
Problem
LEDs on the Transmitter are
not illuminated.
LEDs on the Receiver are not
illuminated
“Alarm condition” LED is not
illuminated even if the beam
is blocked in front of the
Receiver.
Blocking the beam in front of
the Receiver illuminates the
“Alarm condition” LED but
does not activate the alarm.
“Alarm condition” LED of the
Receiver does not go out.
Frost, snow or heavy rain
causes false alarm.
Alarm is activated even if the
light is not blocked.
Indicator LEDs of the
Transmitter are not
illuminated.
AND/OR switching cannot be
made.
Possible Cause
Inappropriate power voltage
Disconnection in power line
Inappropriate wiring distance or wire diameter
Inappropriate power voltage
Inappropriate wiring distance or wire diameter
Infrared beam reflected on the floor or wall of
the building to enter the Receiver
Top and bottom beams not blocked at the
same time.
T-T synchronization or R-T synchronization
wiring not in place
Detector of the same address installed
Signal line short-circuited
Alarm contact welded
Optical axis of Transmitter and Receiver not
aligned
Object blocking the beam between Transmitter
and Receiver
The addresses of Transmitter and Receiver
not matched
Optical alignment not optimized
MASTER/SLAVE switch set to SLAVE in
standalone use
MASTER/SLAVE switches of the top and the
bottom units both set to MASTER in multi-level
installation
Synchronization wiring incorrect
Bird or flying debris blocking the beam between
Transmitter and Receiver
Vehicle or plant blocking the beam between
Transmitter and Receiver
Surface of Transmitter/Receiver cover soiled
Inaccurate optical alignment
Interruption time too short
Inappropriate location of installation
Inappropriate optical alignment for the upper
mirror
Switching not made with the covers (rubber
bushings for AX-350DH BT) of both Transmitter
and Receiver removed.
*If the problem persists after checking and taking the corrective action as above, contact the distributor or us.

-16-
99oz
(2800g)
34oz
(950g)
97oz
(2750g)
127mA max110m•Amax105mA max
< HU-2 (Option) >
Name
Model
Power Input
Current draw
Maximum unit temperature
Accessories
Heater unit
HU-2
24V AC/DC
430 mA (max) per sheet
+131°F (+60°C)
Rubber bushings (2), connectors (2), sealing material (1)
*The specifications may be modified without notice for improvement.
<Note>
This product is intended for detecting intruders and activating alarm and is not an antitheft device. Please be notified that we will
not be held responsible for any damage caused in the unlikely event of theft.
15. SPECIFICATIONS
<AX-350DH MK III, AX-650DH MK III, AX-350DH TS, AX-350DH BT >
Name
Model
Maximum detection
range
Maximum arrival
distance
Detection method
Interruption time
Power voltage
Current draw
(Transmitter + Receiver)
Alarm period
Alarm output
Tamper switch
Operating
temperature
Environment humidity
Alignment angle
Location of
installation
Mass
(Transmitter + Receiver)
Accessories
Optional parts
AX-350DH TS
AX-650DH MK III
AX-350DH MK III AX-350DH BT
35 - 350ft.
(10 - 100m)
3500ft.(1000m)
35 - 350ft.
(10 - 100m)
3500ft.(1000m)
35 - 350ft.
(10 - 100m)
3500ft.(1000m)
65 - 650ft.
(20 - 200m)
6500ft.(2000m)
U-shaped brackets (4), pole mounting screws (8),
wall mounting screws (8), wiring grommet (4)
Heater unit (HU-2), Back Cover(BC-1), Beam Tower
Mounting screws (8),
rubber bushings (2)
Beam Tower
± 90 degrees horizontal
± 20 degrees vertical
Indoor/outdoor; wall/pole mounting
±60 degrees horizontal
±45 degrees vertical
Beam Tower
95% max
-30°F - +131°F
(-35°C - +55°C)
N.C. ; open when cover is removed
2 ± 1 sec (Normal)
Form C Relay (28 VDC, 0.2 Amax)
Bottom Unit : N.C. (28 VDC, 0.2 Amax)
Infrared beam interruption detection
Variable between 35, 100, 250 and 500 msec (four steps)
10.5 - 30VDC
OPTEX CO., LTD.
(JAPAN)
(ISO 9001 Certified by LRQA)
(ISO 14001 Certified by JET)
5-8-12 Ogoto
Otsu,Shiga, 520-0101
Japan
Tel :[phone]
Fax:[phone]
URL http://www.optex.co.jp/e
NOTE
These units are designed to detect movement of an intruder and activate an alarm control panel.
Being only part of a complete alarm system,we cannot accept responsibility for any damages or other
consequences resulting from an intrusion.These products conform to the EMC Directive 89/336 EEC.
PHOTOELECTRIC DETECTOR
OPTEX (EUROPE) LTD.
(UK)
(ISO 9001 Certified by NQA)
Clivemont Road, Maidenhead,
Berkshire, SL6 7BU
UK
Tel:[phone]
Fax:[phone]
http://www.optexeurope.com•
OPTEX INCORPORATED
(USA)
1845W. 205th Street
Torrance, CA 90501-1510
U.S.A.
Tel: [phone]
Fax:[phone]
URL http://www.optexamerica.com
OPTEX SECURITY SAS
(FRANCE)
7 allée du Crêt,
ZA des Monts d’Or
69890 La Tour de Salvagny
France
Tel:[phone]
Fax:[phone]
http://www.optex-security.com
OPTEX KOREA., LTD.
(KOREA)
1001 Sambu Renaissance-Tower 456,
Kongduck-Dong, Mapo-Gu, Seoul
Korea
Tel:[phone]
Fax:[phone]
http://www.optexkorea.com