After the SREX-100 has been wired and powered the sensor can now be adjusted to the
installation requirements.
DETECTION RANGE
The detection distance is adjusted by the RNG, (range), potentiometer located at the
upper left hand side of the PCB. The range is 20 to 48 inches.
Turning the potentiometer clockwise increases the range, turning the potentiometer counterclockwise decreases the range.
RELAY ON TIME
The relay on time is adjusted by the TIME potentiometer which is the center potentiometer located at the upper left hand side of the PCB. The relay on time range is 1/2 to 60
seconds. The Time potentiometer is non-linear with the first 10 seconds covered by the
first half of the potentiometer and 11 to 60 seconds covered by the second half of the
potentiometer. Turning the potentiometer clockwise increases the relay on time, turning
the poteniometer counterclockwise decreases the relay on time.
BUZZER VOLUME
The buzzer volume is controlled by the VOL potentiometer located at the upper right
hand side of the PCB. Turning the potentiometer clockwise increases the buzzer volume, turning the potentiometer counterclockwise decreases the buzzer volume.
PAGE 4PAGE 3
CABLE COLOR CODE
ADJUSTMENT OF SENSOR FIELD
ADJUSTMENT OF SENSOR
DIP SWITCH SETTINGS
CABLE WIRE COLOR
FUNCTION
RED 12 OR 24 VAC/DC, AUTO SENSING
BLACK 12 OR 24 VAC/DC, AUTO SENSING
WHITE/BLACK STRIPE
COMMON CONTACT RELAY A
GREEN/BLACK STRIPE N/O CONTACT RELAY A
YELLOW/BLACK STRIPE N/C CONTACT RELAY A
WHITE COMMON CONTACT RELAY B
GREEN N/O CONTACT RELAY B
YELLOW N/C CONTACT RELAY B
BLUE CARD READER/KEYPAD INPUT
BLUE/WHITE STRIPE CARD READER/KEYPAD INPUT
ORANGE REQUEST TO EXIT N/O INPUT
ORANGE/WHITE STRIPE REQUEST TO EXIT N/O INPUT
BROWN N/C DOOR POSITION SWITCH
BROWN/WHITE STRIPE N/C DOOR POSITION SWITCH
NOTE: The SREX-100 contains a double pole-double throw relay and the two sets of
relay contacts are referred to as A and B.
The Card Reader/Keypad and the Door Position Switch are dry inputs.
The SREX-100 is factory pre-set at the five degree angle. If there is an obstruction in the
sensor field preventing a clear view of the door handle it will be necessary to change the
viewing angle. Un-plug the connector and slide the PCB from the housing with the clips
attached. Do not remove the clips from the PCB! Change the viewing angle to the zero
degree angle. It is recommended that the sensor be powered and both hand and walk
tested. If the sensor is detecting erratically, the IR beams may be reflecting off the door
handle and the viewing angle should be adjusted outward. Slide the PCB back into the
housing and leave the right end cap off until all final adjustments have been made.
ZERO DEGREES
FIVE DEGREES
TEN DEGREES
DO NOT
CHANGE
THIS SIDE
DO NOT
CHANGE
THIS SIDE
DO NOT
CHANGE
THIS SIDE
NOTCH
# 1
NOTCH
# 2
NOTCH
# 3
SWITCH 1 ON FAIL-SAFE MODE
SWITCH 1 OFF FAIL-SECURE MODE
When the SREX-100 is in constant dectection, more than 10 seconds, It will go into a
fail-safe or fail-secure mode depending upon the switch setting.
SWITCH 2 ON RELOCK MODE, DOOR POSITION
When a normally-closed door contact is installed the door will relock after the door is
opened and then closed.
SWITCH 2 OFF TIMER MODE
The door will relock after the preset relay on time.
SWITCH 3 ON DOOR POSITION RELOCK TIME IS A FIXED 10 SECONDS
SWITCH 3 OFF DOOR POSITION RELOCK TIME IS A FIXED 30 SECONDS
SWITCH 4 ON DOOR UNLOCK TIMER
If switch 2 is in the off position,(timer mode), then door will remain unlocked as long as
there is activity in the detection range. If there is no activity then the timer will restart and
relock the door after the preset time.
SWITCH 5 ON BUZZER ENABLED, THE BUZZER IS NOT INTENDED TO BE A
SWITCH 5 OFF BUZZER DISABLED
SWITCH 6 ON CARD READER OR KEYPAD INPUT IS ENABLED
SWITCH 6 OFF CARD READER OR KEYPAD INPUT IS DISABLED
SWITCH 7 ON BUZZER SOUNDS WHEN N/C CARD READER INPUT IS OPEN
SWITCH 7 OFF BUZZER DOES NOT SOUND WHEN N/C CARD READER INPUT IS
CLOSED
BURGLARY ALARM