Kantech T. Rex Request to Exit Detector Installation Instructions

The Kantech T. Rex Request to Exit Detector is a device designed to detect individuals approaching a door, allowing them to exit without triggering an alarm. It features a passive infrared detector with digital signal processing for reliable detection. The T. Rex can be configured with a variety of options, such as latch or follow relay modes, sensitivity levels, and main relay timer settings.

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Exit Detector
Installation Instructions
Installation
Refer to the illustration below for the recommended mounting positions. When selecting an appropriate mounting position, keep in mind the potential for air drafts or objects to
be passed through gaps around the door and into the detection area.
The cable entry opening into the T.REX is on the right back
side, near the cover retaining screw. There is a recess in the
back of the T.REX to allow wires to be routed from any point
behind the T.REX to the cable entry opening.
First, remove the cover, then remove the detector barrel from
the back casing by rotating the barrel upward. Route the
wiring into the back casing.
Next, mount the back casing to the wall. Install the detector
barrel into the back casing and connect the wiring. This is a
good time to modify the jumper settings if necessary; the
jumper settings are explained on next page. Make sure that
the barrel is free to rotate, to permit final adjustment. Replace the cover, left end first (the end with 2 hooks).
Jumper Settings
There are a total of 7 jumpers on the left side of the circuit
board. By default, all jumpers are ON.
LED Jumper
This jumper selects whether or not the LED changes colour
when the main relay is activated. By default, the LED is
enabled to follow the relay activation.
Technical Specifications
Detector type
Passive infrared
Filter technology
Digital Signal Processing (DSP)
Detector lens
Curtain type Fresnel lens
Detection range
One hand:
3m (10 ft.)
Whole body: 6m (20 ft.)
Pow er consumption
12-28 VDC, 50mA
Piez o buz z er
90 dB at 28 VDC, 5-28 VDC, 20 mA
(XL &amp; XL2 only)
Main relay contacts
SPDT, 1A max. @ 30VDC max.
Main relay timer
Adjustable, 1/2 to 60 seconds
Main relay recycle time
Fixed, 3/4 second off
Lock control relay
Available on LT2 and XL2 models only,
Solid state relay, N.C., 2A max. @
30VDC, Timed at 2 seconds fixed
Tamper sw itch
N.C., 100 mA max. @ 30VDC max.
Dimensions (H.W.D) cm 19 x 4.5 x 4.75
Dimensions (H.W.D) in. 7-1/8 x 1-3/4 x 1-7/8
Indicator light
Red / Green LED
Certifications
UL294, CE, FCC
Latch Jumper
This jumper determines the relay operation: in &quot;Latch&quot; mode
(default), the relay activates for the duration of the main
relay timer setting whenever someone is detected.
In &quot;follow&quot; mode (jumper removed), the relay stays on only
as long as there is activity in the detection zone, but up to
a maximum time equal to the main relay timer setting.
Fast Jumper
This jumper selects between normal and high sensitivity.
When set to high sensitivity (default), the LED is normally
red, and turns green when the main relay is activated. This
mode is recommended for exit detector use.
When normal sensitivity is selected, the LED is normally
green, and turns red when the relay is activated. (Selecting
normal sensitivity allows the T.REX to be used in unsteady
environments).
Main Relay Timer Jumpers
The duration of the relay ON time
Main Relay timer Settings
Time
Jumper
(Latch mode) or the maximum
(seconds)
main relay ON time (Follow
mode), is set by these jumpers,
found on the lower left side of
the circuit board. 16 different
times can be selected according to the main relay timer setting table, ranging from 1/2 second to 60 seconds. The default
setting is 2 seconds. In both
latch and follow modes, when
the main relay turns off again, it
will stay off for 3/4 second. This
is to ensure that the access
control panel does not miss brief
Jumper ON
changes of state.
Top three (3) jumpers
Jumper
Jumper &quot;ON&quot;
(Factory default)
Jumper &quot;OFF&quot;
LE D
LED follows relay
LED stays &quot;ON&quot;
F ast
High sensitivity,
LED normally red,
LED green on detection
Normal sensitivity,
LED normally green
LED red on detection
Latch
Relay stays &quot;ON&quot; for
timer settings
Relay follows detection,
up to maximum of timer
settings
This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by Kantech could void the user’s authority to use this equipment.
Lock Control Relay (LT2 and XL2 only)
The lock control relay is a normally closed solid state relay
which deactivates (open contact) for a fixed time of 2 seconds, 50 ms after a detection. This time period cannot be
modified.
Power-up Test
The LED will flash twice quickly every second while the
T.REX goes through its power-up diagnostic sequence
(about 40 seconds) after which the T.REX is ready to operate normally. If trouble is detected at any time, the LED will
begin to flash rapidly 4 times per second. If the T.REX is
upset by a strong power fluctuation, it will resume normal
operation after a 10 second self-test.
Detection Pattern Adjustment
Once the T.REX is installed
and the cover replaced, the
span and target direction of
the detection pattern is set by
gently turning the louver direction screws, located just below the detector lens on the
barrel. As the adjustment
range is about 45&deg;, you must
be careful not to turn the
louvers too far; stop turning
when resistance is felt. The
slots on the louver adjusting
screws indicate the position
of the louver and serve as an
adjustment guide. To adjust
the detection zone toward or away from the door, simply
rotate the detector barrel as required.
When the T.REX is mounted directly above the door, it is
recommended to direct the detection area away from the
door. Rotate the barrel slightly away from the door, such
that the lower edge of the detector lens is about 1/4&quot; above
the edge of the case. Check that the detection pattern is
adequate by walk testing. Watch the LED for position detection. When you are satisfied with the detection pattern,
remove the cover and tighten the barrel locking screw on
the right side of the barrel, and replace the cover.
WARNING This detector provides fast detection and has not been designed to be used in intrusion
detection applications. This detector is designed to detect an individual approaching a door. Normally,
upon receiving the detector information, the system supervising the door will bypass the door condition
for a certain time to permit the exit without causing a &quot;door forced open&quot; alarm. This detector is designed
to be used on free exit doors. It has not been designed to unlock doors equipped with door strikes. Locking
and associated devices are generally governed by regulatory bodies and should always be installed
according to local regulations. In most instances there are strict limitations to installing this type of device
on doors used to exit. Be sure to check with local authorities for regulations before using any such devices.
Part No.
Description
T.REX-LT
Tamper and timer
T.REX-XL
Tamper, piezo, and timer
T.REX-LT2
Tamper, timer, and 2 relays
T.REX-XL2
Tamper, piezo, timer, and 2 relays
&copy;1999-2000 Kantech Systems Inc.
3650-A Matte Boulevard, Brossard (Quebec) Canada J4Y 2Z2
Tel: 1(450) 444-2040 • Free: 1-888-KANTECH • Fax: 1(450) 444-2029 • Web: www.kantech.com
DN1319-0006
Made in Canada
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Key features

Passive infrared detection
Digital Signal Processing (DSP)
Curtain type Fresnel lens
Latch or Follow relay operation
Adjustable sensitivity
Adjustable main relay timer
Tamper switch
Piezo buzzer (XL & XL2 models)

Frequently asked questions

The T. Rex uses passive infrared technology to detect movement in its detection zone. When someone approaches the door, the detector activates the relay, allowing the door to open without triggering an alarm.

The T. Rex offers two relay modes: Latch and Follow. In Latch mode, the relay stays on for the duration of the timer setting whenever someone is detected. In Follow mode, the relay stays on only as long as there is activity in the detection zone, up to the maximum timer setting.

Yes, the T. Rex can be adjusted for normal or high sensitivity. High sensitivity is recommended for exit detector use, while normal sensitivity is suitable for unsteady environments.

The tamper switch is designed to detect any attempt to physically tamper with the detector. If the tamper switch is activated, an alarm will be triggered.