Scientech Electronics ASN User Manual

TX-3AS Analog/Temperature Two-in-One Sensor

INTRODUCTION

The TX-3AS is a battery operated wireless Analog/Temperature sensor specially
designed for the LS-30 Security System. Any Analog external sensor with 0-20mA
(or 0-2V*) output can be connected to the terminals and TX-3AS will translate it
into 0-200 readings and transmit the result to the Base Unit by RF signal.
With built-in temperature sensor and wireless operation, the sensor can be put
anywhere to monitor/record the data from an Analog external sensor and the
temperature in a room, a chamber or even a freezer and the reading will be remotely
shown/store in the Base Unit.
(* 0-2V actually is 0-1.952V, please refer to the Specifications.)

Hole to reach TEST
button inside

Transmission

LED

Test
Button

JP3

20mA/2V Selector

Input

Terminals

LED

To
Analog
External

Test

Button

LED

Wiring Inlet

GND Sen 3V
I/P O/P (optional)

INSTALLATION

A. Enrolling Code

1. Loosen the screw of the TX-3AS, open the upper case and connect the Analog
external sensor output to the terminals (make sure the output of the Analog
external sensor is in the operation range of 0-20mA or 0-2V, if the output is
over this range please see the Appendix to adjust the output level before
connecting to the terminals).
Insert two AAA alkaline batteries then put back the cover..

Important Notice: The sensor will issue battery low signal to the Base Unit if the

battery voltages are too low for normal operation. In order to reset the
microprocessor properly, please press TEST button for 5 seconds after
removing the old batteries to discharge the energy that remains in the
capacitors of TX-3AS then insert new batteries. Otherwise, it may not restart
after changing batteries

2. Select “Installer Mode” on the Base Unit and enroll both sensors to the zone

numbers according to your system configuration.

(This Enrollment also can be done through the HyperSecureLink software from PC)

Enter Installer Password to gain access authority then select \Set Device\Enroll
Device\Special Sensor\Enter Zone No. to enroll the ID of the TX-3AS by
pressing its TEST button.
If the Base Unit receives correct RF code from TX-3AS, the Base Unit will
issue “Ding Dong” and show “Enroll OK!” on the LCD display.

Now the Base Unit has learnt one type of the two sensors (Temperature or
Analog external sensor), next step is to enroll another type sensor.

Each time when you press the TEST button on the sensor it will send the
current temperature (one flash) or Analog reading from external sensor
(two flashes) alternatively.

3. Press YES , enter the Zone number and press the TEST button on the sensor
again to enroll another type sensor.

Note: If LCD shows “Duplicate” it means the received signal type of the
reading (Temperature or Analog external Sensor) is the same as the last
reading. You have to go to step 2 to enroll another type sensor again.

4. After the Device Enroll is completed, you can go to ”Device Check” to check
the sensors.

Select “Master Mode” on the Base Unit and press YES for “System Check?

Or Hot Key” then select “Device Check”

(There should be two new sensors in the device list, one is Temperature
sensor and the other one is Analog sensor.)

5. You may change its various attributes under \Set Device\Change Device

Setting\Special Sensor to fulfill different requirements.

The sensor can be set as an Alarm Device or a Control Device. (Refer to the
blocks below)