Tesla TRR3 User manual

Instruction also available on www.tesla.cz
EN
TERA Radon Program
TRR3 Wireless Repeater
Technical Specifications & Operation Manual
v.1 –2020
Table of Contents
1 Introduction............................................................................................................................................2
2 Description and Utilization .....................................................................................................................2
3 Scope of Delivery....................................................................................................................................4
4 Product Specification..............................................................................................................................4
5 Operating Instruction .............................................................................................................................4
6 Basic Maintenance .................................................................................................................................5
7 Repairs....................................................................................................................................................5
8 Warranty.................................................................................................................................................6
9 EC Declaration of Conformity .................................................................................................................6
10 Accessories .............................................................................................................................................6
11 Revision History......................................................................................................................................6

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COPYRIGHT NOTICE
No part of this document may be reproduced, republished, translated or digitalized in any form or by
any means, without prior written permission of TESLA.
Information contained in this manual relates exclusively to the TERA system component specified on the
title page. New versions and modifications may be developed without prior notice to current users. TESLA
has made every attempt to provide you with complete, error-free and accurate information in this manual.
TESLA is not liable for errors or omissions contained in this document, or for any damages however resulted
from using or relying on any information contained herein. TESLA's liability for errors shall be strictly limited
to correcting such errors and providing advisory services as described below.
Users should be familiar with operation basis of used product. If you experience any problems with your
product, please contact us at:
TESLA
Podebradska 56/186
180 66 Prague 9
www.tesla.cz
1Introduction
This document describes technical specifications and user operation of TRR3 Wireless Repeater.
Product was developed and manufactured in the Czech Republic. All rights reserved TESLA. Offer or
delivery of products or services related to the product does not include transfer of ownership rights.
Before using the product, please read this manual carefully and understand all operating and safety
precautions. Compliance with operational and safety precaution can prevent from damage to equipment or
injuries to personnel. Operating and safety instructions in the document are marked as follows:
Attention! This formatted text indicates the operating and safety instructions.
The product may only be used in the specified manner and for its intended purpose. The product may be
provided to third persons along with this documentation only.
2Description and Utilization
Repeater is an autonomous element designed to increase the system range. It provides connection
between the central unit and other elements of wireless net where signal is too weak for direct connection.
This may happen in an empty space at a long distance. The range in buildings is dependent particularly on
building material (walls, partitions, floors, etc.). For example, in case of reinforced concrete skeleton, which
represents efficient shielding, problem can occur even at very short distances. Repeater contains radio
module which only repeats (retransmits) received data in both directions. The device can be switched
ON/OFF by switch. LEDs „STAT“ a „CHRG“ indicate current status of device see ´Operation manual´below.
Internal accumulator ensures autonomous operation due for more than 1 year after full charging. For
permanent powering is possible to connect power adaptor 230VAC/5VDC.
Attention! For setting and controling of Repeater it is essential to have wireless Central Unit in system,
see http://www.tesla.cz/. Central Unit is not included with package of TRR3 and it is sold and delivered
extra.
Setting and configuration of TRR3 Wireless Repeater and whole system is also managed by connected
computer to Central Unit and TERAview application on PC.
TERAview application, drivers and user manual with detail configuration description is free downloaded
on website: http://www.tesla.cz/.
TRR3 Wireless Repeater can be used in these systems:
A) TERA System for Radon Concentration Measurement (Figure 1)
B) TERA System for Regulating Radon Concentrations (Figure 2)

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Figure 1 –TRR3 Wireless Repeater in TERA System for Radon Concentration Measurement
Figure 2 –TRR3 Wireless Repeater in TERA System for Regulating Radon Concentrations
Regulating system diagram description - Radon measuring probes located in building transmit their
current radon concentration values to central unit wirelessly. Central unit analyzes this information and on
the basis of measured (set) concentration level value it sends wireless command to actuator which is
hardwired with power relay. Power relay switches on a fan which decreases radon concentration within an
area. After decreasing of radon concentration, actuator receives a command to switch off the fan. This cycle
repeats depending on increasing or decreasing volume activity of radon in building.

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Repeater is random for location in measured property so that longer radio range is reached in wireless
net. In case of time continuous radon concentration measurement or in case of setting in regulation system
Repeater must be placed in optimal distance from Central Unit. Distance (radio range) between TRR3 and
central unit is up to 600 m in open space. In buildings it depends on number of walls, building material, etc.
Strength of radio signals (RSSI) is monitored by Central Unit.
3Scope of Delivery
•The TRR3 Wireless Repeater
•Power adapter 230VAC/5VDC
•USB cable A-B
•Antenna
•Operation Manual
4Product Specification
Product
The TRR3 Wireless Repeater
Type symbol
042 127 241 000
Radio interface
868MHz
Power supply
internal rechargeble accumulator
Accumulator life (one charging)
1-2 years
Dimensions
30x60x25 mm
TRR3 has distance (radio range) up to 600 m in open space. In buildings it depends on number of walls,
building material, etc.
5Operating Instruction
Switching on and off:
Repeater provides 2 switches ON and OFF. By short pressing of ON switch the device is switched on into
operation state of retransmition. By short pressing of OFF switch the device is switched off totally. Both of
state are indicate by LED diode „STAT“ according to chart below. Switching on and off of device is especially
designed for quick bond of other elements in wireless network.
LED diode „STAT“:
It signalizes status of device according to following chart:
Color
Description
Green blink after 4s
Repeater is in retransmition operation state
Yellow blink after 4s
Repeater is in retransmition operation state but accumulator is discharged
No light, No blinking
Repeater is switch off or accumulator is empty or device is damaged. Charging
process of accumulator is described in chapter „Basic Maintenance/ Accumulator
charging“
Antenna installation:
Supplied antenna is screwed on antenna connector. When installing antenna, hold antenna by knurled
end.
Wall mounting
The packaging of the device is intended for disassembly without loss of warranty for fixed mounting of the
device, for example on a wall. Remove the plastic caps on the top corners of the package and loosen the
screws. The top cover is easy to remove. At the bottom of the package, pre-prepared dimples are available
for drilling of mounting holes.

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Power supply:
According to operation method of device can be supplied:
1) By internal accumulator for portable use –Device includes internal accumulator which is able to
ensure autonomous operation of device for more than 12 months without charging. Depends on
frequency of wireless data retransmiting and depends on climatic condition of device use.
Accumulator is charged over USB port and over provided USB cable. The USB cable is possible to
connect to PC or to delivered power adapter. Status of accumulator and charging process are
described in paragraph ´Basic Maintenance/Accumulator charging´
2) By mains power supply 230V/50Hz for stationary use –Device is permanently supplied by delivered
power adapter 230VAC/5VDC. Power adapter is connected to device via provided USB cable. In
case of blackout the internal accumulator ensures UPS function.
Configuration:
Setting and configuration of Repeater and whole measuring system is realized by Central Unit connected
to PC and TERAview application. Central Unit is not included with package of TRR3 and it is sold and
delivered extra; see http://www.tesla.cz/.
TERAview application, drivers and user manual with detail configuration description is free downloaded
on website: http://www.tesla.cz/.
For successful repeater configuration in measuring system it is necessary to know repeater radio
channel number (communication wireless channel) and P2P address (identification in wireless net). Both
parameters are printed out on repeater serial number plate. Repeater radio channel number is possible to
change by TERAview application and it must be identical to central unit radio channel number. P2P address
is permanent and it occur in one big wireless net only once. Only P2P address of Central Unit can be
identical to P2P address of other elements in network.
6Basic Maintenance
Accumulator charging:
During portable use of device is essential to monitor state of internal accumulator and recharge it if
necessary. If accumulator is discharged the device automatically turns off.
Current state of accumulator can be determined by these ways:
1) By LED diode ´STAT´ - If LED starts blinking in yellow color it indicates low voltage of accumulator.
(see paragraph “Operation Manual / LED diode “STAT””)
2) In TERAview application - where you can check current accumulator voltage. Voltage should not
fall below 3.5 V, in limit conditions falls below 3.3V.
Accumulator is charged via USB port using supplied USB cable. USB cable can be connected to PC or to
supplied power adapter. Connect USB cable with power to USB port of device. LED diode ´CHRG´ next to
USB port of device indicates charging status according to following chart:
LED diode ´CHRG´
Color
Description
Green
Accumulator is fully charged
Yellow
Accumulator is being charged
Green - Yellow alternate blinking
Accumulator is damaged, contact Service Center
No light, No blinking
It is not connected to an external power supply or device is damaged.
Accumulator is fully charged when LED diode ´CHRG´ is green. You can disconnect USB cable.
7Repairs
Any repairs and non basic maintenance must be performed exclusively by Tesla manufacturer.
TESLA
Podebradska 56/186
180 66 Prague 9
www.tesla.cz

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8Warranty
This product is covered by warranty of 24 months from purchase date.
In case of warranty claim, please contact our Service Department.
Warranty covers any defects in materials or workmanship and excludes any damage resulting from or
caused by transport or handling or by any misuse.
Warranty ceases if product has been used improperly or its seal is broken.
In case of warranty claim, warranty period is prolonged by number of days the product was undergoing
warranty repairs.
After the end of its life, product must be handled as e-waste.
9EC Declaration of Conformity
EC Declaration of Conformity will be delivered by Tesla producer on request. If interested, please use
contacts on web sites www.tesla.cz.
10 Accessories
TRR3 Wireless Repeater accessories is available at producer www.tesla.cz or distributor.
Reserve antenna
11 Revision History
Revision
Date
Comments
Rev.1:
30. 9. 2020
Initial release