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TERA Radon Program
TSR4M USB Radon Probe with Big Memory
Technical Specifications & Operation Manual
EN
v.1 – 2018
Table of Contents
1 Introduction .............................................................................................................................................................2
2 Description and Utilization ......................................................................................................................................3
3 Scope of Delivery .....................................................................................................................................................4
4 Product Specification ...............................................................................................................................................4
5 Operating Instructions .............................................................................................................................................5
6 Basic Maintenance ..................................................................................................................................................5
7 EC Declaration of Conformity ..................................................................................................................................6
8 Repairs .....................................................................................................................................................................6
9 Warranty..................................................................................................................................................................6
10 Accessories ..............................................................................................................................................................6
11 Alternatives .............................................................................................................................................................6
12 Revision History .......................................................................................................................................................6
Manual also available on www.tesla.cz
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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
1 Introduction
This document describes technical specifications and user operation of the TSR4M USB Radon Probe
with Big Memory.
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.
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2 Description and Utilization
TSR4M is designed for continuous measuring of radon concentrations in buildings.
Portable probe basis is a measuring chamber with a semiconductor photodetector. Radon enters the
chamber by diffusion through the input filter on the bottom of probe. The probe measures in autonomous
and time continuous way. It processes results every 4-minute intervals and from this counts short-term
moving average of radon concentration ( 1 hour moving average - average of 15 4-minute process
intervals). It also counts long-term moving average of radon concentration ( 24 hours moving average). The
probe saves time records of these radon concentration values including values of humidity and temperature
within its internal memory (typically at an interval of 1 hour). Next saved value is time record of measuring
energy spectrum (typically at an interval of 12 hours). The probe is random for location in measured place,
but generally it is put on the bottom of the probe. Bottom of the probe cannot be covered. The probe can
be switched on/off by switch. LEDs „STAT“ a „CHRG“ indicate current status of probe see ´Operation
manual´ below.
The resulting values can be downloaded continuously during measurement or at once at the end of
measurement. Data from the radon probe is downloaded to a PC directly via USB interface. Capacity of
internal memory is almost unlimited.
TSR4M Radon Probe can be operated by these ways:
A) Standalone probe - Thanks to its independent battery power, portable radon measuring probe
supports flexible placing options within monitored structures. Accumulator will last for more than
1 year after full charging. After switching on TSR4M immediately starts measuring and saving
results into internal memory. The resulting values are downloaded after end of the measurement
by B) way.
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B) Probe connected via USB – Using usbRADONview app and USB cable is possible to download
Product
TSR4M USB Radon Probe with Big Memory
Type symbol
042 127 213 000
Average measurement sensitivity
0,125 count/hour/Bq.m-3
(method RaA+RaC; 15°C ÷ 30°C; rel. hum. 20% ÷ 40%)
Measuring range
MDA – 10E6 Bq/m3;
MDA = 100 Bq/m3 per 1 hour or 20 Bq/m3 per 24 hours
Measurement uncertainty
< 18% at 300 Bq/m3 per 1 hour;
< 4% at 300 Bq/m3 per 24 hour
Measuring chamber capacity
0,176 dm3
Response rate
< 30 minutes (RaA); < 3 hours (RaA + RaC)
Radon records
calculated from RaA (quicker, less sensitive)
calculated form RaA + RaC (slower, more sensitive)
Measuring relative humidity range
10 – 90 %
Measuring temperature range
-20 to + 60 °C
Records saving interval
1- 255 minutes, default 1 hour
Results memory capacity
> 1000 years
Powering
internal rechargeble accumulator; charging via USB
Accu life after full charging
>1 year
Current radon concentration results
short-term (0,5 hour running average from RaA)
long-term (24 hours running average from RaA + RaC)
Dimension
Ø 80 x 175 mm
results to PC continuously during measurement or at once at the end of measurement.
usbRADONview application, drivers and user manual is free downloaded on website:
http://www.tesla.cz/en/ke-stazeni/.
3 Scope of Delivery
TSR4M USB Radon Probe with Big Memory
Power adapter 230VAC/5VDC
USB cable A-B
Probe holder
Operation Manual
4 Product Specification
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5 Operating Instructions
Color
Description
Green blink 3x
Radon probe has just been turned on.
Green blink after 5s
Radon probe measures and works correctly
Yellow blink 3x
Radon probe has just been turned off.
Green / Yellow
blink after 5s
Radon probe measures but troubles are occur. – especially low capacity of
accumulator. Warnings and errors are shown in PC application.
No light, No blinking
Radon probe doesn´t measure or accumulator is empty or device is damaged.
Charging process of accumulator is described in chapter „Basic Maintenance/
Accumulator charging“
Switching on and off:
The probe measures radon concentration autonomously only if the switch is in position „I“( switch on).
The switching on is signalized by LED diode „STAT“ according chart below.
If the switch is in position „0“ (switch off) the probe doesn´t measure radon concentration. In switching
off mode the probe only keeps running real time for correct date and time of records in case of switch it on
again. By switching off the probe doesn´t lose previous records of measurement. The switching on is
signalized by LED diode „STAT“ according chart below.
Download data from probe over USB is possible only if switch is in position „I“( switch on).
LED diode „STAT“:
It signalizes status radon probe according to following chart:
Power supply:
According to operation method the radon probe can be supplied:
1) By internal accumulator for portable use – Radon probe includes internal accumulator which is
able to ensure autonomous operation of probe for more than 12 months without charging.
Depends on climatic condition of probe use. Accumulator is charged with USB port and 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 – Radon probe is permanently supplied by
delivered power adapter. Power adapter is connected to probe via provided USB cable. In case of
blackout internal accumulator ensures UPS function.
Configuration:
Setting and configuration are realized by usbRADONview application. UsbRADONview application,
drivers and user manual with detail configuration description are free downloaded on website:
http://www.tesla.cz/en/ke-stazeni/.
6 Basic Maintenance
Accumulator charging:
During portable use of radon probe is essential to monitor state of internal accumulator and recharge it if
necessary. If accumulator is discharged the probe automatically turns off. The probe is switched on again
powering USB port.
Current state of accumulator can be determined in two ways:
1) By LED diode ´STAT´ - If LED starts blinking in green-yellow color it indicates that system is working
incorrectly and one of main case is low voltage of accumulator. (see paragraph “Operation Manual /
LED diode “STAT””).
2) In TERAview and usbRADONview 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 probe. LED diode ´CHRG´ next to
USB port of probe indicates charging status according to following chart:
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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.
Revision
Date
Comments
Rev.1:
31.1.2017
Initial release
LED diode ´CHRG´
Accumulator is fully charged when LED diode ´CHRG´ is green. You can disconnect USB cable.
7 EC Declaration of Conformity
EC Declaration of Conformity will be delivered by Tesla producer on request. If interested, please use
contacts on the web www.tesla.cz .
8 Repairs
Any repairs and non basic maintenance must be performed exclusively by TESLA manufacturer.
TESLA
Podebradska 56/186
180 66 Prague 9
www.tesla.cz
9 Warranty
- 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 product was
undergoing warranty repairs.
- After the end of its life, product must be handled as e-waste.
10 Accessories
Radon Probe accessories are available at producer www.tesla.cz or at distributor.
Probe holder (is included in package)
11 Alternatives
TSR4M probe is easy and quick to change in manufacturer to new type of these probes:
TSR4 – WLAN Wireless and USB Radon Probe
TSR4S - SIGFOX Wireless and USB Radon Probe
12 Revision History
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