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To prevent any loss or damage to our customers, other people and/or property, and 
to ensure the proper use of our products we ask that before using our product you 
carefully read, understand and follow the safety rules and precautions for our products 
as outlined below.

Explanation of Warning Symbols 

Explanation of Picture Symbols

 DANGER

These entries are actions that 
absolutely under no circumstance 
should be taken. The taking of 
such an action may cause serious 
personal physical damage or 
death. 

Denotes an important 
warning or caution.

Denotes a forbidden action.

 CAUTION

These entries are actions that if 
taken may lead to physical injury or 
damage to persons or things. 

Denotes an action that must 
be taken.

 DANGER

Do not take apart, repair or modify the Unit.

Touching them may result in malfunction or unexpected accidents.

If water or a foreign object enters into the Unit, immediately turn OFF the power, remove 
batteries, and stop using.

Continued use may cause fire or electrocution.

Do not use this Unit in wet or humid places, such as a bathroom.

It may cause a fire or other trouble including malfunction. 

If water or a foreign object enters the case, immediately cease using it.

Store the Unit and accessories out of the reach of children.

Touching them may result in unexpected accidents.

If any smoke or strange smells are emitted from the Unit, immediately turn OFF the power, 
remove batteries, and stop using.

Continued use may cause fire or electrocution.

Do not drop the Unit, or expose the Unit to a strong impact.

If that happens to the Unit, immediately turn OFF the power, remove batteries, and stop using. Continued use 
may cause fire or electrocution.

When installing and using this product, make sure to follow all warnings and directions from 
your computer manufacturer.

 CAUTION

This Unit is not waterproof.

If the Unit gets dirty, wipe it with a clean cloth.

Harmful gases or chemicals may cause corrosion and/or other danger to the Unit. Also, by 
coming in contact with hazardous substances, harm may occur to the people handling the 
Unit. Therefore, do not use or store the Unit in any environment that is exposed to chemicals 
and harmful gases.
Battery life varies depending upon the type of battery, the battery performance, the 
measuring environment, and the frequency of communication.
Battery terminals may provide insufficient contact due to age or vibration.

This may lead to data loss.

Use the Unit in an environment within the operational range.

Condensation may occur when a Unit is moved from one environment to another where 
there is a great difference in temperature.
To prevent damage to the Unit from static electricity, remove static electricity from your body 
by touching metal around you (door knob, window frame) before touching the Unit.

Static electricity may cause not only damage to the Unit, but may cause breaks in or a loss of data.

If the Unit is not to be used for a long period of time, for safety reasons please remove the 
battery.

If left in the Unit, it may leak and lead to malfunctioning.Please use a new battery when you use the Unit again.

Do not store or leave the Unit in any place exposed to high temperature and high humidity.

If the Unit is not to be used for a long period of time, store it in a place with a normal temperature and without 
condensation with other items included.

Do not disconnect the communication cable during USB communication.

This may harmfully effect the Unit or your PC.

We shall not guarantee the operation of our device if you have connected it to your computer 
using a USB hub or a USB extension cable.
Please do not insert your fingers or any foreign objects into the sensor or USB connection 
jacks.
Do not use or store the Unit in any of the following places. Doing so may cause electrocution, 
fire and/or other adverse effects to the device and/or your computer.
-Areas exposed to direct sunlight

  This will cause the inside of the Unit to become overheated and may cause fire, deformation, and/or 
  other damage including malfunction.

-Areas prone to strong magnetic fields

  This may cause damage including malfunction.

- Areas exposed to water leakage 

  This may cause electrocution or other damage including malfunction.

- Areas exposed to excessive vibration 

  This may cause injury, malfunction, damage or loss of proper electrical contact.

- Areas near fire or exposed to excessive heat 

  This may cause damage including malfunction and deformation.

-Areas prone to dust and dirt

  This may cause damage including malfunction.

Illuminance UV Recorder WL RTR-574 is a Data Logger, with built-in wireless communication capability, designed to 
measure and record Illuminance, Ultraviolet Light, Temperature and Humidity at a set interval.

Collect the Data not the Logger: Wireless communication with a Base Unit makes it possible to download data from a RTR-574 Data Logger 
(Remote Unit) without going to the location or collecting the Unit. The downloaded data can then be easily viewed in graph form and saved 
on your computer to help you analyze the data and/or share over a network.

  From hereafter in this manual, Illuminance UV Recorder WL RTR-574 will be referred to as the “Unit”.
  As a Remote Unit, the Unit requires a Base Unit to carry out wireless communication. 

    (Compatible Base Units: RTR-500, RTR-500AW/RTR-500NW)

  Please set it up after getting the Base Unit ready.

RTR-574 

User’s Manual

Thank you for purchasing our product.
Carefully read this instruction manual before using this Unit.

Package Contents

Illuminance UV Recorder WL

RTR-574

Illuminance UV Sensor 

(ISA-3151)

Temperature/Humidity 

Sensor 

(THA-3151)

USB Communication Cable  

(US-15C)

AA Alkaline Battery 

User's Manual 

(including Warranty)

© Copyright T&D Corporation. All rights reserved.                2010/05  160XXXXXXXX (1st Edition)
This is printed using recycled paper.

                               http://www.tandd.com/

817-1 Shimadachi, Matsumoto, Nagano, JAPAN  390-0852

Fax: +81-263-40-3152     E-mail: [email protected]

REC Mark

The recording status is shown here.
  ON: Recording in progress.
  BLINKING: Waiting for programmed start.
  OFF: Recording has been stopped.

DATA

After every 2,000 readings the scale will be marked from left to right.A Unit 
has the capacity to record and save up to 8,000 data readings.

COM Mark

The communication status is shown here.
  ON: The Unit is connected to a PC with the USB cable.
  BLINKING: The Unit is in Wireless/USB/Serial communication.

Recording Mode

ENDLESS:
Upon reaching capacity of 8,000 readings, the oldest data is overwritten 

and recording continues.

ONETIME:
Upon reaching capacity of 8,000 readings, recording will automatically 

stop.

Battery Life 
Warning Signal

When it is time for the battery to be replaced, this signal will appear.
  Not ON: Ample battery power.
  ON: Time to change the battery.

Current Readings /
Messages Area

Normally, the current readings are shown here. Depending on the Unit’s 
status, operational messages may also be displayed.

Unit of 
Measurement 

Humidity: % ,  Temperature: ˚C / ˚F,   Illuminance: lx, Klx
Cumulative Illuminance: lx

·

h, Klx

·

h, Mlx

·

h

UV Intensity : mW/cm

2

Cumulative Amount of Ultraviolet Light: mW/cm

2

·

h,  W/cm

2

·

h

Appearance Diagram and Part Names

 Antenna
 Sensor Jack
 POWER Button
 Operation Buttons

     (DISPLAY, INTERVAL, REC/STOP)

Notices about this User's Manual

In order to properly use this product, please carefully read this manual before using. T&D Corporation accepts no responsibility for any malfunction of and / or trouble with this 
product or with your computer that is caused by the improper handling of this product and will deem such trouble or malfunction as falling outside the conditions for free repair 
outlined in the attached warranty.

  -   All rights of this User's Manual belong to T&D Corporation. It is prohibited to use, duplicate and / or arrange a part or whole of this User's Manual without the permission of T&D Corporation.
  -   "TANDD",  "T&D" and the logo of T&D Corporation are all registered property of T&D Corporation.
  -   Specifications, design and other contents outlined in this manual are subject to change without notice.
  -   We are not responsible for any malfunction or trouble caused by the use of our product or by any problem caused by the use of measurement results of our unit. Please be fully aware of this before using our product.
  -   On screen messages in this manual may vary slightly from the actual messages.
  -   Please notify the shop where you purchased this product or T&D Corporation of any mistakes, errors or unclear explanations in this manual. 
  -   T&D Corporation accepts no responsibility for any damage or loss of income caused by the use of our product.
  -   This product has been designed for private or industrial use only. It is not for use in situations where strict safety precautions are necessary such as in connection with medical equipment, whether directly or indirectly.
  -   This User's Manual cannot be reissued, so please keep it in a safe place. 
  -   Please carefully read this User's Manual and Warranty.

Safety Precautions and Instructions 

* Please carefully observe the following safety measures when using our product.

18

55

78

60

[Unit : mm]

Cautions about using the Illuminance UV Sensors

Do not connect the ISA-3151 sensor to any data logger other than those specified by T&D 
Corporation.

Use the Unit in an environment within the operational range.

When measuring ultraviolet light or other light which may cause damage or injury to your eyes 
or skin make sure to use protection such as safety glasses or some type of light-proof shield.
Do not expose the sensor to a strong impact.

Cracks or scratches in the Illuminance sensor and / or in the UV sensor will adversely affect the measurement 
accuracy. Also, a broken sensor may result in injury.

This sensor is not waterproof. By all means do not allow it to get wet.

Do not use in any environment that is exposed to corrosive gas and organic solvents. Also, do 
not use in areas near fire or exposed to excessive heat.
When the Illuminance UV sensor is not being used, please store at room temperature to 
prevent condensation.
If the sensor surface gets dirty, wipe it with a soft cloth.

If the sensor surface accumulates impurities (dirt), it will cause a decrease in the sensor’s accuracy and 
sensitivity.

If you wish to extend the length of the sensor cable, please purchase and use our optional 
sensor extension cable (TR-1C30 / TR-5C10).

Do not cut or process the sensor cables.

Using the “Adjustment Function” in the software supplied with the Base Unit, it is possible to 
make desired adjustment settings to a sensor; these settings are saved directly into the 
sensor itself.Therefore, when a sensor is replaced, it is necessary to re-make any desired 
adjustment settings to be saved into the newly connected sensor.

Cautions about using the Temperature/Humidity Sensors

Do not connect the ISA-3151 sensor to any data logger other than those specified by T&D 
Corporation.

Use the Unit in an environment within the operational range.

When using the Unit in an environment where the humidity is less than 30%RH, the 
measurements may sometimes fluctuate. This is not abnormal.
If extremely severe temperature changes occur, the humidity measurements may appear 
abnormal.

Once the sensor's temperature becomes stable, the measurements will return to normal.

This sensor is not waterproof.

Only use in an environment where there is no condensation or possibility of becoming wet. Do not use in water 
or near areas where high-pressure water is flowing.

Do not use in any environment that is exposed to corrosive gas and organic solvents. Also, 
do not use in areas near fire or exposed to excessive heat.
When the temperature/humidity sensor is not being used for a long period of time, please 
place it in the attached vinyl bag with the drying agent included and store at room 
temperature to prevent condensation.
We recommend changing the temperature/humidity sensor after about one year of use.

During use, the surface of the temperature/humidity sensor will accumulate impurities (dirt) causing a decrease 
in the sensor’s accuracy and sensitivity.If the sensor is being used in an environment where smoke and dust 
are in abundance, we suggest replacing the sensor even sooner.

Do not use this sensor on a human body.

If you wish to extend the length of the sensor cable, please purchase and use our optional 
sensor extension cable (TR-1C30 / TR-5C10).

Do not cut or process the sensor cables.

Using the "Adjustment Function" in the software supplied with the Base Unit, it is possible to 
make desired adjustment settings to a sensor; these settings are saved directly into the 
sensor itself.Therefore, when a sensor is replaced, it is necessary to re-make any desired 
adjustment settings to be saved into the newly connected sensor.

 Wireless Regulations

Radio, EMC and Safety Regulations

This device complies with part 15 of the Federal Communications Commission (FCC) rules and 
with RSS-210 of the Industry Canada (IC). Operation is subject to the following 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 the manufacturer for compliance could void the user's authority 
to operate the equipment. 
Note: This equipment has been tested and found to comply with the limits for a Class B Digital Device, pursuant to 
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference 
in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not 
installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does 
cause harmful interference to radio or television reception, which can be determined by turning the equipment off 
and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.

 Important Notice

We cannot sell these products to distributors or consumers in countries other than where the wireless units have been 
approved for use. If these wireless products are used outside of the designated areas of the Americas where the devices 
have been granted approval, T&D Corporation shall in no manner whatsoever take responsibility for the usage of these 
products, nor be liable in any manner for legal consequences stemming from the usage of these wireless products in 
unapproved areas.

 USB Communication Cable Jack
 RS-232C (Serial) Communication 

Cable Jack

 Battery Cover

        Illuminance UV Recorder WL RTR-574 Warranty

Customer's name:

Address:

Phone No.:

Dealer's name:

Address:

Phone No.:

Guarantee period:  12 months from date of purchase

                  Date of purchase:    

Statement of Limited Warranty

1.    This product is warranted to be free from defects in materials and workmanship for a period of one (1) year 

following the date of purchase. Should the product fail to operate per specification in normal use during this period 
T&D will repair the Unit or provide a replacement free of charge. T&D will not accept returns for any reason other 
than defects during the warranty period, and will not accept any product that has been misused, dropped, abused 
or inappropriately used or mistreated at any time.

2.    This warranty is strictly limited to repair or replacement-in-kind for defective product. T&D makes no other warranty, 

either express or implied, and will not accept liability beyond the remedies stated herein. Specifically, T&D will not 
accept liability for direct, indirect, special, consequential or incidental damages arising from the use of this product.

3.   Customers wishing to submit a defective product for repair or replacement during the warranty period should 

first contact the dealer from whom it was originally purchased. After receiving a return authorization the defective 
product should then be packaged along with a description of the difficulties being experienced, proof of purchase 
and all included accessories and materials, and return it to the dealer. In the event of difficulty contacting the 
original dealer, customers should contact the nearest authorized T&D sales representative. A list of these can be 
found on the company's web site, www.tandd.com, or it can be obtained by contacting T&D directly.

4.    This limited warranty statement gives the customer specific legal rights. The customer may also have other rights 

which vary from state to state in the United States, from province to province in Canada, and from country to 
country elsewhere in the world. To the extent this limited warranty statement is inconsistent with local law, this 
statement shall be deemed modified to be consistent with such local law.

5.    For further information relating to product repair or replacement, or for other service questions after the termination 

of the warranty period, customers should contact their local authorized T&D sales representative.

Reading the LCD Display

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