Temperature, Humidity, UV Light Data logger (USB) 　

Model: TR-74Ui

Instroduction:

The "TR-74Ui Illuminance UV Recorder" is a USB-dedicated data logger which can simultaneously
measure and record four items: Illuminance, Ultraviolet Light (UV), Temperature and Humidity. In
addition to these, the TR-74Ui is also capable of displaying Cumulative Illuminance and Cumulative
Amount of Ultraviolet Light in the LCD display. From dim moonlight to the summer sun, Illuminance
can be measured within a wide range.

The product is an all-in-one package that includes the data logger unit, sensor and software. Simply
by connecting to a PC via a USB connection and carrying out a few easy steps, the measurement and
recording of data can be started.page topApplication Examples* In art museums and other exhibit
forums to manage illuminosity and help prevent deterioration of exhibits
* Management during all aspects of plant and food production
* For use in the development, testing, manufacture and sales of products for cutting UV rays
* UV reduction management in schools from kindergartens to universities
* For home and office use in the management or illuminosity and UV rays
* Design and management of homes and architectural buildings
* For managing the reduction of UV rays at swimming pools, the ocean, mountains and in parks
* For management and adjustment of illuminosity for photography and film
* For management in the production, storage and sales of foodstuffs and beverages
* For use at supermarkets, convenience stores and drugstores in UV product sales promotion
materials



Measure and Record Illuminance, Ultraviolet Light (UV), Temperature and Humidity View Cumulative
Illuminance and Cumulative Amount of Ultraviolet Light in LCD Display Measure Illuminance within
Wide RangeView and record Illuminance in Resolutions to 0.01 lx Simultaneously View Four
Measurement in One Easy-to-Read GraphLarge Data Capacity: 8,000 Readings x 4 Channels
Transmit Recorded Data to PC via USB Connection Measure and Record Illuminance, Ultraviolet Light
(UV), Temperature and Humidity TR-74Ui Illuminance UV Recorder is a data logger designed to
simultaneously measure and record four items: Illuminance, Ultraviolet Light (UV), Temperature and
Humidity. This versatile data logger can be applied in a wide range of applications, from business to
personal use. page topView Cumulative Illuminance and Cumulative Amount of Ultraviolet Light in LCD
Display In addition to Illuminance, Ultraviolet Light (UV), Temperature and Humidity, the TR-74Ui is
also capable of displaying Cumulative Illuminance and Cumulative Amount of Ultraviolet Light in the
LCD display.

Cumulative Illuminance Display Range: 0 to 90,000,000 lx·h
Cumulative Amount of Ultraviolet Light Display Range: 0 to 62W/cm2·h page topMeasure Illuminance
within Wide RangeFrom dim moonlight to the summer sun, Illuminance can be measured within a wide
range.

Illuminance Measurement Range: 0 to 130,000 lx page topView and record Illuminance in Resolutions
to 0.01 lx High resolutions of up to 0.01 lx make it possible to measure even under less light
conditions. page topSimultaneously View Four Measurement in One Easy-to-Read GraphThe
recorded data downloaded from TR-74Ui Units is read by the Multi-scale Graph and the data of four
items, Illuminance, Ultraviolet Light (UV), Temperature and Humidity, can be simultaneously viewed in
graph or tabular form as well as printed or output.page topLarge Data Capacity: 8,000 Readings x 4
Channels The TR-74Ui Illuminance UV Recorder has four channels and can record the measurement
of Illuminance, Ultraviolet Light, Temperature and Humidity. Each channel can record and store up to
8,000 readings.

At the longest recording interval of 60 minutes, a Unit can record one year's worth of measurements. *
The battery life for a TR-74Ui Unit is about 6 months. In order to record measurements consecutively
for 1 year, the battery should be periodically changed.
Battery life varies depending upon the type of battery, the battery performance, the measuring
environment, and the frequency of communication.page topTransmit Recorded Data to PC via USB
Connection It is possible to connect a TR-74Ui Unit directly to your computer with a USB cable.

If the computer has more than one USB port, it is possible to connect multiple TR-74Ui Units to one
computer at the same time.
Connecting more than one TR-74Ui Unit at a time can only be done if using Windows 7 and Windows
Vista.




Moreover, it is possible to gather current readings from the TR-74Ui connected to your computer and
view those readings in the computer display.





Specifications
TR-74Ui UnitMeasurement Items Illuminance UV Intensity Temperature Humidity
Number of
Channels 1 channel for each Measurement Item
Unit of
Measurement lx, KLx mW/cm2 °C / °F %
Display Range of
Cumulative
Measurement 0 to 90,000,000 lx·h 0 to 62 W/cm2·h - -
Unit of
Cumulative
Measurement Cumulative
Illuminance
lx·h, Klx·h, MLx·h Cumulative Amount
of Ultraviolet Light
mW/cm2·h, W/cm2·h - -
LCD Refresh
Interval 1 second (At a recording Interval of 1 second)
2 seconds (At a recording interval of 2 seconds or more)
Recording Intervals Select from 15 choices: 1, 2, 5, 10, 15, 20 and 30 seconds / 1, 2, 5, 10, 15, 20,
30 and 60 minutes
Recording Capacity 8,000 readings for each measurement item
Recording Modes Endless Mode (Overwrite oldest data when capacity is full)
One Time Mode (Stop recording when capacity is full)
LCD Displayed
Items(*1) Recording Status, Amount of Recorded Data, Communication Status, Recording Mode,
Battery Life Warning, Current Readings (Illuminance / UV Intensity / Temperature / Humidity),
Cumulative Measurements (Cumulative Illuminance and Cumulative Amount of Ultraviolet Light), Unit
of Measurement  
Communication
Interface USB Communication
USB Communication
Time When downloading 1 Unit of full data: about 45 seconds
Power AA alkaline battery LR6 x 1
Battery Life(*2) About 6 months
Dimensions /
Weight of Main Unit H55 x W78 x D18 mm (excluding protrusions) / about 62 g (including battery)
Operating Environment Temperature: -10 to 60°C / Humidity: 90%RH or less (no condensation)  

Sensor  ISA-3151 THA-3151
Measurement Items Illuminance UV Intensity Temperature Humidity
Measurement Range 0 to 130,000 lx 0 to 30 mW/cm2 0 to 55°C 10 to 95%RH
Measurement Resolution Minimum: 0.01 lx Minimum: 0.001 mW/cm2 0.1°C 1%RH
Measuring Accuracy 10 to 100,000 lx:
±5%
(at 25°C and 50%RH)  0.1 to 30 mW/cm2
±5%(*3)
(at 25°C and 50%RH) Avg. ±0.3°C ±5%
(at 25°C and 50%RH)
Relative Spectral
Response  (*4) 260 to 400 nm - -
Cosine Correction
(cosΘ) (*5) - - -
Sensor Response
Time - - About 7 min. (90%)
Humidity Hysteresis - - - ±1%RH (30 to 90%RH)
Operating
Environment Temperature: -10 to 60°C
Humidity: 90% RH or less
(no condensation) Temperature: 0 to 55°C
Humidity: 90% RH or less
(no condensation)
Conditions for Use Do not expose to condensation, dampness, corrosive gases or organic solvents  
Sensor Dimensions H23 x W65 x D12.6 mm H18 x W51.5 x D10 mm
Cable Length 1.5 m

*1) Up to four digits are valid for the Current Readings and Cumulative Measurements.
*2) Battery life varies depending upon the type of battery, the measuring environment, the
frequency of communication, and the ambient temperature in which it is used.
*3) Compared to the value measured by the T&D standard sensor for calibration under our
calibration light source.
*4) Approximated to the CIE standard response function V (λ).
*5) Within ±1.5% at 10°; Within ±3% at 30°; Within ±10% at 60°; Within ±30% at 80° page
topDimensionsTR-74Ui1: Sensor Jack
2: POWER Button
3: LCD Display
4: DISPLAY Button
5: INTERVAL Button
6: REC/STOP Button
7: USB Communication Cable Jack
8: Temperature/Humidity Sensor Area
9: Sensor Case
10: Sensor Connector
11: Illuminance Light Receiving Area (Materials: Polycarbonate)
12: Ultraviolet Light Receiving Area (Materials: Glass)
13: Sensor Connector




Order Information:


TR-74Ui Temperature / Humidity/Light/UV light Data Logger (USB)