TR-74Ui USB Connected Illuminance & UV Recorder

TR-74Ui and TR-74Ui-H

Illuminance UV Recorders

The TR-74Ui and TR-74Ui-H are data loggers which simultaneously measure and record four items: Luminescence, Ultraviolet Light (UV), Temperature and Humidity plus Cumulative Luminescence and Cumulative Ultraviolet Light in the LCD display.

The product is an all-in-one package that includes the data logger unit, sensors and software. Choose from packages with different temperature/humidity sensors depending on your required measurement range and accuracy needs.

Data can also be collected from data loggers via infrared communication to our TR-57DCi (optional, sold separately). 

Application Examples

• Art museums to help prevent deterioration of exhibits
• Plant and food production
• Development, testing, manufacture and sales of products for cutting UV rays
• UV reduction management in schools from kindergartens to universities
• Management and adjustment of luminosity for photography and film
• Management in the production, storage and sales of foodstuffs and beverages
• Supermarkets, convenience stores and drugstores in UV product sales promotion materials

 Specifications

Product	TR-74Ui		TR-74Ui-H
Temperature/Humidity Sensor (External)	THA-3151		HHA-3151(High-Precision Type)
	Thermistor	Polymer Resistance	Platinum Resistance	Electrostatic Capacitance
Measurement Channels	Temperature	Humidity 1ch	Temperature	Humidity 1ch
Units of Measurement	°C, °F	%RH	°C, °F	%RH
Measurement Range	0 to 55 °C	10 to 95 %RH	-30 to 80 °C	0 to 99 %RH
Accuracy	±0.5 °C	±5 %RH (at 25 °C, 50 %RH)	±0.3 °C (at 10 to 40 °C) ±0.5 °C (at all other temperatures)	±2.5 %RH(at 25 °C, 10 to 85 %RH) ±4.0 %RH(at 25 °C, 0 to 10 % or 85 to 99 %RH) At temperatures other than 25 °C and  0 °C, add ±0.1 %RH per degree of difference from 25. Humidity Hysteresis: ±1.5 %RH or lower(*1)
Measurement Resolution	0.1 °C	1 %RH	0.1 °C	0.1 %RH
Response Time (90%)	Approx. 7 min.		Approx. 7 min.	Approx. 20 sec.
Illuminance/UV Sensor (External)	ISA-3151
Measurement Channels	Illuminance: 1ch UV intensity: 1ch
Units of Measurement	Illuminance: lx, Klx UV intensity: mW/cm2
Measurement Range	Illuminance: 0 lx to 130 Klx UV Intensity: 0 to 30 mW/cm2
Units of Cumulative Measurement	Cumulative Illuminance: lxh, Klxh, Mlxh Cumulative amount of UV Light: mW/cm2, W/cm2
Display Range of Cumulative Measurement	Illuminance: 0 lxh to 90 Mlxh UV Intensity: 0 mW to 62 W/cm2h
Accuracy	Illuminance: 10 lx to 100 Klx"¢__ ±5 % (at 25 °C, 50 %RH) UV Intensity: 0.1 to 30 mW/cm2"¢__ ±5 % (at 25 °C, 50 %RH) (*2)
Relative Spectral Response	Illuminance: Approximated to the CIE standard response function V (ÌÇÌö ) UV Intensity: 260 to 400 nm
Measurement Resolution	Illuminance: Minimum of 0.01 lx UV Intensity: Minimum of 0.001 mW/cm2
Response Time (90%)	3 sec. (at recording interval of 1 sec.) 6 sec. (at other intervals)
Logging Capacity	8,000 data sets (One data set consists of readings for all channels in that type of unit.)
Recording Interval	Select from 15 choices: 1, 2, 5, 10, 15, 20, 30 sec. or 1, 2, 5, 10, 15, 20, 30, 60 min.
Recording Mode (*3)	Endless (Overwrite oldest data when capacity is full) or One Time (Stop recording when capacity is full)
LCD Display Items	Measurements, Battery Life Warning, etc. - Measurements: Illuminance / UV Intensity / Temperature / Humidity / Cumulative Illuminance / Cumulative amount of UV Light - Display Pattern: Alternating or Fixed display - Display Digits: Up to 4 digits
Communication Interfaces	USB Communication, Serial Communication (RS-232C) (*4), Infrared Communication (IrPHY 1.2 low power)
Communication Time	Downloading time for one unit at full capacity - Via USB communication: approx. 45 sec. - Via infrared communication: approx. 60 to 80 sec.
Power	AA Alkaline Battery x 1
Battery Life (*5)	Approx. 6 months
Weight	About 62 g (including battery, excluding sensor)
Environment	Temperature: -10 to 60 °C Humidity: 90 %RH or less (no condensation)
Accessories	AA alkaline battery, USB Cable, Illuminance/UV Sensor (ISA-3151), Temperature/Humidity Sensor (THA-3151 or HHA-3151), Software (CD-ROM), User's Manual Set (Warranty Included)
*1) When used in environments where temperature and humidity are over the values of 50 °C 75%, 60 °C 50%, 70 °C 35%, and 80 °C 25%, sensor hysteresis may fluctuate by values greater than ±1.5%RH. Under certain circumstances, it may take some time to return to normal measurement capability. *2) Compared to the value measured by the T&D standard sensor for calibration under our calibration light source. *3) Only "Endless" is available when using RTR-500W for Windows. *4) If necessary, serial communication can be established by using our communication protocol (contact your local distributor) to write a software program. In such a case, an optional serial communication cable (TR-07C) is needed. *5) Battery life varies depending upon the ambient temperature in which it is used, the recording interval, the frequency of communication, and the battery performance.