Accumulated UV meter UIT-250

Accumulated UV Meter UIT-250
  • Measurement
  • MEMS, Electronic Components
  • Semiconductors
  • Liquid Crystal Display
  • Printed Circuit Board and PKG
  • Functional Materials
  • Automotive and Marine
  • Biology and Chemistry
  • Therapy, Cosmetics, and Pharmaceutical Development
  • Environment and Sanitation
  • Agriculture/Fisheries and Food
  • Energy
  • Video and Cinema
  • Printing
  • Optics
  • Security
  • Illumination

The Unimeter series was developed based on our experience and expertise as a manufacturer of optical equipment. These compact optical measuring instruments are genuinely easy-to-use from the user's standpoint. These compact UV meters are used to manage the intensity of a range of instruments, including irradiation systems, as well as UV curing, cleansing and sterilizing systems.
■ Troubleshooting is Here (requires member registration)

Extensive measurement wavelength lineup
Light receptor replacement allows illuminance and temperature measurement in five wavelength regions (centered on 172, 254, 313, 365 and 405 nm)
Various measurement modes
Measure illuminance, peak illuminance, cumulative quantity of light, illuminance distribution, spot illuminance and temperature distribution
Memory functions included
Internal memory stores up to four minutes of illuminance measurements
Auto power-off
Auto power-off enable/disable switch
Serial communication functions included
Serial communication functions with PC
Absolute value measurement available
Evaluation is possible with our proprietary calibration system
UV illuminance and temperature measurement


Accumulated UV Meter UIT-250
  -Handling Instructions
      -Trunk Case
      -AAA battery x3
      -Precision Driver
 *UIT-250A can use AAA battery or AC adapter AC100V/For Japan Use Only.  

Separate Type Photodetector (Option)

Integrated Type Photodetector (Option)

Discontinued Models


AC Adapter
Function switches between batteries and external power supply
*UIT-250A can use AAA battery or AC adapter AC100V/For Japan Use Only.
Extension Cables
Standard 2, 5, 10, 15 and 20 m
Extension Cables (flex specification)
Standard 2, 5, 10, 15 and 20 m
Heat Shield Cover
Protects the main unit from heat when measuring on UV conveyor
*The heat shield cover for the old UIT-150 model cannot be used.
*UIT-250A can not use this shield.
Models UVD-TK
Temperature Measurement Range (°C) 0 to 350
Thermocouple Line Chromel-Alumel Line (Type K)

Installed light source

Tell me about temperature conditions for use and use procedures.

Temperature conditions should be restricted to less than 10 seconds in a 300℃ environment. Use at higher temperatures will result in an "unit over temperature" error. In the worst case, damage to the equipment can result.

What is the calibration procedure, and how often is calibration needed?

Calibration once every six months is recommended in order to assure precision of measurement.

Is the equipment provided with a calibration results report, calibration certificate, and traceability system chart?

Provided as a standard feature when the product is purchased.