The IR-RST series is single-color radiation thermometers that are used as the standard unit for comparison calibration of radiation thermometers by using comparison blackbody furnaces.
2 kinds of measuring wavelength of 0.65µm and 0.90µm are available. With an official certificate (JCSS calibration certificate)
| Model | Measuring wavelength |
| IR-RST-65 | 0.65µm |
| IR-RST-90W | 0.90µm |
| Model | IR-RST-65 | IR-RST-90W |
| Measuring system | Narrow-wavelength band radiation thermometer | |
| Detector | Silicon cell | |
| Measuring wavelength | 0.65µm(Half value in width 18nm) | 0.90µm(Half value in width 75nm) |
| Measuring range | 900 to 1500°C | 400 to 2000°C (3-range switching) |
| Resolution | Within 0.1K(at 900°C) | 10mK(at fixed point temperature of aluminum) |
| Long term stability | Within ± 0.2K/year | |
| Distance factor | 400 | 120 |
| Calibration test | Calibration certificate with JCSS logo | |
| Response time | About 1 second(63% indication) | Less than 1 second(63% indication) |
| Measuring distance | 36cm | |
| Collimation | Direct viewfinder | |
| Operating temperature range | 25°C ± 5°C | |
| Output | About 0 to 10V (with zero adjusting knob) | |
| Inside temperature output | -- | 0.1V/°C |
| Power supply | 100VAC, 50/60Hz | |
| Allowable voltage fluctuation | ± 5% of rated value | ± 10% of rated value |
| Connection | Terminal connection | Connector connection |
| Case | Aluminum case, sealed construction | |
| Weight | About 2.8kg | About 3kg |
| Mounting | On tripod or universal head | |
| Performance Specification Sheet | Standard Radiation Thermometers | IR-RST | Download |
