What does reference calibration caution mean on Riken Keiki FI-8000 Measuring Instruments?
- CCatherine HawkinsSep 1, 2025
If the Riken Keiki Measuring Instruments displays '(CAUTION) CHECK REF. CAL', it suggests that zero drift may have occurred or condensation is present. Perform reference gas calibration using a specified reference gas. If condensation occurred inside the product (light source sensor), draw dry air to dry the sensor.