Humidity calibrator
10 - 50 °C, 5 - 25 mm | OptiCal MICHELL INSTRUMENTS

The OptiCal is a bench-top, fully self-contained humidity/temperature calibrator. The system comprises a humidity and temperature controlled chamber that can house up to five or more humidity sensors, depending on their physical dimensions. The humidity and temperature within the chamber are closed-loop controlled and continuously monitored by a precision chilled mirror reference hygrometer. The Opti-Cal works by time proportioning theflows of dry and saturated air according to the pre-selected relative humidity value. The chamber temperature is controlled by a four-zone Peltier heat pump arrangement for maximum stability and minimum temperature gradient. The saturator assembly can be filled easily with distilled water reservoir at the front of the unit and the easily accessible desiccator can be re-charged by heating when required. No other maintenance is necessary. The only external service required is a single phase power supply.

Highlights:
Precision relative humidity and temperature calibrator
Generate 10 to 90% RH over 10 to 50°C temperature
Integral cooled mirror reference hygrometer
Humidity and temperature profile generation for unattended verification of sensors
Transportable calibrator enables on-site calibrations

Applications:
The verification and calibration of relative humidity sensors
Pharmaceutical
Metrology
Meteorological