GEO Calibration 4000 Humidity Generator and Calibrator

The GEO Calibration 4000 humidity generator and calibrator is a 38-liter, highly accurate, automatic relative humidity calibrator. This model generates and maintains a controlled humidity and temperature environment to provide fully automatic calibrations with 5-10 minute response times. The 4000 features three auto-switching desiccant ports, an internal rack for mass data logger calibration, and automatic ramp/soak.

The Model 4000 desiccant system is comprised of three chambers designed to contain GEO desiccant canisters. With this feature, the 4000 Model provides a unique design that gives technicians the freedom to walk away from the humidity generator without worrying that the desiccant will run out and interrupt their calibration routine. The desiccant cells also operate on their own isolated valves, allowing the canisters to be “hot-swapped” without interrupting any running calibration routines.

Applications
High-volume probe calibration operations

High-accuracy mass data logger calibration

Features

• 5 to 55°C temperature range
• 5 to 95% RH humidity range at 23°C
• ±0.1°C temperature accuracy
• ±1.0% relative humidity accuracy at 23°C
• PID Controller
• 0.10°C temperature uniformity
• 0.30% RH uniformity at 23°C
• 0.05°C temperature stability
• 0.15% RH stability at 23°C
• Ramp/soak rate of change:
  • Temperature high to low, 0.50°C per minute
  • Temperature low to high, 1.00°C per minute
  • Humidity high to low, 1.00% RH per minute
  • Humidity low to high, 5.00% RH per minute