The GEO Calibration 4000 humidity generator and calibrator is a 38-liter automatic relative humidity calibrator designed for high-volume and high-accuracy calibration applications. This system generates and maintains controlled humidity and temperature environments for fully automatic calibrations with 5 to 10 minute response times, enabling efficient throughput in busy calibration laboratories.

Performance Specifications

Temperature range spans 5 to 55°C with ±0.1°C accuracy, temperature uniformity of 0.10°C, and temperature stability of 0.05°C. Humidity range extends from 5 to 95% RH at 23°C with ±1.0% accuracy, uniformity of 0.30% RH at 23°C, and stability of 0.15% RH at 23°C. Ramp and soak rates include temperature high to low at 0.50°C per minute, temperature low to high at 1.00°C per minute, humidity high to low at 1.00% RH per minute, and humidity low to high at 5.00% RH per minute.

Advanced Desiccant System

The Model 4000 features three desiccant chambers designed to hold GEO desiccant canisters. These chambers operate on independent isolated valves, allowing hot-swapping of canisters without interrupting active calibration routines. This unique design enables technicians to walk away from the generator without concern that desiccant depletion will interrupt calibration workflows, significantly improving laboratory efficiency.

Calibration Capabilities

An internal rack accommodates mass data logger calibration, enabling simultaneous calibration of multiple devices. Automatic ramp and soak programming simplifies complex calibration sequences. PID controller provides precise regulation of conditions. This calibrator is ideal for high-volume probe calibration operations and high-accuracy mass data logger calibration where throughput, reliability, and accuracy are critical requirements.