General Specifications
Model 4000 humidity and temperature calibrators are designed for precise calibration with traceability to NIST under ISO 17025 standards. The operating ambient conditions range from 18°C to 28°C with humidity up to 80% RH. The controlled temperature range is 5°C to 55°C, with varying humidity ranges depending on the temperature.

Calibration System Accuracy
The system offers a temperature accuracy of ±0.10°C and humidity accuracy of ±1.00% RH, typically ±0.50%. It uses a PID controller for precise control.

Uniformity and Stability
Temperature uniformity is maintained at 0.10°C, and humidity uniformity at 0.30% RH at 23°C. Stability is 0.05°C for temperature and 0.15% RH for humidity at 23°C.

Resolution and Rate of Change
The display resolution is 0.01°C for temperature and 0.01% RH for humidity. The typical ramp/soak rate of change is 0.50°C/minute from high to low temperature and 1.00°C/minute from low to high. For humidity, it is 1.00% RH/minute from high to low and 5.00% RH/minute from low to high.

Consumables
The water reservoir has a capacity of 1.75 L and requires distilled water, with an estimated refill period of 15 days. The desiccant type is a molecular sieve, with replacement frequency depending on usage.

Mechanical and Electrical Specifications
The body is made of powder-coated aluminum, with generator dimensions of 671.60 mm x 773.00 mm x 501.50 mm. The chamber has a capacity of 38 liters and is made of insulated acrylic. The device weighs 45.36 kg and operates on a universal power supply of 100-260 VAC, 50/60 Hz.

Ordering Information
Various door and port configurations are available, including hinged 10-port doors and chilled mirror door inserts. Part numbers are provided for different configurations and accessories.

For more information, contact GEO Calibration Inc. at [email protected] or visit their website at www.GeoCalibration.com.