• Horizontal air circulation
• Solid state water levelers
• Temperature and humidity controller
• Thermal cutoff
• Adjustable airflow
• Heat limiter
• Humidity sensor
• temperature alarm and shutdown circuit

Performance

Range 1 - Operation with reservoir filled & low capacity dehumidification.

• Controller Tolerance:
• Temperature: ±1/2°C
• RH: ±1%
• Operation intended to allow control of temp. and humidity conditions typically higher dry bulb temperature and relative humidity. Little or no wattage dissipation from the product under test is tolerated by this condition.

Range 2 - Operation with reservoir filled and time proportioned dehumidification.

Controller Tolerance:

• Temperature: ±1/2°C
• RH: ±2%
• Provides expanded capabilities in terms of the range of controlled conditions and the amount of wattage dissipation tolerated at each condition.

Range 3 - Operation with reservoir drained and time proportioned dehumidification.

Controller Tolerance:

• Temperature: ±1°C
• RH ±3%
• By using Range 3, FRS, and FRP units provide wider range of humidity control, reaching into lower relative humidity ranges of chamber capability. Range 3 provides intermittent use at very low RH conditions, typically up to 8 hours in test duration.

Controller - Watlow F4

• Single Channel
• Profiling: Forty Profiles, 256 Steps
• Automatic & Manual Control
• 1 Input: Universal Type (RTD is Std.)
• 4 Digital Inputs
• 2 Auxiliary Analog Inputs - Optional
• 2 Control Outputs: Time Proportioned, On/Off, or 4-20 ma
• 2 Alarm Outputs
• 8 Digital Event Outputs
• 2 Retransmit Outputs - Optional
• Communications: EIA-232 and EIA-485 with Modbus RTU protocol