PGC's 4.5 cubic foot Climate-Lab is a durable, high quality humidity/temperature chamber for scientists and engineers whose research, testing, or quality control applications require environmental simulation and control within extremely narrow tolerances.

The 4.5 cubic foot Climate-Lab controls relative humidity very precisely by controlling the dew point of the air by use of a closely controlled water spray chamber.

Conditioned air enters the chamber through the entire right side wall, travels across the chamber and exits throughout the left side wall to be reconditioned. Air travels up the left side plenum, and a portion of air enters the water spray chamber where it passes through a fine mist of water controlled to ±0.1ºC.

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Each water droplet is surrounded by a thin film of air which moves with the particle and is saturated with water vapor at the temperature of the droplet. Some of the water evaporates or is condensed at the droplet surface to maintain a thermal and vapor pressure equilibrium between the saturated layer and the water droplet.

After the air passes through the water spray, it travels through a mist eliminator and across an electric heater to raise the temperature to the desired dry-bulb temperature. A rotary fan mixes and returns the air to the test chamber.

Precise control of humidity and temperature is achieved by conditioning the air in the Climate-Lab before it enters the test chamber. This eliminates the main source of humidity and temperature differentials encountered in systems employing sprays, pans, heaters, atomizers, salt solutions, etc., within the test chamber.

Benefits:

· Precise

Better than ±0.2ºC and ±0.5% RH is accomplished in the 4.5 cubic foot Climate-Lab

· Easy

The 4.4 cubic foot unit is the smallest unit PGC's build and is designed for bench top mounting (an optional base cabinet is available)

· Durable

316 stainless steel interior with heliarc-welded seams

· Proven

PGC has been building humidity chambers since the mid-1970s using a principle established and proven since the 1930s

Standard Feature:

· Adjustable over-temperature safety thermostat for both air and water

· High quality solid state control circuit

· 3-3/4" port in one wall

· 316 stainless steel

· Pebbled exterior finish

· Automatic liquid-level device

· Magnetic seal chemical pump for water spray circulation

· Centrifugal fan for circulating air through the test chamber

· Low watt density heaters to ensure long life

Visit our website at: www.humiditycontrol.com