30 Cu. Ft. Chamber


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Parameter chambers feature our unique humidity control system that enables the user to attain unsurpassed levels of RH/temperature control and uniformity.

Parameter’s test chambers are designed to accurately produce the temperature and humidity conditions required for applications including stability studies, package testing, TAPPI, MIL-SPEC, and vapor transmission.

Applications for the 7000 Series units include diverse industries, such as pharmaceutical development and manufacturing, electronic components, food, semiconductor, paper and pulp, and anywhere precise humidity control and temperature replications are required.

The interior chamber of each unit is constructed of a very durable, corrosion resistant 304 stainless steel. Low watt-density heaters are used that also contribute to the unit’s longer life.

Depending on the application, the chamber airflow can be factory configured from the standard horizontal flow to a vertical flow. Additional options include extended ranges, chart recorders, outer door window, or clear inner door with optional iris opening. System includes free logging software.

All Parameter equipment is exhaustively tested at your specified condition before being shipped to ensure trouble-free operation.

To download product specification pdf, click here.



The unique humidity control system in Parameter’s chambers enables the user to attain unsurpassed levels of RH/temperature control and uniformity.

Features and benefits of our 30 Cu. Ft. Chamber, series 7304-3140, include:

RH control constancy of ±0.5%
Temperature control constancy of ±0.2°C
Various safety cut-offs
316 stainless interior chamber
User-friendly digital controller with logging software
Extremely stable and uniform environment
Superior constancy and uniformity
Secure and safe
Longevity of equipment; corrosion resistant
Ease of operation

RH Variables

RH VariablesParameterCompetition
Total± 2.5%± 6.0%
Control Constancy± 0.5%± 2.0%
Chamber Uniformity± 1.0%± 2.0%
Sensor Accuracy± 1.0%± 2.0%


Relative Humidity Range: 20 to 93% (limited by a 5°C dew point)
Relative Humidity Constancy: ±0.5% 
Relative Humidity Uniformity: ±1.0% at 25°/60% 
Temperature Range: 7 to 45°C 
Temperature Constancy: ±0.2C 
Temperature Uniformity: ±0.2C at 25°/60%


Domestic: 208/230V, 1-Phase, 60Hz, 10.2 FLA, 6.4 RLA 
International: 230V, 1-Phase, 50Hz, 6.8 FLA, 4.2 RLA 
Refrigeration Unit: Fractional HP utilizing non-ozone depleting gas 
Maximum heat of rejection: 4,200 BTU per hour

Weight & Dimensions


400 lbs.


1100 lbs.


41”w x 32”d x 83”h (nominal)


28”w x 32”d x 56”h (nominal)

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