
Stability Rooms
and Environmental Rooms

Stability Chambers:
Constant Relative Humidity
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Stability Chambers, Stability Rooms, and Environmental
Chambers by Parameter Generation & Control.
Parameter Generation & Control (PGC) specializes in humidity
control chambers and environmental chambers by providing precise
relative humidity and temperature control with walk-in rooms, reach-in
chambers, and relative humidity generators to serve existing structures.
Precise humidity control systems are our specialty.
Our products include:
- Stability chambers and stability rooms
for the pharmaceutical industry that exceed ICH guidelines in
regards to temperature and relative humidity control.
- Temperature humidity chambers and temperature/relative
humidity generating units for mini-environments within the
Semiconductor industry.
- TAPPI rooms for the paper industry.
- Environmental test chambers for temperature
and relative humidity calibration utilizing chilled mirror technology.
- Environmental chambers and environmental
rooms for stress testing of products within various industries.
- Relative humidity calibrations chambers to the Metrology industry for relative humidity and temperature sensor calibration.
As indicated by the chart below, achieving and maintaining very
precise relative humidity (RH) and temperature control within
an environmental chamber distinguishes PGC from the competition.
| RH Variables |
PGC,
Inc. |
Competition |
| Total |
± 2.0% |
± 6.0% |
| Control Constancy |
± 0.5% |
± 2.0% |
| Chamber Uniformity |
± 0.5% |
± 2.0% |
| Sensor Accuracy |
± 1.0% |
± 2.0% |
It is critical that all three parameters are
considered when maintaining humidity control chambers, stability
rooms, TAPPI rooms, and other environmental chambers that require
close temperature and relative humidity control.
PGC engineers assess your needs to bring you the best
solution for your particular application and conditioning
requirements.
The PGC engineering staff’s approach to a customer inquiry
is to first evaluate the needs and requirements of the customer.
Some of the elements involved in this evaluation are:
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What are the required
conditions?
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What are the dimensions
of the area to be conditioned?
-
Will there be an internal
heat load and if so, how much is it?
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Are there special requirements
such as ramping and soaking?
These are just some of the questions that are asked. The objective
is to obtain as much information as possible. In this way,
the most accurate determination of the best approach for meeting
the customer’s needs can be made.
Larger Projects: If the project is large,
PGC can provide a turnkey solution for your job including the
conditioning system, PID controls, and any walk-in rooms required.
Additionally, PGC designs and manufactures reach-in chambers
for the
projects requiring smaller units. All equipment is fabricated and constructed
at the PGC manufacturing facility. Upon completion, each unit is tested
for at least 72 hours before shipment. For larger jobs, installation and
operator training can be arranged. By being involved through the entire
project, PGC can assist the customer to
avoid problems that typically occur when air handlers, refrigeration components,
walk-in rooms, and controls are provided by separate sources.
Laboratory Spaces: Additionally, the PGC systems are capable of conditioning
existing laboratory spaces and other building areas. A standard
PGC conditioning unit can be easily situated near an existing
room, ductwork and necessary utilities
connected, the required conditions programmed, and it is then ready to
operate.
New Technology/Proven Techniques: Over the course of PGC’s history, our engineering staff
has continually worked to combine new technology with proven
techniques. Many of the changes and technical improvements can
be adapted to older units, and most parts for all previously
manufactured PGC equipment are still in stock. A PGC unit is
capable of remaining as up-to-date and efficient as the day
it was purchased.
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