CU-36L4 Plant Growth Chamber

Percival’s IntellusUltra controller

Percival Scientific has built a reputation of providing flexible, customized options for research scientists around the world. We’ve taken that philosophy to the next level with our improved IntellusUltra Controller. Now choose from the levels of functionality that meet your research needs.

Lighting system

• Each tier of shelves lighted by cool white fluorescent lamps properly spaced for uniform light intensity over entire shelf

• Intensity programmable up to 140 µmoles/m2 /s of light irradiance measured @ 6" from lamps on 2 on/off light events

• Programming and control of the lighting is done via IntellusUltra real time controller

Cabinet construction

• 26-gauge smooth galvanized white side walls and top reinforced with 24-gauge backer plates

• Interior floor constructed of 24-gauge #304-4 stainless steel

• 24-gauge smooth white galvanized exterior

• NSF compliant seam design

• Overall wall thickness 2"

• Foamed-in-place non-CFC insulation (refer to insulation section)

• One 1¼" diameter access port on right hand wall

• Chamber floor equipped with floor drain and hose assembly

• Contains casters assembly and adjustable leveling legs to compensate for floor unevenness in the lab

Airflow/circulation

• Conditioned air circulates through a rear wall duct and is picked up by a specially designed fixed air diffuser located at the bottom of each tier (air is then delivered vertically upward at a slow speed through each shelf)

• Air diffuser insulates shelf level experiments from heat generated by underlying light fixture (this design minimizes condensation on dish lids)

Insulation

• Woodless construction using 2" thick foamed-in-place non-CFC Urethane insulation with 93% closed cell, R-value of 12.5, K-value of 0.16 and density of 2.2 lbs/ft3

Door

• One door opening 29.2" x 57.5" (74 cm x 146 cm) provides full access to the chamber interior (magnetic gasket provides a tight seal to door frame)

Interior space

• 29.7 ft3 (0.8 m3 ) with work area of 21.6 ft2 (2 m2 ) provided on four shelves

Shelving 

• Four tiers of white epoxy coated steel wire shelving (each shelf is 27"D x 28.8"W [68.6 cm x 73 cm])

• Shelves slide in and out easily on stainless steel rail assemblies

• Maximum growing height is 7.8" (19.7 cm)

Finish

• Interior and exterior painted with highly reflective, environmentally friendly, high temperature baked white powder coating

Refrigeration

• Self-contained air-cooled condensing unit with hot gas bypass system for continuous compressor operation, extended life and close temperature control (this continous running condensing unit ensures precise temperature control by alternately cycling refrigerant and hot gas to coil; this also prolongs life of compressor, and eliminates risk of ice build up in coil)

• Solenoid valves have an extended stem for quiet and long life operation

• Ceiling mounted evaporator coil incorporates twin air circulation fans in aluminum housing (heat rejection to ambient [standard chamber] = 2800 BTU/hr.)

Temperature safety limit controls

• (Experiment Protection) Adjustable high and low temperature controls, audible alarms, and visual indicators provided

• Controls shut down all power to the chamber, activating alarms (when the temperature returns to the normal range the system will automatically reset)