Darwin Chambers
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Stability Refrigerators – ST09

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Stability Refrigerator – ST09

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Cabinet Construction
  • Standard model features powder-coated door, front, and sides. Interior has 304 stainless steel on door liner, top, bottom, back and sides.
Racking
  • Racking available to stack units.
Doors
  • Positive magnetic seal, reversible.
Insulation
  • Entire cabinet structure and doors insulated using 2″ urethane foam.
Shelving
  • 2 stainless steel wire shelves included. Shelves capable of supporting up to 150 lbs of evenly distributed weight.
  • Full height shelf support pilasters, with double oblong holes on 1″ centers. Pilasters made of stainless steel. Four (4) chrome plated, stainless steel shelf clips to be included for each shelf.

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Refrigeration System
  • Unsurpassed temperature control through continuous refrigeration bypass system.
  • Refrigeration system factory balanced using CFC free 134A refrigerant.
  • Top mounted condensing unit.
  • Factory pre-engineered capillary tube system with oversized condenser and evaporator to reduce product pull down time and to consistently maintain interior cabinet temperature (non-adjustable capillary tube system superior to problematic expansion valve).
  • Evaporator – epoxy-coated at the time of manufacture to eliminate the potential of corrosion.
Electrical Characteristics
  • Unit completely pre-wired at factory, and ready for final connection to a 115/60/1 phase – 15 amp dedicated (recommended) outlet. Unit runs approx. 6RLA under test conditions.
  • A cord and plug set is included.
  • A sole use circuit is recommended.

Popular options include chart recorder and TraceLock electronic/audit capable locks.

Features

ST Series

Our ST series come standard with the following: temperature range of 1° C to 15° C. Control of temperature at sensor of ±0.2° C. Uniformity inside chamber of ±1.0° C. Standard Microprocessor Controller with PID, autotuning, programmable alarms, ability to ramp/soak, process variable and setpoint variable offset, dual display of actual temperature and setpoint temperature (process variable and setpoint variable). Controls are able to be quickly exchanged for future upgrades or repair. As always, if you have different specifications, probes, microprocessors etc., we can probably do it.

Widely Proven, Non-Proprietary Controllers

Standard controllers for the ST Series are manufactured by Fuji Electric and are ideal for stability testing chambers. Unlike many proprietary controllers, this controller is commercially available and proven in tens of thousands of installations. Standard functions include: autotuning, fuzzy logic, PID control, programmable alarms, calibration capability, offset capability, etc. A touchscreen control interface is optional. Other controller manufacturers are also supported (Watlow, Allen-Bradley etc.)

Services and Warranties

We offer 24 hour technical support throughout the lifetime of your chamber. In addition to standard warranties, we also offer extended warranties for cooling components, parts and labor. We also provide qualifications, validations and preventive maintenance services at an additional cost. Please ask for a quote.

Superior Control and Uniformity

The ST series chambers control well within the specifications required by the FDA and ICH for GMP studies. Standard control at the sensor in these chambers is ±0.2°C.

Quiet Operation

The ST series utilize quiet, highly efficient DC fans.

Options Available

  • Data Logging
  • Chart Recorders
  • Touch Screen Controls