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Quantum Northwest – Brr 20 Cuvette Holder

Brr 20

User-customizable, Temperature-controlled cuvette holder with extended low temperature response with two optical ports


The Brr 20 is a temperature-controlled cuvette holder for the range of +110 °C down to -55 °C. It is designed for use in absorption spectroscopy or experiments that can be performed using the two ports. This is the least expensive version intended to be mounted and adapted entirely by the user. Use the Brr 20 to set and maintain precise sample temperatures and stir at a steady reproducible rate, while bathing the cuvette in a controlled gaseous environment. This product is provided with a windowed vest to enhance performance at low temperatures and minimize condensation that may form on the windows. Circulating water is used to remove heat from the Peltier heat exchanger. Purchase the extended temperature option to extend operation above 110 °C to 150 °C. Control the Brr 20, using the TC 1B Temperature Controller included in the purchase price. For additional control and temperature monitoring, use Quantum Northwest’s computer control software, T-App, available for purchase.

– Rapid, precise Peltier temperature control -55 °C to +110 °C
– Precise stepper-motor-driven magnetic stirring
– Dry gas purge for work at low temperature
– Insulated lid to improve temperature stability
– Threaded inserts to mount windows or filters
– Cuvette lifter for removal of cuvette
– Probe input for sample temperature
– NIST-traceable temperature calibration

Number of cuvettes controlled —– 1
Typical use —– Absorbance
Standard cuvette size (outside) —– 12.5 mm x 12.5 mm
Optical ports per cuvette —– 2
Optical port dimensions —– 12 mm high x 10 mm wide
Windowed vest available —– Yes
Factory set temperature range —– -55 °C to +110 °C
Temperature range easily achievable —– -55 °C to +110 °C
Temperature precision —– ±0.02 °C
Thermistor probes accepted —– Probe/10k-Brr
Magnetic stirring motor type —– Stepper
Magnetic stirring speed range —– 1-2500 rpm
Default stirring speed —– 1200 rpm
Stirring speed best performance —– 60-1800 rpm