CD 250

The CD 250 is a temperature controlled sample holder that accommodates a wide range of cuvettes or other sample media. This versatility is accomplished by using a removable carriage which firmly mounts within the temperature controlled tower of the CD 250. Cuvette carriages are available for several kinds of cuvettes, including those that are square, rectangular or cylindrical, as well as other samples such as small plates or films. Other carriages can be inexpensively designed as needed! Mix and match carriages to fit the needs of any experiment or laboratory setup!

Fused silica windows may be placed on each side of the sample or cuvette to minimize convection losses. The CD 250 primarily used for absorbance measurements, although depending on the carriage design, an additional optical port at 90 degrees to the excitation may be available for observation of fluorescence or photochemical excitation.

The standard CD 250 is mounted on a base with a metric hole pattern for mounting on an optical breadboard. We have mounting options compatible with a wide array of spectrophotometers from different manufacturers, or contact us today for a custom mounting solution to meet your experimental needs! Check out the available options below!

The CD 250 is ideal for work in temperature ranges from -15 °C to 110 °C. Circulating coolant (usually water) is used to remove heat from the Peltier heat exchanger. The CD 250 will maintain precise sample temperatures and stir at a steady reproducible rate, with the ability to flood the optics in a controlled gaseous environment while working at lower temperatures to maintain optical clarity. Use the CD 250 to measure spectra at precisely maintained temperatures, or for temperature ramping, to observe changes with temperature.

Purchase the extended temperature option to increase the maximum temperature up to +150 °C and turn your unit into the ultimate, do-anything machine!

It is easy to operate the CD 250 using the TC 1 Temperature Controller, included in the purchase price. The sample temperature, stirring speed, and temperature ramp rate may be controlled manually using the TC 1 menu control buttons on the front panel, or by using Quantum Northwest’s computer control software,  T-App, available for purchase.