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CD 250/EVO

Temperature-controlled holder for the Evolution 300 and 600 Spectrophotometers for a wide variety of cuvette types or solid samples
Product Overview

The CD 250/EVO for the Evolution 300 and 600 Spectrophotometers provides temperature control, dry gas purging and magnetic stirring as needed to a wide range of cuvettes or other samples. This versatility is accomplished using a cuvette carriage which firmly mounts within the temperature controlled tower of the CD 250/EVO. 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. Fused silica windows may be placed on each side of the sample or cuvette to minimize convection losses. Depending on the carriage design, an additional optical port may be available at 90 degrees to the excitation. Use the CD 250/EVO for work in the biological range of 0 °C to 105 °C. With the correct carriage design and sample, extend temperature ranges to below -40 °C or up to 150 °C. Operate the TC 1/Single Temperature Controller using the menu button or control via optional program T-App.

Product Features

Accepts wide variety of cuvette types
Rapid, precise temperature control
Optional extended temperature range
Strain-free, fused-silica windows
Optional optical port at 90 degrees
Variable-speed magnetic stirring
Dry gas purge
Base for mounting in the spectrophotometer
Probe input for sample temperature
NIST-traceable temperature calibration

  • Technical Specifications
    Number of cuvettes controlled
    1
    Typical use
    Absorbance, circular dichroism, fluorescence
    Standard cuvette size
    Wide range of sizes and styles
    Optical ports per cuvette
    2 absorbance, 1 fluorescence
    Optical port dimensions
    12.5 mm diameter round
    Fluorescence port dimensions
    12 mm high x 10 mm wide
    z-Height
    15 mm
    Built-in optical slit holders
    2 per cuvette
    External windows available
    Yes
    Normal factory set temperature range
    -40 °C to +105 °C
    Temperature range easily achievable
    -15 °C to +105 °C
    Range with special techniques
    -15 °C to +105 °C
    Extended factory set temperature range
    -55 °C to +150 °C
    Extended temperatures achievable
    Depends on cuvette
    Temperature precision
    ±0.02 °C
    Temperature accuracy
    Better than ±0.3 °C from 0 ⁰C to +80 ⁰C
    Accuracy greater range
    Better than ±0.5 ⁰C from ‐20 ⁰C to +110 ⁰C
    Temperature reproducibility
    Better than ±0.07 °C
    Thermistor probes accepted
    Series 400 or Series 500
    Magnetic stirring motor type
    DC
    Magnetic stirring speed range
    400-4000 rpm
    Default stirring speed
    1200 rpm
    Stirring speed best performance
    900-1800 rpm
  • Basic Package

    CD 250 Versatile cuvette holder (requires carriage – see Accessories)
    TC 1/Single – Temperature Controller
    Baseplate
    Two fused silica windows in screw-in holders
    Bath 10 – Circulator
    NIST-traceable calibration and performance data
    Accessories – Magnetic stir bar, tubing and cables

  • Accessories
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