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Dual, air-cooled, Peltier-control for the Evolution 300 and 600 Spectrophotometers
Product Overview

The qX2x2/EVO is a pair of cuvette holders providing independent Peltier temperature control for both the sample and reference cuvettes in the Thermo Scientific™ Evolution™ 300 or 600 Spectrophotometers. One cuvette holder is mounted in the sample beam of the spectrophotometer and the other in the reference beam. Utility connections run down in the front of the instrument through slots provided for this purpose. Use the qX2x2/EVO to set and maintain precise sample and reference temperatures, and stir at steady reproducible rates, while bathing the cuvettes in a controlled gaseous environment. Although dependent on rapid, precise Peltier technology, no circulating water is required for normal operation from 0 °C to 110 °C. Purchase the low temperature option, consisting of a windowed vest and capability for liquid cooling, and operate the qX2x2/EVO from 0 °C down to -30 °C. Purchase the extended temperature option to extend operation above 110 °C to 150 °C. Control the qX2x2/EVO, using the TC 1B/Dual 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.

Product Features

Rapid, precise Peltier temperature control
Precise stepper-motor-driven magnetic stirring
Dry gas purge for work at low temperature
Lid to improve temperature stability
Threaded inserts to mount windows or filters
Optical slit holders to control illuminated volume
Cuvette lifter for removal of cuvette
Probe input for sample temperature
Base and post for mounting in the spectrophotometer
NIST-traceable temperature calibration

  • Technical Specifications
    Number of cuvettes controlled
    Typical use
    Absorbance (sample and reference)
    Standard cuvette size (outside)
    12.5 mm x 12.5 mm
    Optical ports per cuvette
    Optical port dimensions
    12 mm high x 10 mm wide
    Cuvette z-height
    15 mm
    Windowed vest available
    Factory set temperature range
    -40 °C to +110 °C
    Temperature range easily achievable
    -5 °C to +110 °C
    Range with low temperature option
    -35 °C to +110 °C
    Range with extended temperature option
    -35 °C to +150 °C
    Temperature precision
    ±0.02 °C
    Thermistor probes accepted
    Magnetic stirring motor type
    Stepper under each cuvette
    Magnetic stirring speed range
    1-2500 rpm
    Default stirring speed
    1200 rpm
    Stirring speed best performance
    60-1800 rpm
  • Basic Package

    qX2x2 – Pair of temperature-controlled cuvette holders
    TC 1B/Dual – Dual-Channel Temperature Controller
    Base plates, posts and front panel
    NIST-traceable calibration and performance data
    Magnetic stir bars, tubing for dry gas and cables

  • Accessories
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