Equipment Description

The determination of water and released carbon dioxide is a special type of analysis that finds application, for example, in the quality control area of the cement and plaster industries. ELTRA's CW-800 has been conceived for the simultaneous and precise determination of CO 2 and H2 O , especially in limestone, gypsum and cement, as well as other types of samples such as ores, soils and minerals. This analyzer measures concentrations from ppm to 100% (depending on the weight of the sample).

The CW-800 is equipped with a resistance furnace with a quartz tube where the sample is oxidized at a temperature of up to 1000 ° C. The temperature can be precisely programmed in steps of 1 ° C and remains constant throughout the analysis cycle. Nitrogen is used as carrier gas.

The CW-800's detection system is highly sensitive, accurate, reliable, long-life, and can be tailored to individual user needs. This analyzer can be equipped with two independent infrared cells to ensure even more accurate measurement of CO
2 and H 2 O.


  • Simultaneous determination of CO 2 and H 2 O with minimal sample preparation
  • Fast, accurate and reliable determination of elements
  • For a wide variety of samples
  • Resistance oven with temperature up to 1550 ° C, adjustable in steps of 1 ° C
  • Wide and flexible measuring range thanks to individual configuration of IR cells
  • Thanks to IR paths, cells have a longer lifetime for analysis of samples containing halogens or acids
  • Powerful software (multi-language, custom user interface, data export)
  • Single-point and multi-point calibration
  • No halogen trap required
  • Electronic gas flow control
  • Minimal maintenance
  • Robust design that enables use both in the laboratory and in production control


  • Elements Water, carbon dioxide
    Oven position Horizontal
    Sample holder Quartz boats
    Application area Geology / mining, building materials, environment / recycling
    Type of oven Resistance furnace (quartz tube), up to 1000 ° C (adjustable)
    Measurement type Fixed temperature, single carrier gas
    Measuring principle Infrared absorption
    Number of IR cells 1 - 2
    Material of IR path Gold
    Typical analysis time 2 - 3 min
    Required Chemicals Sodium hydroxide, magnesium perchlorate
    Required gases Nitrogen 99.995% (2 - 4 bar / 30 - 60 psi)
    Electric connection 230 V, 50/60 Hz, max. 10 A, 2300 W
    Measurements (A x H x F) 55 x 80 x 60 cm
    Weight ~ 65 kg
    Required Accessories 0001 g, PC, balance (resolution 0, monitor)
    Optional gadgets 5 kVA voltage stabilizer