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Thermoreactor CR 4200

WTW thermoreactor CR 4200

Thermoreactor for parallel thermal digestion with 2x12 round cuvettes with 8 fixed / 8 user-defined programs with temperatures of up to 170°C and AQA

  • 2 digestion programs simultaneously
  • 8 fixed programs for quick operation
  • 8 user-defined programs from 25-170°C with high temperature digestion
  • AQA/IQC with external temperature sensor

Standardized digestion programs for the standard parameters COD, quick COD (148°C, 20 min.), total nitrogen, total phosphorus, TOC and heavy metals of galvanizing with automatic heating and switch-off. 8 user-defined digestions at temperatures between 25-170°C can be programmed for special degradations and therefore also allow high temperature digestions. Two different programs for 12 cuvettes each can be run at the same time. You can use an external temperature sensor instead of a vial with data output to the PC/printer for analytical quality assurance (AQA). 


Model Description Order no.
CR 4200 Thermoreactor for thermal digestion of up to 170°, 2x12 cuvettes for two programs at the same time, fixed and user-defined programs, AQA, 115/230V adjustable, country-specific power supply 1P23-1

Technical Data

Cuvette shafts 2x12 cuvette shafts for round cuvettes,
16 ± 0.2 mm outer diameter
Reaction time setting 20 min, 30 min, 60 min, 120 min (via fixed programs),
Temperature setting 25 - 170°C freely programmable
100 °C, 120 °C, 148 °C, 150 °C via fixed programs
Overtemperature protection 190 °C ± 5 °C
Regulating accuracy ± 1 °C ± 1 digit
Temperature stability ± 0.5 K
Energy supply 230 VAC 50 Hz ± 15 % / optional 115 VAC 60 Hz ± 15 %


Model Description Order no.
P 3001 Thermal matrix printer for devices with RS232 interface 250045
TFK CR External temperature sensor 250100
AK CR/P Connecting cable thermoreactor to a printer 250101
AK CR/PC Connecting cable thermoreactor to a printer 250102
Crack-SET 10-C 14688 Crackset heavy metal degradation, 25 cuvettes 252033
Crack-SET 10 14687 Crackset for heavy metal degradation (reagents for 100 degradations in 16 mm empty cuvettes) 250496
Crack-SET 20 14963 Crackset for nitrate degradation for the determination of total nitrogen (test sets 14563, 14542, 14733), (90 degradations in 16 mm empty cuvettes) 250497
RK 14/25 25 round cuvettes (16 mm) 250621


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