Product Overview

• • Digestions of 24 round cells with pre-programmed and user-defined programs

  • In total 24 round cells (16 mm) in two seperate heating blocks using the same program

  • 8 stored programs for easy and fast operation including COD fast digestion

  • 8 user-defined programs from room temperature/25-170°C with high temperature digestion

  • AQA/IQC with optional external temperature sensor for documentation

  • Programs for standard parameters COD including fast digestion (148°C, 20 min.), total nitrogen, total phosphorus, TOC and heavy metals of galvanizing with automatic heating and switch-off quick. User defined programs can be easily entered and stored from room temperature respectively 25-170°C to perform special digestions and thus allow high temperature digestion.

  • The very same program can be run for all vials at the same time; to perform two parallel digestion programs, the CR 4200 is the suitable choice. For the analytical quality assurance (AQA), the external temperature sensor TFK CR can be connected to the PC/printer instead of a round cell.

  • Programs for standard parameters

  • 1: 148 °C for 120 minutes

  • 2: 120 °C for 30 minutes

  • 3: 120 °C for 60 minutes

  • 4: 120 °C for 120 minutes

  • 5: 100 °C for 60 minutes

  • 6: 148 °C for 20 minutes

  • 7: 150 °C for 120 minutes

  • 8: 100 °C for 30 minutes

  Reactor type	Dry temperature control device with safety cover
  Cell shafts	2 x 12 cell shafts for reaction cells, diameter: 16 ± 0.2 mm
  Reaction time setting	program settings or user-defined programs up to 180 min
  Temperature setting	stored program, user-defined settings from room temperature up to 170°C
  Controlling accuracy	± 1 °C ± 1 digit
  Temperature stability	± 0.5 K
  Overtemperature protection	190 °C ± 5 °C
  Dimensions	D x W x H: 312 x 255 x 185 mm
  Weight:	4 kg
  Output	unidirectional RS232 interface with 2 banana sockets for external temperature sensor (article-# 250 100), printer, PC
  Power supply	115/230 VAC 50/60 Hz switchable via fuse setting allowed voltage tolerance: ±15 % maximum power consumption: 560 W, Fuse 2x6.3 AT
  Protection Class	IP 20 according to EN 60529
  Ambient temperature	Operation +5 °C to +40 °C
  Climatic class	2 according to VDI/VDE 3540
  	Relative humidity: Yearly mean: < 75 %
  	30 days /year: 95 % Other days: 85 % Light dew: yes
  	Site altitude: max. 5000 m above sea level
  EMC	EN 61326-1
  	FCC 47 CFR Part 15
  Test certificates	cETLus, CE
  Safety standards	EN 61010-1
  	EN 61010-2-010
  	UL 61010-1
  	CAN/CSA C22.2#61010-1
  	CAN/CSA C22.2#61010-2-010