| Description: |
| 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 |
| Specification: | |
| 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 2×6.3 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 |
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