Thermoreactors for easy digestion of standard parameters
Safe and easy operation with automatic heating and switch-off for standard digestions
• 12 round cells (16 mm)
• 8 pre-programmed settings including fast digestion for COD
• Easy, quick operation for standard parameters
The required temperatures and degradation times for the standard parameters are stored in every WTW thermoreactor. In addition, there are different options for self programming and cuvette numbers available.
CR 2200 allows standardi digestion with programs for COD, total nitrogen, total phosphorus, TOC and heavy metals of galvanizing. The high reaction temperature over a defined period of time ensures a complete digestion of the sample. For COD, an additional program for fast digestion (148°C, 20 min) is available.
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 |