Programmable heating block for chemical-analytical digestions with 24 holes for test tubes with 16 mm OD (outer diameter). Features: • High-speed COD, total nitrogen and total phosphorus in 30 minutes. • Preprogrammed standard programmes for all routine digestions. • Easy to programme for user-defined methods. • External temperature control and calibration with the NANOCOLOR® T-Set. • Simultaneous digestion of 24 samples in 2 independently usable heating units. • 5 preprogrammed temperatures 70 / 100 / 120 / 148 / 160 °C. • 4 preprogrammed heating times ½ h / 1 h / 2 h / cont. • 7 free memory locations for individual temperature settings from30 – 160 °C (1 °C increments). • 8 free memory locations for individual time settings from 0:01 – 99:59 h (0:01 h increments). • Very short warm-up times (from 20 to 100 °C within 5 minutes). • High-speed COD, total nitrogen, total phosphorus and total metals in only 30 minutes. • Extra thick safety covers on the surface of the heating blocks as protection against contact (10 mm, exchangeable). • Stable integrated protective coverings. • High temperature stability. • Electronical protection against excess temperature. Specifications: • Type: Programmable heating blocks for chemical-analytical digestions with 24 holes for test tubes with 16 mm OD (outerdiameter); integrated protective lids. • Display: Coloured, backlit LCD touchscreen. • Operation: Menu guidance via touchscreen. • Temperatures: 5 preprogrammed temperatures (70 / 100 / 120 / 148 / 160 °C); 7 free memory locations for individual temperature settings. • Temperature range: 30 – 160 °C (1 °C increments). • Temperature stability: ± 1 °C (according to DIN, EN, ISO and EPA methods). • Warm-up times: from 20 °C to 160 °C within 10 minutes. • Heating times: 4 preprogrammed heating times (½ h / 1 h / 2 h / cont.); 8 free memory locations for individual time settings. • Time range: 1 min – 999 mi (1 min increments). • Safety: - Replacable safety covers as contact protection. - Lockable protective lids. - Overheating protection. • Interface: bidirectional serial RS 232, USB A (master) and USB B (slave). • Analytical quality control: With NANOCOLOR® T-Set (optionally fully automatic calibration and preparation of test certificates for instrument control and monitoring according to ISO 9001). • Update: Via USB/RS232 and PC. • Power supply: 110–230 V~, 50/60 Hz. • Power consumption: 250/500 VA. • Dimensions: 290 x 287 x 146 mm. • Weight: approx. 3.2 kg. • Marking: CE. • Warranty: 2 years.