Digestion of the sample is an important step in photometric water analysis. The NANOCOLOR® VARIO 4 heating blocks with 24 holes for 16 mm Ø test tubes perform all required sample digestions in water and waste water analysis quickly and safely. The unit features 4 pre-programmed heating times: 30/60/120 min or continuous and has 8 free memory locations for individual heating times. There are 5 pre-programmed temperatures: 70/100/120/148/160 °C and 7 free memory locations for individual temperature settings. Temperature stability is ± 1 °C (according to DIN, EN, ISO and EPA methods). Warm-up time from 20 to 160 °C within 10 minutes.

• Extra strong safety covers protect against contact
• Graphic display of heating curves
• Electronic overheating protection
• Time function:1 min to 9 h 59 min (increments of 1 min)
• Lockable protective lids

NANOCOLOR® VARIO C2 has 12 bores for 16 mm Ø test tubes.

NANOCOLOR® VARIO HC features a cooling system for active rapid cooling after digestion. The unit has 12 bores for 16 mm Ø test tubes allowing simultaneous digestion of 12 samples and its heating unit includes and aerator, allowing users to digest all important parameters in just 30 minutes.