110   23-03-2009  105446  06 
 
THERMAL SPECIFICATIONS –  
LIQUID BATHS 
ATC-250 A/B 
  Long term drift (1 year) :   
±0.05°C / ±0.09°F 
Calibration accuracy (test limit)   ±0.13°C / ±0.23°F 
Temperature coefficient  5ppm/°C (0-40°C) (32-104°F) 
Stability  ±0.02°C / ±0.04°F 
Reference accuracy  ±0.10°C / ±0.18°F 
Total accuracy (std. cal. with insert)  ±0.50°C / ±0.90°F 
Heating time incl. insert    28°C / 82°F to 100°C / 212°F :   3 min. 
50°C / 122°F to 100°C / 212°F :   2 min. 
100°C / 212°F to 250°C / 482°F :   9 min. 
Time to stability   15 min. 
Cooling time incl. insert  250°C / 482°F to 100°C / 212°F :  27 min. 
100°C / 212°F to 50°C / 122°F :  27 min. 
100°C / 212°F to 28°C / 82°F :  55 min. 
 
 
THERMAL SPECIFICATIONS  ATC-320 A/B 
Maximum temperature  320°C / 608°F 
Minimum temperature  10°C / 50°F @ ambient temperature 0°C / 32°F 
33°C / 91°F @ ambient temperature 23°C / 73.4°F 
50°C / 122°F@ ambient temperature 40°C / 
104°F