For temperatures up to 1100 °C. Ceramic muffles heated from 4 sides for good temperature homogeneity (AAF 11/3 and AAF 11/7), AAF 11/18 model is heated from 2 sides with covered heating elements Parallel swing-up doors Hot door insulation is always facing away from the user Vacuum-formed fibre insulation Heating-up time: approx. 100 min Preheated air intake for optimal temperature distribution Air exchange rate: approx. 5 to 6 air changes per minute Exhaust outlet with vent (Ø 38 mm) With door contact switch PID thermostat with digital display (target/actual temperature display) Input of a temperature control profile with 2 segments (heating rate and hold time) using the timer function Built-in timer function (runtime: 99 h and 59 min) The timer can be operated in 5 different modes, e.g. the timer waits until the set temperature is reached, then begins to count down and on expiration shuts off the heater Please pay attention to supply voltages Muffle/ashing furnaces AAF series Delivery incl. inconel bottom tray with handle (AAF 11/3 and AAF 11/7) or Inconel rack with handle for loading with samples on two levels (AAF 11/18).