![]() |
Electric Air Heating Batteries - Heating Rods - Heating Cartridges |
Technical Description Operation The operation of the surfacemounting thermostat relies upon phenomenon of liquida expansion. The volume of a liquid filled sensor system (consisting of sensor, capillary tubing and membrane) varies with varying temperatures. The resulting membrane displacement actuates the mirco-switch. The temperature is only sensed by the temperature sensor. Switching Operation When the actual temperature exceeds limit temperature the mircoswitch opens (or closes) the electric ciruit by the sensor system. Change Over Contact When the limit temperature is exceeded, the electric ciruit is opend (or closed) and the mircoswitch is mechanically locked. After the temperature has returned down to the set limit the mirocswitch can be unlocked manually, only. Switch Element Cased miroswitch with change over contact and lock-out facillity. Opening (or closing) only upon rising temperature. |
Jumo ATHs-70U TÜV certifies for compilance with DIN 3440 standards, system of protection IP54 (cased). Application Area The ATHs-70U surface mounting thermostat is used as a safety temperature limiter in laboratory and climatic cabinets, in furnace applications and in mechanical applications per DIN 3440 standard. Safety Temperature Limiter with: change over contact and lock-out. Reset button can be operated after removing the cap. Adjustable Temperature Range: +20°C to +150°C Note: per DIN 57100 part 420 VDE0100 are two temerature momitoring systems, independent from each other, forcing required. One of them has to be performed as safety temperature limiter. |