Model 280/Timer Two independent controllers with timers


Two independent safety controllers in the same cabinet to run two independent reactions. Each channel has a 100 hour digital timer to turn heating Off (or On) at a user entered time. Designed for processes requiring uncompromising safety. The only temperature controller available with a built-in independent backup controller to guard against heating accidents from equipment failure. The desired temperature is entered into the main temperature controller which regulates heating, and then a high temperature cut-off is entered into the backup limit controller. If the reaction reaches the high temperature limit or a thermocouple breaks, power is turned off to the heater until the controller is manually reset. Both meters independently monitor the reaction temperature. In the event that one meter fails, the other takes over to prevent a heating accident. J-KEM’s design provides independent 100% redundant control. Contains J-KEM’s patented power control computer which provides 0.1° regulation of anything.

Specifications: 120vac, 15 amps, 1800 watts.
Warranty: 2 Years

The temperature range desired determines the probe/thermocouple type:

J [black] (0 – 800° C)
K [yellow] (-50 – 1200° C)
T [blue]  (-200 – 250° C)


Complete system includes: one controller, two dual element Teflon thermocouples (12″ long, 1/4″ diameter), two dual element connecting cords, and two 14/20 joint adapters.

System thermocouples are Teflon-coated and should not be used above 190° C

Inquire about NRTL approval.

Academic and volume discounts are available.

4/5 (4 Reviews)
Weight 8 lbs
Dimensions 12.5 × 12 × 5.5 in
SKU: model-280-timer