Swap the thermocouple input wires (Pin 9 and 10).
Always disconnect the power supply before wiring the device. Refer to the diagram printed on the side of your specific unit, as terminal layouts can vary slightly between manufacturing batches. sinotimer mc101 manual
Unlike a standard relay that just turns on/off, the MC-101 is a . It allows you to set specific time intervals (from 0.1 seconds to 999 minutes) to control a connected device. Swap the thermocouple input wires (Pin 9 and 10)