26High” alarm is the only alarm value which canbe changed. To change it, press the SCROLLbutton until “idHi” appears on the display.Press the UP or DOWN button to select theOTP value you desire. We recommend avalue of 20° above your working temperatureto provide protection for your workload.To Operate the Controller as aSingle Setpoint Controller1. Switch the circuit breaker to the “ON”position. The setpoint temperaturepresently set in the controller willappear in the lower display. (Theupper display indicates the actualchamber temperature.)2. To change the setpoint, press the UPor DOWN button until the desired set-point value is displayed; then releasethe button.3. The furnace will begin to heat if thenew setpoint temperature is higherthan the present chamber tempera-ture.Programming the ControllerThe controller is capable of varying tempera-ture or process value with time through pro-gramming. A program is stored as a series ofsegments and can be run once, repeated aset number of times or run continuously. Tocreate a customized program using the con-troller parameters listed under “Controller8 SEGMENT & 4 X16 S EGMENT PROGRAMMABLE MODELS W/OTP