Nova-Tech Digi-Sense Termperature Controller RS (Standard Models) - Manual (Page 17)

14
SENSOR OFFSET
CAL
±±±±±
XX.X XXX.X °F
FIGURE 19. SENSOR OFFSET CAL
NOTE:
Calibration can also be done using an ice bath or boiling water
and adjusting the offset until 32.0 °F or 212 °F is displayed.
Over Temp Stop
1. Over temp stop temperature, a safety feature, is added to the setpoint
(SP) temperature. If the PV temperature exceeds this amount, the tem-
perature controller will stop. Over temp stop does not operate if the
COOL control action is selected. Refer to Figure 20.
OVER TEMP. STOP
XX °F ABOVE SP
FIGURE 20. OVERTEMP SCREEN
2. To change the Overtemp value, use the arrow keys. After the value has
been set, press the MENU key to advance to the Loop Break Stop Screen.
Loop Break Stop
Loop break stop, a safety feature, is designed to stop the temperature
controller if the heater output is on for the amount of time set in Loop Break
Stop and the PV temperature does not increase more than 1.0 °F. If the
COOL control action is selected, it is stopped if the PV temperature does not
decrease more than 1.0°F. Refer to Figure 21.
LOOP BREAK STOP
XXX.X MINUTES
FIGURE 21. LOOP BREAK STOP SCREEN