Ramp & Soak provides users with the flexibility to slowly bring the Process Variable (PV) to the desired setpoint. Ramp & Soak values are specified in HH.MM format. The Ramp value indicates the time specified to bring the process variable to Setpoint 1 (SP1). Once the set point is reached, the PID takes over and the Process Variable will be controlled at the desired set point indefinitely. If Soak is enabled, PID will control the Process Variable at the specified Setpoint for the duration of Soak time and then will turn off Output 1. To start a new Ramp/Soak cycle, reset the instrument by pressing a and then c button.
An active Ramp/Soak will change SP1 one degree above the PV and will cause the most significant digit to blink. The SP1 will be incremented by one degree until it reaches the original SP1. The minimum Ramp time must be at least twice the time that it will take the PV to reach the Setpoint Value (SV) with OUT 1 fully ON.
RAMP VALUE SUBMENU:
Press d 10) Display flashes 1st digit of previous stored “Ramp Value”. Press b & c 11) Press b and c buttons to enter a new “Ramp Value”. Press d 12) Display shows STRD stored message momentarily and then
advances to “Soak Value” Submenu.
SOAK VALUE SUBMENU:
Press d 13) Display flashes 1st digit of previous stored “Soak Value”. Press b & c 14) Press b and c buttons to enter a new “Soak Value”. Press d 15) Display shows STRD stored message and advances to the
ID ID Code Menu.
The Ramp and Soak time is 00:00 to 99:59 i.e. HH.MM. (from zero to 99 hours and 59 minutes) During Ramp & Soak do not perform any operations or settings before first stopping it. Any alarms or other output are disabled during this time. To stop Ramp & Soak first put instrument into Standby Mode, then go to Ramp & Soak Menu and disable it.
42
