Ratek TH8500 Programmable Immersion Heater Circulator - User Manual
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Page 17 of 28
- Minutes & Seconds
– The segment number to assign to the current parameters :
Profiles 1 thru 4 : 0 – 15 (16 segments)
Profiles 5 thru 7 : 0 – 31 (32 segments)
Profiles 8 and 9 : 0 – 63 (64 segments)
– The segment type. For a traditional ramp/dwell scenario, this parameter is most
commonly set to Ramp or Dwell. The available segment types are :
- Perform a ramp to the temperature set at
- Dwell at the current set point for the period set at
- Jump to a segment specified at
in the same profile
- End the profile
- The final set point to end the profile on for an “end” type segment. This temperature will
be maintained indefinitely at the end of the program until the controller is returned to static mode
or the profile is re-run.
- For “end” type segments, enter the number of times the profile should be
repeated/cycled.
- The target set point in °C for a “ramp” type segment.
- Time duration or ramp rate for a “ramp” type segment, entered in units specified at
- Always set to 0000
- The holdback type indicates how the controller should react if the current temperature
is not in line with the desired ramp. For example, the heating required to achieve a certain ramp
rate in the current water bath may not be achievable :
- Do not use holdback. The unit will ignore any temperature
lag
- Hold the profile if the current temperature falls below the
desired set point by more than the holdback band at
- Hold the profile if the current temperature deviates above the
desired set point by more than the holdback band at
- Hold the profile if the current temperature deviates above
or below the desired set point by more than the holdback band at
– The dwell time for a “dwell” type segment, entered in units specified at
- The segment number to jump to for a “jump” type segment
