Tutco SureHeat Serpentine II, Руководство по эксплуатации

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PROPER CONTROL SETUP
• TUTCO SureHeat process air heaters contain high watt-density elements and must be
controlled carefully to prevent element failure.
• Sudden applications of power can damage heater and void warranty.
• Following each of these guidelines will help to ensure safe heater operation.
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Start the heater with a 0º (F or C) Set-Point (SV): This will ensure the output signal to the
power control starts off low (0% output) before the contactor is engaged and immediately applying
full power.
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Use proper closed loop control (PID) settings. TUTCO SureHeat typically uses the following
PID; Proportional (P), Integral (I) and Derivative (D); settings as a starting point for stable temperature
control. Some manual tuning may be required for more precise control.
Description: Range: Default:
(P) roportional 90-250 131
(I) ntegral 8-20 9
(D) erivative 0-2 2
Scan/Cycle Rate < 500mSec 200mSec
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Incorporate a Ramp Rate for the start-up of the heater. The slower you ramp to your final
set-point the less overshoot and problems you will have. Typically TUTCO SureHeat heaters should
be ramped up over a period of several minutes. The following are recommended ramp rates based
on final temperature. (For custom ramp rates consult with factory)
Set-Point Temperature Degrees per Minute
Up to 600ºF (up to 300ºC) 360ºF (150ºC)
601-1000ºF (301-500ºC) 240ºF (100ºC)
1001-1400ºF (501-760ºC) 120ºF (50ºC)
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