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LINEAR STEP CONTROLLERS
CCE Series
Linear Step Controllers
(Up to 32 stages)
TECHNOLOGY
On
large kW custom heaters, a Cristal Controls electronic step power
controller offers the full advantages of both the Cristal Controls
"SCR" and "Step Controller" and can be obtained
with maximum economy.
In this system, normally recommended for precise temperature control on heaters drawing more than 100 Amps, one "SCR" heating stage, usually 25% larger than other heating stages, is proportionally controlled with Cristal Controls "SCR".
The other heating stages are controlled by the electronic step controller. The "SCR" stage automatically fills the gaps between step controlled stages, thus providing fully proportional control over the entire heater kW range.
Advantages
-
This scheme is far more economical than using "SCR" controllers to carry the entire heater load, yet is entirely equivalent in operation.
-
Cristal's Step Controllers range from 2 to 32 steps.
Specifications
Linear Step Controllers |
 |
|
| CCE-4 | 1 SCR modulating step + 4 ON/OFF Steps | |
| CCE-8 | 1 SCR modulating step + 8 ON/OFF Steps | |
| Power supply | 24 VAC | |
| Output steps | 1 Amp Max, 120 VAC Max | |
| Zero SCR | Adjustable | |
| Span Input | Adjustable (Min. 2 ON/OFF Steps + 1 SCR Step Controller | |
| Input Signal | 0-135 Ohms, 0-10 V, 0-5V, 4@20 Ma | |
| Operation Temperature | -40F to +160F (-40C to +72C) | |
| Storage Temperature | -40F to +160F (-40C to +72C) | |
| Dimensions CCE-4 | 190 mm x 55 mm x 30
mm 7-1/2" X 2-3/16" X 1-3/16" |
|
| Dimensions CCE-8 | 223 mm x 105 mm x
30 mm 8" x 4-1/8" x 1-3/16" |
|
| Also Available | Model with FIFO & Duty Cycle (up to 24 cycles on request) | |
| Modulating Stages | Use Triac
(SSR) specifications for modulating stage. For more stage, contact us. |
|
© 2005-2006-2007 Cristal Controls Ltd
Products and specs are subject to
change without notice
Cristal Controls Ltd, 1375 rue Frank-Carrel, Suite 14
Quebec City, (Quebec) Canada G1N 2E7
Tel (418) 681 9590 - Fax (418) 681 7393 - www.cristalcontrols.com