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P/N OCS, Oven Control System
The Oven Control System (OCS) executes a pre-programmed temperature profile entered by the operator or taken from a standard library of cures (64 total). While executing, the OCS continually monitors all of the active temperature measurement points and vacuum points for actual behavior as compared to the preset profile. In the event of a severe deviation from the profile the OCS will signal the operator with a siren and visual display alarm. The OCS is modularized to allow the monitoring of several items curing within the oven at the same time. For instance, each block of eight thermocouples could be connected to a dedicated block of eight thermocouples situated in different corners of a large oven. The display can be segmented to display the details of each of the items in the oven. Control of the oven is accomplished by using the median (average of the hottest and coldest Tcs), the coldest Tc or the hottest Tc out of the entire set of configured Tcs to control the oven temperature. The control outputs of the controller will be the same voltage as the input voltage to the OCS. If 110 VAC based control is desired, power the OCS with 110 VAC.
15.21" x 13.21" x 7.09"
110-120 VAC 50/60 hertz and 220-240 VAC 50/60 hertz single phase
The OCS fits inside a fiberglass enclosure with external dimensions of 15.21" x 13.21" x 7.09". The power/port connectors extend slightly beyond the enclosure for an overall footprint of 16.5" x 13.5" x 7.5".
The OCS operates on power sources of 110-120 VAC 50/60 hertz and 220-240 VAC 50/60 hertz single phase. The unit contains a 30 amp circuit breaker.
The OCS is configurable from a minimum of eight (8) measurement points up to a maximum of sixty-four (64) measurement points in increments of eight. Each group of eight may be configured as thermocouple type J (0-760 deg. C), K (0-1000 deg. C), T (-100-400 deg. C), E (0-1000 deg. C), R (500-1750 deg. C), S (500-1750 deg.), B (500-1800 deg. C), N (-270-1300 deg. C) or C (0-2320 deg. C). By default, the OCS is installed with J thermocouples and can operate from 0 to 1000 degrees Fahrenheit (760 deg. C). Temperature point connections are made along the right and left sides of the OCS. Depending on the type of temperature measurement devices used, the interconnection blocks are configured to match.
All vacuum ports are located on the top edge of the enclosure. Vacuum ports are installed in pairs to allow the OCS to monitor the pressure as well allowing the operator to attach an external gauge or other external monitoring device. Each pair is internally mounted to a shared manifold where the OCS independently measures the pressure in each configured manifold.
The display is a two color, text and graphics display with 320 x 240 pixels. The display provides the operator interface to the OCS. The display can be removed from the enclosure and mounted into an external housing up to 6 feet away from the enclosure (this is useful for, cabinet inside a cabinet situations, where the display needs to be visible at the outermost cabinet)
The keypad is a standard 4 row by 4 column keypad. The keypad can be removed from the enclosure and installed up to 6 feet away from the body of the enclosure.
The OCS provides for open temperature sensor, high temperature and low temperature alarms for each measurement point. All installed vacuum ports are independently monitored for a minimum vacuum setting. In the event of an alarm, a siren will sound until the offending alarm is acknowledged by the operator.
The OCS has two solid state relay power outputs. Typically, one output is used to control the heating element(s) and the other is used to control the cooling element(s) of the oven. Both outputs run at the same voltage as the input power to the controller; either 110 VAC or 220 VAC. The outputs can withstand a maximum voltage and current up to 480 VAC/40 amps. When the outputs are configured as 1 heating and 1 cooling the controller prevents both inputs being active simultaneously
The OCS is outfitted with two series connected "door" switches. These outputs are intended for use in cutting off the dangerous, heating/cooling elements of the oven whenever the door to the oven is opened.
The OCS is supported by a three years warranty.
WichiTech Industries, Inc.
1120 North Charles Street, Suite 103, Baltimore, MD 21201
Toll Free: 1.800.776.4277, Phone: 410.244.1966, Fax: 410.244.1968
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