Shellab SVAC9-2 - Manual (Page 14)

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CONTROL OVERVIEW (CONTINUED)
Main Temperature Controller
The main temperature control is labeled TEMPERATURE SET, and consists of a Watlow EZ-Zone
Controller. The control is provided with a digital display and up / down arrow keys for adjusting the
oven’s temperature set point, performing a calibration, and choosing pages and adjusting
parameter settings while setting up heating profiles.
The EZ1 button is used to launch and abort programmed heating profile (see the Programmed
Operations section ).
The green advance key is used to scroll through parameters lists.
The reset button is used to scroll the display back to the previous page while programing heating
cycles. Pressing the reset button repeatedly with return the display to the home page.
Note: On some older Watlow Controllers the Reset button may be labeled with an infinite ∞ symbol
rather than RESET.
Vacuum Gauge
Labeled VACUUM SET, this is a digital gauge that shows the chamber vacuum level in
measurements of Torr and m/Torr. The gauge display activates automatically when the Main Power
switch is activated.
Note: In the SVAC9-2 vacuum oven, the InstruTech 301 VGC301 Convection Vacuum Gauge
Controller is intended for use as an automatically functioning vacuum gauge and display with
no required user inputs. Users interested in employing the VGC310 for other applications
should obtain a copy of the controller’s user manual from InstruTech, Inc. Other functions
include displaying the chamber vacuum pressure in units other than torr.
Reset Button
The red reset button on the control panel is used to reset two power relays that are disconnected
by the Over Temperature Limit System in the event of its activation, or by power outages. Reset
must be pushed after each OTL interruption of heating or power outage. The button should also be
pushed during the initial setup of the oven.