Shellab SVAC4-2 - Manual (Page 9)

9
CONTROL PANEL OVERVIEW
SVAC1 (1425) & SVAC1-2 (1425-2) SVAC2 (1445) & SVAC2-2 (1445-2)
SVAC4 (1465) & SVAC4-2 (1465-2)
Watlow EZ-Zone Control
20.0
20.0
RES E T EZ1
EZ2
2
C
CURRENT OVEN CHAMBER
TEMPERATURE
TEMPERATURE SET
POINT (YOUR DESIRED
TEMPERATURE)
INDICATES THAT THE
CONTROLLER IS POWERING THE
OVEN’S HEATER
RAMPING SYMBOL INDICATES
THAT A HEATING PROFILE IS
RUNNING
THE ADVANCE KEY SCROLLS
THROUGH MENUS AND
PARAMETER LISTS
THE DOWN ARROW KEY
ADJUSTS SET POINTS OR
CHANGES PARAMETERS
THE UP ARROW KEY
ADJUSTS SET POINTS
OR CHANGES PARAMETERS
THE RESET KEY
SCROLLS 1 PAGE BACK
THE EASY ZONE KEY 1
INITIATES AND ENDS
HEATING PROFILES
Watlow Controller Details
On some older Watlow
Controllers the Reset
button may be labeled with
an infinite
∞ symbol rather
than RESET.
5.1 POWER SWITCH: This is the main power I/O (On/Off) switch. It must be in the ON position before any
systems are operational.
5.2 MAIN TEMPERATURE CONTROL: Tthe Main Temperature control is a Watlow EZ-Zone Controller consisting
of the digital display and UP/DOWN arrow pads for adjusting set point temperatures and calibration, and four
buttons for setting programs and parameters.
5.3 HEATING LIGHT: This green indicator light is on whenever the MAIN TEMPERATURE CONTROL has
activated the heating elements to reach and maintain set point.
5.4 SET OVER TEMPERATURE: The Over Temperature Limit Control is completely independent of the MAIN
TEMPERATURE CONTROLLER and guards against malfunctions which would allow temperature to rise past
the Temperature set point. Setting adjustments for this control require a flat-edged tool to eliminate accidental
changes. The control has a dial that is marked gradient scale and is adjustable across this scale. If the
chamber temperature esxceeds over the set point, the Set Over Temperature will limit the rise to approximately
10

C above the set point selected.
5.5 OVER TEMPERATURE LIGHT: This red indicator light is on whenever the temperature has exceeded the set
point of the Over Temperature Limit Control and has activated and taken control of the oven. Under normal
operating conditions this pilot light should never be on.
Section 5