MRC 1425, Инструкция по эксплуатации, Страница: 11 / 21

11
SECTION 7
OPERATION
7.1 Power Supply: Connect the service cord to a grounded outlet and switch unit to
the ON position. If supplied with a detachable cord set, plug the female end into
the inlet of the unit and the male end into the supply. Assure that units requiring a
fuse have a fuse installed. This fuse may be at the inlet or part of the cord set male
plug.
7.2 Turn the Circuit Breaker/Fuse control to its maximum position (clockwise).
7.3 Place a certified reference thermometer inside the chamber where it can be easily
viewed through the window. Vacuum down the chamber as described in Section
5.0
7.4 Setting Main Temperature: To enter set point mode on the control, press either
the UP or DOWN arrow pad one time. The digital display will start to blink from
bright to dim. While blinking, the digital display is showing the set point. To change
the set point, use the Up or Down arrow pads. If the arrow pads are not pressed for
five (5) seconds, the display will stop blinking and will read the temperature of the
unit. The Heating Light Cycle light will come on indicating that the oven is heating.
Allow the unit several hours to reach and maintain set point
7.5 Calibrating the Main Temperature: It is recommended that calibration is done
once the unit is installed in its working environment and has been stabile at set
point for several hours. Compare the reading of the reference thermometer with
the digital display. If there is an unacceptable difference, put the display into
calibrate mode by pressing both the UP and DOWN buttons at the same time until
the decimal points start to blink. While blinking, the display can be changed to
match the reference thermometer by pushing the UP or DOWN buttons until the
display reads the correct value. If no buttons are pushed for five (5) seconds the
display will revert back to reading the temperature in the chamber. Allow for the
oven temperature to stabilize again and recalibrate if necessary.
7.6 Setting the Circuit Breaker/Fuse: Once the Main Temperature is stabile at set
point, set the Circuit Breaker/Fuse control. Previously set to its maximum position,
turn the control knob counterclockwise just until the OVER TEMPERATURE LIGHT
comes on. Next turn the control knob clockwise just until the light goes off. Then
turn the control knob clockwise two (2) minor scale divisions on the dial past the
point where the light went out. The Circuit Breaker/Fuse control will now be set
approximately 10
°
C above the Main temperature set point.