Figure 5 Front Controller Panel - Fluke 7312 User Manual

7 Parts and Controls
Front Panel
7 Parts and Controls
7.1 Front Panel
The following controls and indicators are present on the controller front panel
(see Figure 5 below): (1) the digital LED display, (2) the control buttons, (3)
the bath on/off power switch, (4) the control indicator light, and (5) the cooling
on/off switch.

Figure 5 Front Controller Panel

1. The digital display is an important part of the temperature controller. It dis-
plays the set-point temperature and bath temperature as well as the various
other bath functions, settings, and constants. The display shows the tempera-
tures according to the selected scale units °C or °F.
2. The control buttons (SET, DOWN, UP, and EXIT) are used to set the bath
temperature set-point, access and set other operating parameters, and access
and set bath calibration parameters. A brief description of the functions of the
buttons follows:
SET – Used to display the next parameter in a menu and to set parameters to
the displayed value.
DOWN – Used to decrement the displayed value of parameters.
UP – Used to increment the displayed value.
EXIT – Used to exit from a menu. When the EXIT button is pressed any
changes made to the displayed value are ignored.
3. The on/off switch controls power to the entire bath including the stirring
motor.
4. The control indicator is a two color light emitting diode (LED). This indica-
tor lets the user visually see the ratio of heating to cooling. When the indicator
is red the heater is on, and when it is green the heater is off and the bath is
cooling.
29