Turning The Heater Off; Navigating The Front Panel; Overview - THORLABS TC200 User Manual

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Temperature Controller
5.5.

Turning the Heater Off

When necessary, the heater output can be turned off by either pressing and releasing the ENABLE keypad
or pressing the POWER switch to the OFF ( 0 ) position, which will turn off the entire unit.
The heater will also turn off immediately if a shorted or open temperature sensor is detected. In that case,
!SENSOR! will be displayed on the LCD screen.
Whenever the unit is ON and the heater is not enabled, the status will be indicated as "DISABLED" on the
LCD and the HEATER ON indicator will be turned off.
5.6.

Navigating the Front Panel

5.6.1. Overview

The front panel contains six keypads that can be used for various functions depending on what menu screen
is actively displayed.
The Main Display screen displays the selected temperature sensor, the basic operating mode (NORMAL
or CYCLE), the current temperature set-point, the current actual temperature, and various status messages
such as ENABLED, DISABLED, !TMAX!, and !SENSOR! alarms.
There are five MODE screens: PID parameters, Sensor Select, TMAX/PMAX values, Units Display
(°C, °F, or K), and NORMAL vs. CYCLE Mode.
There is a sixth sub-menu for programming the CYCLE Mode parameters: Stop Temp, Ramp Time, and
Hold Time.
Use the MODE keypad to access the Mode screens.
While a menu is displayed, use the SELECT keypad to move the flashing cursor to the various selection
options.
Pressing the ENTER keypad while in the Main Display screen and in NORMAL mode has no effect.
Pressing the ENTER keypad while in the Main Display screen and CYCLE Mode will PAUSE the cycle.
See CYCLE Mode on page 13 for more details.
Pressing the ENTER keypad while in a Mode menu screen will accept and save the option that corresponds
to the flashing cursor and advance you to the next menu screen or back to the MAIN screen, depending on
the situation.
Use the UP and DOWN keypads to change the set-point temperature while in the Main screen.
Use the UP and DOWN keypads to change numerical options while in any of the Mode screens.
Pressing the MODE keypad at any time while in a mode menu will do one of the following:
o
If you are in the PID Mode screen, pressing the MODE keypad will advance to the Sensor Select
menu without changing any of the current PID values.
o
If you are in the Sensor Select screen, pressing the MODE keypad will advance to the TMAX/PMAX
Mode screen without changing the sensor selection.
o
If you are in the TMAX/PMAX Mode screen, pressing the MODE key will advance to the Display
Units Selection screen without changing the units.
Page 8
Chapter 5: Stand-Alone Operation
TTN051989-D02

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