3 heater/stirrer programming- con’t – C.B.S. Scientific TTGEK-2401-220 User Manual

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If a program is stopped or paused, the Controller will control temperature using the set point value that was active when

the program was interrupted.
NOTE: If you select the Temperature Trend display while running a program, that display will remain on screen until the

ESC Button is pressed.
End of Program — Once the selected program has run, “Completed” will appear in the lower left of the Run Program

display. The Controller will keep the bath liquid at the last temperature set point until a new program is started or Run

Program has been exited and a new set point entered.
Exiting Run Program — Once a program has been completed, “Completed” will appear at the lower left of the Run

Program sub-menu. Highlight “Completed” and then press the Select/Set Knob. “Start” will appear. You may now return to

manual set point control, run another program, or turn Controller power Off.
Loss of Power — If the Controller is placed in Standby (front panel power turned Off), the Controller will resume running

the program when Controller power is restored. If main power (rear panel circuit breaker/power switch) is turned Off or

electrical power is lost while a program is running, paused, or completed (but not exited), the appropriate Fault message

will be displayed upon restoration of power (see Section 5.13 – Controller Messages). Press the ESC Button to clear the

Fault message; the Controller will resume operation at the set point at which power was lost. If the program was running

or paused, it will not resume. If it was completed, it must be exited before a new program can be run.

3.3.4

Setting Preferences

The Preferences sub-menu allows you program global preferences regarding instrument operation.

Readout: This is the number of decimal places to which temperatures will be displayed (0, 1, 2, or 3).

Units: This is the unit in which temperatures will be displayed (°C or °F)

Sound: This is the volume level for the unit’s audible signal. When it is selected, the volume of the audible signal

changes as the Select/Set Knob is rotated. You must press the Select/Set Knob to accept the displayed volume value;

if you press the ESC Button or allow the display to timeout without pressing the Select/Set Knob, the sound level will

remain where it was previously set.

Language: This is the language used for displays. When this is selected, a sub-menu appears with the available

languages.

Program: This menu item appears only on the Programmable Controller. It is used to select whether programs are run

using Time or Temperature as the priority.
When Time is selected, the program begins running when the bath temperature reaches the programmed set point for

step one and continues until the total programmed period of time has elapsed. The set point target for any given step

(except step one) may or may not be reached before the program advances to the next step.

When Temperature is selected as the priority, the program begins running when the bath temperature reaches within

±0.1°C of the programmed set point for step one. Each subsequent step runs until the programmed set point for that step

is reached, within ±0.1°C, regardless of how much time has elapsed.

Display Temperature Filter: This sets the rate at which the temperature display is updated. The default setting is 4.

Higher settings will result in less display fluctuation; a setting of 0 displays real-time temperature probe data. The display

temperature filter can be set from 0 to 60.

3.3 Heater/Stirrer Programming- con’t.

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