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C4 Manual Rev 7.5.2

7.7.4 GT, GTF Go To Temperature

This command instructs the controller to control to the setpoint specified in the

command. Bit 4 (setpoint reached) of the Status Byte is set when the chamber or

platform has stabilized within .1 degree of the setpoint for 15 seconds. The

command syntax is:

GT<space>[-]ttt.t<CR><LF> Celsius mode

GTF<space>[-]ttt.t<CR><LF> Fahrenheit mode

Example:

GT 125<CR><LF> Celsius mode

GTF 180<CR><LF> Fahrenheit mode

7.7.5 RA, RAF Ramp to Temperature

This command executes a ramping function. The operands of the command

include a ramp temperature and a ramp time. The controller will execute a linear

ramp from the current temperature to the specified temperature over the specified

time period. Bit 4 (setpoint reached) of the Status Byte is set when the chamber

or platform has stabilized within .1 degree of the setpoint for 15 seconds. The

command syntax is:

RA<space>[-]ttt.t<space>hh<space>mm<CR><LF> Celsius mode

RAF<space>[-]ttt.t<space>hh<space>mm<CR><LF> Fahrenheit mode

Where ttt.t is the final setpoint temperature

hh are hours to be used for the ramp

mm are the minutes to be used for the ramp

Example:

RA -55 2 15<CR><LF> Celsius mode

RAF -55 2 15<CR><LF> Fahrenheit mode

Ramps to -55

/ over 2 hours and 15 minutes

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Sigma C4 Bedienungsanleitung Seite 73