User Manual

8
Programming and Running a Sequence
3. TypeSS2<enter>andtypethevaluesbelowforexamplestate2,followedby<enter>.
 :ss2
Active (Y)? (no change)
 Ramprate,degC/min(0):100
 Setpoint(0):100
 Holdtime,seconds(0):10
3. TypeSS3<enter>andtypethevaluesbelowforexamplestate3,followedby<enter>.
 :ss3
Active (N)? Y
 Ramprate,degC/min(0):200
 Setpoint(0):200
 Holdtime,seconds(0):30
4. TypeSS4<enter>andtypethevaluesbelowforexamplestate4,followedby<enter>.
 :ss4
Active (N)? Y
 Ramprate,degC/min(0):200
 Setpoint(0):300
 Holdtime,seconds(0):25
Always verify that changes were made by repeating the command
to view the current state, or SS<enter> to show all states.
5. TypeSS<enter>.Ifthedatawereenteredcorrectly,thescreenwillreectthefollowing
information (except for the italicized explanatory text).
State Active Rate Temp Time
1 Yes 0 25 5 Start at 25°C, hold for 5 seconds (no ramp in state 1)
2 Yes 100 100 10 Ramp @ 100°C/min to 100°C, hold 10 seconds
3 Yes 200 200 30 Ramp @ 200°C/min to 200°C, hold 30 seconds
4 Yes 200 300 25 Ramp @ 200°C/min to 300°C, hold 25 seconds
5 No 0 0 0 If no other state is active, the fan will automati-
cally come on to cool the column down to the
State1temperature.TheFTCwillhold“Ready”
for the next run. (Refer to the section entitled “Fan
Modes” on page 9.)
6 No 0 0 0
7 No 0 0 0
8 No 0 0 0
NOTE: State parameters are saved when the FTC is powered down. Pushing the RESET
button on the front of the FTC may erase the state parameters.
Setting Equilibration Time
EquilibrationTimedelaysthe“Ready”agforstate1,allowingtimeforthecolumn
temperature to equalize once the temperature has been reached. A “Go” command will
notexecuteuntilthistimehaselapsed.Theequilibrationtimeispresetto5seconds.To
change it:
1. TypeET=n<enter>, where n is the desired equilibration time, in seconds.
2. TypeET<enter> to verify that the change has been executed.