User Manual

7
Programming and Running a Sequence
Entering Data for the States
Heatingandcoolingsequencesarecontrolledbystates.State1istheidle-mode
(starting)temperature,withnoramp.States2to8areprogrammablebyramprate,
end temperature, and hold time, for as long as the state is active. States are observed in
order, while any state indicated as inactive is skipped. States may be turned on and off
by electing the states active (Yes) or inactive (No). When the last active state hold time is
completed,thefanwillcoolthecolumntothestate1temperatureandholdidleuntilthe
next “start” command.
Viewing the Current States
Enter the column heating state interface by typing SS<enter> (for “show states”). A new
unit may show these values:
State Active Rate Temp Time
1 Yes 0 0 0
2 Yes 0 0 0
3 No 0 0 0
4 No 0 0 0
5 No 0 0 0
6 No 0 0 0
7 No 0 0 0
8 No 0 0 0
Editing States to Create a Program
To make a change to a state, enter the command SS[n], where n is the number of the
state to be changed. Settings are changed by typing the new value after the colon, fol-
lowed by <enter>.
Foranexample,setupaprogramthatstartswiththecolumnat25°C,holdfor
5seconds(noramp).Thetemperaturewillrampto100°Cat100°C/minandholdfor
10seconds,followedbyarampto200°Cat200°C/min,holdingfor30seconds.Inanal
step,thecolumnwillrampto300°Cat200°C/minandholdfor25seconds.
To set up the example:
1. TypeSS1<enter> to bring up the following:
 :ss1
 Setpoint(0):
 Holdtime,seconds(0):
2. Enterthevaluesforstate1asbelow,then<enter>.
 :ss1
 Setpoint(0):25
 Holdtime,seconds(0):5
NOTE:Thestate1temperaturesetpointmustbeatleast5°Cabovethecolumnambient
environment.