Grant Instruments Labwise - Manual (Page 15)

30853(1) Page 15 May 2012
4.3. Creating a new program
A new program can be created by selecting New from the File option on the program window
menu. A single segment program of duration 10s and set temperature of 0C is created. The
program parameters are all set to the default values.
4.3.1. Creating program segments
Programs are constructed from a sequence of segments. Segments can be conveniently
added or deleted using the buttons in the segment info box. It is also possible to insert and
delete segments using the segment menu option.
The currently selected segment is indicated in the Segment Info box. The segment flashes
in the graphical display and indicates the Target Temp and the Duration of the segment.
A segment has the following configurable parameters. Some of the parameters are
explained further below:
 Target temperature
 Duration
 Extension
 Pump speed (GP200 & TXF200 only)
 Loop to and repeats
 Relay 1 state
 Relay 2 state (GP200 only)
4.3.1.1.
Segment duration
The duration is the time between the start of the segment and the start of the next segment.
The duration can be entered in seconds (e.g. 600 =10 mins), or in the form 10:00 minutes or
1:10:00 hours by highlighting the existing entry and overtyping a new value using a colon as
separator.
The Target Temp and Duration may be approximately set by positioning the cursor on the
trace over the temperature value for the segment and left-clicking and dragging the segment
end point to a new position using the mouse.