21
2. set the ramp rate,
3. set a new target temperature (command class 5).
The target temperature may be above or below the current temperature; as soon as it is set, the
ramp will begin, up or down, to that new target.
After reaching the target, the controller will hold at that temperature. At any time a new ramp rate
and target temperature can be set to start a new ramp.
Once you are done, set the ramp rate to 0. Otherwise, setting a new target temperature later will
initiate a ramp to that target temperature.
Notes:
The minimum settable ramp rate is 0.01 °C/minute.
For higher ramp settings, the observed rate may be lower than that calculated from RT and RS or
it may be nonlinear over part of the temperature range because the maximum possible rate of
heating or cooling is limited (and dependent on the ramp direction as well as on the
temperature).
When the ramping process is completed the controller will send a response of the form [F1 TT #]
as a notification of the end of the ramp. This response can be blocked at any time by previously
sending the command [F1 TT ‐] (see command class 5).
11.
Heat Exchanger Temperature
[F1 HL ?]
What is the high temperature limit for the heat exchanger?
......[F1 HT 60]
The heat exchanger high temperature limit is 60 ºC.
[F1 HT ?]
What is the current temperature of the heat exchanger?
......[F1 HT 39]
The current heat exchanger temperature is 39 ºC.
[F1 HT +3]
Start periodic heat exchanger temperature reports every 3 seconds.
[F1 HT -]
Stop periodic heat exchanger temperature reports.
12. Cell Changing
These commands will have an effect only for a sample holder with multiple cuvette positions.
[F2 DI]
Device initialize: move to home position.
[F2 PI]
Device initialize: move to home position and reply when
done.
......[F2 DL 1]
Device is finished moving. (Original reply was OK rather than DL 1)
[F2 DL 3]
Device locate: move to position 3. (Device should be
initialized prior to using this command for the first time.)
[F2 PI]
Device initialize: move to home, then to position 1 and reply when
done.
......[F2 DL 1]
Device is in position 1.
