18
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.
