SCP SCIENCE DigiPREP, Service Manual

Page: 16 / 88

SCP SCIENCE
16
KeyPad
Version 1.0
• Digi
PROBE
is not in use but was not returned
to its well.
• An endothermic reaction occurred.
Check Digi
PROBE
or Digi
SET
Dongle
This message occurs when the temperature is not
changing and has not reached the set point.
Possible Causes:
• The Digi
PROBE
is not in the sample.
• The Digi
SET
dongle is not connected.
• The Digi
SET PROBE
is connected but not in
a sample.
Set point Exceeds Sample Boiling Point
These messages occur when the temperature
has not reached the target temperature for an
extended period of time.
Possible Causes:
• The target temperature entered is greater than
the boiling point of the sample.
• The rate of evaporation of the sample is too
high, causing evaporative cooling.
If you wish to boil your samples
at a high rate, control the block
temperature instead of the sample
temperature. Remove the
Digi
PROBE
and install the
Digi
PROBE
dongle.
Temperature Unsteady – Check Digi
PROBE
This message occurs when the temperature
varies too quickly.
Possible Causes:
• The Digi
PROBE
is being moved in and out of
the sample repeatedly.
• The Digi
PROBE
is being moved in and out of
the holding well repeatedly.
• The sample has evaporated.
PREVENTING SAFETY MESSAGES
To avoid receiving safety messages, keep the
following tips in mind:
• When using the Digi
PROBE
, place the tip of the
PROBE
about 1 mm from the bottom of the
digestion vessel.
• Use watch glasses whenever possible.
• Use Digi
TUBE
racks whenever possible, as
they will help insulate the block against
unnecessary heat loss.
• Ensure that all samples are positioned correctly
in the block before leaving the
Digi
PREP
unattended.
• Do not remove the rack while the Digi
PROBE
is in the sample. Remove the
PROBE
fi rst, then
the rack of samples.
• Return the Digi
PROBE
back to its storage well
when not in use.
DISABLING SAFETY MESSAGES
If you wish to operate the controller without
safety messages, you can disable them by
holding down the enter key while powering up
the controller. To re-enable the safety messages,
turn off the controller and then turn the power
back on. Some methodologies have not been
considered in creating safety messages, so it
may be necessary to suspend the safety messages.
NOTE