Over-Temperature Set Point - Osp - Barnstead SUPER-NUOVA HP133420-33 Operation Manual And Parts List

S C
ERVICE AND ALIBRATION
Note
For most routines, the POWER key
can be used to return to a previous
menu if desired. Also, many of the
options can be checked to see how
the unit is configured by selecting
the feature and observing which
menu item is displayed. The unit will
always display the current configura-
tion first.
22
Over-temperature Set Point -
OSP
This option is only available for units that have heating
functionality. The Over-temperature Set Point is the set
point of the independent temperature control. The pur-
pose of the control is to limit the top temperature of the
element independently of the standard heating control.
This is helpful if there is a failure of the main control that
would cause the top to heat excessively. The adjustment
for this control is done at the front edge of the unit using a
small straight blade screwdriver to make the adjustment.
Typically the set point will be adjustable from 60 to 400°C
in 10°C increments.
The Over-temperature Set Point can be viewed with this
menu option. To do so, follow the instructions given
below:
1. Plug the unit into the appropriate power, but do
not turn it on (displays should be blank, unless
Hot Top Warning System is indicating a hot sur-
face), enter the Service Menu by pressing and
holding the POWER key. After about 3 seconds
a single beep will be heard and you may
remove your finger from the POWER key. The
display will change to OSP.
2. Press the SET key under the HEAT display to
begin viewing the current setting. The set point
may be changed with a screwdriver and the dis-
play will update accordingly.
3. When setting and/or viewing is complete, the
POWER key can be pressed to return to the
previous menu.