Local Lockout Feature; Stick-On Strips For Preset Buttons; Auto-Refrigeration Operation - PolyScience 300-048 Manual De Operación

5.9

Local Lockout Feature

This feature enables the user to lock all controls on the controller. While the feature is activated, the
unit will remain running at the current settings.
To activate the local lockout feature, press and hold the Select/Set Knob for 10 seconds. Once
locked, the screen will read LLo. When locked, the setpoint decimal point will not flash as usual.
Press and hold the Select/Set Knob again for 10 seconds to unlock the controls. Once unlocked, the
screen will read CAn.
5.10

Stick-on Strips for Preset Buttons

The Standard Controller is supplied with two stick-on
strips that can be applied beneath the Preset Buttons.
These strips are removable and can be reapplied.
The user can write the set point temperature associated
with each Preset Button on this strip. The use of an
erasable medium, such as dry erase marker or flair tip
pen is recommended. The former can be wiped off with a
dry cloth or tissue; the later can usually be removed with
simple glass cleaner and a cloth or tissue. Do not use a
permanent marker or ballpoint pen. Always do an ink
test before writing on these strips.
5.11

Auto-Refrigeration Operation

Auto-Refrigeration selects the temperature at which refrigeration is activated. For most applications,
a set point 15°C above room temperature is recommended.
Cool Command Refrigeration
Refrigerating/Heating Circulators with 13 and 28 liter reservoirs feature the advanced Cool
Command™ modulating refrigeration control system. Cool Command Auto-Refrigeration has a
broader range of control — from +20°C to 85°C — than conventional refrigeration. Additionally, it
allows the refrigeration system to turn on at a fluid temperature up to 150°C when the temperature
set point is changed to or below the Auto-Refrigeration set point (85° C maximum). As a result, bath
fluids cool more quickly.
Conventional refrigeration
Refrigerating/Heating Circulators with 6 liter reservoirs use a conventional refrigeration system. The
Auto-Refrigeration control range on these is from +20°C to 70°C. The refrigeration system will turn
on when the bath fluid temperature is at or above the Auto-Refrigeration set point (70° C maximum).
Setting the Auto-Refrigeration Temperature:
Press the P2 and P3 Buttons simultaneously and repeat until the current Auto-Refrigeration set point
temperature appears on the display (Axxx).
To change the displayed value, press and turn the Select/Set Knob until the desired temperature is
displayed. Press the Select/Set Knob a second time to enter the value and return to normal
operation.
The factory default Auto-Refrigeration value is 40°C.
The stick-on strip fits beneath the
controller's Preset Buttons. It is
removable and reapplicable.