4000
Ͳ
LC
Series
D4580880
Ͳ
01
Page
33
of
61
Basic Operation:
To run a profile, press the “Run Profile xx” button on the main screen next to the
desired profile, and follow the prompts.
To run in manual set point mode, press the “Manual Set Point Operation” and
follow the prompts.
User Selectable Profiles:
Factory default temperature profiles are
programmed to control the unit
chamber
temperature to set point and hold at that temperature until the End Profile
button is pressed.
Profile 1:
-80
Û
C Freeze
Profile 2:
-40
Û
C Freeze
Profile 3:
+25
Û
C Thaw
Each of these default profiles is configured to reach the target chamber set-point as
fast as possible, and then maintain that temperature until the user ends the profile.
The unit can also perform controlled rate temperature ramp and soak processes over
the course of several minutes, or several days depending on the product need.
There is also the ability to create profile steps that are determined by an optional
RTD probe inserted into a single product sample.
These three factory programmed profiles can be edited by the customer to suit their
needs.
In addition to the three factory profiles, there are three additional profiles available
for the customer to create any profile that is needed. Each profile may have up to 20
steps.
Pressing the STOP PROFILE button at any time will cancel any process that is
currently running, disable all refrigeration systems, and return the unit to the OFF
state at any time.
Defrosting the Evaporator Coil:
The defrost mode is also available. Navigate from the Home Screen to the Run
Defrost Screen. Pressing the Start Defrost button will start the defrost. The defrost
cycle will continue until the Evaporator Coil r20 °C. The current temperature
of the Evaporator coil will be displayed.
Pressing the Stop Defrost button will terminate the defrost cycle immediately.
A defrost of the evaporator coil is only required after the unit has completed a freeze
cycle at a chamber temperature at or below 5
Û
C, and all product has been removed
from the control space. The purpose of the defrost cycle is to remove any ice buildup
on the surface of the evaporator coil to ensure reliable and consistent unit operation.
