Cincinnati Sub-Zero ZP Series - Start-Up Instruction Summary; Summary for Step-By-Step Set-Point Operation

OPERATING INSTRUCTIONS
45
START-UP INSTRUCTION SUMMARY (WATLOW F4
CONTROLLER)
The control section, illustrated in Figure 3-2, is composed of a Watlow F4
Controller. Specifications for the Controller may be found in the Watlow F4
User's manuals located on the digital media included in this binder.
1. Turn the power switch ON.
2. Load your test sample into the chamber.
3. Enter the Single Set-Point Operation Temperature.
4. Enter the Single Set-Point Operation Humidity if applicable.
SUMMARY FOR STEP-BY-STEP SET-POINT OPERATION
These instructions will enable the operator to use the Watlow F4
Programmer/Controller in a single set-point operation. The User's Manual for
the Watlow F4 Programmer/Controller should be reviewed for more detailed
operation.
Single Set-Point Operation - Temperature
1. When Turning the Main Power Switch ON
a. This will supply power to the Watlow F4 Controller, Product Hi/Low
Limit and chamber light. The Watlow F4 controller will perform a 5-10
second start-up self-test. The upper display will be blank, and the lower
display will show Watlow F4 and current software revision. Wait for the
completion of the self-test.
2. When operating the chamber, the PGM/OFF/ON switch determines if event
No. 1 must be on to run the chamber.
a. ON
The PGM/OFF/ON switch should be set in this position when running
single set-points or when operating in a program mode without using
events to turn on-off option features.
b. PGM
The PGM/OFF/ON switch must be set in this position when running a
program profile where events are used to turn features on and off.
3. Use the arrow keys to navigate through the lower display and place the
arrow cursor on setpoint 1.
a. Use the

right arrow key to enter the setpoint field.
b. Use the

up and

down arrow keys to change the setpoint
c. Use the

left or

right arrow keys to exit the setpoint field.
The following start-up
instructions are written for
the F4 controller. For
optional controller, please
refer to Specific Instructions
in your controller manual.
NOTE
Switch must be on manual
mode for single set-point
operation.
NOTE
NOTE
Humidity performance will
be affected if live loads are
placed in the chamber
when trying to achieve
certain humidity levels.
When running at high
humidity levels for an
extended period of time,
the tip of the humidity
sensor can become
saturated, resulting in
erroneous readings. To
correct this condition, it is
recommended that the tip
be dried out by turning the
humidity system off and
raising the temperature to
250ºF (121.1°C) high temp
for 10 minutes. The sensor
accuracy will be restored
by evaporating the water
out of the porous cover
over the sensing element.
NOTE