Cole Parmer 05017-10, Manual

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When the oven reaches a stable operating condition, the display
temperature should indicate the actual center chamber temperature
(±2.0°C). In the event a more accurate display reading is needed, the offset
parameter, located in the MAIN MENU, can compensate for the error.
To enter an offset value, press the MENU key until the upper display
window shows ADJT (adjust temperature) then press UP/DOWN arrow
keys to enter an offset for the display temperature. Press the MENU key 5
times to return to the default display, or wait for 2 seconds and control
will shift automatically.
EXAMPLE: The oven is temperature is set for 200°C. After it has reached
a stable state (usually 2-1/2 hours for 200°C) the actual temperature of the
oven center, as read by a certified thermometer, is 203°C. The oven
display shows 200°C. Entering a +3 for the ADJT parameter will move the
display to agree with the actual oven temperature.
Note Adjusting the offset only changes the display temperature. It does not
alter the controller operation.
The vacuum display can be adjusted in the same way. In the event the
displayed chamber pressure is not accurate, press the MENU key until the
upper display window shows ADJP (adjust pressure). Use the UP/DOWN
keys to enter the desired offset. Press the MENU key four and control will
shift automatically. The displayed chamber pressure will be updated with
the offset value.
To set the time and day, press the MENU key until the upper display
shows TSET (time set). Press the SET key and use the UP/DOWN arrow
keys to adjust the hour of the day. When the current hour is displayed
enter it by pressing the SET key again. Use the UP/DOWN arrow keys to
adjust the minutes. When the correct minutes are displayed, press the SET
key. Finally, days of the week can also be adjusted by pressing the
UP/DOWN arrow keys. Press the SET key again to enter the day of the
week.
Vacuum Oven 6-7 Cole-Parmer
Section 6
Operation
Temperature/Pressure
Offsets
Setting the Time and Day