Set Access Code; Clear High Stage Alarm; Display Temperature - Thermo Scientific HERAfreeze HFU Series Operating And Maintenance Manual

Display Temperature

Clear High Stage Alarm

(-86C units only)

Set Access Code

Thermo Scientific
This function, only available on freezers with the optional sample probe,
allows the user to select which temperature is displayed in the temperature
display window. The options are CONTROL or SAMPLE.
1. Press the Mode key until the Configuration indicator lights.
2. Press the right arrow until DISP CONTROL or DISP SAMPLE is
displayed in the message center.
3. Press up/down arrow to toggle between the two display selections.
4. Press Enter to save.
If control probe is selected, the temperature display will be on
continuously. If sample probe is selected, the temperature display will be
preceded with a letter 'S'.
Should a high stage alarm have occurred, it may become necessary to clear
the alarm condition after the condition has been corrected.
1. Press the Mode key until the Configuration indicator lights.
2. Press the right arrow until CLR HS ALARM is displayed in the
message center.
3. Press Enter to clear the alarm.
To set the Access Code:
1. Press the Mode key until the Configuration indicator lights.
2. Press the right arrow until "SET ACC CODE" is displayed in the
message center.
3. Press Enter.
4. The message center will display ACC CODE = 000. Press the up or
down arrow key until the desired access code is displayed (000 - 999).
Press the left or right arrow key to select digit 1, 2, 3.
Note The left and right arrow keys are used to move from the first through
the third digits within the access code.
5. Press Enter to save the setting
6. Press the Mode key until the Run indicator lights.A 3-digit Access
Code can be entered to avoid unauthorized personnel from changing
the set points, calibration, or configuration. A setting of 000 will
bypass the access code. The factory setting is 000.
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Section 3
Configuration
HFC Series 3-3