UF V (E3) 03/2019 Page 40/116
• Temp eratu re unit (chap. 12.2):
Use the arrow buttons to select the desired temperature unit, confirm with the OK button.
• Current date (chap. 12.3), format DD MM YYYY:
Use the arrow buttons to set the day, continue with the OK button.
Use the arrow buttons to set the month, continue with the OK button.
Use the arrow buttons to set the year, confirm with the OK button
• Current time (chap. 12.4), format HH:MM:
Use the arrow buttons to set the hours, continue with the OK button.
Use the arrow buttons to set the minutes, confirm with the OK button
Set the controller to the desired temperature set point (chap. 7) used to operate the freezer.
As long as there is a difference between the actual and set value shown in the display, the
intended operation of the chamber will not be ensured.
7. Temperature set-point entry
Required access level: “User”.
Setting range: 20 °C / 68 °F up to -90 °C / -130 °F
Control range: -40 ºC / -40 ºF up to -86 ºC / -122.8 °F
To set a lower setpoint value for test purposes or for adjustment, you can enter and activate a service
setpoint (chap. 20). This setting is outside the control range and is not intended for normal operation.
Path: Normal display Setpoints Temperature
Press the OK button to enable the setting.
Temperature setting.
The current setting flashes. Enter the desired set-point with the arrow
buttons.
Confirm the entry with the OK button.
With the Back button you can go back to the “Setpoints” submenu and, repeatedly pressing it, to Nor-
mal display.
With safety controller mode “Limit”, adapt the safety controller always when you changed the
temperature set-point. Set the safety controller value by approx. 15 °C above the temperature
set-point (chap. 11).
Recommended setting: safety controller mode “Offset” with safety controller value 15 °C.
Only insert samples into the freezer when it has reached its stable operating state.
Temperature equilibrating time to -80 °C / -112 °F is approx. 6 hours (UF V 500) / approx. 7.5 hours (UF V
700).
DOMINIQUE DUTSCHER SAS
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