Eppendorf New Brunswick -86 °C Freezers Innova U360 - Manual (Page 24)

Innova® U360 -86 °C Freezers — Operating manual
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7. A PASSWORD can be deleted by opening the password alphanumeric selection screen and
pressing the DELETE key, then the SAVE key.
If a USER ID is entered, ALARM ACKNOWLEDGEMENT is automatically activated. If alarm
acknowledgment is not required with the use of a password, this feature may be deactivated in
the USER menu system without affecting password control. Adding or adjusting a PASSWORD
only will not automatically turn on ALARM ACKNOWLEDGEMENT.
Once activated, a single password will lock the entire system and prevent any subsequent
changes to system settings, IDs or passwords without the use of a specific password matched to
a specific USER ID. Each combination of USER ID and PASSWORD is unique (one USER ID
cannot use the PASSWORD of another USER ID to make system changes).
The USER IDs can be viewed at any time. Once a password is set, the USER SCREEN is not
generally accessible, and can only be accessed by a user who has a valid password. Passwords
are never visible to general users. Passwording does not prevent general users from viewing
data on the system at any time, including the alarm log.
6.3.8 Setting the temperature offset
The calibration of the control system is carried out via the ENGINEERING (ENG) screen on the
display. To access the ENG screen, you will be required to enter the engineers’ code (*******).
1. Press the DIAG button, then press the ENG button.
2. Enter ENG code when prompted.
3. Press the left or right buttons on the directional keypad to set the desired temperature offset
values within the range of -10 to +10 °C.
4. Press EXIT to save and return to the main screen.
6.4 Audible alarm battery backup
The alarm system is protected by a battery backup system in the case of power and/or system
failure. The battery is designed to operate the audible alarm and data recording system for up to
24 hours. When a power failure occurs, with the battery switched on, the mains/power failure
audible alarm sounds immediately and the main display shuts off to conserve power.
You can activate the LCD screen by pressing any directional key. When you do, the internal
temperature will be displayed on the screen, which will remain on briefly, then shut down again to
conserve power. Be sure to take note of the following cautions:
The alarm battery backup system does not affect the external alarm monitoring socket. The alarm
socket is designed to operate regardless of the condition or state of the freezer or alarm battery.
The audible alarm should be checked periodically to verify its function:
1. Press the DIAG menu key to enter the diagnostics system.
2. Press and hold the TEST menu key for at least 5 seconds.
3. The audible alarm should sound repeatedly.
4. Press the EXIT menu key to return to the main screen.
Hint!
Take care to note your password somewhere. If a password is forgotten, you must contact a
customer service representative to recover or delete the forgotten password.
NOTICE!
Risk of material damage
 Frequent operation of the display during a mains/power failure will substantially reduce the life
of the alarm battery.
 Opening the freezer door during a mains/power failure will increase the cabinet temperature.
 Failure to turn on the alarm battery switch will disable the audible alarm system and data
recording during a mains/power failure.
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Op
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