Eppendorf New Brunswick -86 °C Freezers G - Manual (Page 22)

HEF® and G -86 °C Freezers — Operating manual
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Abb. 4: Upright freezers switch location
Fig. 4: Upright freezers switch location
Abb. 5: Chest freezers switch location
Fig. 5: Chest freezers switch location
6.1.3 Alarm/battery activation
The equipment is delivered with the battery deactivated. The Power Fail alarm is activated by the
battery rocker switch within the lockable panel, which is located at the bottom right-hand corner.
The switch is labelled I (ON) and O (OFF) (see Fig. 4 on p. 22) and (Fig. 5 on p. 22).
 To activate the alarm, place the battery switch in the I position.
 After activating the alarm, test its operation by pressing the ALARM TEST/MUTE key on the
display.
The audible alarm should sound.
The ALARM TEST/MUTE key also tests the LED lamps. All of the LEDs should light up together
when the button is pressed.
1 Battery switch 2 On/Off circuit breaker switch
1 Battery switch 2 On/Off circuit breaker switch
1
2
1
2
Hint!
The compressors will not operate for approximately three minutes after connection of the mains/
power supply, because there is an automatic delay device in the circuit. Temperature and alarm
settings can be adjusted immediately.
Hint!
Failure to turn on the battery switch may lead to a discharged battery, low battery alarm
indication, and/or a disabled alarm system.
Hint!
Pull down time to -86 °C will be dependent on the freezer size and model (see Specifications on
p. 36). The alarm will sound every 30 minutes until the temperature setpoint is reached. Use the
ALARM TEST/MUTE key to mute the alarm during this initial pull-down period.
6
Op
eration