Eppendorf New Brunswick -86 °C Freezers G - Manual (Page 27)

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HEF® and G -86 °C Freezers — Operating manual
Abb. 6: Upright freezers alarm monitoring socket
Fig. 6: Upright freezers alarm monitoring socket
Abb. 7: Chest freezers alarm monitoring socket
Fig. 7: Chest freezers alarm monitoring socket
The configuration of the socket is shown in (Fig. 8 on p. 28) and (Fig. 9 on p. 28), as viewed from
the rear of the freezer. Within the freezer, the socket is connected to voltage-free contacts rated
at 24 volts, 1 amp. In normal operation, with the mains/power on, pin 1 is connected to pin 2 (N/
C), and in the alarm condition, with mains/power off, pin 1 is connected to pin 3.
The High Temperature Alarm output to the Remote Alarm Monitoring Socket can be programmed
to a set time delay (see Setting the alarm delay on p. 25).
1 RS-485 connector (optional) 2 Alarm monitoring socket
3 Mains/power socket
1 RS-485 connector (optional) 2 Alarm monitoring socket
3 Mains/power socket
1
2
3
1 2 3
NOTICE!
Risk of material damage
 Hazardous voltages must not be connected to the remote alarm socket. Max Rating 24 V 1 A.
6
Oper
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