Eppendorf R Series 48R CO2 Incubator - Manual (Page 46)

46
CO48R-0050 Š Galaxy R Series 48 R Personal Size CO
2
Incubator User’s Guide
1. Using the blanking plug as a tool, reinstall the Oxygen Sensor by turning it
clockwise.
NOTE:
The O
2
sensor only needs to be finger tight. Do not over-tighten, as this
will distort the Oxygen Sensor and cause it to malfunction.
2. Reconnect the sensor cable by plugging in the connector (grasp the white connector
body, not the wire leads).
3. Replace the black plastic plug that covers the Oxygen Sensor to reduce heat loss.
8.4 BMS Relay Contact Alarm Option
The BMS (Building Management System) Relay Contact Alarm allows a signal from a
central alarm system to be switched ON or OFF to indicate an alarm condition at the
incubator.
The following alarms would activate the system: over-temperature, under-temperature,
system failure, CO
2
high and CO
2
low.
As an integral option, the alarm can be programmed to indicate when the power fails
(perhaps due to an electrical fault) or is switched off. If the power failure warning is
active, the relay contacts will be reversed (pin 4, which is normally open, becomes
normally closed and pin 6, which is normally closed, becomes normally open). The
alarm will also respond to other types of alarm, depending on the options installed on
the incubator.
The system is connected at the rear of the incubator via a standard 6-pin DIN socket
(see Figure 17 for a detailed look). The matching plug is provided, when the option is
installed, in the accessories bag.
Figure 17: BMS Relay Contact Alarm Socket
1-6 See Table 5 on the following page.
1
2
3
4
5
6