GE Intellix BMT 330 Installation Manual page 34

Figure 5-35: Cabinet - external top right - GPS antenna
If no suitable place is found (and no GPS antenna has been installed) or the GPS signal is
lost during operation, the product will use an internal clock to time stamp events and
data. This clock is continuously synchronised with the GPS time when available. If no GPS
is available at power up, the product will use the time stamp of the most recent event or
data to use as the current time. As soon as the GPS is available, the product will
synchronise back to the GPS time. If communication is established with the product and
no GPS synchronisation has occurred, the user must synchronise the Intellix™ BMT 330
time to the PC's time. The time will be lost if the product is switched off. Refer to the
'Device Information' section in the Intellix™ BMT 330 User Manual.
Alarm relays
Three alarm relays are provided on a small PCB as shown schematically in Figure 5-36
and are wired to connector blocks on the DIN rail as shown in Figure 5-37.
Figure 5-36: Relay board (schematic)
These relays can be used to drive a hardware alarm e.g. control room light, klaxon etc.
The precise alarm conditions to activate each of the relays is configured using the
Intellix™ BMT 330 Setup Software.
MA-017 – BMT 330 Installation Manual – Rev 3.3
– internal top-right -
ferromagnetic side plate
Figure 5-37: Relay connections (right)
and Mains (left)
4-Mar-22 Page 34 of 69