Alarm Contact Line Fault; Gas Service Connections; Data Connection; Remote Audible Warning Devices - BeaconMedaes Medipoint 125 Operation And Maintenance Instructions

Medical Gas Central Alarm - Medipoint 125 Digital Alarm
Communication terminals IN [A][B], OUT [A][B] and
Screen [S] are provided to link the input alarm to repeater
units. End of line resister dip switches are mounted on
the PCB to be set to ON for the first and last alarm in the
network chain.
1.6.3 Standby battery
The power supply PCB also contains a standby battery
(see figure 8), battery charging and power fail detection
circuits. The battery provides power for both the SYSTEM
ALARM indication and the audible warning in the event
of an electrical power failure. The battery is fully charged
after 72 hours and provides sufficient power to operate
the specific alarm indications for a minimum of 4 hours.
The battery is expected to have a minimum 5 year life.
1.7

Alarm contact line fault

Integrity of the interconnecting wiring and pressure
sensors are constantly monitored by the fault detection
circuits. The fault detection circuit is designed to detect
an wiring fault or in the data transmission network as
well as connections to source equipment. In the event
of a line fault the Power LED remains illuminated, the
SYSTEM ALARM indicator will illuminate (flashing) and
the audible warning sounds. The affected gas service
badge status bar will turn red (steady). When a line
contact fault is detected the flash rate of the affected
gas fault slows to half speed when the TEST switch is
operated.
1.8

Gas service connections

The 5 gas service connections have 5 terminals each. See
table 2 for details for standard options. Each gas service
and fault legend is also fully customisable through the
on screen setup menus.
Figure 9 - Source equipment connection, example air
plant.
C
Alarm Outputs
MP125D
Channel 1
1 2 3 4
Air Plant
TABLE 2: GAS SERVICE CONNECTION TERMINALS
Equipment
Fault Type
Type
Common
Plant Fault
Air Plant Plant Emergency
Reserve low
Pressure Fault
Common
Plant Fault
Vacuum
Plant Emergency
Plant
Not Used
Pressure Fault
Common
Change Cylinders
Manifolds Change Immediately
Reserve low
Pressure Fault
Common
Liquid Low
VIE Fill Immediately
Reserve low
Pressure Fault
1.9

Data Connection

The power supply PCB incorporates a data connection
that allows slave central alarm to be connected with data
cable. These slave panels will repeat the signals received
from the master panel, allowing additional panels to
be installed for monitoring throughout the hospital, or
inside operating theatre panels (see figure 8).
1.10 Remote audible warning
devices
Remote audible warning devices may be fitted in
locations where warnings are necessary and alarm
panels are not fitted. Remote audible warning devices
are housed in a surface mounted enclosure containing a
warning buzzer. The audible warning device is connected
by input cable to the power supply PCB within the alarm
panel (alarm terminals AUD+ and AUD-) (see figure
8). When the alarm panel audible sounds the remote
audible also sounds. A maximum of four remote audible
warning devices can be fitted to an alarm panel and the
total cable length should not exceed 50 metres.
11
C 1 2 3 4
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