Remotely Installed Sensors In Pipeline; Wiring; General Requirements; Wire Type And Size - BeaconMedaes TotalAlert Infinity Installation, Operation And Maintenance Instructions

TotalAlert Infinity™ HTM Medical Gas Notification System
2.2.1 Remotely Installed Sensors in
Pipeline
1. Sensors can be installed onto the hospital pipeline
or in a compatible BeaconMedaes Zone Valve
Box. Pressure sensors should be connected to
the pipeline by means of minimum leak devices.
It should not be possible to isolate the sensor
by a manually operated shut-off valve while it is
connected to the pipeline. If a valve is incorporated
for maintenance purposes, it shall be opened by
the insertion of the sensing device.
2. Remove the protective cap and screw sensor into
the ¼" BSPP threaded port in the gas pipeline.
Ensure the Gas ID of the sensor installed matches
with the Gas ID of the pipeline.
3. Remove the black housing from the top of the
sensor to access the wiring terminal block.
4. Route the signal cable through the cord grip and
land the wires to the terminals. Ensure to match
correct polarity of the wires, Red(+), Black(-).
5. Install the black housing to the top of the sensor
and tighten the cord grip onto the cable (see
section 2.3.5).

2.3 Wiring

1/4" BSPP
Fitting
Connection should be
made on top of pipe
NOTE:
If the remote sensor is not installed using a
BeaconMedaes T-Fitting, an orifice should be
installed between the pipe and sensor to allow
Figure 2.3: Remote Pipeline Installation
future serviceability.
4107 9016 60.01
Gas Specific
Sensor
2-2

2.3.1 General Requirements

1. All alarms are to be powered from the Essential
Circuit as required by applicable standards. Mains
operated using 115/230V, 50/60Hz AC.
2. Protect all wiring from physical damage by
raceways or conduit as required by applicable stan-
dards. All electrical wiring should be in accordance
with IEE regulations.
3. Wire alarm panels directly to switches or sensors
as required by applicable standards.
4. Wiring runs should be made with color coded wire.
Record color, signal, and source of signal for each
wiring lead to aid in connection of alarm finish
components.
5. Avoid installing alarm panels near radio
transmitters, electrical motors, or switch-gear.

2.3.2 Wire Type and Size

All low voltage wiring must meet the following criteria:
• Copper wire no smaller than 22AWG conductor
insulation at least 0.4mm (0.016in), jacket
insulation at least 0.76mm (0.030in), rated for 300V
and 60°C (140°F) minimum.
• Circuit length not to exceed 100 meters.
• Cable must be twisted-pair shielded type. Multi-pair
cables within one common shield are acceptable.
All low voltage interconnect wiring between hospital
signaling units must meet the following criteria:
• Copper wire no smaller than 24AWG conductor
insulation at least 0.25mm (0.010in), jacket
insulation at least 0.76mm (0.030in), rated for 300V
and 60°C (140°F) minimum.
• Circuit length not to exceed 1200 meters.
• Cable must be twisted-pair shielded type. Multi-pair
cables within one common shield are acceptable.

2.3.3 Determining Number of Conductors