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Issue date: 17 November 2006
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4.3
The material of the hose retaining flaps is a double coated Neoprene Polyester plus a ‘Scotchlite’
reflective outer printed with a photo luminescent pattern and a blue Dräger logo.
4.4
The cylinder strap is fitted to a unique ‘Camlock’ buckle that ensures that the cylinder is securely
clamped to the backplate. A rubber cradle assists in alignment of the cylinder prior to clamping
4.5
All straps, adjusting straps, and the cylinder securing strap are manufactured from black Kevlar
webbing that meets the flame test requirements of EN137: 2006.
5
Telemetry module
5.1
The PSS Merlin telemetry module is a battery-powered unit
incorporating an integral digital radio transmitter/receiver
with an external antenna. The integrated assembly is able to
transmit and receive audible and visual alarm signal data to
and from the PSS Merlin entry control board (ECB). The
unit is programmed with an identification number (London
Fire Brigade ID is 028) and an individual telemetry module
identification number.
5.2
The module is permanently attached to the backplate of the
BA set and is only interchangeable by Operations Support
Group (OSG).
5.3
Power is supplied by a rechargeable battery pack located in
the backplate of the breathing apparatus. An in-cab charger
provides charging via a charging port incorporated into the
telemetry module.
5.4
Supplied with each module is a matching BA entry control
tally which is encoded with the same identification number
as the module. A label on the tally shows the brigade name,
the telemetry module identification number and three
headings that allow the following information to be added
using a ‘Chinagraph’ pencil:
•
The rank and name of the wearer.
•
The cylinder pressure.
•
The actual entry time into the risk area (using the clock of the ECB).
5.5
Where a radiation risk may be present, a dosimeter reading can be recorded on the reverse side
of the tally (prior to entry and after exit).
5.6
The BA tally must stay with the BA set when the set is sent in for repair/service as it is linked with
the telemetry module (the tally and telemetry identification numbers must match to ensure that
the telemetry module links with the ECB that the tally is placed into).
6
Charging BA set from appliance
6.1
BA sets must be connected to appliance charging points to maintain a fully charged battery pack.
All BA stowage are fitted with charging points, the components can be identified as follows:
•
Drager in-cab charger fitted to locker stowage in this example (see image 1136764).
•
Charging lead located to the left side of the stowage (see image 248635).
Tally number
Module number
