Benefits
02 | Dräger PSS
®
Merlin
®
System
Telemetry – For precise monitoring of breathing apparatus wearers
The PSS Merlin System offers the choice of using two versatile versions. Firstly, you can use the PSS Merlin
Entry Control Board, the Dräger Bodyguard 7000 or Bodyguard II electronic monitoring unit and the ATEX-
approved PSS Merlin Modem.
Secondly, the system can be used with the Dräger PSS Merlin Software as opposed to the Entry Control
Board. The Software, when used with the PSS Merlin PC Modem, offers additional benefits.
By using the PSS Merlin Modem, the latest information will be sent from the Bodyguard 7000 or Bodyguard
II to the PSS Merlin Software or Entry Control Board, meaning that the incident commander is given real time
information of the breathing apparatus wearer, enabling a prompt response in case of emergency situation.
Life critical information in real time
There is a two way communication between the wearer and the incident commander. Transmitted from the
breathing apparatus wearer is the following data:
‒ Manual distress signal
‒ Automatic distress signal
‒ Cylinder pressure
‒ Time to whistle
‒ Elapsed time
‒ Withdrawal and evacuation signal
‒ Acknowledgment of global or individual evacuation signal
Via the Software or Entry Control Board, the incident commander is able to
‒ send individual or team evacuation
‒ acknowledge breathing apparatus wearer’s distress signals, automatic distress signals and withdrawal
signals
Automatic activation and logging in
For enhanced usability: When opening the cylinder valve, the system switches on both the Bodyguard 7000
and the PSS Merlin Modem. The PSS Merlin Entry Control Board is activated by the insertion of a tally key.
The identity of the PSS Merlin Modem is read and a unique connection is established between radio and
board. The system continuously monitors the status of the connection. When used with the Dräger PSS Merlin
Software and the PSS Merlin PC Modem, it is even possible to log on the breathing apparatus automatically –
without the need for insertion of a tally key.
It is however still possible to establish the connection by a tally, if required. Personalization of the breathing
apparatus can also be undertaken, enabling for easy documentation and transparency for tracking its usage.
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