Dräger LFB PSS 7000 - User Manual

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Policy | Procedure

Review date: 29 January 2023 Last amended date: 5 May 2020

476 Issue date: 17 November 2006 1 of 80

Respiratory protective equipment – breathing apparatus –

Dräger PSS 7000 – technical information

New policy number:

476

Old instruction number:

TEC:B010:b1

Issue date:

17 November 2006

Reviewed as current:

29 January 2020

Owner:

Assistant Commissioner, Operational Policy

Responsible work team:

RPE and Hazmat PPE

Contents

1 Introduction .................................................................................................................. 3

2 Component parts ........................................................................................................... 6

3 Backplate assembly ........................................................................................................ 9

4 Harness and cylinder strap assembly ................................................................................ 10

5 Telemetry module ........................................................................................................ 11

6 Charging BA set from appliance ...................................................................................... 11

7 FPS 7000 dual purpose face mask ................................................................................... 13

8 Lung demand valve (LDV) ............................................................................................. 15

9 Pneumatic system ........................................................................................................ 16

10 Second person connection............................................................................................. 17

11 Bodyguard 7000 electronic monitoring unit (EMU) ............................................................. 19

12 Bodyguard in use functions ............................................................................................ 20

13 Bodyguard electronic monitoring unit self-check ................................................................ 22

14 SDBA cylinder ............................................................................................................. 23

15 SDBA set – lifting and carrying instructions ....................................................................... 32

16 EDBA cylinder ............................................................................................................. 32

17 EDBA set – lifting and carrying instructions ....................................................................... 36

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The document describes the Dräger PSS 7000 respiratory protective equipment (RPE), which includes both Standard Duration Breathing Apparatus (SDBA) and Extended Duration Breathing Apparatus (EDBA). This equipment is designed for use by firefighters and other personnel requiring respiratory protection in hazardous environments.

Function Description

The Dräger PSS 7000 is a self-contained breathing apparatus (SCBA) that provides breathable air to the wearer. It features a positive pressure, first breath activated system, an ergonomic carrying system adjustable to suit the wearer, and an electronic monitoring unit with telemetry. The system includes a second person connection for air supply and a dual-purpose face mask that can also be fitted with a filter cartridge for protection against particulates. The Lung Demand Valve (LDV) is designed to maintain positive pressure inside the mask, preventing inward leakage of contaminants. The telemetry module allows for digital radio transmission and reception of alarm signals and data to/from a PSS Merlin entry control board (ECB), enhancing safety and monitoring during operations.

Important Technical Specifications

General BA Set:

Conforms to EN 137: 2006 and EC Council Directive 89/686/EEC, BSEN 133.
CE mark approved.
ATEX certification (94/9/EC): 1M/II 1GD ITS 07 ATEX 25580 Ex ia I/IIC T4 (Ta-30°C to +60°C).
Weight (with battery pack, FPS face mask, LDV, personal line, without cylinder): SDBA = 6.45 kg, EDBA = 7.05 kg.
Weight (fully charged, with cylinder cover): SDBA = 15.50 kg, EDBA = 22.15 kg.

Reducer:

Main body: Brass (BSEN 12420 - CW 617N), Nickel plated.
Standard hand wheel thread: DIN G5/8 (EN 144-2: 1999).
Normal first stage output pressure: 8 bar.
First stage output flow: > 1000 l/min.
High pressure pneumatic whistle activation pressure: 74 (+/- 5 bar).
Whistle sound level: > 90 dBA.
Whistle frequency range: 2000 – 4000 Hz.
Threaded hand wheel (300bar) thread: DIN G5/8 (EN 144: 2000).

SDBA Cylinder:

Volume: 8 litres (water capacity).
Charging pressure: 300 bar.
Contains: 2160 litres of compressed breathable air (at 300 bar).
Hydraulic test: Every five years.
Design life: 30 years.
Construction: Aluminium liner over-wrapped with carbon and glass fibres, epoxy resin bonded, outer laminating resin layer.
Weight (empty): Approximately 5.55 kg.
Weight (full): Approximately 8.50 kg.
Weight (full with cylinder cover on): 8.95 kg.
Outlet connection: DIN ISO 228/1 - G5/8.
Cylinder label information includes: EN 144-1 M18 x 1.5 GB, country of manufacture (GB), serial number (BRAD-0871), manufacturer's part number (/3357748), empty weight (5.55KG), water volume (V8.0L), working pressure (PW 300 at 15°C), test pressure for retest (PT/PH450BAR), CE mark (CE 0038), standard (EN 12245:2002), manufacture date (GB 2009/04), end of design life (FINAL 2039/04), operating temperature range (TS-50°C/+60°C), maximum service pressure (PS max: 374BAR at 60°C), and first retest year (2014).

EDBA Cylinder:

Volume: 6.8 litres (water capacity) x two (twin pack).
Charging pressure: 300 bar.
Contains: 3672 litres of compressed breathable air (at 300 bar).
Hydraulic test: Every five years.
Design life: 15 years.
Weight (empty): Approximately 10.60 kg.
Weight (full): Approximately 15.10 kg.
Weight (full with cylinder cover on): 15.55 kg.

FPS 7000 DPFM (Face Mask):

Meets full face mask standard EN 136:1998 Class 3.
CE mark of conformity, flame engulfment requirements (EN 137).
Weight: Approximately 600 g.
Connection: ESA (standard plug-in connection), compatible with LDV or EN 143 filter cartridge.
Mask body material: Ethylene Propylene Diene Monomer (ASTM D-1418, EN 136:1998 Class 3+, CE0158).
Sizes (Outer Mask): S (small), M (medium), L (large).
Sizes (Inner Mask): 1 (small), 2 (medium), 3 (large).
Visor: PC, F (fire brigade), EN 166 – 2002; A (ballistic protection class/190 m/s); T (ballistic protection at extreme temperatures, tested at -30°C and +60°C with 190 m/s); PCaf (scratch-resistant, anti-fog coating).

Bodyguard 7000 Electronic Monitoring Unit (EMU):

High pressure connection: 300 bar.
Pressure transmitter unit: Electronic pressure sensor for high pressure outlet port of first stage reducer.
Electronic low pressure warning: Activation set to 84 bar.
Power supply: Main power – 6.5 volts, Low battery warning – 5.5 volts, Power-up shut off – 5.0 volts.
Battery pack operating time: Approximately five months (one hour per day usage, fully charged and tested).
Distress alarm sound level: 102 – 112 dBA.
Operating temperature range: -32°C to +70°C.
Approvals: EN137: 2006 Type 2, Atex I M 1 / II 1 GD IIC T6 (Ta -30°C to +60°C), IM 1/II GD IIB T6 (Ta-30°C to +60°C).
RF Compliance: EN6100-4-3, 30 V/m to ISO11452 Part 2.

Usage Features

Ergonomics and Adjustability:

3-point height adjustable, lightweight, high strength, carbon composite backplate.
Integrated hose channels to reduce snagging.
Sliding and swivelling waist belt.
Shoulder yoke with three pre-set height settings (S, M, L) for body length adjustment, secured by spring-loaded buttons with an audible 'click'.
Padded shoulder harness and waist belt for comfort and weight distribution.
Hose sleeves on shoulder harness are reflective and reduce snagging.

Cylinder Handling:

Unique 'Camlock' buckle for secure cylinder clamping.
Rubber cradle assists cylinder alignment.
Ratchet hand wheel on cylinder valve prevents inadvertent closing; requires manual lifting to close.
Cylinder valve must be fully opened for unrestricted airflow.
Cylinders should be carried vertically by the neck, not the hand wheel.
SDBA sets are donned for carrying to transfer weight to hips and legs.
EDBA sets require a two-person lift due to their weight.

Face Mask and LDV:

FPS 7000 dual-purpose face mask with inner mask, visor, exhalation valve, and head harness.
First breath button on LDV activates the mechanism; an additional flow button provides extra air.
LDV maintains positive pressure inside the mask.
Outer rubber casing of LDV can be partially removed for use in hi-expansion foam to prevent constant flow.
Face mask seal is critical; wearers must be clean-shaven, and cosmetics/sun tan creams should not contact the rubber seal.

Electronic Monitoring Unit (Bodyguard 7000):

Digital screen displays cylinder pressure (numeric and radial), user details, time to warning (TTW), and warning icons.
Activated by cylinder pressure.
Continuous monitoring of BA set.
Features: Air pressure monitoring, TTW display, Time of Warning (TOW) with flashing LEDs and audible warning, visual LED indicators (green for operational, red/blue for warning, blue for telemetry), motion sensor, and automatic distress signal unit (ADSU).
Manual distress signal unit (DSU) button.
Rechargeable battery pack with in-cab charging port.
BA entry control tally matches the telemetry module's identification number.

Second Person Connection:

Quick release coupling (QRC) for connecting a second person's air supply.
900 mm hose, secured at three points on the BA set to prevent entanglement and damage.
Wearers should maintain close contact and follow correct air exchange procedures.

Maintenance Features

Routine Testing ('A' and 'B' Tests):

'A' Test (Pre-use/Daily Check): Performed when taking over a BA set, after a cylinder change, when testing a 'spare' set, or after respirator use. Involves physical checks (identification numbers, cylinder condition, hose security, Bodyguard display, face mask condition, LDV operation), self-check of Bodyguard, leak test, and breathe-down sequence to check low pressure warnings.
'B' Test (After Use/Monthly): Performed on receipt at station (for replacement sets), or after any use (including 28-day test). Includes cleaning and inspection of face mask, LDV, BA set components (harness, backplate, telemetry module, hoses), cylinder removal/replacement, quick release coupling tests, Bodyguard self-check, ADSU/DSU test, leak test, and breathe-down sequence.
All tests require checking the 'do not use after' date on the log book and Bodyguard display.
Nitrile gloves should be worn during testing.

Cleaning:

Face mask: Cleaned with 0.5-1.0% Safetywash solution (max 30°C), immersed for 15 minutes, rinsed with clean water, dried with lint-free cloth, disinfected with damp PALTECH wipe. LDV should not be immersed.
Cylinder cover: Cleaned with warm soapy water and a cloth. Stubborn stains can be removed with nylon hand brush and undiluted soap. Abrasive cleaners are not to be used.
BA set (general): Cleaned with Safetywash solution, wiped with a rinsed Wypall x80 cloth, and dried thoroughly. Backplate should not be submerged, and water should not enter the battery pack compartment.

Defective Equipment Procedures:

Defective items require a POMS order for replacement.
Defective BA sets (Bodyguard key, tally, face mask, personal line, log book, blank caps) are sent to OSG.
Defective cylinders are removed from service, marked M/T, labelled, and exchanged by day van service.
Defective cylinder covers (torn straps, broken zips) are replaced from RPE spares box, and the defective cover is sent to PSG.
Defective BA tallies are replaced via POMS, ensuring the telemetry module number is included for programming.
Defective cable cutters/pouches are replaced from RPE spares box and sent to OSC.

RPE Maintenance Rooms:

Must be kept clean and tidy, free from oil, dirt, and grease.
Only RPE and approved cleaning materials should be stored/used.
No smoking, drinking, or eating.
Oxygen equipment must be turned off and checked for leaks to prevent oxygen enrichment.