DIVEX 2 diver HP/LP control panel Operating instructions

PP-OM-794 Rev1
OM338
OPERATING AND MAINTENANCE
MANUAL
for the
TWO DIVER, SURFACE CONTROL,
HP/LP AIR IN TRANSIT CASE,
HINGED LID
(Part No: PP033AA)

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OM338 i
PP-OM-794 Rev1 Approval Sheet
APPROVAL SHEET
DIVEX
MANUAL NUMBER: OM338
ADVITIUM NUMBER: PP-OM-794
DOCUMENT TITLE: Two Diver, Surface Control, HP/LP Air in Transit Case, Hinged Lid
REV DATE BY CHECK APP COMMENTS
0 11 October 2006 Christine Bain Original Issue
1 28 August 2012 Debbie Allan Simon Bryce Mark Stevens ECN:15335
2
3
4
5
6
7
ORIGINAL ISSUE DATE: 11 October 2006
ORIGINAL DOCUMENT BY: Christine Bain
CHECKED BY:
APPROVED BY:

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PP-OM-794 Rev1 Table of Contents
CHAPTER 1 - SAFETY NOTICE .................................................................................................... 1
CHAPTER 2 - TECHNICAL SPECIFICATION ............................................................................... 3
CHAPTER 3 - GENERAL DESCRIPTION ..................................................................................... 5
CHAPTER 4 - INSTALLATION ...................................................................................................... 7
CHAPTER 5 - PRE-DIVE CHECK .................................................................................................. 9
CHAPTER 6 - OPERATION ......................................................................................................... 11
CHAPTER 7 - PNEUMO OPERATION ........................................................................................ 13
CHAPTER 8 - CYLINDER CHANGE OVER ................................................................................ 15
CHAPTER 9 - AUXILIARY LOW PRESSURE INLET ................................................................. 17
CHAPTER 10 - LOW H.P. WARNING ......................................................................................... 19
CHAPTER 11 - MAINTENANCE .................................................................................................. 21
CHAPTER 12 - MAINTENANCE SCHEDULE - 6 MONTHLY ..................................................... 23
CHAPTER 13 - APPENDICES ..................................................................................................... 25
TABLE OF CONTENTS

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OM338 1
PP-OM-794 Rev1 Chapter 1
CHAPTER 1 SAFETY NOTICE
1.1 This unit must only be operated by suitably qualified personnel.
1.2 Read the instructions thoroughly before operating this equipment.
1.3 Only genuine manufacturer's spare parts may be used and the substitution of parts
from other manufacturers will invalidate the warranty and may cause damage to the
equipment. When ordering spare parts, please quote the serial number of the
assembly and the part numbers required.
1.4 This panel has been designed to supply air to breathing apparatus, for diving, and
the manufacturers will not be responsible for its use for any other purpose.
1.5 The user must make him/herself familiar with and observe national legal
requirements concerning the safe use and maintenance of the equipment. The
manufacturers ensure that the equipment complies with such regulations on
delivery but it remains the responsibility of the user to comply with the legal
requirements in use.
1.6 It is the responsibility of the user to establish the flow and pressure of air required for
the breathing apparatus to be employed and to ensure that the supply is adequate
for the use envisaged. This responsibility includes the provision of an adequate
reserve air supply.
CAUTION
COMPRESSED AIR IS POTENTIALLY DANGEROUS THIS EQUIPMENT
MUST BE USED CORRECTLY MISUSE COULD CAUSE SERIOUS
INJURY.

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PP-OM-794 Rev1 Chapter 2
CHAPTER 2 TECHNICAL SPECIFICATION
Inlet Pressure L.P. 15 BAR maximum (220 psi)
H.P. 350 BAR maximum (5075 psi)
Hose Connections LP inlet 3/8" BSP male
HP inlet 1/4" BSP male
Diver supply 3/8" BSP male
Pneumo 1/4" BSP male
Overall External Dimensions Length 730mm (29”)
Width 610 mm (24”)
Height 380 mm (16”)
Weight approximately 40 kg (88lbs)
Pipework H.P. 8mm x 1mm stainless steel
L.P. 10mm x 1mm stainless steel

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PP-OM-794 Rev1 Chapter 3
CHAPTER 3 GENERAL DESCRIPTION
3.1 The DIVEX two-diver, Surface Control, H.P./L.P. air panel will supply low pressure
breathing air to two divers working simultaneously, to a depth of 60 metres in fresh
or salt water.
3.2 The panel contains four completely separate high pressure lines, two for each diver.
Non-return valves ensure that the air to one diver cannot be diverted to the other. As
a back-up, one L.P. inlet line is fitted, which can supply either diver with air.
3.3 Each diver's depth can be monitored using the pneumo gauges which measure the
hydrostatic pressure in an open ended hose from the panel to each diver.
3.4 The controls are packaged within a strong plastic transit case.

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PP-OM-794 Rev1 Chapter 4
CHAPTER 4 INSTALLATION
(Refer to Drawing PP33110S1
Using a high pressure air supply.
4.1 Ensure all on/off valves are in the OFF position.
4.2 Ensure the H.P. / L.P. regulator controls are turned fully anti-clockwise.
4.3 Connect the H.P. hose assembly to the high pressure air cylinders, ensuring that the
cylinder valves remain in the OFF position.
4.4 Connect the diver's air line from the umbilical to the diver’s L.P. outlet on the panel.
4.5 Connect the diver's Pneumo hose from the umbilical to the panel pneumo connec-
tion.
4.6 Connect the diver's end of the umbilical to the appropriate breathing apparatus.

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PP-OM-794 Rev1 Chapter 5
CHAPTER 5 PRE-DIVE CHECK
5.1 With all lines connected and the diver dressed in all his equipment but holding the
face/mask helmet, turn on the H.P. cylinder.
5.2 Turn on the H.P. inlet valve slowly (3).
5.3 Read the H.P. inlet pressure (4). Ensure that there is adequate cylinder pressure.
5.4 Use the H.P./ L.P. regulator (1) to set the correct L.P. pressure for the diver's breath-
ing apparatus.
5.5 Slowly open the 1/4 turn diver supply outlet valve (2).
5.6 Confirm with the diver that an adequate air supply is being received at the mask/hel-
met.

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PP-OM-794 Rev1 Chapter 6
CHAPTER 6 OPERATION
6.1 The panel works automatically but the operator should continuously monitor the
H.P. / L.P. air supply and the L.P. supply to the diver (s).
6.2 When the diver is descending and ascending, the control panel operator may have
to adjust the H.P. / L.P. regulator (1) depending on the mask/helmet configuration.
6.3 Under conditions of very low ambient temperature or when using inadequately
filtered "wet" air, icing could occur within the H.P./L.P. regulator. This could be
indicated by fluctuating or falling low pressure as shown on the LP gauge (5). If any
signs of icing are noticed diving should be terminated immediately.

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PP-OM-794 Rev1 Chapter 7
CHAPTER 7 PNEUMO OPERATION
7.1 The divers’ depths can be read from the pneumo gauges (13).
7.2 Turn on the pneumo valve (6) to supply air to the pneumo hose in the umbilical and
allow the air to flow for enough time to ensure it is bubbling out of the open, diver
end.
7.3 When the air has bubbled out of the hose end, close off the supply valve (6) and
read the hydrostatic pressure (shown as diver depth) on the pneumo gauge (13).
7.4 The depth must be checked periodically using the above method, particularly if the
diver is changing depth whilst working. When his work is completed and the diver is
returning to the surface, the gauge will automatically read his decreasing depth
without the operator supplying more air to the pneumo hose.

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