Quantum ONE O2 Installation instructions

ONE O2 OXYGEN MONITOR
ALARM UNITS
INSTALLATION & OPERATING MANUAL
Revision
Date
Details
1-0
12-09-17
1ST ISSUE
Quantum Cryogenics
Quantum Cryogenics
Unit B Cranmere Road
Unit 13 Langley Court Business Park
Okehampton
World’s End
Devon, EX20 1UE
Berkshire, RG20 8RY
T. [phone]
F. [phone]
W. www.quantumcryogenics.com

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COPYRIGHT QUANTUM CRYOGENICS. 2017 ©
THIS DOCUMENT IS THE PROPERTY OF QUANTUM CRYOGENICS. NO PART OF THIS
DOCUMENT MAY BE REPRODUCED TO A THIRD PARTY IN ANY FORM WITHOUT THE
WRITTEN PERMISSION OF QUANTUM CRYOGENICS.
QUANTUM CRYOGENICS IS A TRADING NAME OF QUANTUM PRODUCTION LTD.

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ONE O2 OXYGEN MONITOR ALARM UNITS Page 1 of 21.
TABLE OF CONTENTS
1SAFETY WARNINGS........................................................................................................ 2
2INTRODUCTION.............................................................................................................. 6
3INSTALLATION................................................................................................................ 7
4OPERATION.................................................................................................................... 8
4.1 LOW / CRITICALLY LOW........................................................................................... 8
4.2 HIGH / CRITICALLY HIGH ......................................................................................... 9
4.3 HIGH / LOW........................................................................................................... 10
5MAINTENANCE ............................................................................................................ 11
5.1 TESTING ................................................................................................................ 11
5.2 SENSOR OPTIMISATION ........................................................................................ 11
5.3 CALIBRATION LOW / CRITICALLY LOW .................................................................. 11
5.4 CALIBRATION HIGH / CRITICALLY HIGH................................................................. 12
5.5 CALIBRATION HIGH / LOW .................................................................................... 12
5.6 REPLACING THE SENSOR AND BATTERY PACK ...................................................... 13
5.6.1 REMOVAL OF THE OLD SENSOR-BATTERY PACK. ........................................... 13
5.6.2 FITTING THE NEW SENSOR-BATTERY PACK .................................................... 14
5.6.3 CALIBRATING AND TESTING AFTER FITTING A NEW SENSOR-BATTERY PACK. 15
5.6.4 FITTING THE NEW `REPLACE SENSOR-BATTERY PACK BY ...’ LABEL ............... 15
6APPENDIX A –TECHNICAL SPECIFICATION................................................................... 16
7APPENDIX B –QUICK REFERENCE GUIDE ..................................................................... 17
8APPENDIX C –WARRANTY STATEMENT ....................................................................... 19
9APPENDIX D –EC DECLARATION OF CONFORMITY...................................................... 20
10 APPENDIX E –END OF LIFE DISPOSAL ...................................................................... 21

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ONE O2 OXYGEN MONITOR ALARM UNITS Page 2 of 21.
1SAFETY WARNINGS
THESE INSTALLATION AND OPERATION INSTRUCTIONS SHOULD BE READ
COMPLETELY BEFORE INSTALLING OR OPERATING THIS EQUIPMENT / SYSTEM.
THIS MANUAL ASSUMES:
•YOU ARE ALREADY TRAINED AND COMPETENT IN THE SAFE USE AND HANDLING OF
INDUSTRIAL GASES / CRYOGENIC FLUIDS AND CRYOGENIC / ELECTRICAL EQUIPMENT!
•YOU ARE FAMILIAR WITH THE RISKS ASSCOCIATED WITH EXTREME LOW
TEMPERATURES!
•YOU ARE FAMILIAR WITH THE RISKS ASSOCIATED WITH ASPHYXIATION AND LOW
OXYGEN ATMOSPHERES!
Persons handling cryogenic liquids (liquid nitrogen, argon or carbon dioxide) should be
aware of the dangers associated with their extreme cold and also the possibility of
asphyxiation should large volumes of liquid or gas be discharged in confined or poorly
ventilated areas. Persons handling liquid oxygen must also be aware of its potentially
hazardous oxidising properties. Carbon dioxide additionally has toxic properties.
CARBON DIOXIDE (CO2) IS TOXIC. O2 MONITORING SYSTEMS SHOULD NOT BE USED FOR
CO2 MONITORING. CO2 CONCENTRATIONS WILL BECOME DANGEROUSLY TOXIC BEFORE
AN O2 MONITORING SYSTEM WILL REACT. A DEDICATED CO2 MONITOR SHOULD BE USED
TO PROTECT AGAINST CO2 ENRICHMENT.
USE APPROPRIATE PERSONAL GAS MONITORS WHEN WORKING.

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ONE O2 OXYGEN MONITOR ALARM UNITS Page 3 of 21.
Standard equipment must NOT be used with liquid oxygen. Only equipment which has been
specially cleaned and specifically labelled as `CLEANED FOR OXYGEN SERVICE’ may be used
with liquid oxygen. This is due to the increased risk of fire or spontaneous combustion in
pure or enriched oxygen environments.
Safety information provided by the suppliers of the industrial gas / cryogenic liquid must be
read and understood before and followed during the installation and operation of this
equipment. Failure to observe all safety precautions may result in property damage, personal
injury, and/or death.
DO NOT TOUCH COLD SURFACES OR LIQUID WITH BARE SKIN.
Cryogenic liquids are extremely cold and exposure of skin or eyes to liquid, cold gas or cooled
objects may result in severe cold burn injury. The use of eye / face protection, insulated

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ONE O2 OXYGEN MONITOR ALARM UNITS Page 4 of 21.
gloves, appropriate clothing and footwear is required. Take time to consider these and other
safety precautions that must be observed.
Siren beacons can be extremely loud, >110dBA. Wear appropriate ear protection if working
with or close to active siren beacons. Consider others working nearby.
Failure to correctly maintain the equipment / system could result in the equipment / system
failing to operate correctly. Calibration should only be performed by persons trained and
approved by Quantum Cryogenics.
The equipment must be used only for the purpose and in the manner described in these
instructions. If used for other purposes or in a manner not specified protection provided by
this equipment may be impaired. The equipment must not be used as a critical component
in life support devices or systems.
ELECTRICAL SHOCK CAN KILL
Isolate all power supplies before opening enclosures or attempting to connect / disconnect
equipment. Items may have multiple power sources which may include, but are not limited
to, internal battery, dedicated low voltage power supply, external low voltage power supply
(with or without battery back-up). Power may also be supplied from repeater units or other
ancillary items connected.

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ONE O2 OXYGEN MONITOR ALARM UNITS Page 5 of 21.
All electrical installation must only be carried out by a qualified electrician or other suitably
qualified and competent person.
Take extreme care if handling the PCB, THE ASSEMBLY IS EXTREMELY FRAGILE. Protect it
from damage and electro static discharge.

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ONE O2 OXYGEN MONITOR ALARM UNITS Page 6 of 21.
2INTRODUCTION
The ONE O2 monitor continually monitors the air surrounding the sensor on its base and
provides visual and audible alarms when the monitored concentration of oxygen passes pre-
set `Alarm’ levels.
There are 3 models of ONE O2 monitor units for different oxygen deficiency and enrichment
applications. Please ensure you have correctly identified the model type and refer to the
appropriate sections of this manual. To identify the model type check the text adjacent the
red LEDs on the face plate.
Low / Critically Low
For oxygen deficiency applications
Alarm 1 Set 19.5% LOW OXYGEN ALARM
Alarm 2 Set 18.2% CRITICALLY LOW OXYGEN ALARM
High / Critically High
For oxygen enrichment applications
Alarm 1 Set 22% HIGH OXYGEN ALARM
Alarm 2 Set 23% CRITICALLY HIGH OXYGEN ALARM
High / Low
For combined enrichment and deficiency applications
Alarm 1 Set 22% HIGH OXYGEN ALARM
Alarm 2 Set 18.2% LOW OXYGEN ALARM
Please note the alarm thresholds shown above are the current default settings. Older
equipment may have different alarm thresholds. Please refer to the calibration certificate for
threshold settings specific to an item of equipment.

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ONE O2 OXYGEN MONITOR ALARM UNITS Page 7 of 21.
3INSTALLATION
The ONE O2 monitor should be fitted adjacent to the gas source. The monitor should be
wall mounted by fixing firmly to a clean, dry, vertical surface using appropriate fixings.
When deciding where to position the monitor, consideration should be given to:
[i] whether the alarm lights and audible alarm can be easily seen and heard, and
[ii] whether the unit is placed so that it is monitoring the required area adequately.
Take care to ensure that the monitor is not installed above items such as work tops or other
equipment and cannot be obstructed or blocked-in by any item which may restrict the free
flow of air around the monitor.
The monitor should be located at a height appropriate for the monitoring conditions. For
oxygen deficiency applications where the inert gas has a relative density greater than air the
monitor should be positioned 1m above floor level. For inert gases with a relative density
lower than air (helium) the monitor should be positioned as high as practicable. For oxygen
enrichment applications the monitor should be positioned 1m above floor level.
The ONE O2 base unit monitors the surrounding air by natural convection and diffusion into
the oxygen sensor through the sensor filter in its base.
IT IS IMPORTANT TO ENSURE THAT THE SENSOR FILTER IS NEITHER COVERED NOR BLOCKED
and that
AIR CAN CIRCULATE FREELY AROUND THIS FILTER AND THE BASE OF THE UNIT.
The ONE O2 monitor must not be exposed to, immersed in or sprayed with water, rain,
solutions or other solvents.
For wiring information please refer to the CryoPanel 4 manual.

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4OPERATION
The ONE O2 monitor is powered by internal (non-rechargeable) batteries. It operates
continuously and has no ON / OFF switch.
If the Low Battery condition is observed the ONE O2 monitor should be withdrawn
from service immediately as it may no longer operate correctly. A replacement Sensor-
Battery Pack (Part number ONE O2-RS) should then be fitted.
The Sensor-Battery pack within the ONE O2 monitor must be replaced on or before the date
shown on the label which is found on the side of the product. The sensor –battery pack has
a 3-year life and should be replaced every three years. Older versions may have a 2 year
battery and sensor.
4.1 LOW / CRITICALLY LOW
The normal operation of the ONE O2 LOW / CRITICALLY LOW monitor is summarised in the
table below:
Condition
Audible
Alarm
(monitor)
19.5% Red
LED
(monitor)
18% Red
LED
(monitor)
Normal (Monitored oxygen level
above the `Low Oxygen’ threshold
and battery voltage satisfactory.
Off
Off
Off
Low Oxygen Alarm -19.5%
(Monitored oxygen level below the
`Low Oxygen’ but above the
`Critically Low Oxygen’ thresholds.
Bleeping
Flashing
Off
Critically Low Oxygen Alarm –18%
(Monitored oxygen level below the
`Critically Low Oxygen’ threshold.
Bleeping
Flashing
Flashing
Low Battery (Battery voltage
unsatisfactory)
Constant
tone
Off
Off
In the `Normal’ condition (monitored oxygen concentration is above the `Low Oxygen
Alarm’ threshold and the internal battery voltage is satisfactory) All LED’s will be off and
audible unit will be off.