Hummingbird Paracube Sprint User manual

Paracube ®Sprint
Digital Paramagnetic Oxygen Sensor Module
Instruction Manual
Product Part Numbers: 00501/7XX series refer to table 7 for details.
Manual Part Number: 00501001A
Revision: 2
Language: UK English

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WARNINGS, CAUTIONS AND NOTES:
This publication includes WARNINGS, CAUTIONS and NOTES which provide,
where appropriate, information relating to the following:
WARNINGS: Hazards that may result in personal injury or death (coloured red).
CAUTIONS: Hazards that will result in equipment or property damage.
NOTES: Alerts the user to pertinent facts and conditions.
NOTE:
For safety reasons any sensor returned to Servomex must be accompanied by the
Decontamination Clearance Certificate contained in this manual. Unless the cell is
accompanied by this certificate, Servomex reserves the right to refuse to undertake
any examination of the product.
Apply appropriate anti-static handling procedures. Sensor returns must be packed in
the original packing material to prevent damage in transit.
WARNING - (USE):
As the final conditions of use are outside Servomex's control, it is the responsibility of
the equipment designer or manufacturer to ensure that the sensor is integrated in
accordance with any regional standards or regulations governing the final
application.
The sensor should not be relied upon as a single source of safety monitoring unless
expressly permitted within the regional standards or regulations governing the final
application.
NOTE:
The information in this document is subject to change without notice.
This document contains proprietary information which is protected by copyright. All
rights are reserved. No part of this document may be copied, reproduced or
translated to another language without the prior written consent of Servomex Group
Ltd.

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UK Legislation
Health and Safety at Work Act 1974
Control of Substances Hazardous to Health Regulations 2002 (as amended)
Ionising Regulations 1999
Important Notice
Servomex ensure that all products despatched to customers have been suitably purged and cleaned prior to
packaging, so that no hazards from the use of factory calibration gases or liquids will be present.
No item returned to Servomex or its representatives, for any reason whatsoever, will be accepted
unless accompanied by a copy of the following form fully completed and signed by a responsible
person. This is a requirement to comply with the above listed legislation and to ensure the safety of
the employees of Servomex and its representatives.
…………………………………………………………………………………………
Please tick one of the following sections as applicable to your equipment.
Decontamination Statement.
It is hereby certified that a suitable and sufficient decontamination process has been carried out and we have
taken reasonable action to ensure that the returned equipment described below will be free of potential toxic,
corrosive, irritant, flammable, radioactive or biological hazards and is safe to be handled, unpacked, examined
and worked upon by Servomex employees and its representatives.
Please give detail of decontamination process used:-_________________________ ____
________________________________________________________________________
Decontamination Clearance Certificate.
It is hereby certified that the equipment described below has never been exposed to any potential toxic,
corrosive, irritant, flammable, radioactive or biological hazards, therefore it is reasonably expected that it
should be safe for Servomex employees and its representatives to handle, unpack, examine and work upon
the equipment described below.
Equipment _______________ ______ Reason for return ______ ______________
________________________ _____ ___________________________ _______
______________ _____________ _______
Serial no __________________ ____ ___________________________ _______
__________________ _________ _______
_____________________ _______ ______
Company ______________ _ ____ _______
________________________ ___ _______
Signature _________________ _____
Print name _____________________ Company seal or stamp:-
Position ___________________ ____
Date __________________________
Form: 5000/2 issue2

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1:INTRODUCTION........................................................................................................................................6
2:SERVOMEX PARAMAGNETIC MEASUREMENT PRINCIPLE.......................................................7
3:PRODUCT SPECIFICATION....................................................................................................................9
3.1PERFORMANCE SPECIFICATION (UNDER CONSTANT CONDITIONS)..............................................................9
3.2 MECHANICAL SPECIFICATION..............................................................................................................11
3.3 EXTERNAL POWER SUPPLY SPECIFICATION.........................................................................................11
3.4 ENVIRONMENTAL SPECIFICATION .......................................................................................................12
4:SENSOR INTEGRATION........................................................................................................................14
4.1SENSOR MOUNTING..................................................................................................................................14
4.2ELECTRICAL ARRANGEMENT ...................................................................................................................17
4.3COMMUNICATION AND OUTPUT ...............................................................................................................19
4.4LOCATION OF SENSOR..............................................................................................................................20
4.5HOW TO MINIMISE EXPOSURE OF PNEUMATIC SYSTEM TO CONTAMINANTS............................................20
4.6HOW TO HANDLE THE SENSOR.................................................................................................................20
4.7ORIENTATION OF SENSOR.........................................................................................................................21
4.8CONDITIONING OF THE SAMPLE................................................................................................................21
4.9PRESSURE EFFECTS: .................................................................................................................................22
4.10USE OF SENSOR WITH FLAMMABLE /TOXIC SAMPLE GASES:..............................................................23
4.11SAMPLE GAS CONNECTION:................................................................................................................23
5:OPERATION AND CALIBRATION.......................................................................................................25
5.1CALIBRATION –INITIAL CONDITIONS.......................................................................................................25
5.2TWO POINT FULL CALIBRATION...............................................................................................................26
5.3SINGLE POINT OFFSET CORRECTION (SPOC)...........................................................................................27
5.4ZERO DRIFT OFFSET CORRECTION IN THE HOST EQUIPMENT...................................................................28
5.5RESTORE FACTORY CALIBRATION ...........................................................................................................28
5.6LED SENSOR STATUS ...............................................................................................................................29
5.7FORMAT OF THE SENSOR OUTPUT ............................................................................................................30
5.8STATUS FLAGS .........................................................................................................................................31
5.9SAMPLE OUTPUT SCENARIOS ...................................................................................................................32
5.10DIGITAL INTERFACE COMMANDS ........................................................................................................33
6:VARIANTS, SPARES, PACKAGING AND WARRANTY...................................................................35
6.1SENSOR VARIANTS OPTIONS –AS SHIPPED FROM SERVOMEX .................................................................35
6.2SPARES.....................................................................................................................................................36
6.3SPECIAL PACKAGING................................................................................................................................36
6.4PRODUCT FAILURE DURING WARRANTY..................................................................................................36
6.5PRODUCT FAILURE OUT OF WARRANTY ..................................................................................................36
6.6MAINTENANCE AND SERVICING ...............................................................................................................36
6.7DECONTAMINATION .................................................................................................................................37
6.8ROHS AND WEEE DIRECTIVES................................................................................................................37
7:APPENDICES ............................................................................................................................................38
APPENDIX 7.1OUTLINE DIMENSIONS,FACE SEAL WITH/WITHOUT GAS PORTS AS REQUIRED.......................38
APPENDIX 7.2OUTLINE DIMENSIONS,BRACKET MOUNT WITH BARBED GAS PORTS ....................................39
APPENDIX 7.3 MECHANICAL VIBRATION AND SHOCK RESISTANCE.............................................................40
APPENDIX 7.4SAMPLE GAS CROSS SENSITIVITY GUIDE..............................................................................41

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1: Introduction
The Paracube®Sprint represents the latest generation of Servomex’s paramagnetic
sensing technology. The sensor takes advantage of recent technological advances
allowing a performance only previously available from sensors of much greater size
and cost.
The sensor offers the OEM true flexibility in both mechanical and communication
interfaces incorporating Servomex’s world renowned paramagnetic technology
(described in section 2 of this manual) which has been designed into many OEM
products where reliability, long life and performance are major considerations.
Servomex’s non-depleting paramagnetic technology ensures consistent performance
over time with added cost-of-ownership benefits. The selectivity of the measurement
to oxygen means there is no interference from other respiratory gases. The sensor
provides a stable oxygen measurement, which is inherently linear requiring only two
reference gases to perform a full calibration. There is no requirement for a reference
gas during operation.
Note - No. 1
This Paracube® Sprint manual details the operation and
installation of the Digital variants only.
A full list of the digital variants for the Paracube® Sprint is
detailed in section 6.1. The manual detailing the Analogue
variants can be ordered under part number 00501009A.

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2: Servomex Paramagnetic Measurement Principle
The sensor utilises the paramagnetic susceptibility of oxygen, a physical property
which distinguishes oxygen from most other common gases.
The sensor incorporates two nitrogen-filled glass spheres mounted on a strong, noble
metal taut-band suspension. This assembly, termed the “Suspension Assembly” is
suspended in a symmetrical non-uniform magnetic field. When the surrounding gas
contains paramagnetic oxygen, the glass spheres are pushed further away from the
strongest part of the magnetic field. The strength of the torque acting on the
suspension is proportional to the oxygen content of the surrounding gases.
Fig.1
The measuring system is "null-balanced". The 'zero' position of the suspension
assembly, as measured in nitrogen, is sensed by a differential photo-sensor
assembly that receives light reflected from a mirror attached to the suspension
assembly. The output from the photo-sensor is processed and then fed back to a coil
wound around the suspension assembly to achieve a “Null Balanced” position. This
feedback achieves two objectives:
When oxygen is introduced to the cell, the torque acting upon the suspension
assembly is balanced by a restoring torque due to the feedback current in the coil.
The feedback current is directly proportional to the volume magnetic susceptibility of
the sample gas and hence, after calibration, to the partial pressure of oxygen in the
sample. A voltage output is derived which is proportional to the feedback current.
Taut Band
Permanent
Magnet
N2 filled
Spheres
Magnetic Field

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Fig.2
In addition, the electromagnetic feedback stabilises the suspension (heavily damping
oscillations) thus making it resilient to shock and vibration.
Rotation
Mirror
Light source
Photodiodes
Current measurement
Conductive wire
A
mplifier

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3: Product Specification
3.1 Performance Specification (under constant conditions)
This specification applies when the sensor has been calibrated using standard gas
values of N2and 100% O2 using the calibration procedure described in section 5.
Unless otherwise stated, the performance figures quoted are derived from two
standard deviation analysis. Where marked (†) testing has been conducted in
accordance with the requirements of IEC 61207-1 1994
Operating Range
0 to 100% O2 with over range capability -15% O2to +200% O2
Intrinsic Error†
<±0.2% O2
Linearity†
<±0.2% O2
Repeatability†
<±0.2% O2
Signal Noise (peak to peak)†
<0.2% O2
Zero Stability (permanent drift from calibration value) †
<±0.4% O2for first 24 hours
<±0.2% O2 for the subsequent week (additional)
<±0.2% O2per month thereafter (additional)
Temperature Coefficient
Zero: <±0.5% O2/ 10oC
Span: <±0.5% of O2reading / 10oC

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Response Time
Rise Time (t10 - t90)
Gas Exchange Sample Flow Rate Response Time
16% - 21%O2
50mL.min-1 1,150 ms
120mL.min-
1
395 ms
190mL.min-
1
230 ms
250mL.min-1 170 ms
21% - 100%O2
50mL.min-
1
1,300 ms
120mL.min-1 560 ms
190mL.min-
1
370 ms
250mL.min-1 280 ms
Fall Time (t10 - t90)
Gas Exchange Sample Flow Rate Response Time
21% - 16%O2
50mL.min-1 1,150 ms
120mL.min-1 395 ms
190mL.min-
1
210 ms
250mL.min-1 160 ms
100% - 21%O2
50mL.min-
1
1,300 ms
120mL.min-1 560 ms
190mL.min-
1
300 ms
250mL.min-1 190 ms
Flow Error
<±0.3% for 10ml/min change in flow rate within the operating flow range (50 to 250
ml/min)
Pressure Range
±33kPag (±5sig), operating
±66kPag (±10psig), proof
±100kPag (±15psig), failure
Tilt
<±0.5% O2equivalent for 15° change in orientation from the calibration point