Ampcontrol Gasguard 2 GG2 DETECTOR Скачать руководство пользователя страница 15 | Manualshive

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Ampcontrol Pty Ltd

– ABN 28 000 915 542

GG2 DETECTOR USER MANUAL

GG2B011 Version 3

– June/19

Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version

Page 15 of 39

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Pharmaceutical
Plants

at levels above
2ppm
(continuous
exposure)

Acetylene

Welding
Applications
Some
Petrochemical
Plants

Signal output on
gas is progressively
reduced, Zero
Output increases.
Effect is noticeable
at levels >
5%LEL
(Intermittent
Exposure)

Permanent.

TEMPORARY POISONS

Sulphurous
Compounds

Hydrogen Sulphide

Sewage
Digester Gas
Landfill Gas
Sour Gas

Signal output on
gas is reduced.
Effect is noticeable
at
levels above 2 ppm
(continuous
exposure)

Temporary -
performance is
restored when
exposed to clean
air or test gas, but
the
sensor’s resistance
to further poisoning
is affected

Chlorinated
Compounds

Carbon Tetrachloride
Methyl Chloride
Some Freons, such
as R134A,
R152B,
Vinyl Chloride

Solvents, Freons

Signal output on
gas is reduced.
Effect is noticeable
at levels above
100 ppm
(continuous
exposure)

Temporary -
performance is
restored when
exposed to clean
air or test gas, but
the
sensor’s resistance
to further poisoning
is affected

Some
Olefins

Propylene
Styrene
Acrylonitrile

Plastics
Manufacturing

Signal output on
gas is reduced.
Effect is noticeable
at levels above 100
ppm
(intermittent
exposure)

Usually temporary,
except where high
concentrations are
encountered.

3.6.3 Humidity

Catalytic sensors cannot be operated in a condensing atmosphere or where the relative humidity
exceeds 95%. High humidity and condensation can cause significant changes in sensitivity, which
leads to incorrect gas values being read.

3.6.4 Pressure Effects

Catalytic sensors are sensitive to the effects of pressure and should not be operated outside of their
stated range of ±20 kPa.

3.6.5 Air Velocity

Due to the complex dynamics associated within catalytic elements and particle filters, they are slightly
sensitive to changes in air velocity. The GG2 filter assembly has been designed to greatly minimise this

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Содержание Gasguard 2 GG2 DETECTOR

Страница 1: ...Version 3 June 2019 PN 177870 177871 177872 177873 177874 180733 180734 Designed and manufactured in Australia by Ampcontrol Pty Ltd GG2 DETECTOR CH4 O2 CO CO2 SENSOR UNITS User Manual ...

Страница 2: ... The warning symbol highlights a potential risk malfunction or loss of performance Please share these warnings with other operators CAUTION The caution symbol highlights a potential risk of damage to equipment Please share these cautions with other operators NOTE The note symbol highlights key information Please share these notes with other operators ENVIRO The enviro environmental symbol highligh...

Страница 3: ...in this document or from misuse of the information obtained herein The information in this document has been carefully checked and is believed to be entirely reliable with all of the necessary information included AMPCONTROL PTY LTD reserves the right to make changes to any products described herein to improve reliability function or design and reserves the right to revise this document and make c...

Страница 4: ...rview 11 3 2 Key Features 11 3 3 GG2 Display Module 11 3 4 Markings 13 3 5 Electrochemical Sensors 13 3 6 Catalytic Sensors 14 3 7 NDIR Sensors 16 3 8 Enclosure 17 3 9 Certification 18 4 INSTALLATION 19 4 1 General Warnings 19 4 2 Mandatory Installation Practices 19 4 3 Installation Guidelines 20 4 4 Conditions of Safe Use 21 4 5 Mechanical Installation Information 22 4 6 Electrical Installation I...

Страница 5: ...led Copy Refer to Ampcontrol Website for Latest Version Page 5 of 39 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART 7 3 NDIR CH4 30 7 4 NDIR CO2 31 7 5 Catalytic CH4 32 8 EQUIPMENT LIST 33 9 APPROVALS 34 9 1 MDR 0001030 GD 34 9 2 IECEx TRA 16 0020X 34 ...

Страница 6: ...ure 4 GG2 Detector Connector P1 Pin numbering 23 TABLE OF TABLES Table 1 Minimum Marking Information 13 Table 2 Optional Marking Information 13 Table 3 Poisoning of Sensors 14 Table 4 Ingress Protection Rating 17 Table 5 Gas Density Relative to Air 21 Table 6 Conditions of Safe Use 21 Table 7 GG2 Detector connector pin out 23 Table 10 Corrective Maintenance Checks 27 Table 11 Typical Oxygen Cross ...

Страница 7: ...time when the equipment is switched on and the time when the indication reaches and remains within the stated tolerances AS 4641 2007 Electrical apparatus for detection of oxygen and other gases and vapours at toxic levels general requirements and test methods AS 2290 3 1990 Electrical equipment for coal mines maintenance and overhaul Part 3 maintenance of gas detecting and monitoring equipment AS...

Страница 8: ...d removal of the equipment Therefore please read and understand this manual prior to use Competency based training courses are recommended and are available on request 1 1 3 Manual Handling Precautions have been taken to ensure all equipment is safe to handle and free from sharp edges However care should always be taken when handling enclosures and gloves should be worn 1 1 4 Installation Correct ...

Страница 9: ...This meets the requirements of The NSW Government Gazette No 52 Registration of design of Plant Used to Determine or Monitor the Presence of Gas Order 2015 and the performance requirements of AS NZS 4641 2018 Electrical apparatus for detection of oxygen and other gases and vapours at toxic levels General requirements and test methods However does not meet the requirements of AS NZS 4641 2007 Elect...

Страница 10: ...een modified away from its published specifications must not be used Please contact Ampcontrol if the equipment is suspected to be different than that ordered or if it does not match the published specifications 2 3 Storage after Delivery When the equipment is not to be installed immediately proper storage is important to ensure protection of equipment and validity of warranty All equipment should...

Страница 11: ... is factory configured for a specific gas technology type and range The GG2 Detector is IECEx Ex ia Group I certified and the product shall only be used within the limitations of its entity parameters This document covers all gas sensor types for the GG2 Detector The GG2 range of detectors types consists of electrochemical catalytic and infrared sensor types each with built in conversion and digit...

Страница 12: ... Page 12 of 39 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART Figure 1 GG2 Example Compatible Modules iMAC Communication Figure 2 GG2 Detector Overview 1 Proprietary Connector P1 2 Retention clip 3 Serial number sticker 4 NATA sticker 5 Part number sticker 6 Detector Marking label iMAC Fieldbus 2 1 3 5 4 6 ...

Страница 13: ... Sensors work on the principles of chemical oxidation and reduction Electrochemical gas sensors contain electrodes which promote a chemical reaction with the target gas when an electrical potential is applied The chemical reaction of target gas within the sensor creates a current which is proportional to the rate of target gas consumption By measuring this current the volume fraction of target gas...

Страница 14: ...eact and cause the surface temperature of the element to rise Any increase in temperature affects the resistance of the platinum wire causing a small shift in potential across the Wheatstone Bridge proportional to the concentration of the combustible gas The GG2 Detector is temperature compensated and provides a linear output 3 6 2 Poisoning of Sensors Contamination High levels of or long exposure...

Страница 15: ... R134A R152B Vinyl Chloride Solvents Freons Signal output on gas is reduced Effect is noticeable at levels above 100 ppm continuous exposure Temporary performance is restored when exposed to clean air or test gas but the sensor s resistance to further poisoning is affected Some Olefins Propylene Styrene Acrylonitrile Plastics Manufacturing Signal output on gas is reduced Effect is noticeable at le...

Страница 16: ... the sensor through a gas pathway with an optical filter that selects the appropriate wavelength for the gas being detected the presence of this gas reduces the amount of infrared energy reaching the detector This difference in infrared energy with and without gas is used to measure the amount of gas present and is converted to a digital value by the integrated sensor electronics The GG2 Detector ...

Страница 17: ...e enclosure and electrical connection P1 achieves an ingress protection rating of IP66 The gas inlet is fitted with a hydrophobic barrier to prevent liquid water and dust from entering the gas sampling chamber The hydrophobic barrier has a three dimensional structure to minimise the likelihood of total blockages occurring Table 4 Ingress Protection Rating Section Ingress protection rating The encl...

Страница 18: ...ser request the software version of the GG2 Detector provided through the digital interface must be displayed 3 9 3 NSW Government Gazette 52 of June 2015 Extract from MDR Certificate MDR 0001030 GD The Limitations on the use of this Design must include the information below as a minimum a Prior to being used each plant used to determine or monitor the presence of gas must be tested for accuracy a...

Страница 19: ...led has been properly defined designed and approved Any system intended to mitigate the risk of injury needs to be properly designed and implemented Such a system must be the result of structured risk analysis with the outcomes used to define the system requirements These requirements in turn will guide the choice of instrumentation logic solvers and actuators needed to implement the system Unders...

Страница 20: ...s practicable and at a temperature as close to 20 C as practicable Mount the sensor unit in a position that reduces the risk of mechanical damage Mounting should be to a vertical surface pointing downwards allowing for easy wiring access and subsequent servicing It is essential that the sensor be positioned to take into account the expected flow of the gas to be measured Allow sufficient space und...

Страница 21: ...ve to Air Gas Density Hydrogen Lighter than Air Ammonia Methane Carbon Monoxide Carbon Dioxide Heavier than Air Nitric Oxide Oxygen Hydrogen Sulphide Chlorine Nitrogen Dioxide 4 4 Conditions of Safe Use The GG2 Detector has one input circuit connected at P1 made up of pins 1 2 supplying power and ground and pins 3 4 for the communication circuit The input parameters of P1 Pins 1 to 4 are Table 6 C...

Страница 22: ...arget gas 4 6 Electrical Installation Information 4 6 1 Compatible Module The GG2 Detector is a part of a GG2 range of products and is designed to interface directly with compatible modules Contact Ampcontrol for a current list of compatible modules 4 6 2 Remote Cable Assembly The GG2 detector can be mounted remotely from a compatible module using the GG2 remote cable assembly The cable is supplie...

Страница 23: ... GG2 Detector is in conformance to IEC60079 0 section 7 4 2 Dielectric strength requirement 4 6 4 Detector Wiring and Connectors The GG2 Detector has a five pin connector that interfaces directly to compatible modules available from Ampcontrol or the remote cable assembly The connector pins are detailed in Table 7 Figure 4 GG2 Detector Connector P1 Pin numbering Table 7 GG2 Detector connector pin ...

Страница 24: ...y Checks Perform the following preliminary checks 1 Verify that all connections are correct and installation complete as detailed in Section 4 2 Check that the correct supply voltage is available to the GG2 Detector 3 Apply power to the system 5 2 Calibration Before the start of calibration if the GG2 Detector has spent considerable time at low or elevated temperatures please allow the device to s...

Страница 25: ...ensor b Check the gas flow to ensure it is 0 5 to 1 0 litres min c Check the surrounding airflow If the ambient airflow is above 1 5 metres second it can dilute the calibration gas Use a shield or bag over the sensor if there is a high wind speed d Check sensor is not blocked with dust or mud The filter cage can be cleaned out with an antistatic brush before re attempting calibration 5 3 2 Zero Er...

Страница 26: ...e trays conduits etc are in good order with no physical damage Check that sealed wall boxes are free from water and dust ingress internally Door seals are in good condition Check that connected cables are free from cuts abrasions and obvious signs of damage Cable restraints are in good order and correctly fitted Check that labels on equipment wall boxes and cables are present and in good condition...

Страница 27: ... instrument is correct b Check the external interface is wired correctly to a compatible module c Check for loose plug and terminal connections GG2 Detector cannot be Spanned or Zeroed a Gas element has been damaged or is end of life return to manufacturer Measurement range exceeded a Apply span gas and verify the result is within accuracy Device status remains in warm up continuously a Check that...

Страница 28: ...ime for calibration adjustments 3 mins Sensor Unit Detection Method Electrochemical Calibrated Range 0 25 Accuracy 0 3 v v over the range 10 to 25 v v 0 5 v v over the range 0 to 9 9 v v Drift 1 per 3 months Repeatability 1 of reading Sensing Element Life 48 months Resolution 0 1 v v1 Certification IECEx IECEx TRA 16 0020X DPI MDR 0001030 GD 1 The output measurement resolution is consistent across...

Страница 29: ...stments 3 mins Sensor Unit Detection Method Electrochemical Calibrated Range 0 50 ppm 0 100 ppm Accuracy 3 ppm over the range 0 ppm to 29 ppm 6 ppm over the range 30 ppm to 100 ppm Drift 10 per 6 months Repeatability 1 reading Sensing Element Life 24 months Resolution 0 01 ppm1 Certification IECEx IECEx TRA 16 0020X DPI MDR 0001030 GD 1 The output measurement resolution is consistent across all ga...

Страница 30: ...g on ambient temperature Stabilization time for calibration adjustments 3 mins Sensor Unit Detection Method Non dispersive infrared Calibrated Range 0 5 v v Accuracy 0 1 v v or 5 of indication1 Drift 0 1 v v or 5 of indication1 over 3 months Repeatability 0 1 v v or 5 of indication1 Sensing Element Life 5 years Resolution 0 01 v v2 Certification IECEx IECEx TRA 16 0020X DPI MDR 0001030 GD 1 Whiche...

Страница 31: ... Method NDIR Calibrated Range 0 2 0 5 Accuracy 0 05 v v over the range 0 to 0 5 10 of applied test gas over the range 0 5 to 2 5 0 25 v v over the range 2 5 to 5 Drift 0 05 v v v v or 5 of indication1 over 3 months Repeatability 0 05 v v Sensing Element Life 5 years Resolution 0 01 v v2 Certification IECEx IECEx TRA 16 0020X DPI MDR 0001030 GD 1 Whichever is greater 2 The output measurement resolu...

Страница 32: ...ation time for calibration adjustments 3 mins Sensor Unit Detection Method Catalytic2 Calibrated Range 0 5 Accuracy 0 1 v v or 5 of indication1 Drift 0 1 v v or 5 of indication1 over 3 months Repeatability 0 1 v v or 5 of indication1 Sensing Element Life 24 months Resolution 0 01 v v3 Certification IECEx IECEx TRA 16 0020X DPI MDR 0001030 GD 1 Whichever is greater 2 Catalytic sensors require oxyge...

Страница 33: ... sensing needs Refer to GG2B026 GG2 Monitoring Solution Technical Datasheet for a detailed equipment list For more information call customer service on 1300 267 373 Part Number Category Description 177870 5 GG2 Detector NDIR CH4 5 180733 5 GG2 Detector NDIR CO2 5 180734 5 GG2 Detector NDIR CO2 2 177871 5 GG2 Detector CAT CH4 5 177872 25 GG2 Detector EC O2 25 177873 50 ppm GG2 Detector EC CO 50 ppm...

Страница 34: ... term stability test however this test was shortened from 33 days in total to 26 days in total Electrochemical O2 Detector Cross Sensitivity Test AS NZS 4641 Electrical apparatus for detection of oxygen and other gases and vapours at toxic levels General requirements and test methods state that the concentration indicated by the output signal shall not vary from the test gas concentration by more ...

Страница 35: ...915 542 GG2 DETECTOR USER MANUAL GG2B011 Version 3 June 19 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 35 of 39 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

Страница 36: ...915 542 GG2 DETECTOR USER MANUAL GG2B011 Version 3 June 19 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 36 of 39 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

Страница 37: ...915 542 GG2 DETECTOR USER MANUAL GG2B011 Version 3 June 19 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 37 of 39 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

Страница 38: ...915 542 GG2 DETECTOR USER MANUAL GG2B011 Version 3 June 19 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 38 of 39 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

Страница 39: ...915 542 GG2 DETECTOR USER MANUAL GG2B011 Version 3 June 19 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 39 of 39 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

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