Ampcontrol Gasguard 65-6551-CH4 Series Скачать руководство пользователя

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User Manual Part Number: 165714

Version: 6, March 2019

Designed and manufactured in Australia by Ampcontrol Pty Ltd

CATALYTIC METHANE SENSOR

ATEX CERTIFIED MODEL

User Manual

Содержание Gasguard 65-6551-CH4 Series

Страница 1: ...User Manual Part Number 165714 Version 6 March 2019 Designed and manufactured in Australia by Ampcontrol Pty Ltd CATALYTIC METHANE SENSOR ATEX CERTIFIEDMODEL User Manual ...

Страница 2: ...N PART WARNING The warning symbol highlights a potential risk of injury or death 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 highlights...

Страница 3: ...ssions 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...

Страница 4: ...DUCT OVERVIEW 8 3 1 Sensor Details 9 3 2 Amplifier Electronics PCB 10 3 3 Enclosures 10 4 INSTALLATION 11 4 1 General Warnings 11 4 2 Product Safety Markings 11 4 3 Recommendations 12 4 4 Sensor Location 12 4 5 Mandatory Installation Practices 12 4 6 Mechanical Installation Information 13 4 7 Electrical Installation Information 14 5 COMMISSIONING AND CALIBRATION 15 5 1 Preliminary Checks 15 5 2 Ga...

Страница 5: ... TABLE OF FIGURES Figure 3 1 Gasguard CH4 Sensor Stainless Steel Housing 10 Figure 4 1 Catalytic Sensor Dimensions 13 Figure 4 2 Electrical Connection Diagram 14 Figure 4 3 Analogue Output Maximum Loop Resistance 14 Figure 5 1 Gasguard Sensor Control Panel 17 TABLE OF TABLES Table 1 Sensor Cell Cross Sensitivity 9 Table 2 Gasguard Sensor Display Status Codes 15 Table 3 Manufacturer s Periodic Main...

Страница 6: ...ual must be observed as an aid towards achieving the safest possible installation Persons responsible for installation maintenance or operation must observe the following instructions 1 1 1 Changes to Equipment Changes in the design and modifications to the equipment are not permitted Unauthorised changes made to the hardware or operating firmware will void the manufacturer s warranty and may comp...

Страница 7: ...proval documentation for your safety file as applicable prior to wrapping being discarded 2 2 Inspection Equipment that is found to be damaged or has been modified away from its published specification 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 eq...

Страница 8: ...uction Reliable Certified Intrinsically Safe Ex ia LCD Display Non Intrusive Closed Case Calibration NOTE This manual provides commissioning calibration and maintenance instructions for the Ampcontrol Gasguard Sensor Units Because the units are passive monitoring devices operating instructions are not applicable to this equipment NOTE The chemical symbols for toxic gases and oxygen are used extens...

Страница 9: ...tively detect the presence of all flammable gases It is unable to distinguish the difference between gases so the sensor will display a reading if any flammable gas is present The table below details the cross sensitivity data for a methane sensor Table 1 Sensor Cell Cross Sensitivity Gas Concentration Reading v v Acetic Acid 4 0 1 45 Acetone 2 6 2 5 Ammonia 15 6 25 Benzene 1 2 2 0 n Butane 1 8 2 ...

Страница 10: ... provided for input power power supply return and current loop signal output The electronics require 12VDC operating voltage and transmits a signal in the range of 4 20mA The 4mA signal level indicates a zero gas concentration The 20mA signal indicates that the sensor cell has detected a full span gas concentration ZERO and SPAN adjustment reed relays located on the PCB are used for calibration of...

Страница 11: ...sk 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 Understanding the needs of the system will ensure proper selection of equipment 4 1 3 Ensure that the Gasguard CH4 Sensor will properly perform the required functions within the system design It is import...

Страница 12: ...rrents prevent mixing Places such as corners roof or cable spaces are examples For monitoring in areas where there are no air currents mount the sensor as high as possible For areas that are ventilated and have good airflow positioning is not as critical since general mixing will occur For these areas it is recommended to locate the sensor around or just above head height For applications requirin...

Страница 13: ... of 25 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART 4 6 Mechanical Installation Information 4 6 1 Enclosure Dimensions Figure 4 1 Catalytic Sensor Dimensions 4 6 2 Mounting Arrangements The Gasguard CH4 Catalytic Sensor is a panel mounted unit see enclosure dimensions for mounting point configuration TOXIC FLAMMABLE 170 198 ...

Страница 14: ... allows the connector to be unplugged from the PCB to attach the wiring and then be plugged back into the board A second wiring assembly connects the supply and signal connections from the incoming terminals to the Amplifier electronics PCB Connector J5 within the sensor enclosure Connector J5 is the connection point for incoming cables Figure 4 2 shows these electrical connections Figure 4 2 Elec...

Страница 15: ... calibrated to traceable standards However before putting the sensors into operation it is important to verify this calibration This is especially important if the instruments are commissioned sometime after delivery 5 1 Preliminary Checks Perform the following preliminary checks Verify that electrical connections are correct and that they comply with the appropriate standards Apply power to the s...

Страница 16: ...ed with a carrier gas This carrier gas must be air for the Gasguard s catalytic sensor to operate correctly Methane balanced with nitrogen must never be used to verify or calibrate the sensor since this will inhibit the function of the catalytic sensor bead Calibration gas should ideally be 50 of full scale However sometimes due to practical restraints and safety reasons the gas may need to be les...

Страница 17: ... for 5 seconds e The sensor display 5 will show SAV to confirm that it has saved the zero setting f Turn off the gas flow to the sensor 5 5 Span Calibration Perform a span calibration as follows noting that the gas must be flowing for the duration of the operation a Apply methane to the sensor at the rate of 0 5 to1 litre per minute and allow the reading to stabilise b If the reading lies outside ...

Страница 18: ... become obscured by dirt Observations would typically be Check that equipment enclosures cable 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 ...

Страница 19: ...nspections of equipment These will include checks for both basic mechanical integrity and electrical performance checks The schedule given below is the manufacturer s recommendations Table 3 Manufacturer s Periodic Maintenance Recommendation Time Frame Maintenance Daily Verify operation by visually checking the reading on the respective control unit monitor Investigate any abnormal deviations from...

Страница 20: ... to the Amplifier PCB is within specification d Check for loose plug and terminal connections e If the above checks indicate no faults replace the Amplifier electronics PCB Sensor cannot be Spanned or Zeroed a Check the supply voltage to the sensor is within specification b Check for loose plug and terminal connections c Verify the calibration gas being used is of the correct type and is within it...

Страница 21: ...nge 5 Max Gas Applied 6 Overall Linearity 5 FSS Maximum Drift Zero 5 FSS per month Sensitivity 5 FSS per month Response Time T90 15 seconds typical Sensing Element Life 2 years Temperature Range 10 to 50 C Resolution 0 10 Humidity 0 95 Storage Temperature 10 to 70 C Certification ATEX Baseefa09ATEX0204X see Appendix A 8 EQUIPMENT LIST Part Number Description 143346 ATEX Certified CH4 Sensor Transm...

Страница 22: ...AS SENSOR USER MANUAL GSB076 Version 6 March 2019 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 22 of 25 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART APPENDIX A ATEX CERTIFICATION ...

Страница 23: ... GASGUARD CH4 GAS SENSOR USER MANUAL GSB076 Version 6 March 2019 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 23 of 25 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

Страница 24: ... GASGUARD CH4 GAS SENSOR USER MANUAL GSB076 Version 6 March 2019 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 24 of 25 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

Страница 25: ... GASGUARD CH4 GAS SENSOR USER MANUAL GSB076 Version 6 March 2019 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 25 of 25 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

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