Gas Data GFM 436, User Manual

Page 1: ...9ENG8008 GFM436 User Manual Exported on 02 02 2024...

Page 2: ...n to the GFM436 Functions and Features 14 6 2 GFM436 Instrument Specification 16 6 3 Specialist Functionality 18 6 3 1 Lower Explosive Limit 18 6 3 2 Managing Hydrocarbons Using the Hexane Channel 18...

Page 3: ...48 10 1 Gas Velocity Measurement with Optional Vane Anemometer 48 11 Gas Temperature Readings 50 11 1 Gas Temperature Measurement with Optional Temperature Probe 50 11 2 DIP Meter Reading 50 12 Storin...

Page 4: ...Instructions 81 18 2 Important notes 81 18 3 Streamline Measuring Head 81 18 4 Response time 82 18 4 1 Response Time of electronics 82 18 4 2 Response Time of Vanes 82 18 4 3 Technical data MiniAir 6...

Page 5: ...c Compatibility Regulations 2016 91 20 5 2 Equipment and Protective Systems Intended for use in Potentially Explosive Atmospheres Regulations 2016 92 20 6 Notified body 92 20 7 Additional information...

Page 6: ...Gas Data Contact Information 3 https gasdataltd atlassian net wiki spaces IMSM pages 528548839 Gas Data Contact Information Handheld Gas Analyser for Landfill 6 1 Handheld Gas Analyser for Landfill G...

Page 7: ...oduct Text and pictures in the manual are not binding Copyright 2023 All rights to translation adaptation and reproduction by any process reserved in all countries No part of this document may be copi...

Page 8: ...9ENG8008 GFM436 User Manual GFM436 8 3 GFM436 The GFM436 gas analyser is part of the GFM range designed and manufactured by Gas Data Ltd...

Page 9: ...xide sensors and a combination of industry standard electrochemical gas sensor cells A variety of external sensors can be plugged in e g vane anemometer to measure gas velocity or a temperature probe...

Page 10: ...or Male Metal 18812 Chrome Plate Brass Coupling 1 8 ID Hose St Thru 20710 GFM Click Sample Pipe Connector Male plastic 18934 GFM426 and GFM526 Sample Pipe 20726 GFM Sample Pipe 17227 GFM43x Sample Tub...

Page 11: ...1 Universal DC In Car Multi Voltage Power Adaptor 21266 GFMxxx North America Charger Foot Blue Bag 22626 Accessories USB Download cable 16501 Brass Temperature Probe 16503 Leather cover 16781 GFM Vane...

Page 12: ...instrument in ambient temperatures outside the range of 10 to 40 C 14 F to 104 F The following points must be observed The instrument must be recharged in the non hazardous area The instrument must b...

Page 13: ...sing the charger supplied Ensure correct filter is used on the Gas In port If any doubt please contact the manufacturer Use only the manufacturer s spares and accessories See spares list For further i...

Page 14: ...nd brownfield contaminated land sites and landfill sites It is lightweight small and robustly manufactured in a weather resistant case making it suitable for use even in challenging field applications...

Page 15: ...tery packs and an in car 12V DC powered charger are also available as optional extras To help conserve battery life the GFM436 features an auto power off facility It will switch itself off after 15 mi...

Page 16: ...USB connection cable 6 2 GFM436 Instrument Specification General Ex Rating to II 2 G Ex ib IIB T1 Gb Ambient Temp Range 10 to 40 C 14 F to 104 F N B the instrument is EX certified to 20 C 4 F but the...

Page 17: ...3 0 100 20s 0 to 100 LEL 0 1 4 LEL 30s Carbon Dioxide 0 to 100 0 1 0 3 5 3 0 40 3 0 40 20s Oxygen 0 to 25 0 1 0 5 20s Atmospheric Pressure 800 to 1200 mbar 5 mbar 1 mbar resolution 20s H2S 2000 ppm 10...

Page 18: ...heric proportions with respect to atmospheric nitrogen This is the worst case so if the gas sample is taken from a location where the oxygen content is depleted e g due to biological demand then the L...

Page 19: ...successful or not Boreholes can be re measured knowing that readings are in scale by referencing the original readings taken No more waiting for samples to come back from the lab Boreholes across a s...

Page 20: ...diminish the PID response of a RAE Systems unit to only one tenth of the correct value thus needing a PID compensation factor of 10 Instrument characteristics when subjected to high levels of methane...

Page 21: ...ttery cover or inlet housing has been removed or unscrewed For full information and details see the chapter on safety and the appendix on ATEX UKEX and IECEx Certification 6 5 In the Case GFM series i...

Page 22: ...9ENG8008 GFM436 User Manual GFM436 Product Specification 22...

Page 23: ...of three states Solid red in fast charge mode 800mA Solid green terminated fast charge mode Alternating red green In an indeterminable state not suitable for charging This is usually due to temperatur...

Page 24: ...9ENG8008 GFM436 User Manual GFM436 Product Specification 24 6 7 GFM436 Connections...

Page 25: ...ccessories Vane anemometer Air velocity measuring device Instructions and information can be found in the Gas Velocity Readings chapter Brass Temperature Probe Gas line temperature measuring device In...

Page 26: ...er Manual GFM436 Product Specification 26 In Car charger additional power adapter available for purchase on request Gas Cylinder and demand flow regulator available for User Calibration see the User C...

Page 27: ...letters WRM appear in the top right hand corner of the display as shown Please wait until WRM disappears before proceeding The screen shows the instrument type its recalibration date the battery leve...

Page 28: ...he operation screens Each operation screen Gas Pressure Valve comment and Velocity Temperature has the following functions Run the pump sample Store readings Viewing more options in the menu Four read...

Page 29: ...nt For information on storing the data please the chapter on Storing Data 7 3 Reading the Displays Before a sample is first taken after powering up the instrument the readings are dashed and blacked o...

Page 30: ...9ENG8008 GFM436 User Manual GFM436 Operation 30...

Page 31: ...9ENG8008 GFM436 User Manual GFM436 Operation 31 The Right Soft Key will toggle the pump sample on and off changing the readings...

Page 32: ...creen will display live readings being taken from the Gas Sample line or connected accessory Pressing the Right soft key again will stop the pump sample When finished with the sample turn off the pump...

Page 33: ...9ENG8008 GFM436 User Manual GFM436 Operation 33 These latched readings can be stored in the instruments non volatile FLASH memory by pressing the left soft key The menu shown below appears...

Page 34: ...9ENG8008 GFM436 User Manual GFM436 Operation 34 For information on the Store function on this display see the chapter on Storing Data Pressing the middle soft key will open the menu shown below...

Page 35: ...Specific instructions on this can be found in the chapter on Logging Set Up View View readings stored on the instrument Specific instruction can be found below in the chapter on View Reading Display...

Page 36: ...9ENG8008 GFM436 User Manual GFM436 Operation 36 For instruction on understanding the ID structure see the chapter on Data Storage ID Structure...

Page 37: ...elected scroll down to view the readings Readings can be deleted by pressing the middle soft key 7 5 Clock Display All stored readings are stamped with the date and time To change the date or time of...

Page 38: ...ple pipe fitted with the filter to the Gas In port at the top of the instrument To do this push the metal latch down then insert the connector at the end of the sample pipe The port will lock the pipe...

Page 39: ...ey will toggle the pump on and off and will display Start Pump or the elapsed pump run time When the elapsed time is displayed pressing the soft key beneath will stop the pump When the pump is running...

Page 40: ...e stabilised press the Right Soft Key again to freeze the reading When the pump is stopped the values a frozen at the last measured value Turn off the gas tap and remove the gas pipe IMPORTANT Take gr...

Page 41: ...row key will navigate to Gas Display 2 The Right Soft Key will toggle the pump on and off and will display Start Pump or the elapsed pump run time When the elapsed time is displayed pressing the soft...

Page 42: ...Soft Key will toggle the pump on and off and will display Start Pump or the elapsed pump run time When the elapsed time is displayed pressing the soft key beneath will stop the pump When the pump is r...

Page 43: ...9ENG8008 GFM436 User Manual Gas Readings 43 When finished turn off the gas tap and remove the gas pipe IMPORTANT Take great care when connecting the pipe to the gas tap to avoid gas leakage...

Page 44: ...requires a connection to be made to the Flow in port as shown in the diagram above The Flow Sample pipe is the section of pipe without the filter This can be separated from the Gas Sample pipe at the...

Page 45: ...ped the values are frozen at the last measured values When a sample is restarted the readings are unfrozen and the peak flow will be reset to the current instantaneous flow If the instantaneous flow g...

Page 46: ...t Key Zero Press the right soft key to stop sampling To measure the Static Pressure connect the Flow Sample pipe to the SP connection as shown in the diagram above The flow sample pipe is the section...

Page 47: ...en the sample is stopped the values are frozen at the last measured values Pressing the Left Soft Key labelled Store or the OK Key will bring up the Store Menu Window For details of the Store function...

Page 48: ...t at the top of the instrument Locate a suitable gland or bung on the pipework and insert the anemometer When the anemometer is as far into the gland as possible without opening the tap open the gas t...

Page 49: ...ain the reading The anemometer can now be removed from the pipe IMPORTANT Take great care when inserting the anemometer to avoid gas leakage IMPORTANT Take great care when removing the anemometer In p...

Page 50: ...h location ID To change the DIP Level select the field and press OK Then use the Left and Right Key to highlight the digit to be changed and use the Up and Down Keys to increment or decrement that num...

Page 51: ...08 GFM436 User Manual Gas Temperature Readings 51 IMPORTANT The DIP level will be saved on exiting the display but switching the instrument off without exiting the display may cause entered data to be...

Page 52: ...figure IDs for their readings to allow for multiple users sites or sample points to be defined 12 1 Storing Data Once a reading has been taken or while a reading is being taken pressing the left soft...

Page 53: ...rage ID structure This section will explain how the readings can be marked with an ID with up to 3 different levels Please note the following diagrams are examples of the structure behind the filing s...

Page 54: ...then it is saved in the equivalent of a folder within the top level that is named that specific name And so if the reading is stored under an ID1 and an ID2 then it is the equivalent of being stored...

Page 55: ...amples of how a user may configure the IDs The first example is a very simple set up This may be used if the instrument has one user on one site The second example shows a much more complicated set up...

Page 56: ...9ENG8008 GFM436 User Manual Storing Data 56...

Page 57: ...et up ID tags on the instruments to symbolise particular sample points or to symbolise anything the customer desires Instructions on setting up these sample point IDs are found below On the Gas Readin...

Page 58: ...9ENG8008 GFM436 User Manual Storing Data 58...

Page 59: ...correct names scroll down using the arrow keys and select Create sample point using the OK key This menu can also be used to delete sample points Sample points are selected when storing data by pressi...

Page 60: ...GFM436 User Manual Storing Data 60 Once the sample point is created the display will read ID Created unless the ID already exists in which case you will be notified when the display reads ID already...

Page 61: ...nded Data Logging facility This allows the instrument to be programmed to carry out repeated samples over a defined period To access the Logging Setup Screen press the Middle Soft Key Menu from any of...

Page 62: ...list on screen They are accessed by scrolling up and down with the arrow keys and pressing the OK key to edit IMPORTANT Logging must be set up against a named ID number If not the readings will not sa...

Page 63: ...OK will scroll through these options When you have selected the required value use the Up Down arrows to move to the next parameter A selection of 3 minutes for example will allow the pump will run f...

Page 64: ...ermined by the remaining store space If Total Logs is set to 0 it will Log continually until there is no more store space remaining To change Total Logs select the field and press OK Then use the Left...

Page 65: ...mber of samples which have been logged Logged When the pump is running and it is sampling a countdown timer and Sampling will be shown when this reaches 0 the measurements will be stored and a popup w...

Page 66: ...remaining memory on the device After all the samples are complete i e number of total logs has been reached another pop up box will show saying logging complete If the battery save function is on the...

Page 67: ...he instrument wakes itself as manually switching the instrument on or off during logging may interrupt sampling or cause a log to be missed or not taken 12 6 Logging Setup Unable to render include or...

Page 68: ...propriate gas at the specified concentration needs to be connected to the Gas In port at the top of the instrument with the valve open when calibrating a point It is recommended that a demand flow reg...

Page 69: ...ibrate button Press the Right Soft Key labelled Calibrate to go to the User Calibration Display The use of pressurised cylinders of test gases may produce hazards including the following High pressure...

Page 70: ...elected They are as follows Reset factory delta When an instrument is User Calibrated the Deltas are adjusted These are the three numbers shown below the gas reading These represent the adjustment rat...

Page 71: ...available To calibrate an instrument the pump must be activated when connected to the correct gas source Allow the instrument to sample the gas for at least 3 minutes then when the reading stabilises...

Page 72: ...el being calibrated and is summarised in the following table Gas Channel Zero Cal Point Low Range Cal Point High Range Cal Point CH4 0 0 5 0 60 0 CO2 0 0 5 0 40 0 O2 0 0 6 0 20 9 H2S 0ppm 1500ppm 3000...

Page 73: ...9ENG8008 GFM436 User Manual User Calibration 73...

Page 74: ...ion point If the Middle Soft Key labelled Calibrate does not appear this means that it is currently not possible to calibrate the desired point Also the valve must be open for the gas to flow and star...

Page 75: ...l Auto Turn Off 75 14 Auto Turn Off To help prolong the time between charges the instrument will automatically turn off after 15 minutes of inactivity This does not occur whilst the instrument is conn...

Page 76: ...ions must be met and are essential to the instrument s functionality and reliability It must be stored at room temperature It must be powered up and have a sample taken at least once a week Each day i...

Page 77: ...w Conversion Charts The following chart is included to enable the operator to make quick and easy conversions from velocity measurements provided by the vane anemometer to flow rates The formula for c...

Page 78: ...sive gas air mixture is likely to occur in normal operation Zone 2 An area in which an explosive gas air mixture is not likely to occur in normal operation and if it does occur will exist only for a s...

Page 79: ...The safety circuits used will prevent the generation of a spark or temperature capable of igniting the gas even if the instrument develops TWO faults ib The safety circuits used will prevent the gener...

Page 80: ...ane T1 Methane T1 17 4 Testing and Certification This instrument has been submitted for both European Type Assessment United Kingdom Type Assessment and IEC Type Assessment These assessments examine t...

Page 81: ...rument 18 2 Important notes Every vane anemometer has a designed operating range The transducers have been developed and produced for this envisaged operating range The calibration corresponds to the...

Page 82: ...ening 16mm 0 6 Probe length 165mm 6 5 Storage temp 65 to 150 C 85 F to 302 F 18 5 Cleaning and maintenance Vane anemometers are precision products which will give fault free service if correctly handl...

Page 83: ...t and probe must be switched off or disconnected prior to cleaning As the probes are highly sensitive measuring instruments they must be cleaned with very great care Fibres or other foreign bodies can...

Page 84: ...ater before lubrication with kerosene After cleaning the probe rub it dry externally with a clean dry fluff free cloth Leave the top part of the impeller to dry for approx 30 minutes 18 5 3 Cable exte...

Page 85: ...tly non productive time and in the event of damage to the snap head enables the operator to have the probe back in service in a matter of seconds by simply changing the snap head 18 5 5 Checking facto...

Page 86: ...ther necessary maintenance calibration and repair as may be required according to the use of the equipment in the reasonable judgement of the manufacturer Normal wear and tear and parts damaged by abu...

Page 87: ...FM406 GFM426 GFM436 GFM526 and GFM610 20 1 1 The Electromagnetic Compatibility Directive 2014 30 EU I hereby certify that the apparatus described above conforms with the protection requirements of Cou...

Page 88: ...Electrical apparatus for explosive gas atmospheres General requirements EN 60079 11 2012 Explosive atmospheres Equipment protection by intrinsic safety i The equipment is marked II 2G Ex ib IIB T1 Gb...

Page 89: ...A 20063 Cernusco sul Naviglio Milano Italy Notified Body responsible for the ATEX QAN Intertek Testing Services NA Ltd Notified Body number 2903 14920 135 Avenue Edmonton AB T5V 1R9 Canada 20 3 Addit...

Page 90: ...roducts marked with note A in the EMC column deviate from EN 50270 2015 as described below Gas readings may become erratic when exposed to high intensity radiated EM fields of specific frequencies 2 E...

Page 91: ...M406 GFM426 GFM436 GFM526 and GFM610 20 5 1 The Electromagnetic Compatibility Regulations 2016 I hereby certify that the apparatus described above conforms with the protection requirements of The Elec...

Page 92: ...n the requirements of the following harmonized standards Ref No Title EN IEC 60079 0 2018 Electrical apparatus for explosive gas atmospheres General requirements EN 60079 11 2012 Explosive atmospheres...

Page 93: ...1UKEX0026X Notes relating to UKCA marking 1 Entries in this column may be Yes Product conforms to the EMC Directive N R Product is not required to conform to the EMC Directive Products marked with not...

Page 94: ...9ENG8008 GFM436 User Manual Appendix E Declarations of Conformity 94 Graham Sanders Managing Director 09 10 2023...

Page 95: ...ertificate 95 21 Appendix F ATEX UKEX and IECEx Certificate The first page of each ATEX UKEX and IECEx Certificate can be seen in the paper copy of this manual Full versions are available in the onlin...

Page 96: ...9ENG8008 GFM436 User Manual Appendix F ATEX UKEX and IECEx Certificate 96...

Page 97: ...9ENG8008 GFM436 User Manual Appendix F ATEX UKEX and IECEx Certificate 97...

Page 98: ...t device and must remain accessible at all times This product can work in a relative humidity of 15 to 90 This product can work in a pollution degree of 1 2 3 or 4 The product can be used outdoors and...

Page 99: ...QZ Squeeze on in Engineering mode CAL When string or cal file data is corrupted BSY When erasing or formatting storage ILL When a request for readings is made when the cal file configuration is suspec...