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Ampcontrol Pty Ltd 

– ABN 28 000 915 542 

GG2 DISPLAY USER MANUAL 

 GG2B023 Version 3 

– JUNE/19 

 

 

Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version 

 

 Page 74 of 82 

 

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8.2 Equipment Maintenance 

Refer to Section 5 for an overview of calibration and testing procedures. 

 Periodic Maintenance 

Periodic maintenance consists mainly of scheduled checks to ensure the instrument remains in 
adjustment and gives the required response to the sampled gas. For recommended maintenance tasks 
and schedules, refer to the AS/NZS 2290 series. 

 Corrective Maintenance 

During maintenance, it is vital to ensure that suitable procedures are followed to prevent any abnormal 
sensor signal from unintentionally operating any fault, warning or alarm status indicator, or equipment 
control function. Consult the relevant control unit manual for details as to how to do this. 

There are no user serviceable parts. If a fault develops, the detector must be returned to an accredited 
repair facility. 

 

Table 17: Corrective Maintenance Checks 

Fault 

Checks 

GG2 Detector will 

not respond to 

digital commands 

a)  Check that voltage and polarity applied to the 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 voltage and polarity applied to the instrument is correct.  
b)  Turn the instrument off for >1 min before turning it back on. 
c)  Gas element has been damaged or is end of life, return to 

manufacturer. 

T90 Time 

exceeded 

a)  Inspect and remove blockages from the filter cage. 
b)  Gas element has been damaged or is end of life, return to 

manufacturer. 

 

8.3 Disposal 

 

ENVIRO 

 

The electronic equipment discussed in this manual 

must not be 

treated as general waste

. By ensuring that this product is disposed of 

correctly, you will be helping to prevent potentially negative 

consequences for the environment, which could otherwise be caused 

by incorrect waste handling of this product. 

 

 

 

Содержание Gasguard GG2 DISPLAY

Страница 1: ...Version 3 June 2019 Designed and manufactured in Australia by Ampcontrol Pty Ltd GG2 DISPLAY 4 20mA IMAC RS485 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 highlight...

Страница 3: ...n 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 ch...

Страница 4: ... 3 2 Key Features 12 3 3 Markings 14 3 4 Enclosure 15 3 5 Certification 15 4 INSTALLATION 16 4 1 General Warnings 16 4 2 Mandatory Installation Practices 17 4 3 Conditions of Safe Use 17 4 4 Mechanical Installation Information 18 4 5 Electrical Installation Information 22 5 COMMISSIONING AND CALIBRATION 27 5 1 Preliminary Checks 27 5 2 System Calibration 27 5 3 Electrochemical and Catalytic Zero T...

Страница 5: ...D IN PART 6 5 Gas Alarm and Setpoint Configuration 57 6 6 System Status and Information 59 6 7 Display Maintenance 62 7 REMOTE OPERATION 65 7 1 GG2 Detector Type Table 65 7 2 Modbus 65 7 3 iMAC 69 8 SERVICE MAINTENANCE DISPOSAL 73 8 1 Equipment Service 73 8 2 Equipment Maintenance 74 8 3 Disposal 74 9 SPECIFICATIONS 75 9 1 GG2 Display 75 10 EQUIPMENT LIST 76 11 APPROVALS 77 11 1 IECEx ITA 07 0017X...

Страница 6: ...anded Connector 26 Figure 15 Maintenance 29 Figure 16 Gas Calibration 29 Figure 17 Zero Adjustment Apply Zero Gas 29 Figure 18 Zero Adjustment Set Zero 29 Figure 19 Zero Adjustment Saving Changes 30 Figure 20 Span Adjustment Span Value 30 Figure 21 Span Adjustment Saving Changes 30 Figure 22 Gas Calibration 31 Figure 23 Gas Calibration Warning 31 Figure 24 Scaling Adjustment Apply Zero Gas 31 Figu...

Страница 7: ... Screen when in warmup 48 Figure 56 Display Sleep Mode 48 Figure 57 Connecting a Detector for the first time 49 Figure 58 Different Gas Sensor Warning 50 Figure 59 Erasing the Old Detector Image 51 Figure 60 Updating the Detector Image 51 Figure 61 Isolate Detector 52 Figure 62 Isolate Detector Confirmation 52 Figure 63 Detector Isolated 52 Figure 64 Calibration Notice left 4mA Calibration right 5...

Страница 8: ...G2 Display System S1 Connector Pin Out 23 Table 5 GG2 Display Sensor S2 Connector Pin Out 24 Table 6 Recommended Calibration Gases 28 Table 7 Response time determination 33 Table 8 Telemetry Test Target Values 36 Table 9 Example of Permyriad to Gas Concentration Conversion 53 Table 10 Modbus Protocol Configuration Settings 54 Table 11 iMAC Protocol Configuration Addresses 54 Table 12 iMAC Protocol...

Страница 9: ...nts 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 NZS 60079 29 1 2008 Explosive atmospheres part 29 1 Gas detectors Performance requirements of detectors for flammable gases IEC 60079 0 2011 Explosive atmospheres Part 0 Equipment General requirements IEC 60079 11 2011 Explosive atmosphere...

Страница 10: ...tted Unauthorised changes made to the hardware or operating firmware will void the manufacturer s warranty and may compromise the integrity of the system into which it is installed and other connected equipment Equipment Knowledge Experience with or understanding of this equipment is essential for the safe installation and removal of the equipment Therefore please read and understand this manual p...

Страница 11: ...l 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 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 equipm...

Страница 12: ...ay connects to a variety of compatible detector modules via the robust proprietary connector An optional Remote Cable Assembly is available for mounting compatible modules up to 10 metres from the GG2 Display 3 2 Key Features Certified Intrinsically Safe Ex ia I Ma Rugged stainless steel construction Failsafe architecture and digital interface Extensive self diagnostic routines Economical LCD Disp...

Страница 13: ...TION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART Figure 2 GG2 Display Overview 1 LCD Display 2 LED Indicators 3 Proprietary Connector S2 4 Magnetic Keypad 5 System Connector S1 6 Mounting Tabs IP Display Enclosure GG2 Display Module IECEx TRA 18 0003X IECEx ITA 07 0017X System Plug S1 Terminal Strip Sensor Plug S2 Gland Optional Figure 3 GG2 Display Block Diagram 2 1 6 5 4 3 6 6 6 ...

Страница 14: ...led Copy Refer to Ampcontrol Website for Latest Version Page 14 of 82 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART Figure 4 Glanded GG2 Display 3 3 Markings GG2 Display The GG2 Display Marking is shown below in Figure 5 Figure 5 GG2 Display Marking ...

Страница 15: ...ions and provides for easy installation Ingress protection rating The GG2 Display has been designed fit for purpose for the harsh environment of an underground coalmine The enclosure and electrical connection when mated achieves IP66 3 5 Certification Entity parameters listed on the certificate must be taken into account during system commissioning The apparatus is designed to be used in hazardous...

Страница 16: ...s risk If in doubt as to the nature of the limitations or their implication consult a competent authority such as a supervisor or Ampcontrol technical representative Ensure that the application into which the unit is being installed 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 ...

Страница 17: ... in accordance with the relevant installation Standards Codes of Practice Modifications must not be made to any part of the unit As supplied the unit is built to and complies with the relevant standards Modifications to its construction will render the unit non compliant Complete and accurate records of the installation must be kept as part of the site installation Confirm the Intrinsically Safe p...

Страница 18: ... SINGLE SET OF INPUT PARAMETERS WITH THE LUMPED PARAMETERS CONNECTED AT THE SENSOR INTERFACE TAKEN INTO ACCOUNT IN THE POWER SUPPLY S ENTITY BALANCE NOTE 4 P2 4 IS THE ISOLATED CHASSIS CONNECTION 2 The GG2 Display Module must be housed in an enclosure suitable for Group I that provides a degree of protection not less than IP54 as per IEC 60529 WARNING The connections shown above are for the certif...

Страница 19: ...ONTROL PTY LTD NOT TO BE REPRODUCED IN PART Dimensions While mounting points are backwards compatible with Ampcontrol s existing Gasguard equipment the additional space required by the GG2 Display Sensor assembly must be taken into account during installation The remote head assembly will require a bracket modification to mount the detector Figure 6 GG2 Display Dimensions mm Figure 7 Glanded GG2 D...

Страница 20: ...EPRODUCED IN PART Figure 8 GG2 Display and CH4 Detector Dimensions mm Figure 9 GG2 Remote Cable Assembly Dimensions mm Mounting Arrangements 4 4 2 1 GG2 Display The GG2 Display is mounted using the four screw tabs The custom plug interface allows subsequent mounting of compatible modules Optionally the compatible modules may be mounted up to 10 meters away using the optional remote cable assembly ...

Страница 21: ...r mounting hole locations The three mounting holes are spaced 50mm on centre Connecting and Disconnecting a GG2 Detector The process for connecting and disconnecting the GG2 Detector is outline in Figure 10 and detailed in the following subsections The detector must be isolated or in sleep mode prior to connection disconnection Refer to Section 6 3 for more information Figure 10 Connecting Disconn...

Страница 22: ...se 4 5 Electrical Installation Information Compatible Module The GG2 Display 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 Remote Cable Assembly The compatible modules can be mounted remotely from the GG2 Display using the GG2 remote cable assembly The cable is supplied in 10 metre leng...

Страница 23: ...CONTROL PTY LTD NOT TO BE REPRODUCED IN PART Detector Wiring and Connectors The GG2 Display has two connection facilities S1 for the system interface and S2 for the sensor interface The connector pins are shown below Figure 11 GG2 Display System S1 Connector Top Pin Out Table 4 GG2 Display System S1 Connector Pin Out Pin Function S1 1 Data S1 2 VDC S1 3 0VDC S1 4 Data S1 5 4 20mA OUT S1 6 Screen n...

Страница 24: ...rol Website for Latest Version Page 24 of 82 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART 1 5 2 4 3 Figure 12 GG2 Display Sensor S2 Connector Bottom Pin Out Table 5 GG2 Display Sensor S2 Connector Pin Out Pin Function S2 1 Power S2 2 Ground S2 3 Data S2 4 Data S2 5 Chassis ...

Страница 25: ...ISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART GND 4 20mA VIN CHASSIS RS485 RS485 L L GND VOUT DATA DATA V V Data Data EARTH Data V 0VDC Data 4 20mA SCREEN GG2 Display Module S2 P1 P2 P3 System Connector 1 1 1 1 Detector Connector Alternate Connections 1 GG2 Display Enclosure System Connector Figure 13 Electrical Connections Display Enclosure with System Connector ...

Страница 26: ... FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART GND 4 20mA VIN CHASSIS RS485 RS485 L L GND VOUT DATA DATA V V Data Data EARTH V 4 20mA V RS485 RS485 L1 L1 SCREEN GG2 Display Module GG2 Display Enclosure Glanded version S2 P1 P2 P3 Terminal Strip 1 1 1 1 Detector 1 Figure 14 Electrical Connections Display Enclosure with Glanded Connector ...

Страница 27: ...ly power to the system 5 2 System Calibration Applying Test Gas There are several test and calibration procedures which must be conducted at intervals to ensure ongoing detector performance Most of these procedures involve applying a test gas to the detector using the GG2 Calibration Cup The gas should be applied at a rate of 0 5 litres per minute Detector Tests and Calibration If the GG2 Detector...

Страница 28: ...1st point 2 0 CO2 and 2nd point 3 0 CO2 mixed with Synthetic Air or 100 Nitrogen GG2 Detector NDIR CO2 2 Synthetic Air or 100 Nitrogen 1 CO2 with Synthetic Air or 100 Nitrogen GG2 Detector CAT CH4 5 Synthetic Air 2 CH4 balance with Synthetic Air GG2 Detector EC CO 100ppm Synthetic Air 50ppm CO balance with Synthetic Air GG2 Detector EC CO 50ppm Synthetic Air 25ppm CO balance with Synthetic Air GG2...

Страница 29: ...LTD NOT TO BE REPRODUCED IN PART Figure 15 Maintenance 3 For Catalytic and Electrochemical Detections access ZERO ADJUSTMENT menu Figure 16 Gas Calibration 4 Apply zero gas and GG2 Calibration Cup Figure 17 Zero Adjustment Apply Zero Gas 5 It is recommended to apply zero gas for 180 seconds prior to adjustment Once the reading is stable press the keypad enter button to save the zero adjustment Fig...

Страница 30: ...ed gas listed in Table 2 The following instructions detail the SPAN ADJUSTMENT procedure 1 Access the GG2 maintenance menu via the display UI using the magnetic calibration tool Refer to Section 6 1 for an overview of navigating the user interface and the menu structure 2 Access the GAS CALIBRATION menu Refer to Figure 15 3 For Catalytic and Electrochemical Detections access SPAN ADJUSTMENT menu R...

Страница 31: ... maintenance menu via the display UI using the magnetic calibration tool Refer to Section 6 1 for an overview of navigating the user interface and the menu structure 2 Access the GAS CALIBRATION menu Refer to Figure 15 3 Access the SCALING ADJUSTMENT menu Figure 22 Gas Calibration 4 If the process is interrupted the following warning will be displayed and the adjustment will need to be restarted F...

Страница 32: ...tment Figure 26 Scaling Adjustment Apply Span Gas Figure 27 Scaling Adjustment Span Value 5 6 Response Test The response test measures the time taken for the detector to reach 90 of the target gas concentration The response test may trigger alarms and setpoints and operational procedures should be in place prior to undertaking a response test The following procedure minimises the delays and errors...

Страница 33: ... Test Gas AS 4641 2007 Approximate T90 value T90 Time GG2 Detector EC CO 100ppm 50ppm CO balance with Synthetic Air 45ppm 60s GG2 Detector EC CO 50ppm 25ppm CO balance with Synthetic Air 22 5ppm 60s GG2 Detector EC O2 25 100 nitrogen 2 09 60s GG2 Detector EC CO2 5 2 5 CO2 mixed with Synthetic Air or 100 Nitrogen 2 25 60s GG2 Detector EC CO2 2 1 CO2 mixed with Synthetic Air or 100 Nitrogen 0 9 60s ...

Страница 34: ...ng the steps to be performed to apply the test gas The 30 second timer is to allow for adequate filling of the Calibration Cup with the target gas The steps can be expanded as follows a STEP1 turn on gas get the target gas flowing into the Calibration Cup at the correct rate refer to Section 5 2 1 b STEP2 cover cal cup cover the cal cup to create a seal c STEP3 purge cal cup allow the target gas t...

Страница 35: ... the Calibration Cup is detected and the screen will advance automatically Figure 31 Response Test Apply Cup NOTE As the gas concentration increases setpoint flags may become set triggering a status message 3 The timer screen will be shown and the gas concentration measurement will start to increase Once 90 of the target value has been reached the screen will advance Figure 32 Response Test Timer ...

Страница 36: ...er Modbus and iMAC have the units of permyriad of full scale and may require conversion Refer to Section 6 4 1 The telemetry test provides several test modes outlined in Table 8 Table 8 Telemetry Test Target Values Test name Transmitted Gas Value permyriad See section 6 4 1 for info 4 20mA output value UNFORCED Actual detector gas value OR fault warmup value 4mA 20mA for normal operation 3 21 mA f...

Страница 37: ...n whilst within the designed measurement range The linearity test function may assist in meeting regulatory and operational requirements for maintenance of the GG2 system Linearity test results are available in the Modbus table refer to Section 7 2 1 5 CAUTION The linearity test may trigger alarms and setpoint flags The linearity test will NOT adjust the detector and is only used to verify the per...

Страница 38: ...180 seconds which is the recommended duration for convergence of the measurement Once the measurement has stabilised press the centre segment of the keypad to proceed Figure 37 Linearity Test Waiting for Stabilisation 4 The next screen will show the measured value which was captured from the detector and allow manual input of the gas concentration which was applied to the detector actual concentra...

Страница 39: ...ns Save Checkpoints will trigger advancement to the testing complete screen Continue Testing will allow capture of another checkpoint Abandon All will discard all saved checkpoints and return to the menu Figure 40 Linearity Test Confirmation 7 After choosing SAVE CHECKPOINTS OR after six checkpoints have been captured the TESTING COMPLETE screen will be displayed refer to Figure 41 Figure 41 Linea...

Страница 40: ...g 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 Zero Error The sensor zero balance is required to be within a pre set level and if the sensor is dam...

Страница 41: ...digital interface 6 1 Human Machine Interface The GG2 Display is controlled via the HMI The system is menu driven and navigated via the magnetic keypad outlined in Figure 2 Refer to Section 6 1 1 for an overview of the magnetic keypad operation The HOME screen of the GG2 Display will appear similar to that of Figure 42 The interface has a number of features identified in this image numbered circle...

Страница 42: ... while the lighter keys represent invalid keypad events refer to Figure 44 Figure 43 Keypad Overview Figure 44 Keypad Guide 6 1 1 1 Using the Magnetic Wand For best results during operation of the GG2 Display the display should be at eye level and the following points should be observed To activate a button switch o Move the magnetic wand to the desired segment of the keypad whilst keeping the wan...

Страница 43: ... by pressing any of the five segments of the magnetic keypad Once in the menu the current menu level will be shown Item 2 of Figure 42 along with the title of the current menu Item 1 of Figure 42 The selected menu option is identified by the black horizontal line running across the display and the black box bounding the text refer Figure 46 Actioning up or down on the keypad will move the selectio...

Страница 44: ...sation o LED Indication Test Isolate Detector Status System Info o Pg1 Configuration data o Pg2 Modbus or iMAC configuration data o Pg3 Display data o Pg4 detector data o Pg5 Last Min Peak values Configuration Requires authorisation o 4 20 mA Setup 4 20 mA Settings 4 mA Calibration 20 mA Calibration o Setpoints o Protocol Select o Protocol Config Behaviour is dependent on selected protocol With Mo...

Страница 45: ...es Fields that will accept negative values will contain a positive or a negative sign To set the desired value action right to select the character digit or sign you wish to change and press the up or down key s to increase or decrease the value The values will wrap around To select a different character press the left or right key Moving to the right will result in wrap around on the digit select...

Страница 46: ...it mode Figure 50 Save Screen Figure 51 Discarding Changes Screen Several screens within the menu structure require the operator to enter a single value and appear similar to that of Figure 52 below A value editor can be identified when a displayed number has a single highlighted character digit or sign These screens will function similarly to that described above with the exception that moving le...

Страница 47: ...r up slot assigned to them based on the serial number there are 50 slots of 100ms each This feature reduces the power up impact on a power supply with multiple devices connected After this the display will then attempt to establish communications with an attached GG2 Detector right of Figure 53 Figure 53 Title Screen left Establishing GG2 Detector Communications right GG2 Detector initialisation O...

Страница 48: ...ccessible In cases where the warmup period is equal to or less than the initialisation period 60s the home screen in warmup mode will not be seen as the warm up time may have already elapsed The warmup timer may take a few seconds to appear Figure 55 The Home Screen when in warmup Sleep Mode When the display is in sleep mode as shown in Figure 56 power is not supplied to the detector port Sleep mo...

Страница 49: ...ll ring should be in line with the detector housing 3 Take the device out of sleep mode by pressing any of the magnetic segments 4 The display will attempt to communicate with the new detector refer to Figure 53 NOTE The Establishing Detector Comms screen may only appear for a brief period 5 At this stage the display will either a Show the detector warmup screen please see 6 2 2 or b Show the diff...

Страница 50: ...is displayed when the detector type is changed This is to prevent accidental detector type changes A gas sensor type change results in the loss of all gas specific information from the display including Setpoints Healthy region setting Hysteresis setting Last response test target In addition the data listed under Section 0 is removed After acknowledging this screen by pressing the centre magnetic ...

Страница 51: ...ps Linearity test results There is no visual indication of this process 6 3 1 4 Detector Image Update Each gas detector contains a detector image that describes the functionality of the display In the case that the image on the detector is different to the one loaded into the display the new image will be downloaded 1 Flash erase The previous image is erased from the display Figure 59 Erasing the ...

Страница 52: ...pressing any button 2 Navigate down to ISOLATE DETECTOR Figure 61 Isolate Detector 3 Press right to access the ISOLATE DETECTOR screen Figure 62 Isolate Detector Confirmation 4 Press enter to confirm The text DETECTOR ISOLATED will display Once this message is on the display the detector is safe to remove The detector port is unpowered Figure 63 Detector Isolated 5 Whilst preventing the detector f...

Страница 53: ... v v These permyriad values therefore correspond to different gas concentrations on different detectors Some example values are calculated in the following table Table 9 Example of Permyriad to Gas Concentration Conversion Gas Range and Units Permyriad 0 5 v v 0 100 v v 0 10 ppm 100 0 05 v v 1 v v 0 1 ppm 0 0 v v 0 v v 0 ppm 5000 2 5 v v 50 v v 5 ppm 10000 5 v v 100 v v 10 ppm 10100 5 05 v v 101 v...

Страница 54: ... NOTE LOW power mode should only be connected to compatible logic devices over short cables iMAC 6 4 4 1 Configuration After selecting the iMAC protocol it may be configured Protocol configuration must be done via the PROTOCOL CONFIG screen in the configuration menu Within this menu there are two screens ADDRESSES and GENERAL For general guidance on editing options please refer to Section 6 1 2 2 ...

Страница 55: ...e other communications iMAC and Modbus 6 4 5 1 Behaviour The 4 20mA output is being monitored by the GG2 Display to ensure that the desired output is being driven and that the full range of outputs should be able to be driven In cases of excessive loop impedance a device fault will occur The estimated 4 20mA loop impedance can be seen on the SYSTEM INFO screens Section 6 6 2 6 4 5 2 Connection The...

Страница 56: ...librated current measurement device and ensure that the 4 20mA output is enabled see 6 4 5 3 If the device is working normally the measurement should be between approximately 2 and 22 mA 2 Access the 4MA CALIBRATION or 20MA CALIBRATION screen refer to Section 6 1 2 The notice below will be displayed for a few seconds Figure 64 Calibration Notice left 4mA Calibration right 3 The calibration measure...

Страница 57: ...ection will be explained using examples Figure 65 Example Setpoint Configuration The example in Figure 65 can be summarised as The gas reading is healthy when greater than SP1 0 and less than SP1 1 25 Setpoint 3 is 2 5 Looking at the example we explain how the setpoint flags are set cleared Setpoint flags are set when the gas reading moves away from the healthy region positive or negative gradient...

Страница 58: ...etting can help to reduce the number of events which may occur when the gas reading fluctuates about a setpoint The hysteresis setting is particularly important in rapid response systems such as iMAC where exception scans priority data transmissions are triggered by high criticality events Hysteresis solves this is by padding the setpoint value when clearing the setpoint flag The example in Figure...

Страница 59: ...as shown in Figure 69 This can be summarised as Reaching the setpoint value when moving away from the healthy region will instantly set the respective setpoint flag Crossing the setpoint value when moving toward the healthy region will not trigger a change Crossing the setpoints hysteresis value dotted lines when moving toward the healthy region will clear the respective setpoint flag Figure 69 Hy...

Страница 60: ...ovide a variety of data about the system The data contained on each of the screens is described in Table 15 Each of the screens is a snapshot of the information when the screen is first entered Press up down on the magnetic keypad to navigate through the screens Table 15 System Info Data Fields Screen number Field name Field description Note 0 POWER SUPPLY Power supply voltage V 4 20 MA STATE 4 20...

Страница 61: ...rsion of the application running on the display DATE Current detector date TIME Current detector time Logs The GG2 keeps logs to record significant events There are screens for detector logs and display logs which may be used to view the recorded log entries 6 6 3 1 Detector Logs The detector logs can be accessed from the DETECTOR LOGS screen Refer to Section 6 1 2 for details on navigating the me...

Страница 62: ...spectively 6 7 Display Maintenance Peak Values Reset Resetting of the recorded Last Peak Values LPVs can be done from the RESET LAST PEAK VALUES screen Refer to Section 6 1 2 for details on navigating the menu On this screen the current LPVs are displayed To reset the LPVs press the centre segment of the magnetic keypad The saving changes screen will then be shown Figure 74 Reset Last Peak Values ...

Страница 63: ...atalytic detector attached Methane gas concentrations above the specified range may cause incorrect operation due to limitations of the catalytic bead The catalytic sensor will latch the reading to 5 25 v v when the gas concentration exceeds 5 25 v v and will require the user to externally verify the ambient gas concentration is within the measurement range prior to resetting the latch WARNING Bef...

Страница 64: ... confirmation Once the latch is successfully reset the gas reading should again reflect the actual gas value and the status flags shall in turn become unset LED Indicator Test The LED indicator test can be used to verify the function of the three LED indicators on the GG2 Display The test sequence should be as follows 1 One LED flashes several times this repeats for the other LEDs after which the ...

Страница 65: ... noted in the Format column 7 2 1 1 Safety Registers Register Description R W Detail Format 1 Detector gas reading permyriad unaffected by telemetry test R Permyriad of full scale see Gas Reading Units6 4 1 Signed Int 2 Bit inverted Detector gas reading permyriad unaffected by telemetry test R Permyriad of full scale See Gas Reading Units6 4 1 Signed Int bit inversion 3 Heartbeat R Increments on e...

Страница 66: ...set the value should clear to 0 bit 9 bits 0 7 FACTORY USE ONLY 9 bit 8 Atmospheric pressure fluctuation too great to obtain stable reading R 1 true bit 9 bit 9 Sensor reading has gone above 100 R 1 above range bit 9 bit 10 Sensor reading has gone below 10 Auto clears when reading goes above 0 R 1 under range bit 9 bit 11 FACTORY USE ONLY 9 bit 12 Unexpected calibration values R 1 calibration valu...

Страница 67: ...ad see 6 4 1 R W Must be SP2 Signed Int 29 Normal operation range R W 0 never activate setpoint 1 healthy SP1 2 SP1 healthy SP2 3 SP2 healthy SP3 4 healthy SP3 Unsigned Int 30 RTC date and time R Time in seconds since 01 01 2000 00 00 All zeros if time lost or faulty 32 bit Unsigned Int 31 RTC date and time R 7 2 1 5 Maintenance Register Description R W Detail Format 32 Last Min Value permyriad Ma...

Страница 68: ...e 01 01 2000 00 00 32 bit Unsigned Int 53 Detector Last linearity test Date 54 Last t90 result in 0 1s e g 101 10 1s Unsigned Int 55 Detector last t90 test date in Ampcontrol date format Time in seconds since 01 01 2000 00 00 32 bit Unsigned Int 56 Detector last t90 test date in Ampcontrol date format 57 Time in seconds cal cup left on last increments while cal cup on doesn t roll over past FFFF U...

Страница 69: ...revious rule 7 3 iMAC On GG2 Detector Removal If iMAC is activated and the detector is removed all bit fields will go to all zeros and all numerical values will go to 0xFFFF The setpoint flag bits and data invalid bit will go high 1 and are exceptions to the previous rule 7 3 1 1 GG2 Display Module Status flag Registers Bit Description Bit value R W Channel Exception Trigger 0 Analogue input moved...

Страница 70: ...rd R W 0 0 iMAC Address 0 255 iMAC address for Status Flags R W 0 1 Exception Trigger 0 20 000 step change between samples to trigger exception Default is 1000 5 R W 0 2 Address for catalytic reset command Reset command is written to this address format is Bits 0 7 STATUS Address to reset Bits 8 15 set to AA to reset catalytic latch R W 0 3 Address for DI4 controlling bypass mode Bits 0 7 Address ...

Страница 71: ...ng R 6 2 Detector Serial number high word R 6 3 Detector Software Version 16 bit version number of some description R 7 0 Display Serial number low word Display CSM serial number 32 bits for overhaul tracking R 7 1 Display Serial number high word R 7 2 Display Base Software Version 16 bit version number of some description R 7 3 Display Application Software Version 16 bit version number of some de...

Страница 72: ... Power Supply Input Programming Parameters available via rollcall only Block Parameter Label Description of 16 bit word R W 2 0 iMAC Address 0 255 iMAC address for Power Supply Input R W 2 1 Power Supply Set Point A 0 2400 0 24V R W 2 2 Power Supply Set Point B 0 2400 0 24V R W 2 3 iMAC addresses for 32 bit sys clock Bits 0 7 Address of byte 1 of RTC assume byte 2 is adjacent 0 use own RTC Bit 8 1...

Страница 73: ...unit and other equipment This level of inspection may also include cleaning display windows that have 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 f...

Страница 74: ...credited repair facility Table 17 Corrective Maintenance Checks Fault Checks GG2 Detector will not respond to digital commands a Check that voltage and polarity applied to the 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...

Страница 75: ...0 16 5VDC Max Power Consumption 12mA Mechanical and Environment Dimensions H x W x D 168mm x 90mm x 94mm Weight 3kg IP Rating IP66 Housing Material Cast Stainless Steel Operating Temperature 20 C to 40 C Humidity Range 15 to 90 r h non condensing Pressure Range 20kPa Communications iMAC L1 Hardware interface 2 wire 18VDC I S Line Speed 300 1000 baud Bit protocol iMAC proprietary L1 Isolation 5 3kV...

Страница 76: ... DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART 10 EQUIPMENT LIST NOTE Customised gas panels and systems are also available as well as sample draw panels These can be designed specifically to your gas 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 ...

Страница 77: ...RODUCED IN PART 11 APPROVALS 11 1 IECEx ITA 07 0017X Issue No 2 iMAC System The official controlled version of the certificate may be obtained online from the IECEx website 11 2 IECEx TRA 18 0003X Issue No 0 GG2 Display Module The official controlled version of the certificate may be obtained online from the IECEx website The attached certificate below was current when this document was published ...

Страница 78: ...915 542 GG2 DISPLAY USER MANUAL GG2B023 Version 3 JUNE 19 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 78 of 82 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

Страница 79: ...915 542 GG2 DISPLAY USER MANUAL GG2B023 Version 3 JUNE 19 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 79 of 82 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

Страница 80: ...915 542 GG2 DISPLAY USER MANUAL GG2B023 Version 3 JUNE 19 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 80 of 82 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

Страница 81: ...915 542 GG2 DISPLAY USER MANUAL GG2B023 Version 3 JUNE 19 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 81 of 82 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

Страница 82: ...915 542 GG2 DISPLAY USER MANUAL GG2B023 Version 3 JUNE 19 Uncontrolled Copy Refer to Ampcontrol Website for Latest Version Page 82 of 82 APPROVED FOR EXTERNAL DISTRIBUTION PROPERTY OF AMPCONTROL PTY LTD NOT TO BE REPRODUCED IN PART ...

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