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GASSONIC OBSERVER-i

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See the ERROR OUTPUT Section for explanation of errors. Bit 13 is special for Modbus and HART.
When the Gassonic Observer-i is in acoustic test, this bit is set to “1” if the acoustic sound level is
above the desired level, and to “0” – if it is below the desired level. This allows the system to quickly
know if there is an acoustic test problem.

Bit 15 is set to “1” if any of the lower level faults are present. The system can now drill down and find
the root cause. Normally, this is not required at the system level, but only at a test station.

6.7.4. Fault Status/Error 2 (03H)

A read-only accessible register contains the bit map for any internal error that is present. The following
table shows the faults that are represented by each bit in the register.

Bit Position

15

14

13

12

11

10

9

8

Fault

Description

Word

3

Event

RAM

HART

RAM

System

RAM

Critical

RAM

Event

Flash

HART

Flash

System

Flash

Hex Value

0x8000

0x4000

0x2000

0x1000

0x0800

0x0400

0x0200

0x0100

Decimal Value

32768

16384 8192 4096 2048 1024 512 256

Display Fault

Code

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Bit Position

7

6

5

4

3

2

1

0

Fault

Description

Critical

Flash

CPU

RAM

CPU

Flash

-5V

Ref.

+5V

Ref.

-12V

Ref.

+12V

Ref.

Current

Ref.

Hex Value

0x0080

0x0040

0x0020

0x0010

0x0008

0x0004

0x0002

0x0001

Decimal Value

128 64 32 16 8 4 2 1

Display Fault

Code

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Table 15: Fault Status/Error 2

6.7.5. Model Type (04H)

A read returns the Decimal Value indicating the model number. The Gassonic Observer-i model
number is “6000”. Notice: If a newer Observer-i is designed to replace the Gassonic Observer-i the
model number will be different.

6.7.6. Software Revision Major (05H)

A read-only accessible register contains the major (user) alphanumeric revision value of the Gassonic
Observer-i embedded software expressed in 2 ASCII characters (REV “A” appears as a blank and the
letter A).

6.7.7. dB Level (06H)

A read-only accessible register contains the value of the measured SPL expressed in decibels.

6.7.8. Peak

Sound

(07H)

A read-only accessible register contains the acoustic test peak sound level expressed in decibels.

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Содержание Observer-i

Страница 1: ...ent may be oses and to g by Gassoni uction Manu onic reserve fications and No sion R i or and technical e used and di the extent sp ic al es the right designs with MANO M l data disclos isseminated o pecifically au 03 to change out prior notic Observer MANObserve B 03 sed in this only for the uthorized in 14 published ce i er i 14 ...

Страница 2: ...GASSONIC OBSERVER i ii This page intentionally left blank ...

Страница 3: ...on Modes 17 4 3 2 SPL Alarm Trigger 17 4 3 3 ANN Sensitivity Level 17 4 3 4 Alarm Relay Energized De Energized 18 4 3 5 Alarm Relay Latch Non Latched 18 4 3 6 Modbus 18 4 3 7 HART Enable 18 4 3 8 HazardWatch 18 4 3 9 Acoustic Self Test 19 4 3 10 Inputs 19 4 3 11 Output Methods 19 4 3 12 Relay Ratings 20 4 3 13 Alarm Relay Output 20 4 3 14 4 20 mA Output 20 4 4 Switching Modes 22 4 4 1 Error Fault ...

Страница 4: ... Read Status Protocol Query Response 52 6 3 1 Modbus Read Query Message 52 6 3 2 Modbus Read Response Message 53 6 4 Modbus Write Command Protocol Query Response 53 6 4 1 Modbus Write Query Message 53 6 4 2 Modbus Write Response Message 54 6 4 3 Function Codes Supported 54 6 5 Exception Responses and Exception Codes 54 6 5 1 Exception Responses 55 6 5 2 Exception Code Field 55 6 6 Command Register...

Страница 5: ... 28H 69 6 7 40 Comm 1 Framing Errors 29H 70 6 7 41 Comm 1 Total UART Receive Errors 2AH 70 6 7 42 Factory Default 2BH 70 6 7 43 Comm 1 Clear error 2CH 70 6 7 44 Clear Stats 1 2D 70 6 7 45 HART Current 2E 70 6 7 46 HART Present 2F 70 6 8 Event Logging 30H 5FH 71 6 8 1 Faults 71 6 8 2 Alarm 71 6 8 3 Calibration 71 6 8 4 Maintenance 71 6 8 5 User Data 60H 6F 78 6 8 6 Comm 2 Bus Activity Rate 71H 78 6...

Страница 6: ...Equipment 85 8 3 4 Spare Parts 85 8 3 5 Microphone Replacement 86 8 3 6 Sound Source Assembly Replacement 87 8 4 Sound Source Calibration 87 8 4 1 Considerations and Preparations 87 8 4 2 Sound source Calibration 87 Abbreviations ANN Artificial Neural Network Bps bits per second HART Highway Addressable Remote Transducer communication protocol SPL Sound Pressure Level measured in decibels UART Uni...

Страница 7: ...z only detect g Senssonic s strial user and tions This Observer i to e ands for intel ration ultraso zes the adva gas leaks wh self test syste d communica user manua ensure its opt lligent G onic gas leak nced acousti ile suppressi em for failsafe ation interface l describes imal performa GASSONIC k detector U ic and paten ng unwanted e operation G es that provide the installati ance C OBSERV UGLD...

Страница 8: ...kground noise sources unrelated to gas leaks To ensure this very important feature the Gassonic Observer i is the first ultrasonic gas leak detector to use multi spectral Artificial Neural Network ANN algorithms in the detector s advanced acoustic sound processing design to distinguish real gas leaks from false alarms The ANN is a mathematical algorithm and is used to search for familiarity in a l...

Страница 9: ...onic Observer i analyzes acoustic noise from as low as 12 kHz where other ultrasonic gas leak detectors have to filter out noise below 20 kHz to prevent interference from compressors or other man made acoustic noise unrelated to gas leaks With the ANN multi spectral technology the frequency band works down to 12 kHz allowing more sound energy from potential gas leaks to be picked up and analyzed w...

Страница 10: ... without a solid physical obstruction between the detector and the leak With an increase in user adjustable SPL trigger levels the coverage area is equivalently decreased In Enhanced Mode the ANN algorithm eliminates the need for SPL trigger levels while at the same time filters out spurious alarms due to background nuisances thereby increasing the leak detection coverage in high background noise ...

Страница 11: ...s Analog Output 4 20 mA current loop interface Sink or Source factory setting Source Alarm relay to indicate potential gas leak alarm Error Relay to indicate detector fault HART 6 0 interface operates over 4 20 mA current loop interface Modbus serial interface operates on two separate wires half duplex RS 485 ...

Страница 12: ...e top chamber is opened The two mounting bolts are on the top chamber of the detector so that the cables will enter on the fixed part of the detector The bottom part is attached to the top by means of six Allen screws with lock washers Unscrewing these screws will expose the connector PCB in the top chamber These screws will be fixed by retaining washers to the bottom chamber The bottom chamber of...

Страница 13: ...afety device per clause 1 5 of Annex II of the ATEX Directive 94 9 EC is not covered by the ATEX certificate 3 2 1 Specific conditions of use The Class A2 70 M6x1x20 screws connecting the bulkhead flange joints must be tightened to 9 Nm using a torque wrench Consult the manufacturer if dimensional information on the flameproof joints is necessary Do not open when an explosive atmosphere is present...

Страница 14: ...ry and is supplied with two M8 mounting U bolts which can fit around a pole with a maximum dimension of 63 mm It is possible to mount the detector directly onto non vibrating structural beams or cable trays The microphone should face downwards and if tilting of the detector is necessary the angle of incline should not exceed 45 When mounting the detector within half a meter of a solid structure su...

Страница 15: ...5 Wiring Diagram 3 5 Protective Earth Grounding Figure 6 External Earth Terminal The protective earth ground terminal requires the use of an M5 ring lug and star washer The wire gauge should be less than or equal to the gauge of the power supply wires ...

Страница 16: ...GASSONIC OBSERVER i 16 Figure 7 Internal Earth Terminal ...

Страница 17: ...recorded immediately prior to its start Both alarm and error relays are configured as single pole double throw 4 3 Setup The setup can be done in three different ways The display magnet is a user input that only requires a magnet as an external tool It is best used in simple systems HART is a method that requires a HART modem and supporting software It is best used where there is existing wiring a...

Страница 18: ...Energized De Energized The alarm relay can be normally energized or normally de energized In either energized state the single pole double throw allows for the opening or closing of a contact for an alarm The normally energized state is a failsafe method If an alarm or power outage occurs an alarm condition will be indicated The factory default setting is normally de energized 4 3 5 Alarm Relay La...

Страница 19: ...bserver i h ring Ground ill remain unt e device will g he Alarm tes on the SB100 until the SB1 isplay For E after delay tim hods major output 9 is done ev eep at consta tor analyzes t o a factory ref t of the prede after the first again 30 sec ate an acous n The user c hermore the g SPL readin s repaired bserver i unit st with the bration Unit back to the c Observer i mmediately be 0 mA analog o t...

Страница 20: ...round noise peaks This delay time is particularly important in Classic Mode when ANN is not used for gas detection The delay time can be set between 0 and 240 seconds The factory default setting for delay is 2 seconds in Enhanced Mode and 10 seconds in Classic Mode The delay can alternatively be configured via the Fire and Gas Panel Modbus or HART When a gas leak occurs in the detector s coverage ...

Страница 21: ... unit is constantly calculating the probability of the input being a real gas leak In Enhanced Mode the user has three Analog Outputs to choose from These outputs are Discrete SPL EAO1 shown in display 4 12 mA represents 40 120 dB 16 mA for Warning and 20 mA for Alarm Warning is before the delay time runs out n 40 8 80 4 x n Sound Level in dB x Output value in mA Discrete EAO2 4 mA for Normal 16 m...

Страница 22: ...led HART Enabled Standard HART Enabled Special Normal Analog Output 4 mA 4 mA 4 mA Analog Output Warning Alarm 16 20 mA 16 20 mA 16 20 mA Menu Activated 3 mA 3 5 mA 3 mA Acoustic Error 1 mA 3 5 mA 1 25 mA Low Supply Voltage 0 mA 3 5 mA 1 5 mA SB100 Test Mode 1 5 mA 3 5 mA 1 5 mA Enhanced Mode Full SPL mode Display EAO3 Function HART Disabled HART Enabled Standard HART Enabled Special Normal Analog...

Страница 23: ...emote s an Inhibit outp play magnets ector sends ou amples 23 present dB T switch put when Set s HART or M ut a current lo 3 The relay retu tup Calibrate Modbus oop Sin G urns to norma or Acoustic nk The detec GASSONIC al after the rel Test is activa ctor receives C OBSERV ay reset is ac ated This ac a current loop VER i ctivated ctivation p ...

Страница 24: ...24 4 G GASSONIC C OBSERV VER i ...

Страница 25: ...mA De energized Check switch wiring Yes Magnetic sensors stuck EMAG 0 mA 0 mA De energized Remove magnet Yes Internal voltage error EINV 0 mA 0 mA De energized Return to factory No Critical memory error ECRT 0 mA 0 mA De energized Return to factory No User memory error EUSR 0 mA 0 mA De energized Recycle power and restore user defaults No HART memory error EHRT 0 mA 0 mA De energized Recycle power...

Страница 26: ...actory or authorized service center for service Internal Voltage Error The possible errors are an internal voltage is not at the proper value or a circuit is not functioning properly Action An internal error has occurred The unit must be returned to the factory for service Critical Memory Error This is a main memory error and the Gassonic Observer i may not function correctly Action The unit must ...

Страница 27: ...ctual current does not go below 3 5 mA Modbus reports the analog output as if HART was not there This allows users to use a consistent Modbus program When the alarm relay is latched the current and display follows the present dB The relay will return to normal after the relay reset is activated via Modbus HART or remote switch The unit will have an Inhibit output when Setup Calibrate or Acoustic T...

Страница 28: ...nter Enter Menu Enter Menu B19 Menu F8N1 Enter A001 UP Dwn UP Dwn Menu Enter Hart Enabled Menu Dwn Dwn Dwn Enter Menu Menu B 96 F8E1 A002 NO YES Enter Enter Enter Any Changes Yes No Do Not Save Modbus 1 3 seconds 3 seconds UP UP UP UP Dwn Until finished SAVE Done 5 Hold for fast Hold for fast Hold for fast Hold for fast 60 second Time out Menu Menu Restore Restore UP Dwn Menu Menu Menu Done If no ...

Страница 29: ...cted The Gassonic Observer i will default to Discrete SPL EAO1 when Enhanced Mode is selected If the user wants to change the Enhanced Analog output mode after ENON is selected press the MENU button and the display will show EAO1 Use the UP and DOWN button to select the available current modes To check the Detection Mode or Analog Output Mode press the MENU button when the Gassonic Observer i is i...

Страница 30: ...etected by the microphone emitted from the sound source If this value is flashing the unit is failing the acoustic test There could be a number of causes for this error see Section 8 3 for more information The DOWN switch will stop the acoustic test and display ATOF Activating the ENTER switch at any time during this operation will display DONE and take the unit back to Normal Operation A maintena...

Страница 31: ...the DOWN switch will decrease the Trigger Level in 5 dB increments Activating the ENTER switch without changes made switches the unit back to Normal Operation Activating the ENTER switch with changes made will flash SAVE on the display Confirm the save action by activating the ENTER switch once more Activating the MENU switch while SAVE is flashing will discard the save and switch the unit back to...

Страница 32: ...witch without changes made switches the unit back to Normal Operation Activating the ENTER switch with changes made will flash SAVE on the display Confirm the save action by activating the ENTER switch once more Activating the MENU switch while SAVE is flashing will discard the save and switch the unit back to Normal Operation If ENTER was activated the unit will display DONE to confirm that the c...

Страница 33: ...vating the ENTER switch with changes made will flash SAVE on the display Confirm the save action by activating the ENTER switch once more Activating the MENU switch while SAVE is flashing will discard the save and switch the unit back to Normal Operation If ENTER was activated the unit will display DONE to confirm that the changes have been saved and return to Normal Operation The operator can cha...

Страница 34: ...back to Normal Operation Activating the ENTER switch with changes made will flash SAVE on the display Confirm the save action by activating the ENTER switch once more Activating the MENU switch while SAVE is flashing will discard the save and switch the unit back to Normal Operation If ENTER was activated the unit will display DONE to confirm that the changes have been saved and return to Normal O...

Страница 35: ...l flash SAVE on the display Confirm the save action by activating the ENTER switch once more Activating the MENU switch while SAVE is flashing will discard the save and switch the unit back to Normal Operation If ENTER was activated the unit will display DONE to confirm that the changes have been saved and return to Normal Operation The operator can change the latching settings and if desired move...

Страница 36: ...es were made in previous menu items HazardWatch Mode ON OFF the unit will flash SAVE on the display Confirm the save by activating the ENTER switch or discard the save by activating the MENU switch once more If no switch is activated for 60 seconds the detector will return to normal operation without saving the changed settings The Gassonic Observer i factory default settings are as follows Featur...

Страница 37: ...GASSONIC OBSERVER i 37 ...

Страница 38: ...more Activating the MENU switch while SAVE is flashing will discard the SAVE and switch the unit back to normal operation If ENTER is activated the unit will display DONE to confirm that the changes have been saved and return to normal operation The operator can change the HazardWatch settings and if desired move to the next item HART ON OFF in the menu structure by activating the MENU switch stra...

Страница 39: ...ng t Activating t 9 perator the When HART dbus HART ART he magnet sti will switch the N Activating t Confirm the S le SAVE is f activated the rmal operation Minimum An he change T in the menu peration witho two option of the MENU tw the MENU f G ability to fie communica T When H ick The facto e factory Defa the ENTER s SAVE action flashing will d e unit will dis n The operat nalog Output The chang...

Страница 40: ...ay Confirm the SAVE action by activating the ENTER switch once more Activating the MENU switch while SAVE is flashing will discard the SAVE and switch the unit back to normal operation If ENTER is activated the unit will display DONE to confirm that the changes have been saved and return to normal operation The operator can change the HART setting and if desired move to the next item Baud Rate in ...

Страница 41: ...re Activating the MENU switch while SAVE is flashing will discard the SAVE and switch the unit back to normal operation If ENTER is activated the unit will display DONE to confirm that the changes have been saved and return to normal operation The operator can change the Baud rate and if desired move to the next item Format in the menu structure by activating the MENU switch straight after the cha...

Страница 42: ...e ENTER switch once more Activating the MENU switch while SAVE is flashing will discard the SAVE and switch the unit back to normal operation If ENTER is activated the unit will display DONE to confirm that the changes have been saved and return to normal operation The operator can change the format settings and if desired move to the next item Address in the menu structure by activating the MENU ...

Страница 43: ...tch while SAVE is flashing will discard the SAVE and switch the unit back to normal operation If ENTER is activated the unit will display DONE to confirm that the changes have been saved and return to Normal operation The operator can change the address settings time and if desired move to the next item Baud Rate in the menu structure by activating the MENU switch straight after the change The cha...

Страница 44: ...y default is ON Channel 2 will not appear Activating the MENU thirteen times will switch the unit to normal operation If HART is Disabled the baud rate for Channel 2 will appear NOTE If HART is enabled the following channel two items will not appear ...

Страница 45: ...ivating the MENU switch while SAVE is flashing will discard the SAVE and switch the unit back to normal operation If ENTER is activated the unit will display DONE to confirm that the changes have been saved and return to normal operation The operator can change the Baud rate and if desired move to the next item Format in the menu structure by activating the MENU switch straight after the change Th...

Страница 46: ...ch once more Activating the MENU switch while SAVE is flashing will discard the SAVE and switch the unit back to normal operation If ENTER is activated the unit will display DONE to confirm that the changes have been saved and return to normal operation The operator can change the format settings and if desired move to the next item Address in the menu structure by activating the MENU switch strai...

Страница 47: ...en saved and return to Normal operation More info for Modbus protocol is available in Section 6 If no switch is activated for 60 seconds the detector will return to normal operation without saving the changed settings Activating the MENU fifteen times will switch the unit to normal operation 4 5 18 Loop Test ON OFF LTON LTOF Activating the DOWN switch for 3 seconds will turn on LTON the Loop Test ...

Страница 48: ...c SB100 emits high power ultrasonic acoustic noise and when aimed at the UGLD the airborne noise will be picked up by the Gassonic Observer i at distances up to 18 meters away The Gassonic SB100 will be recognized by the Gassonic Observer i in Enhanced Mode and a T will be displayed on the Gassonic Observer i display The analog output will go to 1 5 mA 3 5 mA HART standard for 2 seconds then to 16...

Страница 49: ...t SPL of 99 dB for 8 seconds and then to 0 dB for 3 seconds Thereafter the SPL will return to 99 dB and the sequence will be repeated until a new SPL is selected or the test stopped To select a new SPL the DOWN button should be pressed There are four levels 99 dB 89 dB 79 dB and 64 dB The dB readout on the display of the Gassonic 1701 can now be compared with that of the Gassonic Observer i 5 4 Ca...

Страница 50: ...will be displayed and the unit will return to normal operation If the calibration sequence was completed successfully and adjustments were made ADJ will be displayed for 2 seconds and the unit will return to normal operation If the calibration sequence was completed successfully and adjustments were not necessary OK will be displayed for 2 seconds and the unit will return to normal operation A cal...

Страница 51: ...GASSONIC OBSERVER i 51 Figure 9 Calibration Routine ...

Страница 52: ...erface The selectable data formats are as follows Data Bits Parity Stop Bit Format 8 None 1 8 N 1 8 Even 1 8 E 1 8 Odd 1 8 O 1 8 None 2 8 N 2 Table 5 Data Format 6 3 Modbus Read Status Protocol Query Response 6 3 1 Modbus Read Query Message Byte Modbus Range Referenced to Gassonic Observer i 1st Slave Address 1 247 Gassonic Observer i ID Address X 0 or 1 Model Type 2nd Function Code 03 Read Holdin...

Страница 53: ...this time 6 4 Modbus Write Command Protocol Query Response 6 4 1 Modbus Write Query Message Byte Modbus Range Referenced to Gassonic Observer i 1st Slave Address 1 247 Decimal Gassonic Observer i ID Address 2nd Function Code 06 Preset Single Register 3rd Register Address Hi 00 Not used by Gassonic Observer i 4th Register Address Lo 00 FF Hex Gassonic Observer i Commands 5th Preset Data Hi 00 FF He...

Страница 54: ... 5 Exception Responses and Exception Codes In a normal exchange the master device sends a query to the Gassonic Observer i The Gassonic Observer i receives the query and returns a normal response to the master If a communication error occurs there are three possible responses from the Gassonic Observer i 1 If the Gassonic Observer i does not recognize the query due to communication error no respon...

Страница 55: ... by the Gassonic Observer i Code Name Description 01 Illegal Function The function code received in the query is not an allowable action for the Gassonic Observer i 02 Illegal Data Address The data address received in the query is not an allowable address for the Gassonic Observer i 03 Illegal Data Value A value contained in the query data field is not an allowable value for the Gassonic Observer ...

Страница 56: ...numeric R 0x0006 SPL Sound pressure level dB Numeric Value 45 110 dB R 0x0007 Peak Sound Peak sound level dB Numeric Value TBD R 0x0008 Temperature Unit temperature in 0 1 C Numeric Value 40 C 75 C expressed in 0 1 C R 0x0009 Display Chars Hi Display MSD and MID1 ASCII chars See description R 0x000A Display Chars Lo Display MID2 and LSD ASCII chars See description R 0x000B Serial No Hi Unit serial...

Страница 57: ...r of Modbus channel 1 function code errors Numeric Value 0 65535 R 0x0023 Ch1 Starting Address Errors Number of Modbus channel 1 starting address errors Numeric Value 0 65535 R 0x0024 Ch1 Register Errors Number of Modbus channel 1 register errors Numeric Value 0 65535 R 0x0025 Ch1 CRC Hi Errors Number of Modbus channel 1 Hi CRC errors Numeric Value 0 65535 R 0x0026 Ch1 CRC Lo Errors Number of Modb...

Страница 58: ...erved Numeric Value 0 R 0x0038 Reserved Reserved Numeric Value 0 R 0x0039 Reserved Reserved Numeric Value 0 R 0x003A Reserved Reserved Numeric Value 0 R 0x003B Reserved Reserved Numeric Value 0 R 0x003C Reserved Reserved Numeric Value 0 R 0x003D Reserved Reserved Numeric Value 0 R 0x003E Reserved Reserved Numeric Value 0 R Alarm Event Log 0x003F Run Time Hi Running Time Hi for Alarm Event log entr...

Страница 59: ...ic Value 0 65535 R 0x0051 Clock Time Hi Hi byte year Lo byte month Maintenance clock time Numeric Value 1 99 year 1 12 month R 0x0052 Clock Time Mid Hi byte Day Lo byte Hour Maintenance clock time Numeric Value 1 31 day 0 23 hour R 0x0053 Clock Time Low Hi byte Minute Lo byte second Maintenance clock time Numeric Value 0 59 minutes 0 59 seconds R 0x0054 Maint Code Gassonic Observer i maintenance c...

Страница 60: ...RC errors Numeric Value 0 65535 R 0x0076 Ch2 CRC Lo Errors Number of Modbus channel 2 Lo CRC errors Numeric Value 0 65535 R 0x0077 Ch2 Parity Errors Number of serial channel 2 parity errors Numeric Value 0 65535 R 0x0078 Ch2 Overrun Errors Number of serial channel 2 overrun errors Numeric Value 0 65535 R 0x0079 Ch2 Framing Errors Number of serial channel 2 framing errors Numeric Value 0 65535 R 0x...

Страница 61: ...ic test is taking place The request of the acoustic test can be from the magnet a timed acoustic test a HART request or a Modbus request Calibrate This bit is set anytime a calibration is taking place The request of the calibration test can be from the magnet a timed acoustic test a HART request or a Modbus request Fault This bit is set any time the Gassonic Observer i has a fault Setup Indicates ...

Страница 62: ... mode until it is safe 6 7 3 Primary Fault Status Error 1 02H A read returns the errors that are occurring which are indicated by bit position This status word is used as the primary status error word This is the only one that needs to be read to know if there are any errors Bit Position 15 14 13 12 11 10 9 8 Fault Description Error Lower level Not Used BELOW ATREF Not Used Event Memory Hart Memor...

Страница 63: ...0x0800 0x0400 0x0200 0x0100 Decimal Value 32768 16384 8192 4096 2048 1024 512 256 Display Fault Code N A N A N A N A N A N A N A N A Bit Position 7 6 5 4 3 2 1 0 Fault Description Critical Flash CPU RAM CPU Flash 5V Ref 5V Ref 12V Ref 12V Ref Current Ref Hex Value 0x0080 0x0040 0x0020 0x0010 0x0008 0x0004 0x0002 0x0001 Decimal Value 128 64 32 16 8 4 2 1 Display Fault Code N A N A N A N A N A N A N...

Страница 64: ...49 54 59 64 69 74 79 84 89 94 99 dB Table 16 Trigger Levels 6 7 13 Trigger Delay 0EH This is a read write register A read will return the present time delay The time delay has a range of 0 to 240 seconds A one represents 1 second EXCEPTION If an illegal data value is entered must be between 0 240 then the Exception Code 03 Illegal Data Value is returned 6 7 14 Comm 1 Address 0FH A read returns the...

Страница 65: ...o the requested data format After the data format has been changed to the addressed unit the Modbus communications may cease or start producing Comm errors because the data format has changed therefore the master will have to change its data format to the slave s new data format in order to restart or provide proper communications Data Parity Stop Format Low Data Byte Access 8 None 1 8 N 1 00 Read...

Страница 66: ...6K 06 Read Write 38 4K 05 Read Write 19 2K 04 Read Write 9600 03 Read Write 4800 02 Read Write 2400 01 Read Write Table 19 Comm 2 Baud Rate This function is indicated on the Low Data Byte the High Data Byte is not used EXCEPTION If an illegal data value is entered which is not listed above then the Exception Code 03 Illegal Data Value is returned NOTE The default Baud Rate is 19200 6 7 19 Comm 2 D...

Страница 67: ...librate OK 0x0008 Calibrate error 0x0010 Table 21 Calibrate Sub Mode 6 7 23 Acoustic Test 18H This is a write only register Writing a 1 to this register will activate an acoustic test This is a one cycle test During the test the display will show COM The current will go to 3 0 mA EXCEPTIONS If an illegal data value is entered must be between 0 1 then the Exception Code 03 Illegal Data Value is ret...

Страница 68: ...nergized a zero is de energized EXCEPTIONS If an illegal data value is entered must be between 0 1 then the Exception Code 03 Illegal Data Value is returned If the Gassonic Observer i hears a gas leak greater than the trigger when the command is received a Code 06 device busy exception will be returned 6 7 28 HART Enable 1DH The HART enable register read write This command enables or disables HART...

Страница 69: ...ceive Errors 24H A read indicates the total Modbus Comm 1 Only Receive Errors that occurred in the slave device These are address function etc type of errors The maximum count is 65535 and then the counter rolls over to zero and begins counting again 6 7 36 RXD CRC Errors 25h A read indicates the number of RXD CRC Errors that occurred in the slave device The maximum count is 65535 and then the cou...

Страница 70: ... settings are different than the factory default 6 7 43 Comm 1 Clear error 2CH Writing 1 to this register clears all UART receive communication framing overrun parity error counters on serial channel 1 6 7 44 Clear Stats 1 2D Writing 1 to this register clears all Modbus function starting register address number of registers CRC error counters on serial channel 1 6 7 45 HART Current 2E Normally in ...

Страница 71: ...nter is incremented for each calibration attempt The identifying number stored depends on the ending condition Condition Identifying number Calibrate OK 4 Calibrate Adjust 5 Calibrate Error 6 Table 25 Calibration Counter 6 8 4 Maintenance There are a total of 10 maintenance events stored The number stored with the time stamp will indicate the source of the maintenance event Piezo When a Piezo cali...

Страница 72: ...e time has been reset this flag will be 0 otherwise the flag will 1 Event Index 0x36 This is used to indicate which of the stored events the user would like to read There are 5 event logs Warning events Alarm events Fault events Calibration events and Maintenance events Each of these event logs consist of 10 of their most recent occurrences The user is able to read the logs of each of these by set...

Страница 73: ...is time is in seconds since January 1 2000 Fault Running Time in Seconds Low Word 0x48 This register reads the low word of the running time in seconds when the fault event occurred This time is in seconds since January 1 2000 Fault Clock Time Year Month 0x49 Fault Structure Hi These registers are described in Table 27 as item number 1 Fault Clock Time Day Hour 0x4A Fault Structure Mid These regist...

Страница 74: ...ance Event Counter 0x56 This reads the total number of gas check events that have been stored in the unit Calibration Running Time in Seconds Hi Word 0x57 This register reads the high word of the running time in seconds when the calibration event occurred This time is in seconds since January 1 2000 Calibration Running Time in Seconds Low Word 0x58 This register reads the low word of the running t...

Страница 75: ...truct 33 Real Time Clock Day Hour Read Set day and hour of RTC 2 Numeric Values 1 31 day 0 23 hour 34 Real Time Clock Minute Second Read Set minutes and seconds of RTC 2 Numeric Values 0 59 minute 0 59 second Timer Struct 35 PowerCycleFlag Read Power Cycle Flag Numeric Value 1 Time Not Reset 0 Time Was Reset Flag 36 Event Index Event index of Logged Event Numeric value 0 9 Index 37 Warn Seconds Ti...

Страница 76: ... month for alarm event log entries Numeric value 0 65535 Alarm 42 Structure time Mid Hi byte day low byte hour alarm event log entries Numeric value 0 65535 Alarm 43 Structure time Low Hi byte min low byte sec for alarm event log entries Numeric value 0 65535 Alarm 44 Alarm Detection Type and Peak dB Alarm Detection Type and Peak dB Numeric value 0 65535 Alarm 45 Reserved Reserved Numeric value 0 ...

Страница 77: ...1 Structure time Hi Hi byte year low byte month for event log entries Numeric value 0 65535 Maintenance 52 Structure time Mid Hi byte day low byte hour event log entries Numeric value 0 65535 Maintenance 53 Structure time Low Hi byte min low byte sec for event log entries Numeric value 0 65535 Maintenance 54 Maintenance code Cal check Numeric value 0 Maintenance 55 Reserved Reserved Numeric value ...

Страница 78: ...tes the number of Comm 2 Function Code Errors that occurred in the slave device The maximum count is 65535 and then the counter rolls over to zero and begins counting again 6 8 8 Comm 2 Starting Address Errors 73H A read indicates the number of Comm 2 Starting Address Errors that occurred in the slave device The maximum count is 65535 and then the counter rolls over to zero and begins counting aga...

Страница 79: ...ounting again 6 8 16 Modbus Cal Error 7BH Calibrate error register is read only A 1 shows there was a calibration error 6 8 17 Clear Comm 2 UART Errors 7CH Writing a 0 to the bit activates the Clear Comm 2 UART Errors function which resets all of the Modbus UART Error counters to zero The function is active momentarily and will reset automatically after being used 6 8 18 Clear Comm 2 Modbus Errors...

Страница 80: ... Phone 353 91 751175 Fax 353 91 751317 Email info gmil ie SINGAPORE No 2 Kallang Pudding Rd 09 16 Mactech Building Singapore 349307 Phone 65 6 748 3488 Fax 65 6 748 1911 Email genmon gmpacifica com sg MIDDLE EAST P O Box 61209 Jebel Ali Dubai United Arab Emirates Phone 971 4 8143814 Fax 971 4 8857587 Email gmme generalmonitors ae Table 28 General Monitors Locations The Gassonic Observer i is manuf...

Страница 81: ...ral Monitors The customer will assume all liability for the misuse of this equipment by its employees or other personnel All warranties are contingent upon proper use in the application for which the product was intended and does not cover products which have been modified or repaired without General Monitors approval or which have been subjected to neglect accident improper installation or applic...

Страница 82: ...t FQLO setting 28 meters 92 ft Medium to low background noise Classic Mode 0 1 kg sec Ultra high 7 meters 23 ft High 12 meters 39 ft Medium 18 meters 59 ft Low 24 meters 79 ft Cable Requirements Max cable length between Observer i and power source 24 VDC 20 ohm 2 08 mm2 14 AWG 1 809 m 5 928 ft Operating Temperature Range 40 C to 60 C 40 F to 140 F Operating Humidity Range 10 95 RH non condensing H...

Страница 83: ...00 161 35 87 148 Table 30 Current vs Input Voltage AWG mm2 Ohms per Km Ohms k feet 10 5 27 3 28 1 00 12 3 31 5 21 1 59 14 2 08 8 29 2 53 16 1 31 13 2 4 01 18 0 823 20 95 6 39 20 0 519 33 31 10 15 Table 31 Resistance of Copper Wire Based on a 24 volt supply and 15 volts at the Gassonic Observer i the recommended wire sizes are shown below AWG mm2 FEET METERS 10 5 27 15000 4573 12 3 31 9434 2880 14 ...

Страница 84: ...r n voltage at able drop divid able e ohms per m 1 2 Groups B 1 2 Groups E C to 60 C Ty H2 Gb T6 Ex B H2 T6 Gb C T85 C Db 40 C to 60 C M certified to IE ved by the HA atible with Em in Emerson P 2 EN 61000 4 re size instrument 2 ded by Curre meter 15 3 2 B C and D E F G Class ype 4X tb IIIC T85 C C IP66 EC 61508 as ART Commun merson 375 Fie Process Mana 0 6 4 G 2 24 15 nt required by 28 4573 me s ...

Страница 85: ...ation Equipment 80510 1 1701 Portable Calibrator 8 3 3 Test Equipment SB100 1 1 SB100 Ultrasonic Bump Tester 8 3 4 Spare Parts Description Part Number Allen Screw M6x20 928 381 Lock Washer 928 651 O ring 925 5108 Microphone 805773 1 Sound Source Assembly 805554 3 Magnet stick 80499 1 Mounting Bracket and Hardware 80601 1 Windscreen 80333 1 Windscreen Support Assembly 805708 1 12 mm Ratcheting Wren...

Страница 86: ...hat the new microphone 805773 1 has two spring pin contacts Be careful not to cross thread the microphone as it is installed It should screw in smoothly Replace the windscreen support assembly and then the windscreen Twist the windscreen back and forth a few times so that it seats properly over the support Calibrate the instrument per the calibration procedure Figure 10 Microphone Replacement ...

Страница 87: ...tector Furthermore a magnet stick is needed for this operation When performing the sound source calibration make sure that nothing is blocking the path from the sound source to the microphone Furthermore ensure that the operator does not hold his her hands close to the detector when the sound source calibration is being performed It is advised to stand behind the sound source when performing the c...

Страница 88: ...The unit will display DONE for 3 seconds which will indicate that the sound source sound level reference was set to the dB level shown on the display and there after returns to normal operation see flow chart 1 NOTE If no switch is activated for an interval longer than 1 minute the unit will return to normal operation without setting the new reference 2 The sound level is lower than 74 dB If the s...

Страница 89: ...ispose according to WEEE regulations For further Gassonic product WEEE disposal information please visit www generalmonitors com faqs All other countries or states please dispose of in accordance with existing federal state and local environmental control regulations ADDENDUM Product Disposal Considerations ...

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