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1. PROPRIETARY NOTICE The contents of this instruction manual are proprietary to the Manufacturing Division of Heath Consultants Incorporated Reproduction of this manual in whole or in part is prohibited without the express written consent of Heath Consultants Incorporated Heath Consultants Manufacturing Division operates under a continual product improvement program and reserves the right to make improvements and or changes without prior notification This manual supersedes all previous manuals for this instrument COPYRIGHT 2002 HEATH CONSULTANTS INCORPORATED HPN MANUAL 0715630 Rev C HPN ODORATOR Complete Unit 0705637 ODORATOR User s Manual Heath Consultants Incorporated 8 Houston TX 713 844 1300 Fax 713 844 1309 1 800 HEATH US ATEN 1 CONSULTANTS Heath Leadership Innovation Performance www heathus com Then Now and Tomorrow INTRODUCTION Natural Gas Methane to be analyzed enters the ODORATOR through the barbed fitting at the gas supply intake port Internally the gas passes through an internal five micron filter to the input of a low pressure regulator It then passes from the output of the low pressure regulator to the flow valve This valve located on the front panel of the ODORATOR is operated by the user After passing through the valve when opened the gas enters the mass flow sensor This is the heart of the ODORATOR The mass flow sensor responds to gas flow within the2. The following suggestions will expedite the repair of your instrument 1 2 Contact Heath Customer Service at 800 432 8487 for an RA Package carefully using the original shipping carton and cushions if available and return all components Specify your complete shipping and billing addresses Specify the instrument or product name model number and serial numbers on all correspondence Include a brief description of the problem you are experiencing and specify the person and phone number to be contacted for information Customer Service Manufacturing and Instrument Repair Locations CORPORATE HEADQUARTERS Heath Consultants Incorporated 9030 Monroe Road Houston Texas 77061 Phone 713 844 1300 Fax 713 844 1309 www heathus com MANUFACTURING AND WARRANTY SERVICE Heath Consultants Manufacturing Division 9030 Monroe Road Houston Texas 77061 Phone 713 844 1350 Fax 713 844 1309 www heathus com 26 SERVICE SALES CUSTOMER SERVICE AND INSTRUMENT REPAIR National Toll Free 1 800 HEATH US 1 800 432 8487 REGIONAL SALES CUSTOMER SERVICE AND INSTRUMENT REPAIR Eastern Region Heath Consultants Incorporated 119 North Water Street West Newton PA 15089 Phone 724 872 3007 Fax 724 872 3177 Southwest Region Heath Consultants Incorporated P O Box 75130 Houston TX 77234 9030 Monroe Road Houston TX 77061 Phone 713 844 1300 Fax 713 844 1309 Western Region Heath Consultants Incorporated P O
3. Box 1267 W Sacramento CA 95691 501 D Harbor Boulevard W Sacramento CA 95691 Phone 916 371 2520 Fax 916 553 3001 27 SERVICE NOTES 28 SERVICE 29 Heath Consultants Incorporated operates under a continual product improvement program and reserves the right to make improvements and or changes without prior notification Heath Consultants Incorporated Houston TX 713 844 1300 Fax 713 844 1309 1 800 HEATH US www heathus com i IEATH CONSULTANTS
4. and specific parts that are available from the factory or Regional Office for repair or replacement purposes ok x RR RR 0715626 0715627 0715628 0715664 0715805 0715686 0715630 0715631 0715632 0711517 0715826 0715813 0715822 0715834 0715835 0715842 0715843 0715814 0110679 0717451 0817090 0715685 0715825 8307484 0715668 0715669 0715868 0715687 0715690 0715820 ASSY TOP PANEL ASSY CHASSIS PCB MAIN ASSY ASSY BLOWER ASSY SAMPLING HOSE ASSY FLOW SENSOR MANUAL ODORATOR USER S CALIBRATION CHART METHANE FILTER IN LINE 5 MICRON Battery Alkaline C size Tubing available in various lengths Zero Potentiometer 10 turn Knob black Guard READ switch Button black READ switch Spring Exhaust Spring Intake Regulator Internal Low Pressure O Ring Seal Regulator Adapter Motor Blower Switch power ON OFF Switch push button READ Wheel Blower Screw 6 32 x 2 25 long Housing Fuseholder In line Fuse AGC fast blow 1 amp Valve Flow Stainless Steel Cartridge replacement for 0715868 LCD Label Instructions 12 MAINTENANCE 0715859 ASSY BATTERY COMPARTMENT 0715925 ASSY HANDLE 0715926 Bracket Handle 0716893 Overlay Calibration chart Older models may take different parts Contact your nearest Heath Office for assistance 13 MAINTENANCE Appendix A Alternate Test Method An alternate test method often employed by gas utilities is
5. and while not hooked up to a gas supply Sniff the exhaust port Inhale normally through your nose If no odor is detected turn the ODORATOR off The ODORATOR has not absorbed the odorant If an odor is detected turn the ODORATOR off and send it to the nearest Heath Repair Center Regional Office listed on page 27 The odor is an indication that the ODORATOR has absorbed the odorant and must have its internal tubing replaced and gas flow components purged OPERATION ODORATOR Top Panel Figure I 1 Gas Inlet 5 Read Switch 2 Power Switch 6 Flow Adjust Valve 3 Power Indicator 7 Fine Zero 4 LCD 8 Blower Exhaust OPERATION Chapter llI CALIBRATION Field Calibration Procedure A Required Equipment de Field Calibration Test Kit Includes items a i listed below HPN 0727675 Lecture Bottle 99 9 methane CH4 balance zero air refillable HPN 0123519 Regulator high pressure Lecture bottle type used to lower lecture bottle pressure to 10 p s i g 1 p s i g HPN 0111004 Regulator low pressure Low pressure type used to lower lecture bottle pressure to 10 p s i g outlet pressure to seven inches of water column HPN 0716725 Combustible Gas Indicator C G I Dual scale type 100 L E L scale plus a 10 L E L scale GMI GASURVEYOR 3 calibrated for methane is included HPN 22012220 Adapter Blower exhaust port on the ODORATOR This is the outlet sample point for the above C G
6. on T1 pins 1 to 2 and T1 pins 3 to 4 will enable the LCD for calibration purposes only CALIBRATION Field Calibration System HPN 0727675 Low Pressure Potentiometer Calibration Regulator Locations See Adapter Fig 2 High Pressure Regulator Lecture Bottle 99 9 CH4 N m Blower Exhaust Port Gauge 7 Water C G Column Figure 3 Setup Valve NOTE Factory calibration requires the use of a mass flow meter to set the input gas flow rate to 150 sccm relative to air using a flow meter calibrated to air flow 10 Chapter Ill MAINTENANCE Troubleshooting Chart SYMPTOM LO BATT appears on LCD Motor and LCD will not LCD turns on but motor does not Low Air Indicator L comes on LCD will not zero with gas supply line attached to the ODORATOR LCD will not zero with gas supply line attached to the ODORATOR PROBABLE CAUSE Weak batteries Weak batteries or fuse Motor leads may have become disconnected Leads to blower may have become disconnected Leads on sensor may have become disconnected Leaky flow valve in off position 11 REMEDY Replace batteries Replace batteries replace fuse inspect wiring Connect motor leads Connect blower leads Connect leads sensor Replace flow valve and recalibrate Parts List MAINTENANCE The following list specifies ODORATOR assemblies
7. range of the flow valve The signal from the mass flow sensor is then processed converted to a digital signal and fed to a liquid crystal display LCD The gas from the mass flow sensor then passes to the mixing chamber assembly where it is combined with air drawn in by a blower motor and impeller The operator then samples the gas air mixture at the exhaust sniffing port When odorant is detected the operator presses the READ switch to display percent natural gas The electronics and the speed of the blower motor are calibrated so that the concentration of the gas air sample at the exhaust port agrees with the LCD at the 20 Lower Explosive Level L E L which is 1 gas All other values must be corrected using the chart The correction chart is included to linearize the instrument in its range To use the chart record both the ODORATOR reading and the corrected reading For ODORATOR readings not specified in the chart linearly interpolate between the next highest and lowest points on the chart Do not extrapolate beyond the readings on the chart Depending on how much the valve is opened the concentration of gas air at the blower exhaust port will be anywhere from zero to approximately 2 50 The LCD can only read to 1 99 Concentrations above 1 99 will be indicated by the LCD having its last two digits blanked out as When the ODORATOR is turned on the operator might momentarily notice the letter L on the LCD when the READ
8. switch is depressed If the L fails to disappear it may indicated insufficient blower speed such as would occur if the motor and impeller weren t turning at all or too slowly The L indicates low blower speed When it is time to replace the batteries LO BATT will be indicated in the upper left corner of the LCD when the READ switch is depressed WARNINGS AND CAUTION IT IS ESSENTIAL THAT USERS OF THIS INSTRUMENT READ UNDERSTAND AND FOLLOW THE INSTRUCTIONS FOR OPERATION AND MAINTENANCE AND THE PRECAUTIONS CONTAINED IN THIS MANUAL TO INSURE THE INSTRUMENT IS USED IN APROPER AND SAFE MANNER DURING OPERATION KEEP THE ODORATOR AWAY FROM OPEN FLAMES INLET SUPPLY PRESSURE SHOULD NOT EXCEED FOUR P S I G INLET PRESSURES IN EXCESS OF FOUR P S IG WOULD RUPTURE THE LOW PRESSURE REGULATOR DIAPHRAGM WHICH WOULD VENT THE GAS OUT OF THE INSTRUMENT AND CAUSEAN INSTRUMENT FAILURE WHEN CALIBRATING THE ODORATOR YOU WILL BE WORKING WITH FLAMMABLE GAS NORMALLY METHANE GAS WHICH IS POTENTIALLY DANGEROUS IF NOT HANDLED PROPERLY METHANEGAS FROMALECTURE BOTTLE MAY BE ODORLESS AND IS FLAMMABLE IN CONCENTRATIONS OF APPROXIMATELY 5 0 TO 15 0 PERCENT BY VOLUME IN ARR WHEN YOU ARE NOT CALIBRATING OR OPERATING THE ODORATOR CLOSE ALL VALVES AND TURN THE ODORATOR OFF ANY TIMEGAS IS BEING PASSED THROUGH THE ODORATOR THE POWER SWITCH MUST BE TURNED ON THIS WILL DILUTE THE GAS AT THE BLOWER EXHAUST AND PREVENT POCKETS OF GAS ACCUMUL
9. the blower exhaust port approximately 3 4 Your upper lip should lightly touch the front edge of the blower exhaust port 9 When a change in odor or first faint smell of gas is detected stop turning the flow valve and push the read switch Make a note of the percent gas reading shown on the LCD 4 This is the threshold limit value or threshold value Considerable variation will exist between individuals in detecting this threshold value The correction chart is included to linearize the instrument in its range To use the chart take the ODORATOR reading and look up the corrected reading For ODORATOR readings not specified on the chart linearly interpolate between the next highest and lowest points on the chart Do not extrapolate beyond the readings on the chart NOTE The operator should frequently pause when sniffing for odorant moving the nose away 2 OPERATION from the instrument breath fresh air then continue the test 10 11 12 13 This precaution is necessary because the sense of smell fatigues rapidly during this type of test Close the gas supply valve Disconnect the sample hose from the gas supply outlet Fully open the flow adjustment valve counterclockwise and leave the ODORATOR on for approximately one minute after the test to purge the mixing chamber Turn the ODORATOR off Periodic Test A B 2 Every thirty days the ODORATOR should be operated with the power switch on
10. 1 00 The Span potentiometer is located on the internal main PCB see Figure 2 on page 9 for its location Field calibration is now complete Turn off all valves the power switch and disconnect the ODORATOR from the field calibration system If any of the above readings are not correct return the ODORATOR to the Heath Repair Center Regional Office for further adjustment and or repairs NOTE Factory calibration requires the use of a mass flow meter to set the input gas flow rate to 150 sccm relative to air using a flow meter calibrated to air flow Potentiometers on the PCB See Figure 2 A Speed Potentiometer This potentiometer is set during factory calibration for a C G reading of 20 L E L Span Potentiometer This potentiometer is set during factory calibration for the LCD to read 1 00 at the 20 L E L reference point 8 CALIBRATION C Coarse Zero Potentiometer This potentiometer is set to work in conjunction with the FINE ZERO control on the front panel this control should NOT be changed D Flow Potentiometer This potentiometer is factory set to detect a slow or stalled blower motor This adjustment does not affect the calibration and will set the point where the LCD L comes on Potentiometer Location TELLELLIOL ALAA Tr I et age ka FELII Figure 2 1 Flow 3 T1 1 2 3 4 from l r 5 Speed 2 Zero 4 Span Factory Jumpers Installing jumpers
11. 270 660 600 000 600 000 0009 00 MAINTENANCE VEL 66 0 980 020 290 970 260 870 610 600 000 0007 dn OFL 96 0 680 890 990 0 960 870 610 600 000 000 dn 20 8660 08 0 990 690 ero 960 400 810 600 000 0002 dn EO 060 820 790 090 170 veo 970 810 800 000 0004 dn 00 28 0 92 0 c90 OS 0 oro 0 90 0 ZVO 80 0 00 0 opnnIY UOneIlled 47000 seBueyy SPNUNV 10 HEUD UONDSUOD SEX EINEN Jenloy 960 680 020 690 870 860 260 700 910 800 000 000 c6 0 080 690 290 9170 260 060 600 910 200 00 0 0007 umoq obed but MOTTOJF 0434 UO UOTJOSIIOO AOF SUOTJONIJISUJI 880 920 990 790 770 960 600 000 910 200 000 000 umoq 780 620 690 050 cv 0 660 870 100 YLO 200 000 0007 umoq 080 690 090 670 070 260 930 000 vl0 900 00 0 0009 umoq OOM 060 080 020 09 0 OG 0 oro 060 000 oro 00 0 Bupeay 23 MAINTENANCE The Heath Odorator mixes air with natural gas to allow an operator to determine the percent gas level at which odorant is just detected in the gas As altitude is increased the air becomes thinner and the actual values indicated in a single column chart must be modified to reflect the change in air density Use the Altitude Change Correction Chart as follows 1 Use the Odorator to determine the odorant threshold as per the Instruction Manual 2 Write down the reading from the digital d
12. 4 P S LG NOTE Connect the ODORATOR to the gas supply with a non absorbing odor free hose such as high grade urethane PVC or Tygon NOTE Operators of the ODORATOR should be selected with due consideration to smoking habits colds and other conditions of health since these factors affect the sense of smell It is desirable to select operators with an average sense of smell in order to obtain reasonably consistent results from the use of this instrument NOTE See Figure 1 on page 4 for reference to the following steps A Procedures NOTE See Appendix A for Alternate Test Method 1 Connect the sample hose to the gas supply outlet valve and to the ODORATOR inlet port 1 1 OPERATION 2 Gently turn the flow valve 6 clockwise until closed 3 Turn the power switch 2 to on position 4 Open the gas supply outlet valve 5 For new instruments turn the flow valve 6 counter clockwise fully to open the valve This will condition the ODORATOR system Wait for about 30 seconds or until you smell an odor of gas at the blower exhaust which ever occurs first then immediately turn the flow valve clockwise to fully close the valve 6 Push the read switch 5 and while holding it down adjust the zero knob 7 until the LCD reads 00 Release the read switch 7 Sniff the un odorized air stream at the exhaust port 8 Slowly open the flow valve counter clockwise while sniffing with your nose directly over
13. ATING 100 L E L IS APPROXIMATELY EQUAL TO 5 METHANE GAS BY VOLUME IN AIR AS LONG AS THE C G I READS BELOW THIS YOU SHOULD NOT HAVE ANY PROBLEM WITHA FLAMMABLE MIXTURE BUILDING UP ANY SUSPICION OF A GAS LEAK BY UNEXPLAINED SOUND OR OPERATION OF THE ODORATOR IS REASON TO IMMEDIATELY SHUT OFF THE GAS SUPPLY VALVES AND ODORATOR POWER SWITCH THEN SEEK THE CAUSE DURING CALIBRATION KEEP THE ODORATOR AWAY FROM OPEN FLAMES INLET PRESSURE SHOULD NEVER EXCEED 4 P S I G AND DO NOTOBSTRUCT OR BLOCK THE BLOWER INTAKE OR EXHAUST CAUTION BECAUSE OF INHERENT LIMITATIONS LIQUID CRYSTALDISPLAYS SHOULD NOT BE SUBJECTED TO EXTREMES OF TEMPERATURE OR HUMIDITY IFTHE UNIT IS EXPOSED TO A TEMPERATURE BELOW FREEZING OR ABOVE 494C 1204F THE LIQUID CRYSTAL DISPLAY MAY TEMPORARILY CEASE TO FUNCTION PROPERLY AND IN SOME CASES PERMANENT DAMAGE MAY RESULT IT IS THEREFORE RECOMMENDED THAT THE INSTRUMENT NOT BE SUBJECTED TO EXTREME CONDITIONS SUCH AS A CLOSED VEHICLE IN DIRECT SUNLIGHT OR CONTINUOUS SUB FREEZING TEMPERATURES USEATALTITUDE THE ODORATOR MUST BE USED WITHIN 1000 FEET OF ITS CALIBRATION ALTITUDE FOR ACCURACY READING CORRECTION CHARTS AS FOUND IN APPENDIX D MUST BE USED FOR ALTITUDES GREATER THAN 1000 FEET TABLE OF CONTENTS INTRODUCTION ors ie eise es skade WARNINGS AND CAUTION oseese TABLE OF GONTENTS sesse ss eie Ie bei es CHAPTER OPERATION Instructions for Operation errrrnnrrnnnnrnnnnrrrnnnnnnnn
14. I HPN 0716773 Tubing Blower exhaust adapter to the C G inlet 2ft long and 5 CALIBRATION for the lecture bottle regulator outlet to low pressure regulator inlet also 2ft long HPN 8301846 by the ft g Fitting 1 8 MPT x 3 16 tubing barb Lecture bottle regulator outlet 1 8 FPT to tubing 3 16 barb HPN 8300323 h Accessories Cylinder disposable 1 0 methane balance zero air HPN 0716831 Adapter valve HPN 09140000200 and test bag HPN 09140009607 are needed to utilize disposable cylinders These items are required to verify or adjust the calibration of the GMI GASURVEYOR 3 i Optional Equipment GMI filter Box of 10 for input filtration of the GMI GASURVEYOR 3 HPN 22210077 WARNING ANY SUSPICION OF A GAS LEAK BY UNEXPLAINED SOUND OR OPERATION OF THE ODORATOR IS REASON TO IMMEDIATELY SHUT OFF THE GAS SUPPLY VALVES AND ODORATOR POWER SWITCH THEN SEEK THE CAUSE DURING CALIBRATION KEEP THE ODORATOR AWAY FROM OPEN FLAMES INLET PRESSURE SHOULD NEVER EXCEED 4 P S LG AND DO NOT OBSTRUCT OR BLOCK THE BLOWER INTAKE OR EXHAUST USE AT ALTITUDE SEE APPENDIX D CALIBRATION B Procedure 1 Calibrate or verify the accuracy of the C GI with 1 20 L E L methane balance air mixture on the 100 L E L scale NOTE Set up the field calibration system using Figure 3 on page 10 as your guide with all valves and power turned OFF See Figure 1 on page 4 for the locatio
15. ame altitude will use the correction chart found on the instrument 19 MAINTENANCE Odorators that are field calibrated must have an accurate refer ence instrument or cgi that is also in calibration at that altitude It is recommended that a reference gas be used to verify proper calibration instrument readings The altitude correction charts are based on anormal atmosphere Abnormal atmospheres as caused by extreme weather conditions can affect the measurements and using the Oderator under these conditions is not recommended Usage instructions are included with each chart but both use the difference in altitude between the working or measurement alti tude and the calibration altitude to select the respective correction values versus the Odorator s readings Note The correction charts support new style meth ane Odorators only Instruments manufac tured before July 1997 that have not been upgraded calibrated to propane or to a natu ral gas methane reference other than 1 will not use the altitude correction charts Consult the factory for using older style Oderators at altitude To identify an Odorator s style or to tell if an upgrade has been performed check the top panel to see if there is a snap in bezel or a clear window in the overlay covering the display LCD Older style Odorators have a snap in bezel over the LCD Odorators not calibrated for 1 natural gas methane have correction charts for that gas
16. ased Altitude Correction Chart as follows 1 Use the Odorator to determine the odorant threshold as per the Instruction Manual 2 Write down the reading from the digital display on the Odorator 3 Write down the altitude at which the Odorator was last calibrated as found on the exhaust port label 4 Determine the altitude at which you are now measuring the odorant threshold and write it down 5 Subtract the calibration altitude from the measurement altitude round to the nearest 1000 feet and write it down Use this value and select your respective Up column If zero use the Calibration Altitude column 6 Use the Odorator reading and either look up the actual gas value from the respective column or interpolate the actual gas value for Odorator readings not shown on the chart and write it down Example An Odorator reading of 0 23 is taken at 3000 ft from a calibration altitude of 0 feet sea level The difference in altitude is 3000 feet This corresponds to the Up 3000 column Step 5 The reading of 0 23 lies between actual values of 0 28 and 0 19 Interpolating an actual gas value for a reading of 0 23 yields an actual value of 0 22 gas using the following equation Actual Chart Lower Chart Actual Chart Oderator Actual Gas Gas Value x Reading x 10 Value Difference Difference For the example Gas Actual JE Gas 0 19 0 28 0 19 x 0 23 0 20 x 10 0 22 22 LVL c0 I 88 0 620 6950
17. ed by Heath Consultants Incorporated are warranted to be free from defects in material and workmanship for one 1 year from the date of shipment Furthermore the warranty on authorized repairs in the Houston Factory Service Center FSC and other regions is ninety 90 days materials and thirty 30 days labor This repair warranty does not extend any other applicable warranties Our warranty covers only failures due to defects in materials or workmanship which occur during normal use It does not cover failure due to damage which occurs in shipment unless due to improper packing or failures which result from accident misuse abuse neglect mishandling misapplication alteration modification or service by anyone other than a Heath warranty repair location Battery and damage from battery leakage and all expendable items such as filters and Plunger Bar rods are excluded from this warranty Heath s responsibility is expressly limited to repair or replacement of any defective part provided the product is returned to an authorized warranty repair location shipped prepaid and adequately insured Return shipping charges and insurance will be paid by Heath warranty expense We do not assume liability for indirect or consequential damage or loss of any nature in connection with the use of any Heath product There are no other warranties expressed implied or written except as listed above 25 SERVICE Return Authorization RA
18. isplay on the Odorator 3 Write down the altitude at which the Odorator was last calibrated as found on the exhaust port label 4 Determine the altitude at which you are now measuring the odorant threshold and write it down 5 Subtract the calibration altitude from the measurement altitude round to the nearest 1000 feet and write it down 6 Positive values correspond to Up columns and negative values to Down columns from Step 5 Select your respective column using the value from Step 5 If zero use the Calibration Altitude column 7 Use the Odorator reading and either look up the actual gas value from the respective column or interpolate the actual gas value for Odorator readings not shown on the chart and write it down Example An Odorator reading of 0 23 is taken at 2700 feet from a calibration altitude of 5500 feet The change in altitude is 2800 feet This corresponds to the Down 3000 column Step 6 The reading of 0 23 lies between actual values of 0 22 and 0 15 Interpolating an actual gas value for a reading of 0 23 yields an actual value of 0 17 gas using the following equation Actual Chart Lower Chart Actual Chart Oderator Actual Gas Gas Value x Reading x 10 Value Difference Difference For the example Gas Actual 015 0 22 0 15 x 0 23 0 20 x 10 0 17 24 Chapter IV SERVICE INFORMATION Warranties and Warranty Repair All instruments and products manufactur
19. n of the top panel controls 2 Turn the C GI on and adjust the instrument to zero on the 100 L E L scale Turn the ODORATOR power switch to the ON position Push the READ switch and hold it down Note that the low air indicator L on the LCD may be on 3 Open the valve on the 99 methane gas lecture bottle Open the valve at the outlet of the low pressure regulator Observe the ODORATOR LCD The reading should settle and not change if it doesn t go to Step 12 Release the READ switch 4 Open the ODORATOR flow valve a few turns counter clockwise 5 Ifneeded adjust the low pressure regulator to read seven inches of water column Also if needed adjust the lecture bottle regulator to read ten p s i g on its output gauge 6 Close the ODORATOR flow valve by turning it clockwise until it stops DO NOT FORCE IT 7 Push the ODORATOR READ switch and hold it down The low air indicator L on the LCD should not be displayed if it is go to Step 12 10 11 12 CALIBRATION Adjust the ODORATOR zero knob until the LCD reads 00 Release the READ switch Open the ODORATOR flow valve 10 turns counter clockwise and adjust the speed potentiometer see figure 2 on page 9 until a reading of 20 L E L is indicated on the C G Push the ODORATOR READ switch and hold it down The LCD should read 1 00 If it does not adjust the Span potentiometer until the LCD reads
20. nnn A Procedures see sede see ee se eek ee ee ee ee ee Peiiodi Test aus Front Panel EE ee CHAPTER II CALIBRATION Field Calibration Procedure ee Re ee ee A Required Equipment esse se ee ee ee ee B Procedur S 2 EES EKS KE eres Potentiometers On The PCB ee ee ee ee A Speed Potentiometer iii ese ee ee B Span Potentiometer se ee ee ee ee C Coarse Zero Potentiometer D Flow Potentiometer cccccceceeceessseeeeeeees Potentiometer Location FOUE EP Ee ER GE SERE OE EE De DE Field Calibration System PUN OE EE OE CHAPTER III MAINTENANCE INFORMATION Troubleshooting Chart Luem n anvanasaseereuenem PANS Lis eea ea Appendix A Alternate Test Method l Appendix B Field Calibration amp Periodic Test Records Appendix C ODORATOR Natural Gas Calibration Chart Appendix D Use ANG uns CHAPTER IV SERVICE INFORMATION Warranties and Warranty Repair ie se Customer Service Manufacturing and Instrument Repair LG svenn og EE NE OE N Vi Chapter I OPERATION This Chapter discusses in detail the proper steps to safely operate the ODORATOR Also included are procedures for periodic testing and identification of the ODORATOR s controls Operation of the ODORATOR WARNING DURING OPERATION KEEP THE ODORATOR AWAY FROM OPEN FLAME INLET SUPPLY SHOULD NOT EXCEED
21. or reference level and can be identified by the charts as the reading and actual values will be equal at the reference level 20 LE I VEL 86 0 180 990 690 ero 660 000 110 000 0000 1 dn MAINTENANCE 60 GEL 960 080 790 190 cv 0 260 000 010 000 0006 00 960 GOT 760 820 690 OG 0 cb 0 160 100 010 000 0008 dn ET I ZO 2060 920 290 670 HO 160 100 010 000 0002 dn 00 VOL 060 720 09 0 870 0F0 060 070 010 00 0 0009 dn LVL c0 I 880 620 690 270 660 600 000 600 000 0009 dn VEL 66 0 980 020 2490 970 260 870 610 600 000 000r dn ort 960 8680 890 990 0 960 800 610 600 000 0008 00 obed but MOTTOJ 0434 UO UOTJOSIIOO AOF SUOTJONIJISUJI 20 8660 080 990 690 ero 960 2400 810 600 00 0 0002 dn 80 060 820 790 2050 HO 780 900 810 800 000 0001 dn 00 28 0 920 c90 09 0 oro 660 90 0 ZVO 80 0 00 0 pn n y Pupe y UOREAOHED J0 2I0PO SPN PESeSJOU JO HEUD UONDEJJO Sed jeunyen Jenloy 00 06 0 08 0 040 090 09 0 oro OE 0 070 oro 00 0 21 MAINTENANCE The Heath Odorator mixes air with natural gas to allow an opera tor to determine the percent gas level at which odorant is just de tected in the gas As altitude is increased the air becomes thinner and the actual values indicated in a single column chart must be modified to reflect the change in air density Use the Incre
22. tion as a permanent record of field calibration and testing Field Calibration amp Periodic Test Record Periodic Field Calibration Test Date Operator Name MAINTENANCE Field Calibration amp Periodic Test Record Periodic Field Calibration Test Date Operator Name MAINTENANCE Field Calibration amp Periodic Test Record Periodic Field Calibration Test Date Operator Name MAINTENANCE Appendix C Odorator Correction Chart for Methane 1 reference The 99 9 pure methane input flow rate is set at 150 0 sccm relative to air as a reference flow point and the motor speed control is adjusted to achieve a 20 L E L at the blower output referenced to an external C G Odorator span is also adjusted at this point to read 1 00 This chart assumes the Odorator has been properly zeroed and allowed to run for at least one minute Odorator Gas Actual L E L Actual Gas 00 0 0 0 00 10 1 4 0 08 20 3 4 0 17 30 5 0 0 25 40 6 6 0 33 50 8 0 0 40 60 10 0 0 50 70 12 4 0 62 80 15 0 0 75 90 17 4 0 87 1 00 REF 20 0 REF 1 00 REF 1 10 22 0 1 10 1 20 26 6 1 33 1 30 31 2 1 56 1 40 37 2 1 81 1 50 41 0 2 05 This chart reflects the use of the Heath calibration adapter to determine the location of sampling the blower output for the C G I which is consistent with actual instrument use Any other method will produce different values 18 MAINTENANCE Appendix D Odorator Use at Altitude The Odorator works b
23. to determine the odor strength at a predetermined gas in air concentration This alternate procedure is as follows 1 Set up and operate the ODORATOR as detailed in Steps 1 through 7 in the Instructions for Operation section Close the flow valve completely by turning it clockwise Sniff the un oderized air stream at the blower exaust port Move your nose and face away from the ODORATOR Depress the READ switch while opening the flow valve until the desired percent gas reading is shown on the LCD The reading may fluctuate slightly as the gas flow changes while the flow valve is being opened This is normal Once the operator stops opening the flow valve the gas reading will remain constant The operator should then place their upper lip against the edge of the exhaust port and sniff the gas air mixture coming out Rate the odor strength as 1 absent 2 barely detectable 3 readily detectable 4 strong 5 very strong 14 MAINTENANCE Appendix B Field Calibration and Periodic Test Records The ODORATOR should be calibrated on an annual basis whenever electronic or mechanical components are replaced except batteries or whenever it is felt the instrument is not operating properly The periodic test should be conducted every 30 days Procedures for these tests may be found on page 3 of this manual The following form is provided for your convenience It should remain in the manual and be kept in a safe loca
24. y allowing a metered amount of sample gas usually natural gas to mix with a fixed amount of air and the mixture is then tested by an operator for odorant detection The internal components of the Odorator are very stable over changes in altitude The air that is mixed however thins out with increas ing altitude and must be accounted for An altitude change of 3000 feet from the calibration can produce reading discrepancies of nearly 10 which must be corrected It is recommended that the Odorator readings be corrected whenever the altitude change from calibration is 1000 feet of more The calibration altitude may be found on the exhaust port label Two correction charts with accompanying usage directions have been developed The first chart provides corrections for increased altitudes only Most instruments will be used at altitudes higher than their calibration altitudes Odorators calibrated at the fac tory have a effective calibration altitude of sea level 50 feet Many gas utilities send their Odorators to the Heath factory for an annual calibration hence most instruments will be used at alti tudes higher than their calibration altitude The second chart pro vides corrections for altitude changes which may be up to 5000 feet higher or lower than the calibration altitude Odorators cali brated at one altitude and then used at a lower altitude will make the most use of this chart An Odorator calibrated and used within 1000 feet of the s
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