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JEROME ® 631-X ™ HYDROGEN SULFIDE ANALYZER Operation Manual January 2003 Arizona Instrument LLC 1912 W 4 th Street Tempe, AZ 85281 (800) 528-7411 (602) 470-1414 Fax (480) 804-0656 http://www.azic.com email: azi@azic.com - General intl@azic.com - International support@azic.
JEROME 631-X Hydrogen Sulfide Analyzer Operation Manual PROPRIETARY RIGHTS NOTICE This manual contains valuable information and m a terial developed by Ariz ona Instrument LLC for use with the Jerome 631-X Hydrogen Sulfide Analyzer .
Table of Contents 1. FOR THOSE WHO CAN'T READ TH E WHOLE MANU AL NOW ................................................................. 4 2. INTRODUC TION ............................................................................................
1. FOR THOSE WHO CAN'T RE AD THE WHOLE MANUAL NOW This manual contains details that will optimize th e results and the life of your instrument. Read and refer to the manual for complete detail s on operation, m aintena nce and troubleshooting, special voltage input s and data output.
• Check the voltage setting (110 or 220 VAC) on the back of the instrument. Ensure that it is se t to the correct voltage. If the pointer is not aligned to the loca l voltage, turn the selector to point to the correct voltage.
2. INTRODUCTION The Jerome 631-X Hydrogen Sulfide Analyzer is an ambient air analyzer with a range of 0.003 ppm to 50 ppm (parts pe r million). CAUTION: The Jerome 631-X is for vapor use only. DO NOT allow the probe or the instrument's intake to be exposed to any liquid, dust or other foreign material.
Applications • Ambient air analysis • Odor nuisance monitoring • Regulatory compliance • Control room corrosion monitoring • Quality control • Scrubber efficiency testing • Accuracy chec.
Zero Air Filter The Zero Air Filter removes mercury vapor, mercaptans, and hydrogen sulfide from the air sample. Readings with the filter installed should be near zero.
AZI Customer Service 800-528 -7411 or 602-470-141 4 Page 9 of 50.
4. INSTRUMENT OPERATION LCD Codes LCD CODE EXPLANATION 000 Ready to sample .000 No hydrogen sulfide reading .8.8.8 Sensor saturated-regenerati on needed (refer to page 12) .H.H.H Sensor regeneration in progress (.H.H.H flashes) .L.L.L Re-zero needed (refer to page 13) .
Daily Operations Before each day's use of the Jerome 631-X, perform the following steps to verify proper instrument operation: • Press the power ON button. The digital meter displays 000. (Disregard the digital meter's initia l momentary reading.
Sensor Regeneration Sensor regeneration is needed to clear the 631- X sensor of any accumulated hydrog en sulfide. This simple procedure should be done: • At the beginning of the day on which the instrument is to be used. • During the day when the sensor becomes saturated.
Zero Adjust • To ensure air entering the instru ment is clean, install the aero air filter in the instrument’s intake and sample until the readings stabiliz e. • While pressing the ZERO button, turn the ZERO ADJUST potentiometer (shown at right) using the trimmer tool until the digital meter reads 0.
Sample Mode This is the standard operation mode and is used f or optimum accuracy. • Press the power ON button. The LCD displays 000. Disregard the LCD's initial m omentary readings. Recharge or replace the batte ry pack if the LO BAT indi cator REMAINS ON, see page 17 and/or page 21 if necessary.
Survey Mode The survey mode takes samples every 3 to 20 se conds automatically. The length of tim e varies with the hydrogen sulfide concentration. Use this mode to locate the source of hydrogen sulfide, such as a leak, a hot spot, or to assess areas of potentially high hydrogen sulfide concentrations.
Operating on AC Power or Generator • For stationary use, the 631- X may be operated on AC power. Operating the instrument on AC power at all times elim inates the need for the battery pack and its necessary maintenance. The battery may be unplugged or removed co mpletely whenever the instrument is operating on AC power.
Charging Batteries • Press the power OFF button. • Connect the AC power cord between the 631-X power receptacle and an AC power source. Complete battery rech arging takes 14 hours. The 631-X contains a trickle charger so it ma y be continually plugge d into an AC power source without damaging the battery pack.
5. MAINTENANCE Preventive Maintenance Calendar To keep the Jerome 631-X operating at peak perf ormance, follow the maintenance schedule below as a guide. Since maintenance is more a function of application and amount of use rather than time, your requirements m ay be different from the listed schedule.
Flow System The Jerome 631-X's flow system is the crucial li nk between the sensor and the sample. For the instrument to perform correctly, the flow syst em must be properly m aintained. The user maintainable components of this system are the intake filter (.
Internal Filters • Replace the internal filters after six (6) months of use, or as n eeded. • Press the power OFF button and unplug the power cord. • Remove the two (2) side screws from the inta ke end of the instrument and open the case. • Carefully disconnect the Tygon tubing from both ends of the filters and discard the old filters.
Replacing the Battery Pack • Press the power OFF button. • Unplug the power cord. • Remove the two (2) side screws from the intake end of the instrument and open the case lid. • Disconnect the battery connector from the board. • Loosen the two (2) captive screws holding the battery bracket and remove the bracket.
Changing the Fuse If the instrument display reads .P.P.P when the instrument is connected to AC power or when REGEN is pressed, or if the batt ery will not charge, the fuse may need to be replaced. The AC line power could also be less th an 100 VAC (220 VAC).
6. CALIBRATION The Jerome 631-X's gold film sensor is inherently stable and does not requir e frequent calibration. The interval between cali brations depends upon the application and frequency of use; however, the recommended interval is every 12 months.
7. 631-X TROUBLESHOOTING Symptom Possible Cause Solution Power Problems Unit does not turn ON. Unit turns on when power cord is plugged in. LCD displays 000 when instrument is operating on AC power. Discharged battery or Dead battery. Recharge battery for a minimum of 14 hours.
Sampling Problems Airflow is restricted during the sensor regeneration cycle, causing possible permanent damage. Kinks and crimps in the Tygon tubing. Periodically check the Tygon tubing inside the instrument. Refer to page 20. High erratic results. In ternal hydrogen sulfide contamination.
Miscellaneous Problems Display reads .P.P.P when regeneration is attempted. Power cord not attached. Blown fuse. Line voltage less than 100 VAC (or less than 200 VAC for 220 unit). Cycles dipswitch set incorrectly. Check power cord for connection Replace fuse.
8. JEROME 631-X TECHNIC AL SPECIFICATIONS Range 0.003ppm (3ppb) to 50ppm H 2 S in four graduated ranges Sensitivity 0.003ppm H 2 S Precision 5% relative standard deviation Accuracy Range 0: " 0.003ppm at 0.050ppm H 2 S Range 1: " 0.03ppm at 0.
Optional Communications Capability Alarm output 30V DC, 100mA Data output 1. RS-232 Serial, Baud Rate 1200 for use with data logger, and/or Jerome communication program . 2. RS-232 Serial data format with 0 & 20mA current logic levels; Baud Rate 1200 (special industrial applications) and Analog 20 mA output.
• Alarm output Maximum voltage 30 VDC Maximum current 100mAmp Pin assignments: Pin 9 Switched battery (+) Pin 10 Alarm output (open collector, active low) Pin 7 Battery ground (-) Pin 23.
9. ACCESSORIES & MAINTENANCE PARTS PART # ITEM DESCRIPTION Y631 0901 631 Accessory Kit (See pictures beginning on page 32) 1400 2002 Probe 1400 3010 Tubing Adapter, 1/4” to 1/8” 2300 0001 Trimmer Tool 2600 3039 .25 Fritware 6000 4003 Line Cord, 115 VAC - USA and Canada Alt.
Y6100 0057 Jerome Data Logger Includes the Jerome Data Logger and JCI Software Kit. Y6100 0054 Jerome Communication Software Kit Y411 0904 Hard Side Carry Case Includes a molded case with die cut foam rubber inserts to hold the Jerome 631-X and accessories.
1400 0052 Soft Field Carrying Case Hand/shoulder case with pockets for accessories. Spare Parts 1400 2002 Probe 2300 0001 Trimmer 1300 0031 1/8 x 3/16 reducer Z4000 0907 Battery Pack Assembly Z2600 39.
Y26003945 Intake Kit PS 151 Tube Nut 2600 3039 .25 inch fritware 2500 3001 Tygon tubing 1/8" I.D. (1 foot) 2500 3002 Tygon tubing 1/16" I.D. (1 foot) 4000 1011 115 VAC IDC battery charger Us.
4000 1012 230 VAC IDC battery charger Used to charge an uninstalled battery 6000 4003 100-120 VAC Line Cord Alternate – 200-0003 220-240 VAC Line Cord for England Alternate – 200-0008 220-240 VAC .
5100 1012 Spare Fuse 6000 1055 JeromeCommunication Interface Cable 6000 1045 Adaptor, RS-232, 9M/25F For current prices and delivery informat ion, call AZI Customer Service at (800) 528-7411 or (602) 470-1414.
11. APPENDIX A - 631-X FUNCTIONAL TEST MODULE The Jerome Hydrogen Sulfide Functional Test Module provides a fast and easy method of verifying that Jerome 631-X Hydrogen Sulfid e Analyzers are within specifications.
12. APPENDIX B - JEROME COMMUNICATIONS SOFTWARE The Jerome Communications Software (JCS) is used with 631-X Hydrogen Sulfide Analyzers that feature the communications configuration option. • The JCS allows the user to program the in strument for unattended m onitoring and to download recorded data stored in the Jerome data logger.
JCI Kit Contents • One disk containing the Jero me Communication Software • Jerome Communication Interface Cable, AZI P/N 6000 1055 • Cable Adaptor, SR-232, 9M/25F, AZI P/N 6000 1045 • User’s manual System Requirements • Instrument: Jerome 631-X with the comm unicat ions option.
13. APPENDIX C - INTERNAL DIP SWITCH SETTINGS The DIP switch identified as SW 2 on the 631-X control board is located at the top center of the board. CAUTION: Switch the instrument’s power to OFF before opening the instrument and changing DIP switch settings.
14. APPENDIX D - JERO ME 631-X OPTION BOARD Proper use of this board requires that the base in strum ent be fully functional and set corre ctly for the intended operation. Auto-Zero With the option board installed, the 631-X has a lim ited auto-zer o function.
• In some cases, the instrument cannot resum e sampling after regeneration. .L.L.L appears on the display when the ZERO button is pressed and the error message “manual bridge adjust needed” is added to the notes column of the JCS text file when the JCS is used.
Auto-Sample If a data logger is connected and operating in th e manual sampling m ode or a data logger is not connected the following automatic sampling ra tes may be selected with SW 100 dip switch s.
Jerome 631-X instruments shipped after early 1995, are capable of pr oviding 0-2 volts analog output. Instruments shipped before that tim e can be upgraded by a firmware update and adjustment. Instruments that are capable of 0-2 volt output can be upgraded to the 4-20 mA output with the addition of an option board upgrade.
• The 4-20 mA passive receive rs must not contain a voltage source to power the loop current. They do require the addition of a separate isolated power supply. Typically a supply that delivers 15 to 20 volts DC at 50 mA is sufficient. Wire these as in Figure 3.
Fresh Air Solenoid An external three-way solenoid ca n be used to provide fresh air or conditioned air during sensor regeneration. This may be necessary if the sa m ple stream lacks m olecular oxygen.
DC Power Op eration Instruments with the 631-X opti on board modification can be used with any +12 VDC source for continuous operation, if the AZI Power Inverter Kit, P/N Y031 0902 is installed along with the option board.
Ensure that the inverter’s power switch is in the “OFF” position. LEAVE the power switch in the “OFF” position at all times. The interface board w ill ac tivate the inverter when necess ary. If the inverter power switch is placed in the “ON” position, it will cause a continuous drain on the external 12-volt power system.
15. APPENDIX E: CALCULAT ION OF DYNACALIBRATOR H 2 S CONCENTRATION UNIT DEFINITIONS mole / 6.02 @ 10 23 molecules 9 10 g m (ngm) nanogram = PPM v / 10 -6 CALCULATIONS ume volume/vol 2 PPM rate) flow gas (total S) H of weight (molecular rate) permeation (tube C) o 25 @ ume (molar vol = ∗ v PPM 0.
16. WARRANTY Arizona Instrument LLC (seller) wa rrants to buyer that Jerome produc ts delivered pursuant to this agreement shall, at the time of delivery, and for a period of one (1) year.
Page 50 of 50 AZI Customer Service 800-528 -7411 or 602-470-1414 TRADEMARK AND COPYRIGHT PROTECTION Jerome Instrument, Arizona Instrument, AZI and the sty lized AZI are all regi stered trademarks of Arizona Instrument LLC. Copyright 1990-2003, Arizona Instrume nt LLC.
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