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- Operation Manual
Ecom j2kn pro Operation Manual
Summary of j2kn pro
Page 1
Ecom america ltd, 1628 oakbrook drive, gainesville, ga 30507 toll free (877) 326-6411 phone (770) 532-3280 fax (770) 532-3620 w w w . E c o m u s a . C o m operations manual version 3.3.3.
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Page 3
Page 3 table of contents page(s) j2kn p ro d esign and h ow it w orks 1. Important things to remember 4 2. Instrument design 2.1. J2kn pro base unit 5 2.2. Remote display unit 6 2.3. Accessories 7 2.4. Consumables 8 3. Peltier cooler 9 4. Gas path diagram 10 5. Power supply 11 6. Radio communication...
Page 4
Page 4 1. Important things to remember the j2kn pro meets the requirements of epa ctm-030 and ctm-034 and astm d-6522 test- ing protocols for portable emission analyzers. In order to receive accurate measurements, please allow reading to stabilize for at least 2 minutes. The j2kn pro is not suitable...
Page 5: 2. Instrument Design
Page 5 2. Instrument design 2.1 j2kn pro base unit ambient air temperature sensor thermocouple connection main gas connection draft/pressure connection draft/pressure connection water trap drain hose connection on-board printer filter for ir bench (if applicable) remote display unit (see next page) ...
Page 6: 2.2 Remote Display Unit
Page 6 2.2 remote display unit escape note: all keypad buttons are used for input of numbers 0-9 and decimal point ok (press to confirm) up/down/right/left and scroll turn on/off data logging press to add custom text to printout (to print real-time results, simply press f2) on/off display backlight ...
Page 7: 2.3 Accessories
Page 7 2.3 accessories advanced das compliance testing software w/ bluetooth part no. Prt90205 calibration gas kit part no. Calgaskit1 under case part no. Rbr69825 part no. Rbr69829 (pictured on page 5) 15ft heated sample line part no. Prt79525-15 t-gas dummy plug part no. Connect70280 t-air sensor ...
Page 8: 2.4 Consumables
Page 8 2.4 consumables part part # description particulate filter (10/pk) filter 75316 10/pk - particulate filter located on top of water trap assembly in-line smoke filter (1 each) rbr 71185 1 each - standard 3/4" in-line filter in clear plastic casing. Soot test paper (100/pk) soot 71283 100/pk - ...
Page 9: 3. Peltier Cooler
Page 9 3. Peltier cooler j2kn pro must be plugged in for the peltier cooler to operate. Exhaust gas with a temperature above dew point is intro- duced into a spiralling gas path with a coated metal surface of good thermal conductivity. The hot gas radiates its heat to this metal coating, which is th...
Page 10: 4. Gas Path Diagram
Page 10 4. Gas path diagram response time after inserting the probe into the sample gas, there is a short delay before correct measurement values are dis- played. This is necessary for the gas to pass through the sampling system and build up a stable electrochemical reac- tion at the sensors. This i...
Page 11: 5. Power Supply
Page 11 5. Power supply the j2kn pro base unit has an internal power supply, and it is recommended to always run the unit on ac power. For testing locations where an ac plug-in is not available, the instrument can be operated from 6-8 hours on battery power when fully charged. Connecting the j2kn-pr...
Page 12: 6. Radio Communication
Page 12 6. Radio communication the j2kn pro base unit communi- cates wirelessly to the remote display unit via radio transmisision. To unlock the remote control unit, press on the tab to unlock and release from the cradle on the base unit. The information exchange between the remote control and base...
Page 13: 7. J2Kn Pro Start-Up
Page 13 7. J2kn pro start-up make sure the probe is in fresh air when you turn on the j2kn pro. 1. Switch on the j2kn base unit and the remote control unit. The main menu is displayed with 8 sub-menus: - gas analysis view gas readings & calculations - averaging perform averaging tests - draft/pressu...
Page 14: 8. Emissions Measurement
Page 14 8. Emissions measurement 8.1 gas analysis calibrate the sensors before each emission test for best results. After the 1-minute auto-zeroing phase, the instrument switches to gas analysis mode. The measurement values can be viewed on 3 display pages: a zoomed in 4-line display and 2 full 9-li...
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Page 15 8.1 gas analysis (continued) core stream search to obtain the most accurate gas sample, the end of the probe should be positioned in the center of the exhaust stream or the “core stream” where the thermocouple is fully surrounded with the highest gas temperature. A + or – symbol displays in ...
Page 16: 8.2 Printing
Page 16 8.2 printing quick print the easiest and quickest way to print is to press for quick print, which immediately prints the measurement values currently on the screen. This also saves a snapshot to memory. Print in timed intervals or print an average over time to print in timed intervals (for e...
Page 17: 8.3 Soot Test
Page 17 8.3 soot test the soot test is a measure of soot or smoke density in the exhaust sample. The soot test must be performed with the heated probe turned on in order to prevent the filter paper from becoming wet due to condensation. To turn probe heating on, go to adjustments -> internal -> prob...
Page 18
Page 18 9. Data logging onto memory card (2gb max) initial set-up 1. Insert memory card (32mb to 2gb) into the top-right of the handheld display 2. Go to automatic meas. -> save to mm card . This is the time interval that each data snapshot is recorded to the memory card (min. 1sec, max 255sec). Inp...
Page 19: 10. Averaging Tests
Page 19 10. Averaging tests the averaging function allows you to take a sample of emissions data and compute an average over time. 1. Go to averaging -> select meas. Time 2. Input total measuring time in minutes or seconds (for seconds, press decimal 1st) 3. Select scanning and input interval time i...
Page 20: 11. Draft/pressure
Page 20 11. Draft/pressure a trend indication for the draft conditions in the exhaust channel is displayed in the gas analysis screen. Note that the pressure sensor tends to drift because of its sensitivity, and it is necessary to calibrate the sensor immediately before sam- pling to get an accurate...
Page 21
Page 21 12. Adjustments (continued) *undiluted = concentration value corrected to reference o2% mass emissions the j2kn-pro calculates mass emissions in units of lbs/hour, tons/year, or gr/bhp. First, under adjustments , set the unit to ppm and choose the correct fuel type . Then select mass emissio...
Page 22: 12.1 Internal
Page 22 12.1 internal (go to adjustments > internal) print contrast choose print contrast from 0-9 reload function choose remote unit battery recharging settings (see 5. Power supply ) key beep press f1/f4 to turn key beep on/off graphic menu press f1/f4 to turn graphic menu on/off probe heating pre...
Page 23: 12.1 Internal (Continued)
Page 23 12.1 internal (continued) usb for dasnt 5: set baud rate to 1200 set protocol to enhanced for advanced das: set baud rate to 38400 and set protocol to enhanced bluetooth for dasnt 5: set baud rate to 9600 set protocol to enhanced for advanced das: set baud rate to 9600 and set protocol to en...
Page 24: 13. Control
Page 24 13. Control the electrochemical sensors change their output values over time based on frequency of use. The j2kn-pro is pro- grammed to monitor the sensors and correct drifts. If the drifts and the correlated measurement errors increase, an er- ror message is displayed and it is time to chan...
Page 25: 14. Maintenance Tips
Page 25 14. Maintenance tips only use sensors, filters, and filter media provided by ecom. Do not use desiccant! 14.1 filters particulate filter (water trap filter) unscrew the cover of the water trap and check the particu- late filter for greyness. Change it once the filter has a dark- ness of 4-5 ...
Page 26: 14.1 Filters (Continued)
Page 26 14.1 filters (continued) ventilation filter the ventilation filter should be changed if the filter has a darkness of 2-3 on the soot chart scale. Use a screwdriver to pry open the filter holder from the slots on each side. Change the filter cartridge and refasten the filter holder. Ventilati...
Page 27: 14.3 Sensors (Continued)
Page 27 14.3 sensors (continued) the co sensor is protected from exposure to high con- centrations by the automatic co bypass pump. If the limit value of 4000 ppm is exceeded, a second pump switches on and purges the sensor with fresh air. 14.4 printer paper to change the printer paper, please follo...
Page 28
Page 28 15. How to change sensors 15.1 how to change o2 sensor step 1: use a t-10 torx wrench to remove screws from o2/co cover plate step 2: the o2 sensor is attached to 2 wires, located below the co sensor step 3: disconnect the lead wires and unscrew counter clockwise until loose, then pull direc...
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Page 29 15.2 how to change a5f co sensor step 1: use t-10 torx wrench to remove screws from o2/co cover plate step 2: the a5f co sensor is in gray housing attached to a ribbon cable step 3: disconnect ribbon cable from co sensor step 4: remove co sensor using coin or fingers turn 45 degrees counter ...
Page 30
Page 30 15.2 how to change a5f co sensor (continued) step 5: pop open the gray cap using a small screwdriver use the side of the hous- ing as a leverage point step 6: after the cap is removed, slide the sensor out of the housing as shown here step 7: remove the board from the sensor using a small sc...
Page 31
Page 31 15.3 how to change mem co sensor step 1: use t-10 torx wrench to remove screws from o2/co cover plate step 2: the mem co sensor is shown here step 3: disconnect ribbon cable from co sensor step 4: remove 3 screws shown here using a phillips head screwdriver pull sensor directly out step 5: i...
Page 32: Sensors
Page 32 15.4 how to change no, no2, so2, and high co sensors step 1: disconnect power cord remove these screws step 2: set j2kn on its back side to expose the 3 screws that attach base unit to carrying case step 3: return j2kn to upright position and disconnect drain hose firmly grip base unit and p...
Page 33: Sensors (Continued)
Page 33 15.4 how to change no, no2, so2, and high co sensors (continued) step 5: use t-10 torx wrench to remove screws shown here remove o2/co cover plate remove o2 sensor by disconnecting lead wires and unscrewing counter clockwise if necessary, break wire tie mounted in upper left corner of base u...
Page 34: Sensors (Continued)
Page 34 15.4 how to change no, no2, so2, and high co sensors (continued) step 9: place board onto new sensor step 10: insert new sensor, turn 45 degrees clockwise to lock into place, and replace ribbon cable step 11: repeat steps 7-10 for each sensor you would like to change step 12: when done, repl...
Page 35
Page 35 16. How to calibrate sensors for best results, the calibration gas concentration should be as close to the expected levels of emissions as possible. Because each sensor is linear through a nominal range, one calibration gas concentration can be used for a reasonably wide range of emission le...
Page 36
Page 36 16. How to calibrate sensors (continued) put analyzer in calibration mode: 1. Select control on main menu. 2. Swipe calibration magnet over the silver cal magnet sticker, located at bottom left of keypad. 3. The analyzer is now in calibration mode. Calibrate your analyzer: 1. Connect calibra...
Page 37
Page 37 17. Flow velocity measurement (option) stack flow or exhaust gas flow can be measured by the j2kn-pro using a special flow probe. First, the pitot factor must be entered in the adjustments menu to get the correct flow rate calculation. Input 0.93 for the pitot factor if you are using a stand...
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Page 38 18. Frequently asked questions where do i find important in- strument information? How long is the life span of the sensors? Which sensors can i exchange? The instrument shows the error message “o2 sensor 0 mv“ the instrument shows the error message “t-gas“ or “t-air“ the instrument shows wr...
Page 39
Page 39 18. Frequently asked questions (continued) if you have any further questions, do not hesitate to contact the ecom america service department at 770-532-3280 j2kn-pro cannot be switched on j2kn-pro does not print pump flow seems too low the water is not pumping out of the water trap bowl when...
Page 40: 19. Technical Data
Page 40 19. Technical data parameter range principle o2 0 ... 21.0 vol-% electrochemistry co 0 ... 4000 ppm electrochemistry co% (option) 4000 ... 63000 ppm electrochemistry no 0 ... 5000 ppm electrochemistry no 2 0 ... 1000 ppm electrochemistry so 2 (option) 0 ... 5000 ppm electrochemistry c x h y ...
Page 41
Page 41 20. Description of data fields using j2kn-pro data logging onto memory card file format: j2kdl-xx.Csv (comma-separated-values) column description remark / example a date dd.Mm.Yyyy b time hh:mm:ss c o2 in vol.% 0.0 – 21.0 d co in ppm 0 – 4000 e no in ppm 0 – 4000 f no2 in ppm 0 – 500 g so2 i...
Page 42: 21. Calculations
Page 42 21. Calculations note: a1, b, co 2 max & eta max are constants based on fuel type. Excess air (lambda) range=1-infinity excess air = 21 21 – o 2 measured combustion efficiency (eta) range=0-99.9% efficiency = eta max - ( a1 + b) x (t gas – t air ) co2 carbon dioxide (co2) range=0-co2max co 2...
Page 43: 22. Software Help
Page 43 22. Software help if you need help with installation or operation of your advanced das, boiler test software, or vets software, please consult the operations manual for your software prod- uct. If you still need assistance, please contact ecom. Tip: if you are having trouble communicating fr...
Page 44: Ecom A
Page 44 r ugged . R eliable . A ccurate . Ecom a merica l td 1628 o akbrook d rive g ainesville , ga 30507 t oll free (877) 326-6411 p hone (770) 532-3280 f ax (770) 532-3620 ecom.Info@ecomusa.Com w w w . E c o m u s a . C o m.