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The Measure of Technology

Operation Manual

Flue Gas Analyzer

Wohler A 450

Wohler A 450 L

-N

240

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-0

-25

Summary of Contents for A 450

Page 1: ...The Measure of Technology Operation Manual Flue Gas Analyzer Wohler A 450 Wohler A 450 L Best Nr 24094 2018 07 25...

Page 2: ...al Data 13 3 Component Explanation 14 3 1 Probes sensors and filters 16 3 2 Display 18 3 3 Gas sampling path Wohler A 450 19 4 Getting started 20 4 1 Activating the battery 20 4 2 Tightness test 20 4...

Page 3: ...Option Time format 40 7 6 5 Option Brightness 40 7 6 6 Option Buzzer 40 7 6 7 WLAN configuration 40 7 6 8 Option Quick save 43 7 6 9 Option Customer by 43 7 6 10 Option Device by 43 7 6 11 NOx calcula...

Page 4: ...ensate 50 11 3 Changing the filters 51 11 3 1 Cotton filter 51 11 3 2 Water stop filter 51 11 4 Sensor diagnosis and replacement 52 11 5 Replacing the battery 59 11 5 1 Replacing the battery 59 12 Six...

Page 5: ...ages caused by not following this manual 1 2 Notes WARNING Not following this warning can cause injury or death ATTENTION Not following this note can cause permanent damage to the device NOTE Useful i...

Page 6: ...and IR port Probe and hose as sembly with 1 5 m hose Ambient Temperature Probe Charger with micro USB cable Li Ion Battery 1 5 Transport and stocking ATTENTION Improper transport can harm the instrume...

Page 7: ...ject wire or pen Activate the battery by pushing the transport lock to the right to the I When the instrument is delivered the battery is always deactivated 1 6 Information on disposal Electronic equi...

Page 8: ...t ATTENTION The instrument is equipped with strong magnets to fix it during the measurement The magnetic field may harm heart pacemakers hard disks data mediums magnetic stripe cards controls etc Keep...

Page 9: ...ecifications 9 2 Specifications 2 1 Readings Oxygen O2 concentration in flue gas Display Volume referenced to dry flue gas Measurement principle electrochemical sensor Range 0 0 to 21 0 Accuracy 0 3 V...

Page 10: ...ted Range 0 to 10 000 Vol ppm resolution 1 Vol ppm Accuracy 20 ppm 400 ppm otherwise 5 of reading Carbon monoxide COV 10 000 ppm in flue gas only Wohler A 450 article 5181 Display Volume ppm reference...

Page 11: ...ifferential pressure PD Display Pascal Measurement principle Semi conductor diaphragm Range 0 00 to 110 00 hPa resolution 1 Pa Accuracy 2 Pa 40Pa otherwise 5 of reading Flue gas temperature TS Unit C...

Page 12: ...O2 in Vol Range 0 CO2max resolution 0 1 COc SO2c NOc NO2C air free corrected Default 0 oil and gas Dpt C Dew Point in the flue gas Medium soot level Soot number 0 1 Excess air coefficient Lambda e g 1...

Page 13: ...ight Charging time for a full charge Approx 3 hours Charging cycles of the batteries After 500 charging cycles at least 70 of the capacity are still available Storage Temperature 20 C to 50 C Operatio...

Page 14: ...Component Explanation 14 3 Component Explanation Fig 2 Front view of the analyzer On Off Gas probe connection Connection plate for temperature pressure USB condensate trap...

Page 15: ...onnections on the bottom of the unit 1 Lock Battery cf chapter 4 1 2 USB port for data transfer and charging 3 IR interface for thermal printer 4 Gas temperature 5 Ambient Air Temperature 6 Positive p...

Page 16: ...ible capillaries for the 4 PA test an adapter is needed If you frequently do measurements on cogenera tion units please use the external Wohler CHP Filter that has to be attached to the probegrip Wohl...

Page 17: ...Component Explanation 17 Fig 63 combustion air temperature probe Combustion air temperature probe Wohler A 450 185 mm Hoses for pressure measurement...

Page 18: ...ded into different segments The fuel is shown in the topline on the left The currently selected customer and measurement mode are shown on the right of the fuel Date and time system diagnostic status...

Page 19: ...he condensate trap where the gas is cooled by a spiral and the condensate is collected The second step is an exchangeable cotton filter Fine particles and rests of water will be removed from the sampl...

Page 20: ...itch is located on the connection plate at the bottom of the unit 4 2 Tightness test Fig 19 Ball pump Before the tightness test connect the gas probe Proceed as follows Squeeze the ball pump part 1 Pl...

Page 21: ...harger to the USB port at the bottom of the analyzer During the charging process a jack symbol will blink in the upper right part of the screen and the ON OFF key will blink red NOTE Recharging empty...

Page 22: ...Gas probe gas hose 1 pres sure hose 2 temperature plug 3 Attach the wide gas hose to the gas connec tion 1 Attach the small gas hose to the positive pres sure connection 2 Attach the temperature plug...

Page 23: ...press the ON OFF key for 3 seconds to turn the analyzer off 5 2 Calibration Fig 10 Sensor calibration Immediately after the device has been switched on the Wohler A 450 will start to calibrate the sen...

Page 24: ...w costumer or preselect a customer before the measurement After the measurement the measured data can be stored to the customer folder see chapter 6 3 Data Exchange Click on the Data Exchange icon to...

Page 25: ...t screen 5 3 1 Readings screen Al readings measured and computed values will be shown continuously in the readings segment NOTE The user can change the order of the values He can also select the unit...

Page 26: ...ndensing condi tions NO ppm mg m 3 Nitrogen oxide NOc ppm mg m 3 mg kWh mg MJ lbs mmbtu g GJ Nitrogen oxide corrected air free Dpt C F Dew Point GI Toxication index CO CO2 TA C F Ambient Temperature T...

Page 27: ...our finger over the screen Click on a fuel The fuel will be selected for the next measurement After turning off and on the analyzer the last selected fuel will be active again 5 3 3 Setting the fuel p...

Page 28: ...stop the measurement and hold the values Click Back to return to the numeric screen Copy readings Click on the Copy readings icon to copy the readings into the clipboard The Copy val readings icon wi...

Page 29: ...A click on the Clipboard readings icon enters the clipboard Stop Click Stop to stop the measurement and hold the values The sample pump continues or Press the Start Stop button of the probe han dle to...

Page 30: ...on Click on Pump on to turn on the gas pump Accept The Accept icon will only appear if the meas urement is stopped Click on the Accept icon to enter the Read ings menu In the Readings menu you can sa...

Page 31: ...h a checkmark Those tests that have already been saved will be marked by a lock Select a measurement to delete print or save it Customer Logo and Technician last item will always be marked by a checkm...

Page 32: ...Wohler A 450 on the Thermoprinter Wohler TD 100 NOTE Place the printer with the IR receiver toward the IR interface of the analyzer After printing the analyzer will enter the meas urement mode again...

Page 33: ...ll be the measurement date and the measurement time After the measurement click on Accept Click on the Save icon to save a customer record 7 Menu Menu Click on the main Menu icon to enter the main men...

Page 34: ...ondent information Press OK to confirm NOTE The value to be entered must be within the preset limits in the example on the left between 0 0 and 14 0 If the value is not between the preset limits it wi...

Page 35: ...test Option CO 0 click to zero out the CO sen sor offset reading To evaluate the test click on Not OK or OK The analyzer will enter the data menu where you can save and or print the information NOTE...

Page 36: ...click Cancel to exit the Manifold Pressure test and return to the main menu Option New click New to clear the graph and all captured readings and start a new Manifold Pressure test To evaluate the te...

Page 37: ...e icon in the main menu screen NOTE Make sure you connect the Ambient Air Plug see Fig 5 The options in the Manifold Pressure mode screen are Option Cancel click Cancel to exit the Temperature mode an...

Page 38: ...for adjusting the burner will be shown The current reading is marked with a red box and any former reading is tracked with a green line The Green Zone indicates the best combustion performance excess...

Page 39: ...enu click on the setup icon Fig 26 Setup menu the scroll bar shows that there are more parameters available The analyzer will enter the setup menu 7 of the 13 parameters are displayed Sweep the left c...

Page 40: ...ormat Possible options are 24 h 12 h 7 6 5 Option Brightness Change the brightness of the display in 9 steps Click on the upwards arrow to set the back light brighter click on the downwards arrow to s...

Page 41: ...de vice tablet or smartphone to the analyzer s network Note After you have seleced Direct connection and confirmed with OK in the Setup Menu in the upper display WLAN ready will appear alter nating wi...

Page 42: ...in the house that you want to use Click on Network name After a few seconds a list of all available net works will appear in the display Click on the network that you want to use If the network is pr...

Page 43: ...tion is activated the analyzer will automatically save the meas urement records under a new customer The customer name will be the measure ment date and the measurement time see Chapter 6 4 Default Qu...

Page 44: ...the table of chapter 5 3 1 The icons in the footer have the following function Cancel Escape without saving the modifications Restore defaults Reset to factory settings Remove signal Remove a value f...

Page 45: ...ireplace has its own number 8 1 Set up a new customer There are two possibilities 1 Go to the main menu and click on the Customers icon or 2 Click on the customer icon during the search for the hotspo...

Page 46: ...customer and a fireplace The analyzer will enter the customer menu The customer menu shows a list of all customers Fig 33 Selecting a customer in the customer menu Click on a customer The analyzer wil...

Page 47: ...name At the bottom of the display the first result will be shown Click on the arrow key to see the other results and select the customer After selecting the customer search the device in the same way...

Page 48: ...ata exchange with the PC With the Wohler A 450 Sorftware it is possible to exchange the data with the PC via USB or WLAN NOTE The data transfer and the functions of the Software are explained in the M...

Page 49: ...rn analyzer for check and calibration to a Wohler certi fied service station Fig 35 Condensation trap seal ring on the filter cover 1 and on the water stop filter 2 If necessary Grease the seal rings...

Page 50: ...of the analyzer Fig 38 Condensate trap 1 Probe connection of the condensate trap 2 Condensate panel inside the condensate trap 3 Condensate bin 4 Seal ring 5 Filter cover 6 Cotton filter 7 Seal ring...

Page 51: ...r Pull the cotton filter out of the filter cover After every combustion test control the cotton filter and replace it if wet or dirty 11 3 2 Water stop filter The water stop filter blocks water from e...

Page 52: ...intenance This explains why the average life of measuring sensors will be determined by specific experience O2 sensor 4 years CO sensor 4 years The sensors can be changed in the factory or by an autho...

Page 53: ...nsor The sensor status is continuously displayed in the right top of the screen The list below shows the possible diagnosis feedback Status icon Yellow sign icon indicates a prob lem A note will appea...

Page 54: ...n in the diagnosis menu will update automatically Replace the sensor as follows Fig 43 Bottom of the device Open the cover by loosening the cross head screws Power off the analyzer Loosen the 2 screws...

Page 55: ...ort removed from the analyzer Cautiously remove the transparent hose of the gas path from the holders Cautiously remove the sensor support from the analyzer NOTE The hose of the gas path can stay conn...

Page 56: ...gas pump Changing the CO sensor Replace the sensor by a new one Plug the CO sensor to the board NOTE After installing a new CO sensor you must enter the calibration values in the calibration menu see...

Page 57: ...pport placed on the sensors and hose of the gas path cor rectly installed in the holders Place the sensor support on the sensors again Install the hose of the gas path correctly in the holders CAUTION...

Page 58: ...e of the CO sensor you must enter the calibration values in the calibration menu Switch on the analyzer In the main menu click on the calibration icon Enter the Code 4798 Click on Calibrate CO sensor...

Page 59: ...end the analyzer to your dealer or change the battery as follows Switch off the analyzer Open the analyzer as described before in the chapter sensor re placement Fig 50 Battery in the black adapter se...

Page 60: ...CO measurement towards NO NO measurement Option The flue gas temperature TA has to be checked with a reference standard at two measuring points one point in the lower part and one point in the upper p...

Page 61: ...le batteries and special sensors are not covered by this warranty If the analyzer is equipped with a NO sensor the warranty period of the NO sensor will be 12 month This warranty does not cover the fr...

Page 62: ...device must accept any interference including interference that may cause undesired operation of the device Note This equipment has been tested and found to comply with the limits for a Class A digita...

Page 63: ...t n 56126 Plastic case Case Midi Art n 6594 Case Maxi Art n 4704 Printer W hler TD 100 fast thermal printer Art n 4160 Paper for thermal printer Art n 4145 Extras Differential pressure adapter Art n 2...

Page 64: ...Drive Danvers MA 01923 Tel 1 978 750 9876 Fax 1 978 750 9799 www wohlerusa com Italy W hler Italia srl Via Coraine 21 37010 Costermano VR Tel 39 045 6200080 Fax 39 045 6201508 info woehler it www woe...

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Wohler A 450, Operation Manual

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