Operating Instructions - Snap-on Equipment
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Operating Instructions - Snap-on Equipment

Operating Instructions - Snap-on Equipment Operating Instructions - Snap-on Equipment

snaponequipment.com
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13.07.2015 Views

Pocket PC MaintenanceSystem ID DiagnosticsThe System ID screen displays pertinent information about the gas analyzerhardware and software, including the software revision number. It also displaysgas values being returned from the gas bench for diagnosis and service testing.Figure 2G-27: System ID Diagnostics ScreenOther fields contain the following information:Gas ValuesMeasure PropaneBoxBarometric PressureZero CalibrationPumpReset CalibrationReset BenchLive values similar to the digital display data.Allows the HC value shown on this screen ONLY to bedisplayed as N-Hexane or Propane. N-Hexane is used tomeasure vehicle exhaust gas. Propane is used to measurecalibration gas.Barometric pressure inside the gas bench.Performs a zero calibration.Allows you to turn the sample pump on/off.Resets the FGA gas calibration values to the originalfactory values.Reboots the FGA internal software.✓ Use the items in the Diagnostics window only under the direction ofService. The Diagnostics window allows the service technician to helpyou diagnose and service problems that may be occurring within the gasanalyzer. It is not intended to function as a measurement tool.Comm Test DiagnosticsThe Comm Test checks the communication port on the pocket PC and the cablebeing used from the pocket PC to the analyzer. The test verifies that the port andcable are working correctly if you have repeated communication problemsbetween the pocket PC and the FGA. This specialized test requires the use of aLoop Back Tester (Figure 2G-29), which is provided with the analyzer or can bepurchased for older units (part number AL 419-0077).2G-22

Pocket PC MaintenanceTo perform the Comm Test,1. Select Setup, then Unit Diagnostic menu from the Maintenance menu,then select Comm Test. (Maintenance > Setup > Unit Diagnostics > CommTest).Figure 2G-28: Comm Test Diagnostics Screen2. Disconnect the serial connector from the FGA. Keep the cable connectedto the pocket PC.3. Insert the loop back tester into the communication/serial cable end disconnectedfrom the FGA.Figure 2G-29: Loop Back Tester4. Select Start Test.— The test runs automatically and reports either Good or Bad.2G-23

Pocket PC MaintenanceTo perform the Comm Test,1. Select Setup, then Unit Diagnostic menu from the Maintenance menu,then select Comm Test. (Maintenance > Setup > Unit Diagnostics > CommTest).Figure 2G-28: Comm Test Diagnostics Screen2. Disc<strong>on</strong>nect the serial c<strong>on</strong>nector from the FGA. Keep the cable c<strong>on</strong>nectedto the pocket PC.3. Insert the loop back tester into the communicati<strong>on</strong>/serial cable end disc<strong>on</strong>nectedfrom the FGA.Figure 2G-29: Loop Back Tester4. Select Start Test.— The test runs automatically and reports either Good or Bad.2G-23

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