public virtual int GetVacuumErrorState()
{
return(Pump.GetVacuumErrorState());
}
/// <summary>
/// Check for leaks.
/// </summary>
/// <remarks>
/// This is to check if the components in the closed gas delivery system work properly including
/// tubing, 3 solenoid valves, manifolds, check valves, vacuum sensor, flow sensor and pump.
/// The pump failure to operate could also cause this test to fail.
/// If a leakage is found, flow check will be meaningless.
/// </remarks>
/// <param name="details">The details to fill in.</param>
private void TestForLeak(DetailsBuilder details)
{
Pump.CloseAllValves( true );
Thread.Sleep( 500 ); // Give the valves a chance to finish closing
int pumpVoltage = 80; // initial voltage for leak test
bool leakCheck1Failed = true;
ushort vac1Raw;
double vac1Inches;
string vac1String;
const int maxPumpVoltage = 120;
const ushort rawInches40 = 360;
const int inches40 = 40;
const int pumpVoltageIncrement = 10;
//const ushort rawInches55 = 466;
//const int inches55 = 55;
Pump.Start( pumpVoltage ); // start pump with initial voltage
//Suresh 19-JUNE-2012 INS-3067
do
{
// After changing pump voltage, always wait 1 second before reading
// vacuum sensor to give the sensor time to adjust to the change.
Thread.Sleep( 1000 );
// Take vacuum reading (vac1)
vac1Raw = Pump.GetRawVacuum();
vac1Inches = Pump.ConvertRawVacuumToInches( vac1Raw );
vac1String = BuildCountAndUnitString( vac1Raw, vac1Inches, 1, "\"" );
Log.Debug( string.Format( "Vacuum: {0}, Pump voltage: {1}", vac1String, pumpVoltage ) );
// Check vacuum reading against target pressure. Pass after we reach or exceed target.
if ( vac1Raw >= rawInches40 )
{
// Pass if vac1 >= 40 inches of water
leakCheck1Failed = false;
Log.Debug( string.Format( "Leak Check 1 PASSED. (vacuum exeeds {0}\")", inches40 ) );
break;
}
if ( pumpVoltage + pumpVoltageIncrement >= maxPumpVoltage )// if the pump voltage crests above 120
{
Log.Debug( string.Format( "Leak Check 1 FAILED (pump voltage exeeds {0} but vacuum under {1}\")", maxPumpVoltage, inches40 ) );
break;
}
pumpVoltage += pumpVoltageIncrement;
Pump.SetNewPumpVoltage( (byte)pumpVoltage ); // set the new voltage to pump
} while ( true );
_gdpList.Add( new GeneralDiagnosticProperty( "DIAGNOSTIC_LEAK_CHECK_VAC1", vac1Raw.ToString() ) );
_gdpList.Add( new GeneralDiagnosticProperty( "DIAGNOSTIC_LEAK_CHECK_VAC1_INCHES", vac1Inches.ToString() ) );
_gdpList.Add( new GeneralDiagnosticProperty( "DIAGNOSTIC_LEAK_CHECK_VAC1_PASSED", (!leakCheck1Failed).ToString() ) );
_gdpList.Add( new GeneralDiagnosticProperty( "DIAGNOSTIC_LEAK_CHECK_VAC1_PUMP_VOLTAGE", pumpVoltage.ToString() ) );
ReportDiagnostic( details, DiagnosticResources.LEAK_CHECK_1, vac1String, leakCheck1Failed );
int vacuumError = Pump.GetVacuumErrorState(); // Check status of Vacuum Error by calling GetVacuumErrState()
_gdpList.Add( new GeneralDiagnosticProperty( "DIAGNOSTIC_LEAK_CHECK_VAC_ERROR", vacuumError.ToString() ) );
//Pass no matter what the state is [Vacuum Error Status]. The purpose is to keep the data structure of the report same as previous version.
ReportDiagnostic( details, DiagnosticResources.VACUUM_ERROR_STATUS, vacuumError.ToString(), false );
// Stop pump
Pump.Stop();
//Open Solenoid #1 for 1 second to relieve the pressure
Pump.OpenValve( 1, false );
Thread.Sleep( 1000 ); // 1 sec
Pump.CloseValve( 1 );
}