fix bug 649 leakcheck-BP<BPlimit时，alarm报警的bplimit取值错误

Furnace/FurnaceRT/Equipments/PMs/PMLeakCheck.cs

@@ -107,7 +107,7 @@ namespace FurnaceRT.Equipments.PMs
 
             if (_basePressure < _leakCheckTableParameter.BasePressureLimit && _leakCheckTableParameter.BasePressureLimit > 0)
             {
-                LeakCheckAlarm.Set($"Leak check alarm: BP={_basePressure} < BPLIMIT={_leakCheckTableParameter.HighLimit}");
+                LeakCheckAlarm.Set($"Leak check alarm: BP={_basePressure} < BPLIMIT={_leakCheckTableParameter.BasePressureLimit}");
                 ProcessLeakCheckErrorCommand(_leakCheckTableParameter.BasePressureLimitCommand);
                 return;
             }