diff --git a/TestBenchFramework/BenchControl/Sequences/SequenceBase.cs b/TestBenchFramework/BenchControl/Sequences/SequenceBase.cs
index c83e40ab0..0e74056ac 100644
--- a/TestBenchFramework/BenchControl/Sequences/SequenceBase.cs
+++ b/TestBenchFramework/BenchControl/Sequences/SequenceBase.cs
@@ -698,7 +698,8 @@ namespace TBF.BenchControl.Sequences
                 float refPulsesPerLtr = 1.0f / outPath.FlowMeter.LtrPerPulseCorrected(refFlow.Val); /// [pulse/ltr]
                 data.Volume = new FloatBox() { Name = "Volume", Format = "F1", Val = Formulas.VolumeFromPulses(data.RefPulses, refPulsesPerLtr) };
 
-                for (int i = 0; i < Program.WMsCount; i++)
+                int count = Math.Min(Program.WMsCount, data.TestResult.Meters.Count);
+                for (int i = 0; i < count; i++)
                 {
                     if (sensPath.RegisterReaders[i] != null)
                     {
diff --git a/TestBenchFramework/BenchControl/StateMachine.cs b/TestBenchFramework/BenchControl/StateMachine.cs
index 1fe39034c..0c51a5de0 100644
--- a/TestBenchFramework/BenchControl/StateMachine.cs
+++ b/TestBenchFramework/BenchControl/StateMachine.cs
@@ -408,7 +408,8 @@ namespace TBF.BenchControl
 			}
 			if (pmtrs != null)
 			{
-				for (int i = 0; i < Program.WMsCount; i++)
+                int count = Math.Min(Program.WMsCount, pmtrs.RegisterReaders.Length);
+				for (int i = 0; i < count; i++)
 				{
 					if ((pmtrs.RegisterReaders[i] != null) &&
 						(pmtrs.RegisterReaders[i].Cfg.DebugLevel == Entities.DebugMode.DetectedOff))
diff --git a/TestBenchFramework/BenchControl/TestMethods/CombinedMeters/CombinedMetersSeq.cs b/TestBenchFramework/BenchControl/TestMethods/CombinedMeters/CombinedMetersSeq.cs
index bd7ddf6c4..4af0e89ca 100644
--- a/TestBenchFramework/BenchControl/TestMethods/CombinedMeters/CombinedMetersSeq.cs
+++ b/TestBenchFramework/BenchControl/TestMethods/CombinedMeters/CombinedMetersSeq.cs
@@ -261,7 +261,7 @@ namespace TBF.BenchControl.TestMethods.CombinedMeters
 
 				string logstr = string.Format("E={0} f={1} q={2}", cBrd.EtPulses(0), cBrd.ReferenceFreq,
 											  cBrd.ReferenceFlow * outPath.FlowMeter.NominalFlow);
-				for (int i = 0; i < Program.WMsCount; i++)
+				for (int i = 0; i < (Program.WMsCount / 2) * 2; i++)
 				{
 					logstr += string.Format(" M{0}=({1},{2})", i + 1, WMRefPulses[i], WMPulses[i]);
 				}
diff --git a/TestBenchFramework/BenchControl/TestMethods/CombinedWithDetection/CombinedWithDetectionSeq.cs b/TestBenchFramework/BenchControl/TestMethods/CombinedWithDetection/CombinedWithDetectionSeq.cs
index fd48cb8b8..bb44f457e 100644
--- a/TestBenchFramework/BenchControl/TestMethods/CombinedWithDetection/CombinedWithDetectionSeq.cs
+++ b/TestBenchFramework/BenchControl/TestMethods/CombinedWithDetection/CombinedWithDetectionSeq.cs
@@ -459,7 +459,7 @@ namespace TBF.BenchControl.TestMethods.CombinedWithDetection
 
 				string logstr = string.Format("E={0} f={1} q={2}", cBrd.EtPulses(0), cBrd.ReferenceFreq,
 											  cBrd.ReferenceFlow * outPath.FlowMeter.NominalFlow);
-				for (int i = 0; i < Program.WMsCount; i++)
+				for (int i = 0; i < (Program.WMsCount / 2) * 2; i++)
 				{
 					logstr += string.Format(" M{0}=({1},{2})", i + 1, WMRefPulses[i], WMPulses[i]);
 				}
diff --git a/TestBenchFramework/Screens/MeasurementTabPageCtrl.cs b/TestBenchFramework/Screens/MeasurementTabPageCtrl.cs
index d2894ba40..d73e19efe 100644
--- a/TestBenchFramework/Screens/MeasurementTabPageCtrl.cs
+++ b/TestBenchFramework/Screens/MeasurementTabPageCtrl.cs
@@ -148,7 +148,8 @@ namespace TBF.Screens
 		{
 			if (data.TestResult != null)
 			{
-				for (int i = 0; i < Program.WMsCount; i++)
+                int count = Math.Min(Program.WMsCount, data.TestResult.Meters.Count);
+                for (int i = 0; i < count; i++)
 				{
                     measurementTbl1Col2.SetData(i, data.TestResult.Meters[i].VolumeMeter.ToString("F1"));
 					measurementTbl1Col3.SetData(i, data.TestResult.Meters[i].VolumeErrorPct.ToString("F1"));