diff --git a/Config/Units.cs b/Config/Units.cs
index 87b2f59ca..dee04f5db 100644
--- a/Config/Units.cs
+++ b/Config/Units.cs
@@ -1,5 +1,5 @@
 ///
-/// Copyright (c) 2016-2018 Sensus Slovensko a.s.
+/// Copyright (c) 2016-2020 Sensus Slovensko a.s.
 ///
 using System;
 using System.Reflection;
@@ -27,14 +27,14 @@ namespace Config
         [Description("m3/h")]       m3ph,       /// * 1 m3/h = 1000 l/h
 
         [Description("g")]          g,          ///   0.001 kg
+        [Description("lb")]         lb,         ///   0.45359237 kg
         [Description("kg")]         kg,         /// * 1 kilogram
         [Description("t")]          t,          ///   1000 kg
-        [Description("lb")]         lb,         ///   0.45359237 kg
 
+        [Description("ms")]         ms,         ///   1 ms = 0.001 s
         [Description("s")]          s,          /// * 1 second
         [Description("min")]        min,        ///   1 min = 60 s
         [Description("hr")]         hour,       ///   1 hour = 60 min = 3600 s
-        [Description("ms")]         ms,         ///   1 ms = 0.001 s
 
 		[Description("°C")]         C,          /// * degree Celsius (°C)
         [Description("°F")]         F,          ///   degree Fahrenheit
@@ -42,11 +42,12 @@ namespace Config
 
         [Description("Pa")]         Pa,         ///   1 Pa = 0.01 hPa
         [Description("hPa")]        hPa,        ///   1 hPa = 100 Pa
-        [Description("kPa")]        kPa,        ///   1 kPa = 10 HPa
-        [Description("MPa")]        MPa,        ///   1 MPa = 10000 hPa
         [Description("mbar")]       mbar,       ///   1 mbar = 1 hPa = 100 Pa
-        [Description("bar")]        bar,        /// * 1 Bar = 1000 mbar = 0.1 MPa = 100000 Pa
+        [Description("kPa")]        kPa,        ///   1 kPa = 10 hPa = 10000 Pa
         [Description("inHg")]       inHg,       ///   1 inHg = 33.864 hPa
+        [Description("psi")]        psi,        ///   1 psi = 0.0689475729 bar
+        [Description("bar")]        bar,        /// * 1 Bar = 1000 mbar = 0.1 MPa = 100000 Pa
+        [Description("MPa")]        MPa,        ///   1 MPa = 10000 hPa
 
         [Description("R%")]         RPct,       /// * 1 R%
 
@@ -272,10 +273,11 @@ namespace Config
                 case Unit.hPa:
                 case Unit.mbar:
                 case Unit.kPa:
+                case Unit.inHg:
+                case Unit.psi:
                 case Unit.bar:
                 case Unit.MPa:
-                case Unit.inHg:
-					return Config.Quantity.Pressure;
+                    return Config.Quantity.Pressure;
 
                 case Unit.RPct:
                     return Config.Quantity.Humidity;
@@ -379,9 +381,10 @@ namespace Config
                 case Unit.hPa:      return 1000 * v;        /// 1 hPa = 100 Pa
                 case Unit.mbar:     return 1000 * v;        /// 1 mbar = 1 hPa = 100 Pa
                 case Unit.kPa:      return 100 * v;         /// 1 kPa = 10 HPa
+                case Unit.inHg:     return 29.53 * v;       /// 1 inHg =
+                case Unit.psi:      return 14.50377378 * v; /// 1 psi =
                 case Unit.bar:      return v;               /// 1 bar = 1000 mbar = 100000 Pa
                 case Unit.MPa:      return 0.1 * v;         /// 1 MPa = 10000 hPa
-                case Unit.inHg:     return 29.53 * v;       /// 1 inHg = 33.864 hPa
 
                 /// Error: internal representation in %
                 case Unit.Pct:      return v;               /// 1 %
@@ -452,9 +455,10 @@ namespace Config
                 case Unit.hPa:      return 0.001 * v;       /// 1 hPa = 100 Pa
                 case Unit.mbar:     return 0.001 * v;       /// 1 mbar = 1 hPa = 100 Pa
                 case Unit.kPa:      return 0.01 * v;        /// 1 kPa = 10 HPa
+                case Unit.inHg:     return 0.033864 * v;    /// 1 inHg = 33.864 hPa
+                case Unit.psi:      return 0.0689475729 * v;/// 1 psi = 0.0689475729 bar
                 case Unit.bar:      return v;               /// 1 bar = 1000 mbar = 100000 Pa
                 case Unit.MPa:      return 10 * v;          /// 1 MPa = 10000 hPa
-                case Unit.inHg:     return 0.033864 * v;    /// 1 inHg = 33.864 hPa
 
                 /// Error: internal representation in %
                 case Unit.Pct:      return v;               /// 1 %
diff --git a/TBF/BenchControl/Sequences/SequenceBase.cs b/TBF/BenchControl/Sequences/SequenceBase.cs
index 5516f6888..e472be57d 100644
--- a/TBF/BenchControl/Sequences/SequenceBase.cs
+++ b/TBF/BenchControl/Sequences/SequenceBase.cs
@@ -590,7 +590,7 @@ namespace TBF.BenchControl.Sequences
 						{
 							ISequenceCondition seqCondition = TbfComponents.FindComponent(fields[0]) as ISequenceCondition;
 							int condID;
-							if (int.TryParse(fields[1], out condID))
+							if ((seqCondition != null) && int.TryParse(fields[1], out condID))
 							{
 								conditionOperation = seqCondition.ConditionOp(condID);
 							}