diff --git a/BecquerelMonitor/BecquerelMonitor.csproj b/BecquerelMonitor/BecquerelMonitor.csproj
index 1149075..776b24e 100644
--- a/BecquerelMonitor/BecquerelMonitor.csproj
+++ b/BecquerelMonitor/BecquerelMonitor.csproj
@@ -35,8 +35,8 @@
     <MinimumRequiredVersion>2022.07.08.7</MinimumRequiredVersion>
     <CreateWebPageOnPublish>true</CreateWebPageOnPublish>
     <WebPage>index.html</WebPage>
-    <ApplicationRevision>3</ApplicationRevision>
-    <ApplicationVersion>2024.09.03.3</ApplicationVersion>
+    <ApplicationRevision>4</ApplicationRevision>
+    <ApplicationVersion>2024.09.03.4</ApplicationVersion>
     <UseApplicationTrust>true</UseApplicationTrust>
     <PublishWizardCompleted>true</PublishWizardCompleted>
     <BootstrapperEnabled>true</BootstrapperEnabled>
diff --git a/BecquerelMonitor/DeviceConfigForm.cs b/BecquerelMonitor/DeviceConfigForm.cs
index e4bbc99..3bf2206 100644
--- a/BecquerelMonitor/DeviceConfigForm.cs
+++ b/BecquerelMonitor/DeviceConfigForm.cs
@@ -7,6 +7,7 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.Diagnostics;
 using System.Drawing;
 using System.IO;
 using System.Linq;
@@ -896,8 +897,9 @@ void setNewCalibration(TextBox t, int order)
                 t.ForeColor = Color.Black;
                 this.SetActiveDeviceConfigDirty();
             }
-            catch
+            catch (Exception ex)
             {
+                Trace.WriteLine(ex.ToString());
                 t.ForeColor = Color.Red;
             }
         }
@@ -1947,7 +1949,7 @@ double fromStringtoDouble(string str)
                 System.Globalization.CultureInfo.InvariantCulture,
                 out result))
             {
-                if (result > -100.0 && result < 100.0)
+                if (result > -200.0 && result < 200.0)
                 {
                     return result;
                 }
diff --git a/BecquerelMonitor/Properties/AssemblyInfo.cs b/BecquerelMonitor/Properties/AssemblyInfo.cs
index 344d0e5..80d7892 100644
--- a/BecquerelMonitor/Properties/AssemblyInfo.cs
+++ b/BecquerelMonitor/Properties/AssemblyInfo.cs
@@ -4,13 +4,13 @@
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
-[assembly: AssemblyVersion("2024.09.03.3")]
+[assembly: AssemblyVersion("2024.09.03.4")]
 [assembly: AssemblyProduct("BecquerelMonitor")]
 [assembly: AssemblyCopyright("free")]
 [assembly: AssemblyTrademark("none")]
 [assembly: AssemblyConfiguration("")]
 [assembly: Guid("40110b38-4882-47c1-ad94-a71e58dcb5f8")]
-[assembly: AssemblyFileVersion("2024.09.03.3")]
+[assembly: AssemblyFileVersion("2024.09.03.4")]
 [assembly: AssemblyDescription("")]
 [assembly: AssemblyCompany("free")]
 [assembly: CompilationRelaxations(8)]