From 1d087c00e88fa065fb6a526edbfeaf0b8e0809d9 Mon Sep 17 00:00:00 2001
From: "GukSang.Jin" <guksang_chen@163.com>
Date: Wed, 27 May 2026 11:50:35 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B02026?=
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---
 .../ViewModels/CValueCalibrationViewModel.cs     | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/ConeCalorimeter/ViewModels/CValueCalibrationViewModel.cs b/ConeCalorimeter/ViewModels/CValueCalibrationViewModel.cs
index 4ce328d..1b16d35 100644
--- a/ConeCalorimeter/ViewModels/CValueCalibrationViewModel.cs
+++ b/ConeCalorimeter/ViewModels/CValueCalibrationViewModel.cs
@@ -26,6 +26,8 @@ public sealed class CValueCalibrationViewModel : PageViewModel
     private const double CValueMaximum = 1000;
     private const double FractionalOxygenMaximum = 0.3;
     private const double PlausibleOxygenMinimum = 1;
+    private const double DisplayZeroTolerance = 0.00005;
+    private const string FourDecimalDisplayFormat = "0.0000";
     private const ushort CirculatingWaterCoil = 49;
     private const ushort SamplingPumpCoil = 50;
     private const ushort IgniterCoil = 53;
@@ -164,7 +166,7 @@ public sealed class CValueCalibrationViewModel : PageViewModel
         private set => SetProperty(ref _pressureDifferenceText, value);
     }
 
-    public string HeatInputText { get; } = "5.0";
+    public string HeatInputText { get; } = "5.0000";
 
     public string CalibrationOxygenText
     {
@@ -206,14 +208,14 @@ public sealed class CValueCalibrationViewModel : PageViewModel
         BaselineOxygenText = ReadOxygenPercentText(
             "BaselineOxygen",
             BaselineOxygenRegister,
-            "0.00");
+            FourDecimalDisplayFormat);
         var temperature = ReadRangedFloatDisplay(
             "Temperature",
             "Te",
             TemperatureRegister,
             TemperatureMinimum,
             TemperatureMaximum,
-            "0.00");
+            FourDecimalDisplayFormat);
         TemperatureText = temperature.Text;
         RememberCalibrationFloatByteOrder(temperature);
 
@@ -223,14 +225,14 @@ public sealed class CValueCalibrationViewModel : PageViewModel
             PressureDifferenceRegister,
             PressureDifferenceMinimum,
             PressureDifferenceMaximum,
-            "0.00");
+            FourDecimalDisplayFormat);
         PressureDifferenceText = pressureDifference.Text;
 
         var calibrationOxygen = ReadOxygenPercentDisplay(
             "CalibrationOxygen",
             "XO2",
             CalibrationOxygenRegister,
-            "0.00");
+            FourDecimalDisplayFormat);
 
         CalibrationOxygenText = calibrationOxygen.Text;
         RememberCalibrationFloatByteOrder(calibrationOxygen);
@@ -241,7 +243,7 @@ public sealed class CValueCalibrationViewModel : PageViewModel
             CValueRegister,
             CValueMinimum,
             CValueMaximum,
-            "0.00");
+            FourDecimalDisplayFormat);
         CValueText = cValue.Text;
 
         RefreshHoldActionStates();
@@ -518,7 +520,7 @@ public sealed class CValueCalibrationViewModel : PageViewModel
 
     private static double NormalizeDisplayValue(double value)
     {
-        return Math.Abs(value) < 0.005 ? 0 : value;
+        return Math.Abs(value) < DisplayZeroTolerance ? 0 : value;
     }
 
     private CValueCalibrationActionViewModel CreateAction(