diff --git a/templates/index.html b/templates/index.html
index d7119ad..5ff9abc 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -158,12 +158,9 @@
                     <option value="50">50</option>
                     <option value="100">100</option>
                     <option value="200">200</option>
-                    <option value="500" selected>500</option>
+                    <option value="500">500</option>
                     <option value="1000">1000</option>
-                    <option value="2000">2000</option>
-                    <option value="5000">5000</option>
-                    <option value="50000">50000</option>
-                    <option value="all">全部</option>
+                    <option value="all" selected>全部</option>
                 </select>
             </div>
             
@@ -641,12 +638,16 @@
                 dataTypes.forEach((type, typeIndex) => {
                     const colorIndex = (sensorIndex * dataTypes.length + typeIndex) % colors.length;
                     
+                    // 默认隐藏Z轴和温度数据
+                    const isHidden = type.key === 'z' || type.key === 'temperature';
+                    
                     datasets.push({
                         label: `探头${sensorID} - ${type.label}`,
                         data: sensorData.map(item => item[type.key]),
                         fill: false,
                         borderColor: colors[colorIndex],
-                        tension: 0.1
+                        tension: 0.1,
+                        hidden: isHidden
                     });
                 });
             });