diff --git a/influxdb_api.py b/influxdb_api.py
index f5db75a..d7aae55 100644
--- a/influxdb_api.py
+++ b/influxdb_api.py
@@ -1492,12 +1492,17 @@ def query_SCADA_data_by_device_ID_and_timerange(query_ids_list: List[str], start
 
     SCADA_dict = {}
     for device_id in query_ids_list:
+
+        print('device_id', device_id)   
+        print('utc_start_time', utc_start_time.isoformat())
+        print('utc_end_time', utc_end_time.isoformat())
+
         flux_query = f'''
         from(bucket: "{bucket}")
+          |> range(start: {utc_start_time.isoformat()}, stop: {utc_end_time.isoformat()})
           |> filter(fn: (r) => r["device_ID"] = {device_id} and r["_field"] == "monitored_value")
           |> sort(columns: ["_time"])
         '''
-          #|> range(start: {utc_start_time.isoformat()}, stop: {utc_end_time.isoformat()})
 
         # 执行查询，返回一个 FluxTable 列表
         tables = query_api.query(flux_query)