diff --git a/src/Agilent4uhv.xmi b/src/Agilent4uhv.xmi
index f4e323f729e8b68d6325cce6aea09aa81b4fea65..92bade34863267bfa56e20dfdd67aa3c2e7892ca 100644
--- a/src/Agilent4uhv.xmi
+++ b/src/Agilent4uhv.xmi
@@ -13,7 +13,7 @@
     <deviceProperties name="PollingSleep" description="Sleep between hardware requests made by internal thread">
       <type xsi:type="pogoDsl:IntType"/>
       <status abstract="false" inherited="false" concrete="true" concreteHere="true"/>
-      <DefaultPropValue>10000</DefaultPropValue>
+      <DefaultPropValue>0</DefaultPropValue>
     </deviceProperties>
     <commands name="State" description="This command gets the device state (stored in its device_state data member) and returns it to the caller." execMethod="dev_state" displayLevel="OPERATOR" polledPeriod="0">
       <argin description="none">
diff --git a/src/Agilent4uhvClass.cpp b/src/Agilent4uhvClass.cpp
index 4c280554b375c4e50ca433e4ed138fe071b500c4..2e13ece6f552da42d8a854297d6863a17be7d2f8 100644
--- a/src/Agilent4uhvClass.cpp
+++ b/src/Agilent4uhvClass.cpp
@@ -264,9 +264,9 @@ void Agilent4uhvClass::set_default_property()
 	//	Set Default device Properties
 	prop_name = "PollingSleep";
 	prop_desc = "Sleep between hardware requests made by internal thread";
-	prop_def  = "10000";
+	prop_def  = "0";
 	vect_data.clear();
-	vect_data.push_back("10000");
+	vect_data.push_back("0");
 	if (prop_def.length()>0)
 	{
 		Tango::DbDatum	data(prop_name);