Set pollingSleep default to 0

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">

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);