Waiting that device comes up

src/Agilent4uhv.cpp

@@ -249,6 +249,12 @@ void Agilent4uhv::init_device()
 		attr_Model_read[0] = new char[MAX_DEVSTRING_LENGTH];
 		attr_SerialNumber_read[0] = new char[MAX_DEVSTRING_LENGTH];
 
+		// Waiting the device
+		int retries = 0;
+		while(get_state2() == 9 && retries++ < 5) {
+			sleep(1);
+		}
+
 		/* Che if the mBar is pressure unit used */
 		int pressure_unit;
 		read_window(600, pressure_unit);