diff --git a/numass-control/src/main/kotlin/inr/numass/control/DeviceDisplay.kt b/numass-control/src/main/kotlin/inr/numass/control/DeviceDisplay.kt
index e1bf192e..40cb95a6 100644
--- a/numass-control/src/main/kotlin/inr/numass/control/DeviceDisplay.kt
+++ b/numass-control/src/main/kotlin/inr/numass/control/DeviceDisplay.kt
@@ -143,11 +143,11 @@ abstract class DeviceDisplay<D : Device> : Component(), Connection, DeviceListen
         }
     }
 
-    override fun notifyDeviceStateChanged(device: Device, name: String, state: Value) {
+    override fun notifyStateChanged(device: Device, name: String, state: Value) {
         bindings[name]?.invalidate()
     }
 
-    override fun notifyDeviceStateChanged(device: Device, name: String, state: Meta) {
+    override fun notifyMetaStateChanged(device: Device, name: String, state: Meta) {
         metaBindings[name]?.invalidate()
     }
 
diff --git a/numass-control/vac/src/main/kotlin/inr/numass/control/readvac/ConsoleVac.kt b/numass-control/vac/src/main/kotlin/inr/numass/control/readvac/ConsoleVac.kt
index 41748c9e..a16182ac 100644
--- a/numass-control/vac/src/main/kotlin/inr/numass/control/readvac/ConsoleVac.kt
+++ b/numass-control/vac/src/main/kotlin/inr/numass/control/readvac/ConsoleVac.kt
@@ -12,6 +12,11 @@ import java.time.Instant
  * Created by darksnake on 06-Dec-16.
  */
 object ConsoleVac {
+    private fun Sensor.read():Double{
+        this.measure()
+
+    }
+
     @Throws(Exception::class)
     @JvmStatic
     fun main(args: Array<String>) {
@@ -33,7 +38,7 @@ object ConsoleVac {
         var className: String = cli.getOptionValue("c") ?: throw RuntimeException("Vacuumeter class not defined")
 
         if (!className.contains(".")) {
-            className = "inr.numass.readvac.devices." + className
+            className = "inr.numass.readvac.devices.$className"
         }
 
         val name = cli.getOptionValue("n", "sensor")
diff --git a/numass-control/vac/src/main/kotlin/inr/numass/control/readvac/VacCollectorDevice.kt b/numass-control/vac/src/main/kotlin/inr/numass/control/readvac/VacCollectorDevice.kt
index 6db8483d..09ad02e1 100644
--- a/numass-control/vac/src/main/kotlin/inr/numass/control/readvac/VacCollectorDevice.kt
+++ b/numass-control/vac/src/main/kotlin/inr/numass/control/readvac/VacCollectorDevice.kt
@@ -34,6 +34,7 @@ import inr.numass.control.StorageHelper
 import kotlinx.coroutines.experimental.launch
 import kotlinx.coroutines.experimental.time.delay
 import java.time.Duration
+import java.time.Instant
 import java.util.*
 import java.util.stream.Stream
 
@@ -53,11 +54,11 @@ class VacCollectorDevice(context: Context, meta: Meta, val sensors: Collection<S
             notifyResult(it)
         }
 
-        override fun notifyDeviceStateChanged(device: Device, name: String, state: Value) {
+        override fun notifyStateChanged(device: Device, name: String, state: Value) {
 
         }
 
-        override fun notifyDeviceStateChanged(device: Device, name: String, state: Meta) {
+        override fun notifyMetaStateChanged(device: Device, name: String, state: Meta) {
             if (name == MEASUREMENT_RESULT_STATE) {
                 collector.put(device.name, state.getValue("value"))
             }
@@ -110,8 +111,8 @@ class VacCollectorDevice(context: Context, meta: Meta, val sensors: Collection<S
     }
 
 
-    private fun notifyResult(values: Values) {
-        notifyResult(produceResult(values.toMeta()))
+    private fun notifyResult(values: Values, timestamp: Instant = Instant.now()) {
+        super.notifyResult(values,timestamp)
         helper.push(values)
     }
 
diff --git a/numass-control/vac/src/main/kotlin/inr/numass/control/readvac/VacDisplay.kt b/numass-control/vac/src/main/kotlin/inr/numass/control/readvac/VacDisplay.kt
index e18d0006..37557af0 100644
--- a/numass-control/vac/src/main/kotlin/inr/numass/control/readvac/VacDisplay.kt
+++ b/numass-control/vac/src/main/kotlin/inr/numass/control/readvac/VacDisplay.kt
@@ -8,9 +8,11 @@ package inr.numass.control.readvac
 import hep.dataforge.control.devices.Device
 import hep.dataforge.control.devices.PortSensor.Companion.CONNECTED_STATE
 import hep.dataforge.control.devices.Sensor
+import hep.dataforge.kodex.stringValue
 import hep.dataforge.kodex.timeValue
 import hep.dataforge.kodex.value
 import hep.dataforge.meta.Meta
+import hep.dataforge.values.Value
 import inr.numass.control.DeviceDisplay
 import inr.numass.control.switch
 import javafx.application.Platform
@@ -48,27 +50,13 @@ open class VacDisplay : DeviceDisplay<Sensor>() {
         return VacView();
     }
 
-    override fun evaluateDeviceException(device: Device, message: String, exception: Throwable) {
-        if (!message.isEmpty()) {
-            Platform.runLater {
-                status = "ERROR: $message"
-            }
-        }
-    }
-
-    override fun onMeasurementFailed(measurement: Measurement<*>, exception: Throwable) {
-        Platform.runLater {
-            value = "Err"
-        }
-    }
-
     fun message(message: String) {
         Platform.runLater {
             status = message
         }
     }
 
-    fun onResult(res: Any, time: Instant) {
+    private fun onResult(res: Any, time: Instant) {
         val result = Number::class.java.cast(res).toDouble()
         val resString = FORMAT.format(result)
         Platform.runLater {
@@ -78,21 +66,32 @@ open class VacDisplay : DeviceDisplay<Sensor>() {
         }
     }
 
-    override fun notifyDeviceStateChanged(device: Device, name: String, state: Meta) {
-        super.notifyDeviceStateChanged(device, name, state)
+    override fun notifyMetaStateChanged(device: Device, name: String, state: Meta) {
+        super.notifyMetaStateChanged(device, name, state)
 
         when (name) {
             Sensor.MEASUREMENT_RESULT_STATE -> {
-                val res by state.value(Sensor.RESULT_VALUE)
-                val time by state.timeValue(Sensor.RESULT_TIMESTAMP)
-                onResult(res, time)
+                if(state.getBoolean(Sensor.RESULT_SUCCESS)) {
+                    val res by state.value(Sensor.RESULT_VALUE)
+                    val time by state.timeValue(Sensor.RESULT_TIMESTAMP)
+                    onResult(res, time)
+                } else{
+                    Platform.runLater {
+                        value = "Err"
+                    }
+                }
             }
             Sensor.MEASUREMENT_ERROR_STATE -> {
-
+                val message by state.stringValue("message")
+                message(message)
             }
         }
     }
 
+    override fun notifyStateChanged(device: Device, name: String, state: Value) {
+        super.notifyStateChanged(device, name, state)
+    }
+
     fun getTitle(): String {
         return device.meta.getString("title", device.name);
     }