Drahtloser Relativdruckmessumformer EJX430B

Der leistungsstarke drahtlose Relativdruckmessumformer EJX430B verfügt über einen einkristallinen Siliziumsensor und eignet sich für die Messung von Flüssigkeits-, Gas- oder Dampfströmen ebenso wie zur Bestimmung von Flüssigkeitsständen, Dichte und Druck. Messumformer dieser Art übermitteln nicht nur Prozessvariablen, sondern auch die Einstellparameter mithilfe von Funksignalen. Die Messumformer werden über interne Akkus gespeist. Da somit keine feste Verkabelung erforderlich ist, können Einsparungen im Hinblick auf die Installationskosten erzielt werden. Die Kommunikation entspricht den Spezifikationen des ISA100.11a-Protokolls.

  • Langlebige Akkuauslegung
    Zwei Lithium-Thionylchlorid-Hochleistungsakkus mit extrem geringem Stromverbrauch sorgen über Jahre hinweg für einen zuverlässigen Drahtlosbetrieb.
  • Sichere Anbindung an das Drahtlosnetzwerk
    Eine Infrarotkommunikation zwischen den Geräten ermöglicht eine Konfiguration des Drahtlosnetzwerks sowie diverse Parametereinstellungen.
  • Schnelles Aktualisierungsintervall
    Gemessene Prozesswerte können in einem zwischen 0,5 Sekunden und 60 Minuten einstellbaren Aktualisierungsintervall drahtlos übermittelt werden.
Applikations-beschreibungen
Übersicht:
  • Temperature monitoring at a tank farm
  • Temperature and pressure monitoring in tank jungles, three vertical monitoring points.
Industrien:
Applikations-beschreibungen
Übersicht:

The client wanted to monitor the injection gas pressure of gas lift remotely in central control room. Antitheft measures are needed to install new equipments and cables.

Industrien:
Applikations-beschreibungen
Übersicht:

ISA100 wireless pressure transmitters

Industrien:
Applikations-beschreibungen
Übersicht:

ISA100 wireless temperature and pressure transmitters with orifice plates allow:

  • No cabling installations or maintenance.
  • Small amount of hardware and simple equipment implementation means minimizing potential vandalism.
Applikations-beschreibungen
Übersicht:

ISA100 Wireless Monitoring  

  • Gateway x1, Temperature Transmitter (YTA) x3, Pressure Transmitter (EJX) x1, Repeater x1

Gateway is installed at control room and 3m height extended antenna is set.

Übersicht:
  • Temperature Transmitter (YTA) and Pressure Transmitter (EJX) are installed at each monitoring point.
  • Repeater is installed on high position.
Applikations-beschreibungen
Übersicht:

ISA100 Field Wireless transmitters

Applikations-beschreibungen
Übersicht:
  • Oil level measurement of diesel tanks that feed fuel to their diesel generator's which are at three locations and 400 meters apart from each other.
  • Also to measure level , pressure and flow to and from their main storage yard.
Industrien:
Übersicht:

ISA100 Wireless Temperature and Pressure Transmitters

  • Gateway x1, Temperature Transmitter (YTA) x1, Pressure Transmitter (EJX) x1

High quality wireless communication confirmed

  • Packet Error Rate (PER) is 0 to 2.5%/ 5 days
Übersicht:

ISA100 wireless temperature and pressure transmitters.

Industrien:
Übersicht:
  • Daily manual reading of pressure and temperature gauges with report by phone.
  • The customer wants to change measurement from off-line to on-line.
  • Cabling for wired transmitters in huge plants (up to 300 meters long) is expensive.
Übersicht:
  • Wireless pressure and temperature monitoring.
  • Repeater was set under the gateway.
  • The maximum distance between the repeater and transmitters is approximately 500m.
Übersicht:

The use of wireless technology in industrial automation systems offers a number of potential benefits, from the obvious cost reduction brought about by the elimination of wiring to the availability of better plant information, improved productivity and better asset management. However, its practical implementation faces a number of challenges: not least the present lack of a universally agreed standard. This article looks at some of these challenges and presents the approach being taken by Yokogawa.

Übersicht:

Download this eBook and learn:

  • The basic physics of pressure
  • Different types of pressure sensors
  • Features of pressure transmitters
  • Pressure transmitters communications standards
  • Key characteristics of pressure
  • Common types of diaphragm seals
Übersicht:

In recent years, more field wireless devices have been used in hazardous areas. Meanwhile, in plants that are usually recognized as hazardous areas, there are numerous metallic tanks and pipes that easily shield or reflect radio waves, as discussed later, thus resulting in a poor environment for wireless communication.

Übersicht:

The innovation of wireless technology increases the use of wireless communication in the industry. The introduction of wireless communication to plants, however, requires strict features such as robustness, real-time responsiveness, and low power consumption. This has restricted the use of wireless communication to limited applications such as data logging and device status monitoring that does not require strict real-time responsiveness and data arrival reliability in communication.

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