Les séparateurs à membrane sans fil sont utilisés pour empêcher le fluide process d'entrer directement dans la chambre de mesure des transmetteurs de pression différentielle et de pression. Ils sont reliés au transmetteur à l'aide de capillaires remplis d’huile spécifique
Les transmetteurs de pression différentielle à séparateurs membrane sans fil EJX118B peuvent être utilisés pour mesurer le débit de liquide, de gaz ou de vapeur, ainsi que le niveau, la densité et la pression de liquide.
Les EJX118B transmettent non seulement les variables de process, mais également les paramètres de réglage à l'aide du signal sans fil. Les émetteurs fonctionnent avec un pack de piles interne et le coût d’installation peut être réduit car le câblage n’est pas nécessaire. Le protocole de communication est conforme aux spécifications du protocole ISA100.11a
Details
- Conception de piles longue durée
La conception à très faible consommation de courant utilisant deux piles lithium-chlorure de thionyle à haute capacité assure un fonctionnement sans fil pendant des années. - Rejoindre un réseau sans fil sécurisé
Communication infrarouge entre les appareils pour la configuration et le paramétrage du réseau sans fil. - Temps de mise à jour rapide
Sélectionnable de 0,5 seconde à 60 minutes pour que la valeur de processus mesurée soit émise sans câblage.
Ressources
ISA100 wireless temperature and pressure transmitters.
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.
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.
- Temperature Transmitter (YTA) and Pressure Transmitter (EJX) are installed at each monitoring point.
- Repeater is installed on high position.
- 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.
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
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
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.
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.
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.
Downloads
Brochures
Instruction Manuels
Général Spécifications
Certificats
Dessin
- EJX118B Diaphragm Sealed Differential Pressure Transmitter (Diaphragm seal section, Extended type) (132 KB)
- EJX118B Diaphragm Sealed Differential Pressure Transmitter (Diaphragm seal section, Flush type with ring) (141 KB)
- EJX118B Diaphragm Sealed Differential Pressure Transmitter (Diaphragm seal section, Flush type, No ring) (183 KB)
- EJX118B Diaphragm Sealed Differential Pressure Transmitter (Transmitter body section) (291 KB)
- EJX118B Diaphragm Sealed Differential Pressure Transmitter (Diaphragm seal section, Combination type) (133 KB)
- EJX110B, EJX310B, EJX430B Long Vent Plug (/U1) (148 KB)
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