EJX510B 무선 인라인 절대 압력 전송기

고성능 무선 절대 및 게이지 압력 전송기 EJX510B 및 EJX530B는  single crystal silicon resonant sensor를 특징으로하며 액체, 가스 또는 증기 압력을 측정하는 데 적합합니다. EJX510B 및 EJX530B는 프로세스 변수 뿐만 아니라 무선 신호를 사용하여 설정 Parameters를 전송합니다. 전송기는 내부 배터리로 작동하며 하드 와이어 링이 필요 없기 때문에 설치 비용이 감소 될 수 있습니다. 통신은 ISA100.11a 프로토콜 스펙을 준수합니다.


  • 긴 수명의 배터리 설계
    두 개의 대용량 리튬 - 티 오닐 클로라이드 배터리를 사용하여 초 저 전류 소비 설계는 수년간 무선 작동을 제공합니다.
  • 보안이 검증 된 무선 네트워크 연결
    무선 네트워크 구성 및 parameter 설정을 위한 장치 간 적외선 통신.
  • 빠른 업데이트 시간
    무선으로 게시하기 위해 측정 된 프로세스 값에 대해 0.5 초에서 60 분까지 선택할 수 있습니다.


Application Note

ISA100 wireless temperature and pressure transmitters.

  • 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.
  • Wireless pressure and temperature monitoring.
  • Repeater was set under the gateway.
  • The maximum distance between the repeater and transmitters is approximately 500m.

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

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.

Yokogawa Technical Report

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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