Key Benefits and Advantages
Advanced Process Isolation: The remote diaphragm seal system protects the transmitter’s internal components from extreme process temperatures and aggressive chemical media. This design ensures accurate sensing of flow and level in distillation columns, reactors, and storage tanks without the risk of clogging or sensor degradation.
Significant Infrastructure Savings: As a completely wireless solution, the EJX118B eliminates the need for signal cables, power wiring, and protective conduits. This drastically reduces installation time and labor costs, particularly in remote areas, large-scale tank farms, or existing facilities where cable tray space is exhausted.
Ultra-Low Power Consumption: Engineered for years of maintenance-free operation, the EJX118B features a high-efficiency design powered by two high-capacity lithium-thionyl chloride batteries. This long-life battery design ensures the transmitter remains a reliable data point in your network without the need for frequent site visits.
Secure and Simplified Configuration: Security is a priority for industrial wireless networks. The EJX118B utilizes infrared communication for initial network joining and parameter configuration. This “out-of-band” setup ensures that wireless network keys and sensitive parameters are never exposed over the air during the provisioning process.
High-Speed Wireless Updates: Despite being battery-powered, the EJX118B offers rapid data publishing. Operators can select update rates ranging from a quick 0.5 seconds for dynamic control loops to 60 minutes for slow-moving tank levels, allowing for a customized balance between data freshness and battery longevity.
Proven DPharp Performance: At its core, the EJX118B utilizes Yokogawa’s digital silicon resonant sensor technology. This ensures that the transition to wireless does not mean a sacrifice in precision, providing the same high accuracy and stability expected from a world-class differential pressure transmitter.
Technical Properties
Operation: Wireless differential pressure measurement with remote diaphragm seal isolation.
Wireless Protocol: Compliant with ISA100.11a specifications.
Service: Measurement of Liquid, Gas, and Steam (Flow, Level, Density, and Pressure).
Power Source: Two high-capacity lithium-thionyl chloride (Li-SOCl2) batteries.
Update Time: Selectable from 0.5 seconds up to 60 minutes.
Configuration: Local infrared (IR) port for secure wireless network joining and parameter setting.
Signal Transmission: Bi-directional transmission of process variables and device parameters.
Seal Connection: Capillary tubes with various fill fluid options for different temperature ranges.
Field of Application
The EJX118B is the preferred choice for differential pressure measurement in remote or hazardous areas where process media must be isolated from the instrument.
Primary Industries and Uses:
-
Oil and Gas: Monitoring levels in remote production tanks and separators where power is unavailable.
-
Chemical and Petrochemical: Measuring flow and level in high-temperature or corrosive media within large-scale refinery units.
-
Food and Beverage: Hygienic level measurement in tall fermentation or storage tanks using diaphragm seals to prevent contamination.
-
Water and Wastewater: Tracking flow in remote pipelines and large reservoirs where trenching for cables is unfeasible.
-
Pharmaceutical: High-precision vacuum or pressure monitoring in sterile processing environments where remote mounting is required.
