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CENTECH VIETNAM JSC

Address: No. 91-93, Lane 5, An Phu Ward, District 2, HCM City
Telephone: (+84) 24 6663 2426
Hotline: (+84) 961 739 336
Email: centech@centechvn.com
Operation Time: all weekdays (except Sunday and National Holidays)

Yokogawa EJA210E Flange Mounted Differential Pressure Transmitter

Vendor: Yokogawa

The EJA-E series of transmitters is Yokogawa's most recent evolution of the DPharp family of pressure transmitters.

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Overview

Released in 2012, it combines the ruggedness and success of the work-horse EJA-A series with the performance of the thoroughbred EJX-A series to deliver the type of product you have come to expect from Yokogawa.

The EJA210E is the Flange-mount Liquid Level Transmitter in the series.

EJA210E features include:

  • ± 0.075% Accuracy
  • ± 0.1% per 1 year Stability
  • 120 msec Response Time
  • Exida and TUV SIL2 / SIL3 Certified
  • Signal Characterizer for the 4 to 20 mA output
  • Local Parameter Setting (LPS)


Operation

Digital Performance

Digital Performance

Yokogawa's DPharp digital sensor offers twice the performance and stability of the competitor's analog sensors. The DPharp uses the latest in IC Chip-style design and manufacturing technology. Analog sensors are based on older design technology. Although analog sensors are good, the modern DPharp sensor out performs them. A Yokogawa transmitter with DPharp digital sensor will give you the consistent, reliable, accurate measurement you need.

Poor Performance = Lost Money 

Accuracy Under All Operating Conditions

Accuracy Under All Operating Conditions

Yokogawa's DPharp sensor has the ability to measure the differential pressure (DP), static pressure (SP), and sensor temperature from a single sensor. Giving these three pieces of process data, Yokogawa's transmitter can compensate the DP measurement for Temperature Effect and Static Pressure Effect in real time. This is referred to as Dynamic Compensation and improves the DP measurement accuracy.

Competitor's analog sensors can only measure DP and Sensor temperature. So, theirs can compensate for temperature Effect; but, since the SP measurement is missing, it cannot compensate for Static Pressure Effects.

Poor Performance = Lost Money 

More Information

More Information

Yokogawa's DPharp sensor can supply you greater insight into your process. One transmitter can supply your control system with Tank Level (Primary Variable), Blanket Pressure (Secondary Variable), and Sensor Temperature (Third Variable) - no need for multiple devices.

More Information = Found Money 

Signal Characterization

Signal Characterization

Signal characterization is a versatile function available on all Yokogawa pressure transmitters. The function is used to compensate the analog 4 to 20 mA output signal for non-linear applications. Such applications include tank strapping or flow measurements; but, it can be used in any application where the relationship between the pressure input and the desired output signal are known. This feature can use up to 10-points.

Greater Flexibility = Found Money 

Local Indicator

Local Indicator

All of the process variable's measured by Yokogawa's transmitter can be displayed on the easy to read local indicator. The indicator can display any of the variables measured (DP, SP, Capsule temperature); alarm codes with short text; and a sweeping bar graph to give a graphical representation of the process. Fully programmable, the indicator is customizable for your needs. Unlike competitor's transmitters, the indicator is not driven off the 4 to 20 mA analog signal, but, exist on a separate circuit. This allow the display to operate independently from the output signal, so it can indicate information that maybe more useful at the transmitter location.

More information = Found Money 

Standard Diagnostics

Yokogawa's transmitter has 40 self-diagnostic checks to ensure that everything is running smoothly within the transmitter. But, all transmitters on the market have a level self-diagnostic checks. However, Yokogawa has two that are not offered by competitors. First, the transmitter features a patented Back-check Technology that reverse checks all calculations in real-time. Second, the DPharp sensor is an active sensor. This means that the sensor is constantly supplying a signal even when the process has not changed. If the signal is lost from the sensor, the transmitter knows there is an issue. Competitor's analog sensors are passive. They do not supply a continual signal, so, is the sensor still working when there is no signal?

Good Diagnostics = Less Surprises


Specification

Measurement Types
Primary VariableLiquid Level (Differential Pressure)
Secondary VariableStatic Pressure
Reference Accuracy
Primary Variable±0.075% of Span
Secondary Variable±0.5% of Span
Response Time
Primary Variable120 msec
Secondary Variable360 msec
Long Term Stability
Primary Variable±0.1% of URL per 12 months (DP)
Rangeability
Primary Variable100:1
Specification Conformance
EJA-E Series±3σ