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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 EJA110E 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 EJA110E is our standard traditional-mount differential pressure transmitter in this series.

EJA110E features include:

  • 0.055% Accuracy (0.04% Accuracy optional)
  • 0.1% Stability per 10 years
  • 90 ms Response Time
  • Exida and TUV SIL 2 / SIL3 Certified
  • MWP 2,300 psi (MWP 3,600 psi option)
  • 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 

Stability Under All Operating Conditions

Stability Under All Operating Conditions

Digital DPharp sensor provides stable measurement in all operation conditions.
To some degree, all pressure sensors on the market provide stable measurement with variations in temperature and static pressure. But what happens when the sensor is over-pressured (pressure > sensor Upper Range Limit (URL)) - like occurs when a manifold is incorrectly sequenced during start-up or shutdown? Or a process upset? Analog sensors are actually damaged during these events requiring the transmitter to be recalibrated to return to accurate operation or even replaced. Yokogawa's transmitters can withstand large overpressure events. (*See the table below.) Once it returns to normal operating pressure (pressure < URL of the sensor), the transmitter will return to operation within the defined accuracy and stability specifications - no need to recalibrate. Basically, the Yokogawa DPharp sensor has a larger operational envelope compared to an analog sensor.

Poor Performance = Lost Money

*Maximum overpressure stability.
 EJA110EEJX110AEJA130EEJX130A
MWP2,300 psi3,600 psi4,500 psi4,500 psi
Notes--M or H RangeM or H Range

 

More Information

More Information

Save up to 20% on CAPEX spending using the DPharp's multi-sensing capability. With our competitor's transmitters using analog sensors, any application that requires measurement of both differential pressure (DP) and static pressure (SP) requires two separate transmitters - one to measure the DP and one to measure the SP. Yokogawa's differential pressure transmitter with multi-sensing DPharp sensor, can measure both process variables (DP and SP) with a single transmitter. Two transmitters will always cost more than one transmitter.

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 

Advanced Diagnostics

Advanced Diagnostics

Reduce unscheduled maintenance by 60%.
Predictive impulse line blocking and stream tracing diagnostics lets you see problems before they happen.


Specification

Measurement Types
Primary VariableDifferential Pressure (DP)
Secondary VariableStatic Pressure (SP)
Reference Accuracy
Primary Variable±0.055% of Span
Secondary Variable±0.5% of Span available
Response Time
Primary Variable90 msec
Secondary Variable360 msec
Long Term Stability
Primary Variable±0.1% of URL per 7 years
Over-pressure Effect
Primary Variable±0.03% of URL
Rangeability
Primary Variable100:1