The high performance diff erential pressure transmitter

EJA110E features single crystal silicon resonant

sensor and is suitable to measure liquid, gas, or

steam fl ow as well as liquid level, density and

pressure. EJA110E outputs a 4 to 20 mA DC signal

corresponding to the measured diff erential pressure.

Its accurate and stable sensor can also measure the

static pressure which can be shown on the integral

indicator or remotely monitored via BRAIN or HART

communications. Other key features include quick

response, remote set-up using communications and

self-diagnostics. FOUNDATION Fieldbus, PROFIBUS

PA and 1 to 5 V DC with HART (Low Power) protocol

types are also available. EJA-E series models in

their standard confi guration, with the exception of

the Fieldbus, PROFIBUS and Low Power types,

are certifi ed as complying with SIL 2 for safety

requirement.

 STANDARD SPECIFICATIONS

Refer to GS 01C31T02-01EN for Fieldbus

communication type and GS 01C31T04-01EN for

PROFIBUS PA communication type for the items

marked with “◊.”

□ PERFORMANCE SPECIFICATIONS

Zero-based calibrated span, linear output, wetted

parts material code S and silicone oil, unless

otherwise mentioned.

For Fieldbus and PROFIBUS PA communication

types, use calibrated range instead of span in the

following specifi cations.

Specifi cation Conformance

EJA-E series ensures specifi cation conformance to at

least ±3σ.

Reference Accuracy of Calibrated Span

(includes terminal-based linearity, hysteresis, and

repeatability)

■FEATURES

• User-oriented Functionality Fluid Adhesion Level Diagnosis

By constantly monitoring the level of insulating

substance on the electrodes, it is possible to determine

when maintenance is required.

With the utilization of an optional replaceable electrode,

the electrodes can be easily removed from the flowmeter

and cleaned.

• Flexible Electrical Connection Direction

The converter or the terminal box can be rotated

arbitrarily to change the directions of electrical

connection on the site.

• Clear and Versatile Indications

The LCD indicator employs a large, backlit full dot

matrix, that can facilitate various displays.

One to three lines are available. When there is an alarm

condition, a full description of the countermeasure is

indicated.

“Easy Setup” Parameters “ ”

The most frequently used parameters are arranged in a

group at the top.

The infra-red switches enable the users to set

parameters without opening the cover.

● Expansion of Product Lineup

STANDARD SPECIFICATIONS

Converter (Integral flowmeter)

The contents of (*1) and  (*2)  described in the converter

specifications are follows.

*1: Select two points from: one pulse output, one alarm

output, one status input, or two status outputs.

*2: For models without an indicator, the configuration tool

(Such as HHT (handheld terminal) or FieldMateTM

etc.) is necessary to set parameters.

Excitation Method:

• Standard dual frequency excitation:

Size 2.5 to 400 mm (0.1 to 16 in.)

• Enhanced dual frequency excitation:

Size 25 to 200 mm (1.0 to 8.0 in.)

(Optional code  HF1 or HF2)

Input Signal (*1) “ ”:

One Status Input: Dry contact

Load Resistance: 200 Ω or less (ON), 100 kΩ or more

(OFF)

Output Signals “ ”:

• One Current Output: 4 to 20 mA DC (load resistance:

750Ω maximum, including cable resistance)

• One Pulse Output (*1):

Transistor contact output (open collector)

Contact capacity: 30 V DC (OFF), 200 mA (ON)

Output rate: 0.0001 to 10.000 pps (pulse/second)

• One Alarm Output (*1):

Transistor contact output (open collector)

Contact capacity: 30 V DC (OFF), 200 mA (ON)

• Two Status Outputs (*1):

Transistor contact output (open collector)

Contact capacity: 30 V DC (OFF), 200 mA (ON)

Communication Signals “ ”:

BRAIN or HART communication signal

(Superimposed on the 4 to 20 mA DC signal)

Distance from Power Line: 15 cm (6 in.) or more

(Parallel wiring should be avoided.)

Improved Accuracy Specification

The standard accuracy is 0.35% of reading. Also

available is an optional high accuracy calibration rated at

0.2% of reading.

Extra Small Size Flange Type

Remote Flowtube

The flange type is now available from a 2.5 mm size.

Various Sanitary Connections

A variety of sanitary connections are available, such as

Tri-Clamp, ISO, DIN and SMS.

● Enhanced Performance and Specifications

Enhanced Dual Frequency Excitation Method

The “Enhanced Dual Frequency Excitation Method” can

be optionally selected.

For difficult applications such as for high concentration

slurries or low conductivity fluid, extremely stable

measurements can be realized.

Improved Minimum Conductivity

The newly designed AXF converter permits the

measurement of fluids with conductivity as low as 1µS/cm.

High-Speed Pulse Output “ ”

The pulse rate now goes up to 10.000 pps (pulse/

second) for use with high speed applications such as in

short time batch processes.

Versatile Input/Ouput Function for Integral Flowmeter

Integral type is also equipped with versatile input/output

function.

The AXF magnetic flowmeter series are sophisticated

products with outstanding reliability and ease of

operation, developed on the basis of decades of field

proven experience.

The combination of a replaceable electrode and the

diagnostic to defect adhesion level on the electrodes

dramatically improves maintainability.

The AXF employs the fluid noise free “Dual Frequency

Excitation Method” and the newly added “Enhanced Dual

Frequency Excitation Method” as an option for more

difficult applications to ensure greater stability and quicker

response.

Note: The “Dual Frequency Excitation Method” is

Yokogawa’s unique technology.

Fieldbus communication type is also available.

Refer to GS 01E20F02-01E for FOUNDATIONTM fieldbus

communication type and GS 01E20F12-01E for

PROFIBUS PA communication type regarding the items

marked with “ ”.

 FEATURES

●    FCN-based    Turbomachinery    Controller

The FCN autonomous controller can be applicable to a variety of processes from sequence control processes to

analog control processes. A wide variety of types of I/O modules are supported and a flexible system configuration

can be selected according to purpose.

Applying an FCN-based turbomachinery controller to the control of generator turbines or other turbomachinery such

as compressors also enables control of their ancillary facilities.

The CPU module, power supply, and communication can be made redundant for applications that require high

reliability.

●    Turbomachinery    I/O    Modules

Combined use of an FCN autonomous controller and turbomachinery I/O modules makes it possible to control and

protect turbomachinery such as turbines and compressors. With the STARDOM turbomachinery controller, a flexible

system can be constructed according to the scope of control and the installation space.

Of the turbomachinery control and protection functions, processing that requires high speed response is carried out by

the turbomachinery I/O modules. There are two types of turbomachinery I/O modules: a servo module that performs

high speed servo control in a cycle of 5 ms and a high speed protection module that performs a high speed protection

action in a fast scan (5 ms) or a standard scan (10 ms).

    FUNCTIONS

The primary functions of a turbomachinery controller comprise of regulatory control of the turbomachinery speed,

load, and fluid pressure, and so on, and protection of the turbomachinery from anomalies. Control and monitoring of

ancillary facilities can also be added if necessary.

●    Configuration    Types

There are two types of configuration for the STARDOM turbomachinery controller.

Type 1: Configuration with a FCN-RTU

Type 2: Configuration with a FCN-500