Easy to start using! Wide Area Monitoring System solves 

remote monitoring issues

Facilities that exist in a wide area can be integrated and managed

through remote monitoring.

The cloud can be used to reduce time and costs, and to

efficiently build monitoring systems.

Value through problem solving

By capturing changes in the condition of cooling water pumps and motors

with vibration sensors, cooling water pump parts can be replaced before

failure occurs. This prevents cooling water pump failure and damage to the

equipment to be cooled.

By capturing changes in the condition of cooling water pumps and motors

with vibration sensors, cooling water pump parts can be replaced before

failure occurs. This prevents cooling water pump failure and damage to the

equipment to be cooled.

The number of man-hours spent on patrol inspections can be reduced.

Proposed System Configuration

Wireless vibration sensors are installed at locations where pump and motor

vibration can be measured. The measured vibration values are aggregated

into the Wide Area Monitoring System, and the AI (State Change Detection Service)

 learns the vibration values under normal conditions and creates a model.

Whenever there is a change in the vibration values of pumps and motors that

deviates from the normal state, the AI model detects the change. This enables

early detection of changes in the condition of pumps and motors, leading to 

replacement of parts before they fail. By applying this system to cooling water

pumps in various locations in the plant, it is possible to monitor all cooling water

pumps at once to see which ones are showing abnormalities. 

Furthermore, the Wide Area Monitoring System is scalable to enable combined

monitoring of cooling water temperature and pressure, as well as equipment data,

allowing for flexible proposals tailored to each case.

Are you having any problems like this?

Equipment  Cooling water pump equipment

Problems  Cooling water pump equipment

Detecting the signs of cooling water pump failure

in various places in the plant

▲ Cooling water pumps are used in various

places in the plant.

Deterioration of the rotating equipment and

other components that make up the cooling

water pumps can lead to failure of the pumps.

Furthermore, if the cooling water pumps fail

and the cooling water temperature cannot be

maintained, the equipment that needs to be

cooled may also be damaged.

▲ Cooling water pumps are located in various

places in the plant, which require many

man-hours to inspect.

For Safe Use of Product

For the protection and safety of the operator and the

instrument or the system including the instrument, please

be sure to follow the instructions on safety described

in this manual when handling this instrument. In case

the instrument is handled in contradiction to these

instructions, Yokogawa does not guarantee safety.

Please give your attention to the followings.

(a) Installation

• The instrument must be installed by an expert

engineer or a skilled personnel. The procedures

described about INSTALLATION are not permitted for

operators.

• In case of high process temperature, care should

be taken not to burn yourself because the surface of

body and case reaches a high temperature.

• The instrument installed in the process is under

pressure. Never loosen the process connector bolts

to avoid the dangerous spouting of process fl uid.

• During draining condensate from the pressure

detector section, take appropriate care to avoid

contact with the skin, eyes or body, or inhalation of

vapors, if the accumulated process fl uid may be toxic

or otherwise harmful.

• When removing the instrument from hazardous

processes, avoid contact with the fl uid and the interior

of the meter.

• All installation shall comply with local installation

requirement and local electrical code.

(b) Wiring

• The instrument must be installed by an expert

engineer or a skilled personnel. The procedures

described about WIRING are not permitted for

operators.

• Please confi rm that voltages between the power

supply and the instrument before connecting the

power cables and that the cables are not powered

before connecting.

(c) Operation

• Wait 10 min. after power is turned off, before opening

the covers.

(d) Maintenance

• Please do not carry out except being written to

maintenance descriptions. When these procedures

are needed, please contact nearest YOKOGAWA

offi ce.

• Care should be taken to prevent the build up of drift,

dust or other material on the display glass and name

plate. In case of its maintenance, soft and dry cloth is

used.

(e) Explosion Protected Type Instrument

• Users of explosion proof instruments should refer fi rst

to section 2.4 (Installation of an Explosion Protected

Instrument) of this manual.

• The use of this instrument is restricted to those who

have received appropriate training in the device.

• Take care not to create sparks when accessing the

instrument or peripheral devices in a hazardous

location.

(f) Modifi cation

• Yokogawa will not be liable for malfunctions or

damage resulting from any modifi cation made to this

instrument by the customer.

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)

□ FUNCTIONAL SPECIFICATIONS

Output “◊”

For 4 to 20 mA HART / BRAIN

(Output signal code D and J)

Two wire 4 to 20 mA DC output with digital

communications, linear or square root programmable.

BRAIN or HART FSK protocol are superimposed on

the 4 to 20 mA signal.

Output range: 3.6 mA to 21.6 mA

Output limits conforming to NAMUR NE43 can be

pre-set by option code C2 or C3.

For 1 to 5 V HART

(Output signal code Q)

Three or four wire low power 1 to 5 V DC output with

HART, linear or square root programmable.

HART protocol are superimposed on the 1 to 5 V DC

signal.

Output range: 0.9 V to 5.4 V DC

Failure Alarm

For 4 to 20 mA HART / BRAIN

(Output signal code D and J)

Analog output status at CPU failure and hardware

error;

Up-scale: 110%, 21.6 mA DC or more (standard)

Down-scale: −5%, 3.2 mA DC or less

For 1 to 5 V HART

(Output signal code Q)

Analog output status at CPU failure and hardware

error;

Up-scale: 110%, 5.4 V DC or more (standard)

Down-scale: −5%, 0.8 V DC or less

Damping Time Constant (1st order)

Amplifier damping time constant is adjustable from

0.00 to 100.00 s by software and added to response

time.

Note: For BRAIN protocol type, when amplifier software

damping is set to less than 0.5 s, communication

may occasionally be unavailble during the

operation, especially while output changes

dynamically. The default setting of damping

ensures stable communication.

Update Period “◊”

Differential pressure: 45 ms

Static pressure: 360 ms

Zero Adjustment Limits

Zero can be fully elevated or suppressed, within the

lower and upper range limits of the capsule.

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.