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March 30, 2026 BY cniacs

IN YOKOGAWA

YOKOGAWA EJA Series Differential Pressure and Pressure Transmitters

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.

• 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.

March 30, 2026 BY cniacs

IN YOKOGAWA

YOKOGAWA EJA110E Specifi cation Conformance

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.

March 30, 2026 BY cniacs

IN YOKOGAWA

YOKOGAWA EJA110E Diff erential Pressure Transmitter

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.

March 25, 2026 BY cniacs

IN Watlow

Watlow EPack-2PH Compact SCR Power Controllersv

WaBenefits

OEMs and system integrators need to be able to react quickly to

customer needs while maximizing resources. End users continually need

to improve operational efficiency and productivity. Eurotherm EPack™-

2PH Compact SCR Power Controllers have been designed to deliver

real savings, helping to reduce energy costs. Quick and easy to install,

integrate and commission. Compact, with powerful and versatile features

that help minimize costs whilst improving productivity and quality.

• Improved energy consumption to help reduce energy bills

• Help maximize yield with accurate and repeatable control

• Customizable options provide better value for money

• Easy to specify with reduced number of hardware variants

• Fast integration and commissioning

• Monitor efficiently with integrated measurements

• Simplified design reduces stock and spares holding

Key features

• Native communication: Modbus® TCP and

EtherNet/IP or PROFINET comms for easy

connection to PLC

• True power control

• Large voltage capability from 100V to 500V

adjustable in the same variant

• Measurements: current, voltage, power,

impedance, energy usage and more

• SCCR 100kA with fuse

March 25, 2026 BY cniacs

IN Watlow

Watlow EPack-2PH Key features

Key features

• Native communication: Modbus® TCP and

EtherNet/IP or PROFINET comms for easy

connection to PLC

• True power control

• Large voltage capability from 100V to 500V

adjustable in the same variant

• Measurements: current, voltage, power,

impedance, energy usage and more

• SCCR 100kA with fuse

EPack-2PH controller order codes

The EPack power controller is ordered using a short code for hardware

and chargeable software options and an optional extended code section

configuration of commissioning options.

If the extended code is not used, the software configuration is completed

using a quick start procedure or using Eurotherm iTools software.

EPack controllers may be upgraded with additional chargeable options at

any time using a software key order code.

March 25, 2026 BY cniacs

IN Watlow

Watlow Large and Extra-Large WATCONNECT® Panels

Watlow’s New WATCONNECT® Large and Extra-Large Panels Maximize

Process Uptime with Small Footprint

Watlow’s new WATCONNECT® large and extra-large control panels

are designed to maximize process uptime with a small footprint.

Unlike most control panels installed in the field, WATCONNECT large

and extra-large control panels permit safe access to control compartments

allowing users to troubleshoot without shutting down the process.

In addition, the large and extra-large panels only require 50% of the

space of competitive panels, which frees up areas for other critical

equipment needed in the process.

As an additional option, the Data Insights Package offers remote monitoring

to the cloud of thermal system analytics such as power and control health,

failed element detection, process continuity and more.

All WATCONNECT control panels are pre-designed for a proven, high-quality

solution.

Features and Benefits

Advanced thermal design

• Offers high reliability

• Includes solid copper internal power interconnect for less expansion and contraction

• Provides environmental and field connection health monitoring for identifying

issues before shutdown

Easy access to control compartment

• Allows for panel troubleshooting without process shutdown

Resettable components

• Reduces maintenance time

• Eliminates need for spare parts

Small footprint

• Utilizes up to 50% less control room space than other panels

Data Insights Package (optional) – Industry 4.0

• Allows for remote review and analysis of the data collected by a data scientist

and thermal system expert

• Includes comprehensive quarterly thermal system report including insights and

recommendations for system improvement

• Offers collaborative touchpoints: Engineer-to-engineer data review

• Enables preventative maintenance or factory assistance

March 25, 2026 BY cniacs

IN Watlow

Watlow The scalability and configurability of EPack power controller

EPack 2-PH controller is the latest generation of power controllers designed to

be a cost effective solution for the control of 3 phase loads. The 2 leg control

is particularly adapted to the control of balanced loads, directly, or through

transformers. Burst firing avoids generation of harmonics and reduces the

consumption of reactive power.

EPack 1-PH SCR controllers are designed to carry currents from 1 to 125 amps,

with operating voltage between 100 and 500 Volts

The scalability and configurability of EPack power controller range fits with the

requirements of each application. A wide range of alarms can quickly identify a

controller detected fault which reduces downtime.

Key Features:

• Nominal load current from 1 amp to 125 amps

• Voltage up to 500V

• Compact DIN Rail and bulkhead mounting

• Configurable via front panel or Eurotherm software (iTools)

• Plug and play Ethernet communications with Zero configuration networking (zeroconf)

• V2 , I2 or True power control

• Controls comprehensive range of loads: resistive, infrared, transformer primary, silicon carbide

• Energy usage measurement

• Advanced load diagnostics

• Integrated dual port Ethernet switch for “daisy chained” communications

• Modbus® TCP or Ethernet IP protocols

• Defend OEM knowledge and IP (OEM Security)

March 25, 2026 BY cniacs

IN Watlow

Watlow Eurotherm® EPack™ compact SCR power controllers-1PH -2PH -3PH

Efficient Power Control for Electrical Heating Applications

Designed for fast integration and optimum efficiency

Description

OEMs and system integrators need to be able to react quickly to customer

needs while maximizing resources. Whether replacing an existing product

or designing a new process, the design of the EPack™ SCR

(Silicon Controlled Rectifier) power controller has been carefully considered

for fast and easy panel installation, commissioning and integration into wider

systems, lowering equipment costs, and manufacturing times for you and

your customers.

End Users continually need to improve operational efficiency and productivity.

EPack power controller range can deliver real savings, significantly reducing

your energy costs. Get the best from your operations; quick and easy to install,

integrate and commission. A compact size doesn’t compromise powerful and

versatile features that minimize costs and improve productivity and quality.

EPack 3-PH power controller is the ideal solution for the control of all kinds of

loads. The control of each phase ensures accurate control, even if the loads

are unbalanced). The currents and voltage measures also allow a high level

of diagnostics, which can be used for alarm management as well as monitoring

(impedance, energy counter, reactive power).

EPack 2-PH controller is the latest generation of power controllers designed to

be a cost effective solution for the control of 3 phase loads. The 2 leg control

is particularly adapted to the control of balanced loads, directly, or through

transformers. Burst firing avoids generation of harmonics and reduces the

consumption of reactive power.

EPack 1-PH SCR controllers are designed to carry currents from 1 to 125 amps,

with operating voltage between 100 and 500 Volts

The scalability and configurability of EPack power controller range fits with the

requirements of each application. A wide range of alarms can quickly identify a

controller detected fault which reduces downtime.

March 25, 2026 BY cniacs

IN Watlow

Watlow Eurotherm® EPack™ Lite Compact SCR Power Controllers

Description

The end user, the machine builder or the system integrator expects the best

solutions in terms of performance, ease of use and reliability in order to control

the energy delivered to their process.

Whether replacing an existing product or building a new process, the EPack Lite

SCR (Silicon Controlled Rectifier) power controller has been carefully designed to

aid easy and fast integration in industrial systems.

The EPack Lite controller range offers a simplified choice, fast commissioning

without any compromise on performance in order to provide a high level of quality,

accuracy and reliability to the process.

More than just a product, EPack Lite power controllers bring a tailored solution based

on more than 50 years of Eurotherm expertise.

> See EPack™ compact SCR power controllers brochure HA031554 to discover how

full EPack range can add value to your business

The EPack Lite-1PH controller provides control of single phase non variable resistive

or primary transformer loads. It combines simplicity of setup and operation in a

compact format.

The EPack Lite-2PH controller is the latest generation of power controllers designed

to be a cost-effective solution for the control of 3 phase loads. The 2 legs control is

particularly adapted to the control of balanced loads, directly, or through transformers.

Burst firing avoids generation of harmonics and reduces the consumption of reactive power.

The EPack Lite-3PH controller is the ideal solution for the control of non-variable resistive

or primary transformer loads. The control of each phase ensures accurate control,

even if the loads are unbalanced. The currents and voltage measures also allow a

high level of diagnostics, which can be used for alarm management.

March 25, 2026 BY cniacs

IN Watlow

Watlow EPack Lite-2PH controller