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Bulletin 01C25A02-01E
www.dpharp.com
Differential Pressure and Pressure Transmitters
DPharp Digital Transmitters
A new standard for
and
2 3
Unmatched precision and
real world accuracy.
Unconditional long term
stability with lowest Total
Cost of Ownership (TCO).
Multi-sensing functionality.
Inherently fail-safe sensor
with no undiscovered failure
modes.
Certified to IEC61508 as
standard for single use SIL2
and dual use SIL3.
Rugged, yet compact
construction.
Multiple material options for
harsh industrial environment.
Pressure
Pressure
(fc) (ft)
Key
fc = Frequency Compression
ft = Frequency Tension
Compression Tension
4 5
WORKING PRINCIPLE
DPharp digital sensor uses two single crystal silicon
resonators vibrating at their natural frequencies. When
pressure is applied, one of the resonators goes into
tension, while the other goes into compression mode.
The CPU directly counts the sensor output frequencies
without any additional A/D conversion. Due to the ex-
cellent elastic properties of silicon material, the DPharp
sensor exhibits greater linearity and repeatability, with
no inherent hysteresis. Resonant sensor also provides
a large output signal resulting in greater sensitivity and
higher turndown.
Unequalled precision and long term
stability for your measurements!
ARC Statement
“ Proprietary sensors that offer real added value to a customer are expected to
increase in the market. With the exception of Yokogawa, however, not many
suppliers are expected to invest the time and money into development of
super-sophisticated new age pressure sensors. . .”
Automation Research Corporation (April 1995)
MULTI-SENSING
DPharp digital sensor has the unique ability to simultaneously
measure static pressure and differential pressure.
Additionally capsule and housing temperatures are also
measured. Multi-sensing platform enables real-time dynamic
compensation for unmatched precision and forms the basis for
implementation of advanced diagnostics. These information are
available through various digital communication protocols;
providing additional insight into your process.
Multi-sensing functionality with guaranteed accuracy
of static pressure signal allows the process to operate
with fewer devices delivering reduced lifecycle costs.
More really does mean less!
HIGH PERFORMANCE
Long term, accurate and stable measurement in real world
conditions is fundamental to realize reliable and efficient plant
operation. Transmitters in the field are subjected to continuous
variations of ambient and process temperature, static and over-
pressure conditions affecting the accuracy. Long term stability of
the transmitter is a measure of performance drift and dependent
on the sensor technology. Total accuracy and long term stability
determine the recalibration interval for the devices according to
the acceptable performance level.
Unconditional guarantee of long-term
stability under complete range of operating
conditions!
0
0
80
140
Freq.(kHz)
Percentage of URL
50
fc
ft
100
Pressure
fc – ft = DP
fc + ft = SP
Resistance α Temperature
fc
ft
Not necessary
DPharp
40% less
CAPEX
Other
1000
1500
2000
2500
Installation
DPharp Transmitter
Other Transmitter
GP
D/P
GP
D/P
Time in service
Error(%)
Totalaccuracy
Acceptable performance
Calibration frequency
E1: Reference Accuracy of Calibrated Span
E2: Ambient Temperature Effects
E3: Static Span Effects
E4: Static Zero Effects
E5: Overpressure Effects
Total Accuracy = ± E1
2
+E2
2
+(E3+E4)
2
+E5
2
Long
term
stability
6 7
SAFETY FIELD DIGITAL SOLUTIONS
DPharp is an active pressure sensor, so even with no pressure applied the resonators oscillate at their
natural frequencies. Two independent resonators are utilized. If either one or both fail, the transmitter
diagnostics detects a capsule error. DPharp sensor is inherently fail-safe with no undiscovered failure
modes.
A patented reverse calculation algorithm validates internal measurements, calculations and detects any
malfunction of the CPU.
DPharp transmitters are capable of SIL2 single use and SIL3 redundant use, as standard. Same trans-
mitter can be used in control and safety applications which reduces spares inventory and simplifies
maintenance.
Yokogawa transmitters have undergone complete assessment of hardware for SIL2 and development
processes for SIL3 capability to IEC61508 safety standards.
Plant safety & reliability assured!
Open your eyes to a world of new opportunities… Release the trapped intelligence in your field assets
to get greater insight into your process.
Yokogawa’s Field Digital Solutions add new value to your instrumentation assets and plant operations
by establishing a reliable digital communications infrastructure to effectively utilize the multi-sensing and
advanced diagnostic capabilities offered by our intelligent devices.
Yokogawa fully supports open standards like HART, FOUNDATION fieldbus, Profibus, ISA100 Wireless*
and enabling technologies like FDT/DTM, EDDL to fully ensure customer’s freedom of choice by proven
and tested interoperability with process automation and asset management systems.
Maximize asset intelligence for operational excellence and reduced
lifecycle costs!
IEC61508 Certified
Safety as Standard,
Not an Option!
Knowledge
Data
Measure
(* Available on EJX - B series)
8 9
ROBUSTNESS
Robustness of installed instrumentation greatly impacts their
reliability and thereby plant availability. DPharp transmitters
are designed for harsh industrial environments with rugged
dual compartment enclosures. Multiple options are available
for housing material, painting, wetted parts and bolting to
enhance durability. Transmitters use Hastelloy C-276 isolating
diaphragms as standard for improved corrosion resistance.
DISPLAY CAPABILITY
Intelligent indicator clearly displays multiple process variables,
user configurable engineering units, communication protocol,
output status and diagnostics by alpha-numeric and bargraph
display. When using digital protocol, details of instrument model,
protocol version and device revision are indicated at start-up.
Descriptive alarm messages display abnormalities clearly to
simplify troubleshooting.
RESPONSE TIME
Small form factors and powerful electronics enable a fast
response time of 90 milliseconds. Fast response allows the
transmitter to react quickly to process changes. Together with
superior performance, it enables tighter control and reduces
process variability. Fast response is also critical for SIS and
anti-surge applications to maintain plant safety and prevent
equipment damage.
OVERPRESSURE
Overpressure event may occur due to incorrect operation of
valve manifold or process upsets during plant start-up. DPharp
transmitters incorporate an additional overpressure diaphragm
to protect the sensor from abnormal pressure surges. Yokogawa
has a published overpressure specification, based on DPharp
superior sensor characteristics.
Pressure
Time
90ms
EJX Output
Pressure input
Overpressure
diaphragm
Capsule body
Isolation
diaphragm
Blockage
HeatTraceHeatTrace
10 11
ADVANCED
DIAGNOSTICS
EJX Impulse Line Blockage Detection (ILBD) and heat tracing
diagnostics increase plant availability by enabling predictive
maintenance. The fluctuation of differential and static pressure,
capsule and ambient temperature signals from the multi-sensing
DPharp sensor are continuously monitored. By statistical
calculations and comparison to reference condition, the blockage
of high, low or both impulse lines can be determined.
Flange temperature monitoring provides diagnostics of heat
trace or enclosure heater failures.
CONTACT OUTPUT
EJX Series transmitters provide a unique open collector
contact output in addition to the analog signal, enabling easy
local alarm annunciation for process measurements or
diagnostic triggers.
The contact output is included in the safety certification of the
transmitter by TÜV.
PREMIUM
PERFORMANCE
EJX Series transmitters deliver premium performance up to
0.025% precision. Industry leading stability guarantee of 0.1%
URL for 10 years means reduced maintenance with extended
recalibration intervals.
EJX differential pressure transmitters also provide a static
pressure measurement with 0.2% accuracy enabling greater
insight into your process with fewer devices.
HIGH PRESSURE
CAPABILITY
EJX600 series pressure transmitters with direct screwed
connection enable compact inline installation. It is suitable for
measurement of absolute and gauge pressure up to 10,000
PSI with a superior accuracy and 10-year long term stability.
High Alarm
Low Alarm
Time
An alarm is generated.
An alarm is generated.
Flange temperature
High Pressure
Side Blockage
Low fluctuation
on HP side
DP (Differential
Pressure)
HP (Static
Pressure H side)
LP (Static
Pressure L side)
Outcome
12 13
MULTI-VARIABLE TRANSMITTER
EJX900 multi-variable transmitter successfully integrates the DPharp multi-sensing capability with an
onboard flow computer and can be configured for multi-variable (DP, SP, T) or dynamically compensated
massflow outputs. Dynamic flow compensation allows the EJX900 multi-variable transmitter to eliminate
inherent errors in the DP flow calculations at actual operating condition and to model the flow profile
more precisely.
Extensive range of primary elements and process fluids are supported. EJX900 is compliant to ISO5167,
IAPWS, DIPPR, AGA 3, AGA 8 and ISO12213 Standards.
FOUNDATION fieldbus and HART 7 communication protocols are supported. EJX900 also offers ad-
vanced diagnostics such as ILBD and flange temperature monitoring. It is IEC61508 certified for safety
by TÜV as standard.
Maximizing the full potential of DP flow measurement!
WIRELESS
EJX-B series of transmitters extend the benefits of DPharp digital sensing technology to the wireless
world, enabling advanced high precision digital sensing with all other benefits of wireless deployment.
Yokogawa EJX-B series is the world’s first wireless device based on customer driven ISA100 Industrial
Wireless standards family, offering customers with a secure, reliable and flexible plant wide wireless
solution for monitoring and control applications.
EJX-B series wireless products enable long distance, stable communication with fast update rates of
up to 1 second. They also feature a unique battery pack solution with standard lithium cells for easy of
maintenance and reduced operating costs.
The ISA100 family of open standards ensures interoperability of Yokogawa’s reliable wireless systems
with various third-party products to expand the range of wireless solutions for your plant.
The fusion of DPharp and ISA100 leading technologies deliver sustainable lifecycle benefits to meet your
most demanding requirements.
Building a wireless future to last!
Dimensional
Stability
Compressibility
Density
Gas Expansion
Discharge Coefficient,
Reynolds Number
Velocity,
Viscosity
14 15
TECHNOLOGY EVOLUTION
Yokogawa have been manufacturing electronic pressure transmitters for more than four decades. We
revolutionized the industry and set a new standard for pressure measurement with the introduction of the
DPharp digital sensor in 1991. The superior performance of the new technology enabled exponential
market expansion. As of 2011, we have delivered over 5 million DPharp transmitters operating in various
industries and applications to the complete satisfaction of our diverse customer base. Yokogawa
continues, the digital evolution with the enhancement of our DPharp family to deliver best in class
pressure measurement solutions to our esteemed customers.
Yokogawa DPharp transmitters achieved over 350% growth in the
last decade!
MODEL SELECTION
EJX-A EJA-E EJA-A
Accuracy
+/- 0.025% l
+/- 0.040% l l
+/- 0.055% l
+/- 0.065% l
Stability
+/- 0.1% of URL for 10 years l
+/- 0.1% of URL for 7 years l
+/- 0.1% of URL for 5 years l
Maximum Working Pressure
250 bar l l
160 bar l l
Turn down
200 : 1 l
100 : 1 l l
Multi sensing
DP, SP l l
Safety
FMEDA report l l l
IEC61508 Certified l l
Response time
< 90ms l l
User Linearisation
10 points signal characteriser l l
FF Function Blocks
AI (Analog Input) l l l
PID (PID control) l l l
Other * l l
FF Link master
Standard l l
Option l
Advanced Diagnostics
Impulse line blockage detection l
Heat trace monitoring l
Alarm output
Contact output l
Multi-Variable
DP, SP, PT, QV and QM l
Wireless Communication
ISA100.11a l
[* Other FB include SC (Signal Characteriser), IT (Integrator), AR (Arithmetic) and IS (Input Selecor) ]
1965
1970
1975
1980
1985
1990
1995
2000
2005
2010
2015
Digital Sensor
DPharp EJX-A
DPharp EJA-EDPharp EJA-AD/P Cell UniΔ Mark II
Analog Sensor
DPharp EJ
Silicon
Resonant
Capacitance
UniΔ
Force
Balance
Capacitance
PiezoResistive
2000 2002 2004 2006 2008 2010
SalesRevenue
1.0
1.3×
2.2×
2.7×
4.0×
4.5×
Subject to change without notice
All Rights Reserved. Copyright © 2012, by Yokogawa Electric Corporation
Represented by:
YOKOGAWA ELECTRIC CORPORATION
World Headquaters
9-32, Nakacho 2-chome, Musashino-shi, Tokyo 180-8750, JAPAN
http://www.yokogawa.com
YOKOGAWA CORPORATION OF AMERICA
2 Dart Road, Newnan, GA 30265-1094, U.S.A.
http://us.yokogawa.com
YOKOGAWA EUROPE B.V.
Euroweg 2, 3825 HD Amersfoort, THE NETHERLANDS
http://www.yokogawa-europe.com
YOKOGAWA ENGINEERING ASIA PTE. LTD.
5 Bedok South Road, Singapore 469270, SINGAPORE
http://www.yokogawa.com/sg/
YOKOGAWA CHINA CO., LTD.
3F TowerD Cartelo Crocodile Building, No.568 West Tianshan Road, Shanghai 200335, China
http://www.yokogawa.com/cn/
YOKOGAWA MIDDLE EAST B.S.C.(c)
P.O. Box 10070, Manama
Building 577, Road 2516, Busaiteen 225, Muharraq, Bahrain
http://www.yokogawa.com/bh/ [Ed : 03/b] Printed in Japan, 205(KP)
are trademark of Yokogawa Electric Corporation for EJX series and EJA-E series Pressure Transmitters, respectively.
Other company names and product names used in this material are registered trademarks or trademarks of their respective owners.

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Yokogawa DPharp Differential Pressure and Pressure Transmitters

  • 2. DPharp Digital Transmitters A new standard for and 2 3 Unmatched precision and real world accuracy. Unconditional long term stability with lowest Total Cost of Ownership (TCO). Multi-sensing functionality. Inherently fail-safe sensor with no undiscovered failure modes. Certified to IEC61508 as standard for single use SIL2 and dual use SIL3. Rugged, yet compact construction. Multiple material options for harsh industrial environment.
  • 3. Pressure Pressure (fc) (ft) Key fc = Frequency Compression ft = Frequency Tension Compression Tension 4 5 WORKING PRINCIPLE DPharp digital sensor uses two single crystal silicon resonators vibrating at their natural frequencies. When pressure is applied, one of the resonators goes into tension, while the other goes into compression mode. The CPU directly counts the sensor output frequencies without any additional A/D conversion. Due to the ex- cellent elastic properties of silicon material, the DPharp sensor exhibits greater linearity and repeatability, with no inherent hysteresis. Resonant sensor also provides a large output signal resulting in greater sensitivity and higher turndown. Unequalled precision and long term stability for your measurements! ARC Statement “ Proprietary sensors that offer real added value to a customer are expected to increase in the market. With the exception of Yokogawa, however, not many suppliers are expected to invest the time and money into development of super-sophisticated new age pressure sensors. . .” Automation Research Corporation (April 1995) MULTI-SENSING DPharp digital sensor has the unique ability to simultaneously measure static pressure and differential pressure. Additionally capsule and housing temperatures are also measured. Multi-sensing platform enables real-time dynamic compensation for unmatched precision and forms the basis for implementation of advanced diagnostics. These information are available through various digital communication protocols; providing additional insight into your process. Multi-sensing functionality with guaranteed accuracy of static pressure signal allows the process to operate with fewer devices delivering reduced lifecycle costs. More really does mean less! HIGH PERFORMANCE Long term, accurate and stable measurement in real world conditions is fundamental to realize reliable and efficient plant operation. Transmitters in the field are subjected to continuous variations of ambient and process temperature, static and over- pressure conditions affecting the accuracy. Long term stability of the transmitter is a measure of performance drift and dependent on the sensor technology. Total accuracy and long term stability determine the recalibration interval for the devices according to the acceptable performance level. Unconditional guarantee of long-term stability under complete range of operating conditions! 0 0 80 140 Freq.(kHz) Percentage of URL 50 fc ft 100 Pressure fc – ft = DP fc + ft = SP Resistance α Temperature fc ft Not necessary DPharp 40% less CAPEX Other 1000 1500 2000 2500 Installation DPharp Transmitter Other Transmitter GP D/P GP D/P Time in service Error(%) Totalaccuracy Acceptable performance Calibration frequency E1: Reference Accuracy of Calibrated Span E2: Ambient Temperature Effects E3: Static Span Effects E4: Static Zero Effects E5: Overpressure Effects Total Accuracy = ± E1 2 +E2 2 +(E3+E4) 2 +E5 2 Long term stability
  • 4. 6 7 SAFETY FIELD DIGITAL SOLUTIONS DPharp is an active pressure sensor, so even with no pressure applied the resonators oscillate at their natural frequencies. Two independent resonators are utilized. If either one or both fail, the transmitter diagnostics detects a capsule error. DPharp sensor is inherently fail-safe with no undiscovered failure modes. A patented reverse calculation algorithm validates internal measurements, calculations and detects any malfunction of the CPU. DPharp transmitters are capable of SIL2 single use and SIL3 redundant use, as standard. Same trans- mitter can be used in control and safety applications which reduces spares inventory and simplifies maintenance. Yokogawa transmitters have undergone complete assessment of hardware for SIL2 and development processes for SIL3 capability to IEC61508 safety standards. Plant safety & reliability assured! Open your eyes to a world of new opportunities… Release the trapped intelligence in your field assets to get greater insight into your process. Yokogawa’s Field Digital Solutions add new value to your instrumentation assets and plant operations by establishing a reliable digital communications infrastructure to effectively utilize the multi-sensing and advanced diagnostic capabilities offered by our intelligent devices. Yokogawa fully supports open standards like HART, FOUNDATION fieldbus, Profibus, ISA100 Wireless* and enabling technologies like FDT/DTM, EDDL to fully ensure customer’s freedom of choice by proven and tested interoperability with process automation and asset management systems. Maximize asset intelligence for operational excellence and reduced lifecycle costs! IEC61508 Certified Safety as Standard, Not an Option! Knowledge Data Measure (* Available on EJX - B series)
  • 5. 8 9 ROBUSTNESS Robustness of installed instrumentation greatly impacts their reliability and thereby plant availability. DPharp transmitters are designed for harsh industrial environments with rugged dual compartment enclosures. Multiple options are available for housing material, painting, wetted parts and bolting to enhance durability. Transmitters use Hastelloy C-276 isolating diaphragms as standard for improved corrosion resistance. DISPLAY CAPABILITY Intelligent indicator clearly displays multiple process variables, user configurable engineering units, communication protocol, output status and diagnostics by alpha-numeric and bargraph display. When using digital protocol, details of instrument model, protocol version and device revision are indicated at start-up. Descriptive alarm messages display abnormalities clearly to simplify troubleshooting. RESPONSE TIME Small form factors and powerful electronics enable a fast response time of 90 milliseconds. Fast response allows the transmitter to react quickly to process changes. Together with superior performance, it enables tighter control and reduces process variability. Fast response is also critical for SIS and anti-surge applications to maintain plant safety and prevent equipment damage. OVERPRESSURE Overpressure event may occur due to incorrect operation of valve manifold or process upsets during plant start-up. DPharp transmitters incorporate an additional overpressure diaphragm to protect the sensor from abnormal pressure surges. Yokogawa has a published overpressure specification, based on DPharp superior sensor characteristics. Pressure Time 90ms EJX Output Pressure input Overpressure diaphragm Capsule body Isolation diaphragm
  • 6. Blockage HeatTraceHeatTrace 10 11 ADVANCED DIAGNOSTICS EJX Impulse Line Blockage Detection (ILBD) and heat tracing diagnostics increase plant availability by enabling predictive maintenance. The fluctuation of differential and static pressure, capsule and ambient temperature signals from the multi-sensing DPharp sensor are continuously monitored. By statistical calculations and comparison to reference condition, the blockage of high, low or both impulse lines can be determined. Flange temperature monitoring provides diagnostics of heat trace or enclosure heater failures. CONTACT OUTPUT EJX Series transmitters provide a unique open collector contact output in addition to the analog signal, enabling easy local alarm annunciation for process measurements or diagnostic triggers. The contact output is included in the safety certification of the transmitter by TÜV. PREMIUM PERFORMANCE EJX Series transmitters deliver premium performance up to 0.025% precision. Industry leading stability guarantee of 0.1% URL for 10 years means reduced maintenance with extended recalibration intervals. EJX differential pressure transmitters also provide a static pressure measurement with 0.2% accuracy enabling greater insight into your process with fewer devices. HIGH PRESSURE CAPABILITY EJX600 series pressure transmitters with direct screwed connection enable compact inline installation. It is suitable for measurement of absolute and gauge pressure up to 10,000 PSI with a superior accuracy and 10-year long term stability. High Alarm Low Alarm Time An alarm is generated. An alarm is generated. Flange temperature High Pressure Side Blockage Low fluctuation on HP side DP (Differential Pressure) HP (Static Pressure H side) LP (Static Pressure L side) Outcome
  • 7. 12 13 MULTI-VARIABLE TRANSMITTER EJX900 multi-variable transmitter successfully integrates the DPharp multi-sensing capability with an onboard flow computer and can be configured for multi-variable (DP, SP, T) or dynamically compensated massflow outputs. Dynamic flow compensation allows the EJX900 multi-variable transmitter to eliminate inherent errors in the DP flow calculations at actual operating condition and to model the flow profile more precisely. Extensive range of primary elements and process fluids are supported. EJX900 is compliant to ISO5167, IAPWS, DIPPR, AGA 3, AGA 8 and ISO12213 Standards. FOUNDATION fieldbus and HART 7 communication protocols are supported. EJX900 also offers ad- vanced diagnostics such as ILBD and flange temperature monitoring. It is IEC61508 certified for safety by TÜV as standard. Maximizing the full potential of DP flow measurement! WIRELESS EJX-B series of transmitters extend the benefits of DPharp digital sensing technology to the wireless world, enabling advanced high precision digital sensing with all other benefits of wireless deployment. Yokogawa EJX-B series is the world’s first wireless device based on customer driven ISA100 Industrial Wireless standards family, offering customers with a secure, reliable and flexible plant wide wireless solution for monitoring and control applications. EJX-B series wireless products enable long distance, stable communication with fast update rates of up to 1 second. They also feature a unique battery pack solution with standard lithium cells for easy of maintenance and reduced operating costs. The ISA100 family of open standards ensures interoperability of Yokogawa’s reliable wireless systems with various third-party products to expand the range of wireless solutions for your plant. The fusion of DPharp and ISA100 leading technologies deliver sustainable lifecycle benefits to meet your most demanding requirements. Building a wireless future to last! Dimensional Stability Compressibility Density Gas Expansion Discharge Coefficient, Reynolds Number Velocity, Viscosity
  • 8. 14 15 TECHNOLOGY EVOLUTION Yokogawa have been manufacturing electronic pressure transmitters for more than four decades. We revolutionized the industry and set a new standard for pressure measurement with the introduction of the DPharp digital sensor in 1991. The superior performance of the new technology enabled exponential market expansion. As of 2011, we have delivered over 5 million DPharp transmitters operating in various industries and applications to the complete satisfaction of our diverse customer base. Yokogawa continues, the digital evolution with the enhancement of our DPharp family to deliver best in class pressure measurement solutions to our esteemed customers. Yokogawa DPharp transmitters achieved over 350% growth in the last decade! MODEL SELECTION EJX-A EJA-E EJA-A Accuracy +/- 0.025% l +/- 0.040% l l +/- 0.055% l +/- 0.065% l Stability +/- 0.1% of URL for 10 years l +/- 0.1% of URL for 7 years l +/- 0.1% of URL for 5 years l Maximum Working Pressure 250 bar l l 160 bar l l Turn down 200 : 1 l 100 : 1 l l Multi sensing DP, SP l l Safety FMEDA report l l l IEC61508 Certified l l Response time < 90ms l l User Linearisation 10 points signal characteriser l l FF Function Blocks AI (Analog Input) l l l PID (PID control) l l l Other * l l FF Link master Standard l l Option l Advanced Diagnostics Impulse line blockage detection l Heat trace monitoring l Alarm output Contact output l Multi-Variable DP, SP, PT, QV and QM l Wireless Communication ISA100.11a l [* Other FB include SC (Signal Characteriser), IT (Integrator), AR (Arithmetic) and IS (Input Selecor) ] 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 2015 Digital Sensor DPharp EJX-A DPharp EJA-EDPharp EJA-AD/P Cell UniΔ Mark II Analog Sensor DPharp EJ Silicon Resonant Capacitance UniΔ Force Balance Capacitance PiezoResistive 2000 2002 2004 2006 2008 2010 SalesRevenue 1.0 1.3× 2.2× 2.7× 4.0× 4.5×
  • 9. Subject to change without notice All Rights Reserved. Copyright © 2012, by Yokogawa Electric Corporation Represented by: YOKOGAWA ELECTRIC CORPORATION World Headquaters 9-32, Nakacho 2-chome, Musashino-shi, Tokyo 180-8750, JAPAN http://www.yokogawa.com YOKOGAWA CORPORATION OF AMERICA 2 Dart Road, Newnan, GA 30265-1094, U.S.A. http://us.yokogawa.com YOKOGAWA EUROPE B.V. Euroweg 2, 3825 HD Amersfoort, THE NETHERLANDS http://www.yokogawa-europe.com YOKOGAWA ENGINEERING ASIA PTE. LTD. 5 Bedok South Road, Singapore 469270, SINGAPORE http://www.yokogawa.com/sg/ YOKOGAWA CHINA CO., LTD. 3F TowerD Cartelo Crocodile Building, No.568 West Tianshan Road, Shanghai 200335, China http://www.yokogawa.com/cn/ YOKOGAWA MIDDLE EAST B.S.C.(c) P.O. Box 10070, Manama Building 577, Road 2516, Busaiteen 225, Muharraq, Bahrain http://www.yokogawa.com/bh/ [Ed : 03/b] Printed in Japan, 205(KP) are trademark of Yokogawa Electric Corporation for EJX series and EJA-E series Pressure Transmitters, respectively. Other company names and product names used in this material are registered trademarks or trademarks of their respective owners.