Reliable Yokogawaa Pressure Transmitter for Accurate Fluid Monitoring

• Type: Differential Pressure Transmitter
• Structure Type: Strain Gauge Pressure Transmitter
• Measuring Medium: Liquid
• Model NO.: yokogawaaa
• Accuracy Grade: 1.0G
• Pressure range: 0～1.5kPa
• IP Rating: IP67
• Certification: CE
• Customized: Customized
• Product Name: Emerson Rosemount 3051dp Differential Pressure Tra
• Model: Rosemount 3051dp (Differential Pressure Transmitte
• Type Category: Differential Pressure Measurement
• Warranty: One Year
• Accuracy: ±0.04% of Url (Standard), Optional ±
• Output Signal: 4-20 Ma Analog (Hart Protocol 7), Optional Foundat
• Power Supply: 10.5...42 V DC (Loop-Powered Models); 18...32 V DC
• Overpressure Limit: up to 2X Full Scale (Depends on Model)
• Process Connections: ½-Inch NPT Female, Optional Flange (ANSI/Di
• Material Options: 316L Stainless Steel
• Environmental Rating: IP67, NEMA 4X / IP67, Optional IP68 (Submersible M
• Operating Temperature: -40°C to +121°C (Standard), Extended Range
• Response Time: < 100 Ms
• Vibration/Shock Resistance: IEC 60751 Class C, Mil-Std-202g (Vibration), Mil-S
• Long-Term Stability: <0.1% Url/Year (Typical)
• Transport Package: Support Air/Land/Sea Transportation
• Specification: 35cm*30cm*30cm*
• Trademark: Emerson Rosemounte
• Origin: China
• HS Code: 9026201090
• Production Capacity: 1000

Product Description

Reliable yokogawaaaaa Pressure Transmitter for Accurate Fluid Monitoring

This original yokogawaaa OpreX DPharp pressure/differential pressure transmitter (EJA-E / EJX S Series) is a premium industrial field instrument engineered for precise, long-term fluid monitoring across global process industries, including oil & gas, refineries, power plants, chemical factories, and water treatment facilities. Built on yokogawaaa's proprietary single-crystal silicon resonant DPharp sensor technology with over 30 years of industrial validation, it delivers ultra-stable pressure measurement for liquid, crude oil, chemical solvent, water, steam and mixed fluid media.
Perfectly matching fluid monitoring demands of large energy operators like PDVSA (Petróleos de Venezuela), the transmitter accurately tracks pipeline fluid pressure, tank liquid level, flow differential pressure, and medium density. It converts physical pressure signals into standard 4–20mA+HART digital output, enabling seamless real-time data transmission to DCS, PLC and control room systems for closed-loop process regulation, energy optimization and safety interlock controlyokogawaaa E....
Core Advantages for Fluid Monitoring

1. Industry-Leading Measurement Precision & Long-Term Stability
Ultra-high reference accuracy up to ±0.04% FS, eliminating fluid flow/level calculation deviation for custody transfer metering
Outstanding long-term stability: only ±0.1% drift over 10–20 years, drastically cutting routine calibration frequency and maintenance costs
Ultra-fast 90ms response time, capturing instantaneous fluid pressure fluctuations in dynamic pipeline systems
Multi-sensing function: simultaneously measure differential pressure, static line pressure and sensor temperature for dynamic error compensationyokogawaaa E...
2. Robust Construction for Harsh Fluid Working Conditions
Standard wetted parts: SUS316L stainless steel diaphragm & process housing; optional Hastelloy C, Monel for corrosive crude oil, acid & alkaline fluids
Wide operating temperature range: adapts to high-temperature furnace fluid loops and low-temperature outdoor crude storage tanks
IP68 dust & waterproof enclosure, resistant to moisture, dust and splashing fluid on-site
High overload & static pressure resistance, compatible with ANSI Class 150 flange mounting for large-diameter fluid pipelines
3. Global Hazardous Area Explosion-Proof Certification
Supports full international explosion-proof standards for flammable fluid environments (crude oil, gasoline, chemical solvents):
IECEx / ATEX Ex ia IIC T5 / T6 intrinsic safety (0/1 Zone gas hazardous locations)
SIL 2 / SIL 3 functional safety certification, mandatory for refinery & oil tank farm fluid safety monitoring 
Fully compliant with PDVSA's site safety specifications for Venezuelan oil & gas facilitiesyokogawaaa E...
4. Flexible Digital Communication & Easy Operation
Dual signal output: 4–20mA analog + HART digital communication; optional FOUNDATION Fieldbus / PROFIBUS PA
Built-in color backlit graphic local display: on-site read fluid pressure, level and diagnostic data without handheld communicator
Complete self-diagnostic system: automatically alert fluid blockage, diaphragm damage or circuit faults to prevent abnormal monitoring data   
Local Parameter Setting (LPS): zero/range calibration directly on transmitter without dismounting from fluid pipelines

Core Sensor	yokogawaaa DPharp single crystal silicon resonant sensor
Measurement Accuracy	±0.04% ~ ±0.055% FS
Long-Term Stability	±0.1% span per 10–20 years
Response Time	≤90ms
Output Signal	4–20mA DC + HART; optional FF / PROFIBUS PA
Wetted Material	SUS316L standard, Alloy C / Monel optional
Explosion Proof Grade	eEx ia IIC T5 / T6 Ga (IECEx/ATEX)
Safety Grade	SIL 2 / SIL 3 certified

Company Profile

Company Introduction

KeRui (weifang) Automation Equipment Co., Ltd.specializes in industrial automation instrument development, production and sales, technical services, and supportingequipment supply of specialized companies. The main products are flow meters, level meters, temperature meters,pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC)DCS distributed control systems,and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco,textile, dyeing, and other felds.

Display of company strength

KeRui (Weifang) Automation Equipment Co., Ltd. has maintained a cooperative relationship with Rosemount for 15 years, and our purchase quantity has reached 20,000 units.
We supplied the tuning fork level gauge to the Rosemount factory, and it has been well-received by the Beijing factory. We have cooperated with Yokowaga and maintained a cooperative relationship for 8 years, and our purchase quality has reached 7000 units.
The companies we have cooperated with:
1. Awarded "Outstanding Supplier by Yanchang Petroleum in 2008
2. In December 2012, our company was awarded the "Excellent Equipment Service Award" for the expansion project of units 6 and 7 of the Guangdong Guohua Yuedaishan Power Plant
3. Awarded "Outstanding Supplier by Yaxing Group in 2013
4.200 transmitters for Haihua Group's ethylene debottlenecking transformation project in 2015.
5. In 2018, we were rewarded as a National Nuclear Power Instrumentation Industry Measurement and Testing Alliance member.
6.160 transmitters and 20 electric actuators for the Shandong Laigang Yongfeng Steel expansion project in 2019
7. In 2022, Jinneng Chemical (Qingdao) Co., Led/ Jinneng 2x450,000 tons/ year high-performance polypropylene project (newly built), equipped with 460 transmitters from our company.
8. In 2022, Shandong Qinghe Chemical Technology Co., Ltd.'s hydrogen peroxide method epoxy propane device and supporting hydrogen peroxide device expansion project used 253 pressure transmitters.
9. In 2022, the Wanhua Chemical HTN project NPG installed 320 transmitters and 50 sets of valve positioners.

FAQ

Common Problem

Q1: How long will it take you to give me the reply?
A: We will reply to you as soon as we see the information

Q2: What is the delivery time?
A: Our delivery time is within 3- 7 days after we get your payment; for large quantity mass orders, the time should be confirmed again with you

Q3: How about your package?
A: Do not worry about the package. We have a lot of experience in packing, and all our packages are wooden case packages.

Q4: How about the payment terms?
A: You can choose T/T.

Q5: Do you provide samples?
A: Yes, we have materials in stock to help you get the samples as soon as we can.

Q6: What is the MOQ?
A:1PC.

Q7: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices are available with larger orders.

Q8: Why choose us?
A: We have a perfect customization, not only to provide you with quality products, but also to have a professional customer service team available at any time to provide you with support. We pay more attention to establishing a long-term cooperative relationship with you to achieve continuous business growth.

Q9: How can we guarantee quality?
A: We have strict requirements on the quality of our products, and we will conduct a final inspection of our products when we ship them.