The Yokogawa EJA110E High-performance Differential Pressure Transmitter is a precise tool made for harsh industrial settings. It uses single-crystal silicon resonant sensor technology to find out how much liquid, gas, or vapour is moving, how high it is, how dense it is, and how much pressure it is under. With a 4-20mA DC output signal, a reaction time of 90ms, and a reference accuracy of 0.055%, it gives accurate data for process control in the chemical, oil and gas, petrochemical, and power generation industries. It can self-diagnose, be configured remotely, and has SIL2/SIL3 safety certifications, which makes it a popular choice among engineers and buying teams around the world.
The EJA110E is part of Yokogawa's EJA-E Series and uses DPharp digital sensor technology. It is a single-crystal silicon resonant sensor that moves at frequencies that are related to the pressure that is applied. This frequency-based method gets rid of a lot of the motion problems that come up with analog sensors. The transmitter takes in differential pressure and turns it into a standard 4-20mA DC signal. It also keeps an eye on static pressure as an extra variable. The end result is a device that can measure two things with just one tool. This makes installation easier and lowers the cost of the hardware.
Here's what buying managers and process engineers need to look at based on the success data:
Stability over the long term: ±0.1% URL over 10 years
The Yokogawa EJA110E High-performance Differential Pressure Transmitter works with both HART and BRAIN transmission systems, so it can be set up remotely from a control room or a handheld device. Its Back-Check self-diagnostic feature checks sensor output constantly and in real time, finding instrument faults even when the process changes. This cuts down on calls for maintenance that aren't needed and helps operations teams tell the difference between a process upset and an instrument failure, which is useful in high-stakes industrial settings.
The Rosemount 3051 is one of the most popular DP transmitters in the world, thanks to its wide range of compatibilities and large installed base. At most, it's accurate to within 0.04% of the span, which is good. The EJA110E's DPharp technology, on the other hand, claims to be stable for 10 years at ±0.1% URL, while the 3051's stability claim is only good for five years. The EJA110E has a measured lifecycle cost benefit for long-cycle process plants that don't need to be recalibrated very often.
Honeywell's STD800 is designed to work with smart plants and has good wireless connection choices. It has similar accuracy specs, but it is mainly aimed at younger greenfield sites with more advanced digital infrastructure. On the other hand, the EJA110E works well with both old HART systems and new DCS settings. Because it works with older systems, it can be used to improve facilities that are already there without having to do a lot of wiring or make changes to the control system.
TÜV Rheinland and EXIDA have confirmed that the EJA110E has SIL2 certification for single units and SIL3 certification for multiple setups. There aren't many transmitters in this price range that already have working safety approval from a third party. This makes approval a lot easier for plant engineers who need to meet the standards of IEC 61508:2010 or IEC 61511:2004.
Before mounting, check that the process link is facing the right way in relation to the flow direction and that the temperature at the installation site stays within the acceptable range. The transmission can be set up in both direct-mount and remote-seal modes. For service that is likely to rust, use the four-bolt process connection with 316L stainless steel flanges. Make sure the impulse lines are sloped correctly so that liquid doesn't build up in gas service or gas pockets form in liquid service. It's also important to ground the housing correctly for HART communication to work properly.
A verified pressure source that can be tracked back to national standards should be used for the first test. To get to the setup screen, connect a HART communicator or a PC that has Yokogawa's FieldMate software on it. Choose the lower range value (LRV) and the upper range value (URV) based on the pressure you want for the process. The Yokogawa EJA110E High-performance Differential Pressure Transmitter can be set to zero without taking it out of service. Yokogawa suggests that you recalibrate your equipment every five years under normal operating conditions. However, your process may need to be checked more often.
The double-seal design that meets ANSI/ISA 12.27.01 keeps process fluids from getting into the electronics inside. Outside checks should be done on a regular basis to see if the process flanges are corroded, the cable glands are still in place, and the vent or drain plugs are clear. By using HART, firmware updates can be made from afar, without having to go to the field. For high-temperature or reactive chemical service, Teflon-lined fill fluid options are available. This means that the diaphragm doesn't need to be replaced as often.
If you buy from an approved distributor, your warranty rights will be protected, and you will get a real instrument with full paperwork that can be traced back to its source. Shaanxi Honglixing Electronic Technology Co., Ltd. is a licensed Yokogawa provider that works with businesses in the chemical, power, pharmaceutical, and oil and gas industries. You can use Yokogawa's global service network and get calibration certificates and material traceability reports that are needed in regulated industries if you buy through verified channels.
The price of the EJA110E depends on the pressure range code, the materials that are wet, the output protocol, and the approval requirements. Standard configurations usually ship two to four weeks after they are authorized to be in stock. Orders in bulk for instrumentation projects that affect the whole plant may be able to get volume discounts and faster delivery times. Send your tag list and process data sheet to our team so that we can give you a quote that is tailored to your project. We also offer complete documentation packages that include testing certificates, material certifications, and paperwork for getting permission to work in dangerous areas.
All EJA-E Series transmitters from Yokogawa come with a standard warranty. Purchasers through Shaanxi Honglixing also get help with setting up FieldMate, on-site setup, and access to original OEM repair parts. Our after-sales engineering team has worked with instruments for more than ten years and can help you with choosing, installation, and long-term technical issues.
The Yokogawa EJA110E High-performance Differential Pressure Transmitter has been used successfully in power plants, petrochemical plants, oil and gas wellheads, and water treatment plants. With a 100:1 turndown ratio, a single emitter can cover a wide measurement range, which means you don't have to keep as many extras on hand. The 10-year stability number is the main reason why plants in Southeast Asia and the Middle East switched from older analog receivers to the EJA110E and reported lower calibration costs.
The EJA110E's HART output can connect to asset management tools like Yokogawa's Plant Resource Manager (PRM), which lets real-time diagnostic data be used to plan preventative maintenance. If a company moves toward condition-based maintenance programs, having a tool that actively reports its own health state is a direct practical benefit.
The EJA110E's long-term stability means that maintenance tasks are done less often, which saves money on technician time and keeps processes running smoothly. Its long-lasting wet materials make it last longer in harsh environments. Over the course of an asset's 10-year lifecycle, the lower frequency of recalibration and shorter downtime lead to measurable savings in the total cost of ownership compared to instruments that need to be calibrated once a year.
There are many different types of process control that can use the Yokogawa EJA110E High-performance Differential Pressure Transmitter. It has been tested and proven to work in the field. It has a single-crystal silicon sensor, a response time of 90ms, SIL2/SIL3 safety standards, and stability for 10 years, which makes it a good choice for engineers who need accurate instruments that will last. Whether you are upgrading an existing system or choosing instruments for a brand-new project, the EJA110E gives you measurable performance at costs that you can handle over its lifetime. Shaanxi Honglixing Electronic Technology Co., Ltd. helps with the whole buying process, from choosing the right technology to delivering and setting it up.
The EJA110E is rated for ambient temperatures from -40°C to +85°C (-40°F to +185°F). Process temperature limits depend on the fill fluid and remote seal configuration selected. Standard silicone fill fluid covers most general-purpose applications, while high-temperature fill fluids support elevated process conditions in steam or heat transfer services.
Yokogawa's published long-term stability specification of ±0.1% URL over 10 years supports extended calibration intervals. Under normal operating conditions, recalibration every three to five years is typical. However, specific regulatory requirements or process criticality may require more frequent schedules. The transmitter supports zero calibration adjustment in the field without removal from service.
Yes. Wetted parts are available in 316L stainless steel, Hastelloy C-276, and tantalum to resist aggressive process fluids. Teflon-coated diaphragms and fill fluid options further extend compatibility with reactive chemicals. For highly corrosive applications, remote seal configurations isolate the transmitter body from the process entirely.
The Yokogawa EJA110E High-performance Differential Pressure Transmitter is stocked and sold by Shaanxi Honglixing Electronic Technology Co., Ltd. (HLX). It comes with a full guarantee and all the paperwork you need to use it. We offer reasonable prices, fast shipping, and hands-on expert support as an authorized distributor with more than ten years of experience in instrumentation. Send us your question today at sales01@hlx8.com, whether you need a single unit or a lot of them for a plant project.
1. Yokogawa Electric Corporation. EJA110E Differential Pressure Transmitter Product Manual. Yokogawa, 2022.
2. International Electrotechnical Commission. IEC 61508: Functional Safety of Electrical/Electronic/Programmable Electronic Safety-related Systems. IEC, 2010.
3. International Electrotechnical Commission. IEC 61511: Functional Safety — Safety Instrumented Systems for the Process Industry Sector. IEC, 2004.
4. Bela G. Liptak. Instrument Engineers' Handbook: Process Measurement and Analysis, Fourth Edition. CRC Press, 2003.
5. American National Standards Institute / ISA. ANSI/ISA-12.27.01: Requirements for Process Sealing Between Electrical Systems and Flammable or Combustible Process Fluids. ISA, 2011.
6. Andrew Jamieson. Introduction to Instrumentation, Sensors, and Process Control. Artech House, 2006.
Our customers’ satisfaction speaks for our quality — contact us to experience the same reliable service.