Original and Brand-New Yokogawa Eja Pressure Transmitter LCD Display with Circuit Board

• Customization: Available
• Screen Size: ≤17"
• Application: Indoor, Pressure Transmitter
• Model NO.: EJA Pressure Transmitter LCD Display
• Aspect ratio: 16:9
• Feature: LED Backlight Display
• Optimum Resolution: 1920x1080
• Type: TFT
• Widescreen: Widescreen
• Response Time: 30ms
• 3D: 3D
• Interface Type: VGA
• Place of Origin: China
• Brand Name: Yokogawa
• Product Name: LCD Display
• Warranty: 1 Year
• Customized Support: OEM, ODM, Obm
• Material: Plastic
• Display Type: LCD with Backlight
• Resolution: (Specify Resolution)
• Backlight: Yes/No
• Power Supply: DC/AC, Voltage Range
• Current Consumption: (Specify Current in Ma)
• Humidity: Operating - Storage (%Rh)
• Output Signal: 4-20 Ma, 0-10 V
• Dimensions: (Length X Width X Height in mm/in)
• Weight: (Specify in G/Lb)
• Transport Package: Original
• Specification: 20cm*10cm*15cm
• Trademark: YOkOGAWA
• Origin: China
• HS Code: 9026900090
• Production Capacity: 100/Month
• Package Size: 20.00cm * 15.00cm * 10.00cm
• Package Gross Weight: 1.000kg

Product Description

 

Product Description

Comprehensive Technical Introduction: LCD Display System of Yokogawa EJA Series Pressure Transmitters
(1). Functional Overview & Design Philosophy
The integrated LCD display module in Yokogawa EJA Series pressure transmitters (e.g., EJA110E/EJA430E/EJA530E) transforms raw process data into actionable insights through real-time visualization. Designed for harsh industrial environments, it serves as a primary local interface for operators, complementing remote communication protocols like HART, BRAIN, Fieldbus, or PROFIBUS PA. Its core functions include
Real-time Parameter Display: Shows primary variables (pressure, differential pressure, absolute pressure), units (kPa, psi, bar, MPa), and percentage output.
Diagnostic Alarming: Visual alerts for over-range, sensor faults, or communication errors.
Configuration Support: Enables on-site zero/sensor calibration and alarm threshold setting via Local Parameter Setting (LPS).
Process Op1. Physical Attributes
Display Type: Monochrome LCD with high-contrast backlight (user-activated or auto-triggered in low light).
Viewing Range: 180° horizontal/vertical visibility ensured by anti-glare coating.
Environmental Robustness:
Operating Temp: -40°C to +85°C (extended to -30°C to +80°C when LCD installed) .
Protection: IP67-rated against dust/water ingress; corrosion-resistant window (polycarbonate or stainless steel) .
Mounting Flexibility: Rotatable in 90° increments for optimal viewing angle during vertical/horizontal installation .

Detailed Photos

2. Measurement Accuracy & Resolution
Accuracy: Tied to transmitter's base performance (±0.055% span standard; ±0.04% with /HAC option) .
Resolution:
Pressure: ±0.01% of calibrated span.
Loop Current: 0.01 mA resolution for 4-20 mA output monitoring.
Stability: ±0.1% URL drift per decade, minimizing recalibration needs 

Product Parameters

Function/Description	Reference
Process Variable (PV)	Displays real-time measured differential pressure, gauge pressure, or absolute pressure value.
Engineering Units	Shows configured units (e.g., kPa, MPa, bar, psi, %).
Output Current (%)	Indicates the analog output current as a percentage (4-20 mA range).
Diagnostic Messages	Alerts for faults (e.g., sensor error, over-range, communication failure).
Tag Number	Displays user-assigned device identification tag.
Alarm Status	Icons for high/low alarms or hardware failure warnings.
Communication Mode	Shows active protocol (e.g., HART, BRAIN).
Error Codes	Specific codes (e.g., ER01-ER07) for troubleshooting sensor/electronics issues.
Display Type	Monochrome LCD with backlight.
Resolution	Up to 5 digits + decimal point for PV values.
Viewing Angle	Adjustable by rotating the transmitter housing (0-90°).
Operating Temperature	Standard: -40 to +85°C (-40 to +185°F); consult manual for extreme conditions.
Display Rotation	Supports 0°, 90°, 180°, 270° orientation.
Local Parameter Setting (LPS)	Allows configuration of 9 key parameters (e.g., zero adjustment, damping, alarm setpoints) without external tools.
Navigation Buttons	Physical keys for menu access, parameter adjustment, and confirmation.
Write Protection	Prevents unauthorized changes via password or hardware lock.

3. Power & Compatibility
Voltage Range: 10.5-42 V DC (standard); 10.5-30 V DC for intrinsic safety applications.
Power Draw: ≤3 mA during active display, reducing load impact (<27 mW) .
(3). Operational Workflow & Advanced Features
1. Configuration via LPS (Local Parameter Setting)
Users adjust parameters without external tools:
Zero Adjustment: Compensates for installation offsets (<2 min procedure).
Damping Control: Toggles response time (90 ms-64 sec) to filter noise .
Unit Selection: Cycles through kPa, MPa, psi, bar, % .
2. Diagnostic Capabilities
Status Flags: Icons for "Overlimit," "Sensor Error," or "Comm Fault."
Predictive Maintenance: Stability metrics (±0.1%/10y) inform sensor health .
3. Safety & Compliance
Functional Safety: SIL 2/3 certified (TÜV/Exida) for critical processes 
Explosion Protection: ATEX/IECEx compliance for Zone 1/21 hazardous areas .
(4). Application-Specific Customization
1. Model-Specific Implementations
High-Pressure (EJA440A/EJA530E): Displays up to 50 MPa (/HG option) with overload alerts .
Level/Density (EJA210A): Shows level (mm/in) or density (g/cm³) via flange-mounted sensors .
2. Integration with Control Systems
Protocol Synergy: LCD mirrors data from BRAIN/HART communications; Fieldbus models show multiple variables simultaneously 
(5). Maintenance & Best Practices
Calibration: On-screen guided zero trim during power cycles.
Failure Modes:
Blank Screen: Check terminal voltage (>10.5 V DC) or replace fuse.
Pixel Degradation: Avoid solvents; clean with dry cloth .
Lifecycle: 100,000+ hours MTBF under rated conditions .
(6). Comparative Advantages Over Legacy Systems

	EJA LCD	Traditional Analog Gauges
Accuracy	±0.055% span	±1-2% FS
Data Richness	Multi-variable + diagnostics	Pressure-only
Setup Time	Minutes (LPS)	Hours (mechanical adjust)
TCO	10-year stability reduces recalibration	Frequent recalibration costs

(7). Selection Guide
Environment: Choose IP67 + extended temp (-40°C) for outdoor/refinery use.
Safety: Specify ATEX version (Code /NF) for chemical plants.
Range: EJA430A (0-14 MPa); EJA530E (0-50 MPa with /HG) 
Output: Opt for 1-5V HART (Code Q) if LCD must operate below 16.6 V DC .
Conclusion: The EJA's LCD module exemplifies Yokogawa's fusion of precision engineering and user-centric design, delivering uncompromised readability, configurability, and resilience. Its role extends beyond monitoring-enabling predictive maintenance, reducing downtime, and ensuring compliance in SIL 2/3 loops. For protocol-specific details (e.g., PROFIBUS PA interactions), consult GS 01C31T04-01EN manuals

Company Profile

KeRui (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales,technical services, and supporting equipment 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 fields.
 

Packaging & Shipping

FAQ

Q: How long will you give me the reply?
A: We will reply to you as soon as we see the information.
Q: What is the delivery time?
A: Our delivery time is within 3-7 days after we get your payment;
for large qty mass orders, the time should be confirmed again for you.
Q: How about your package?
A: Do not worry about the package, we have rich experience in packing, and all our package is wooden case package.
Q: How about the payment terms?
A: You can choose T/T.
Q: Do you provide samples?
A: Yes, we have materials in stock to help you to get the samples as soon as we can.
Q: What is the MOQ?
A:1PC.
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with more bigger size orders.