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Yokogawa EXAPH202 Analytical Transmitter Modules
Yokogawa EXAPH202 Analytical Transmitter Modules
Brand/Manufacturer: Yokogawa
Order Number: EXAPH202
Type: Analytical Transmitter Modules
Country of Origin: Sweden
Condition: Original Brand
Lead Time: Available in stock
Payment Term: 100% TT In Advance
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Description
The Yokogawa EXA PH202, also cataloged as the EXA PH202 2-Wire pH/ORP Analyzer, operates as a dedicated hardware component for electrochemical potential evaluation, real-time hydronium ion activity tracking, and localized transmitter signal processing within industrial loop networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | EXA PH202 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 1.60 kg standard enclosure baseline mass |
| Dimensions | Standard field-mount housing dimensions |
| Operating Temp | -10 to +55 deg C (14 to +131 deg F) ambient range |
| Power Consumption | 24 VDC loop-powered execution bounds |
| Measurement Range | -2 to 16 pH | -1500 to 1500 mV ORP |
| Temperature Range | -30 to +140 deg C (-22 to +284 deg F) sensor tracking window |
| Output Signal | 4-20 mA DC loop-powered, isolated from input |
| Accuracy | ±0.01 pH | ±1 mV ORP |
| Temperature Compensation | Pt100, Pt1000 standard RTD elements |
| Communication Protocols | HART, PROFIBUS-PA, FOUNDATION Fieldbus |
| Protection Class | IP65 ingress protection rating |
| Product Type | Analytical Transmitter Modules |
Process Control & DCS Instrumentation Rails
- 4-20 mA HART Loop Protocol and FOUNDATION Fieldbus Connectivity The analyzer utilizes an integrated hybrid modem assembly to overlay digital communication frames onto standard analog loops. Field operators can pull parametric diagnostic tables, structural calibration offsets, and secondary temperature variables directly via the 4-20 mA HART loop protocol, or bind the module natively into decentralized FOUNDATION Fieldbus and PROFIBUS-PA fieldbus network topologies.
- Channel-to-Channel Isolation and Cold Junction Compensation Complete internal galvanic separation barriers isolate the high-impedance pH/ORP glass electrode inputs from the loop power output tracks. This topology suppresses dynamic plant ground loops and stray electrostatic field interferences, protecting the low-voltage analog conversion pathways and keeping the baseline processing steps true to the absolute ±0.01 pH precision matrix.
Frequently Asked Questions
Q: How does the internal temperature compensation framework handle sensor calibration over extended temperature ranges?
A: The analyzer logic scans continuous resistance changes from an embedded Pt100 or Pt1000 element located within the electrode body. It references Nernst equation correction curves automatically at the physical hardware tier, neutralizing measurement drift caused by temperature variations across the full -30 to +140 deg C process boundary.
Q: What are the installation limitations regarding hot-swapping or disconnecting the sensor cable loop while active?
A: The analyzer is powered entirely via the 24 VDC analog signal loop. Disconnecting the sensor input lines while the loop is active will not destroy the solid-state logic, but it will open the loop and force the DCS interface to report a permanent high-scale error state.
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Testimonials
Fast Delivery, Excellent Quality
We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.
- Sarah Johnson
We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.
- Sarah Johnson
Reliable Partner for Original Parts
Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
- David Smith
Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
- David Smith
Professional Service with After-Sales Support"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
Trusted Source for Industrial Automation Spares
We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson
We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson