Yokogawa FLXA202-D-D-D-CD-P1-NN-A-N-LA-N-NN 2-Wire Analyzer
A single-input pH/ORP FLXA202 with high anti-corrosion housing and intrinsically safe US/Canada configuration.
Product Identification
FLXA202-D-D-D-CD-P1-NN-A-N-LA-N-NN is a Yokogawa 2-wire pH/ORP analyzer with cast-aluminum high anti-corrosion coating. Its -CD type code identifies the intrinsically safe configuration for the United States and Canada.
This build has one analog pH/ORP input, no second sensor input and a 4–20 mA HART output. Hazardous-area installation must follow the applicable control drawing, entity parameters and enclosure conditions.
Engineering Data
| Manufacturer | Yokogawa Electric Corporation |
|---|---|
| Model | FLXA202-D-D-D-CD-P1-NN-A-N-LA-N-NN |
| Product Family | FLEXA FLXA202 |
| Housing | Cast aluminum with high anti-corrosion coating |
| Display | Anti-glare LCD with touch operation |
| Protection Type | Intrinsic safety for United States and Canada |
| Temperature Class | T4 under the applicable approval conditions |
| First Input | Analog pH/ORP |
| Second Input | Not fitted |
| Output | 4–20 mA with HART |
| Language Set | English plus 11 additional display languages |
| Country Code | Global except Japan |
Functions
- Performs loop-powered pH or ORP measurement with sensor calibration and temperature compensation.
- Provides touchscreen configuration, quick setup, sensor wellness and diagnostic log functions.
- Communicates the process value and device information through the configured HART current loop.
- Uses a corrosion-resistant enclosure construction for demanding process environments.
Applications
- pH or ORP measurement loops located in approved hazardous-area installations.
- Chemical and water-treatment services requiring high anti-corrosion enclosure coating.
- HART-integrated analytical loops with a compatible barrier or isolator.
- Single-sensor replacement projects where the complete -CD approval configuration must be retained.
Lifecycle
- Keep the complete model code, control drawing, barrier data and area classification together in the loop file.
- Record sensor type, temperature element, calibration history, HART tag and output mapping.
- Inspect coating, seals, cable entries and grounding during each planned maintenance interval.
- Treat any approval, housing or sensor-module change as an engineered loop modification.
FAQ
FLXA202-D-D-D-CD-P1-NN-A-N-LA-N-NN: Which hazardous-area documents are needed before quotation?
Provide the area classification, installed control drawing, barrier or isolator model, entity parameters and cable-entry details.
FLXA202-D-D-D-CD-P1-NN-A-N-LA-N-NN: Can a general-purpose -AB analyzer replace this -CD version?
No direct substitution should be made because the intrinsic-safety approval and installation controls would change.
FLXA202-D-D-D-CD-P1-NN-A-N-LA-N-NN: What should be checked when retaining the existing pH/ORP sensor?
Confirm sensor approval, temperature element, cable system, entity compatibility and process-wetted suitability.
FLXA202-D-D-D-CD-P1-NN-A-N-LA-N-NN: How is the high anti-corrosion housing relevant to replacement?
Changing the housing coating can reduce suitability for the site atmosphere, so the environmental basis must be reviewed before accepting another suffix.
FLXA202-D-D-D-CD-P1-NN-A-N-LA-N-NN: Which tests should close the replacement work?
Complete calibration, temperature agreement, loop-current and HART checks, alarm verification and the site intrinsic-safety inspection record.
