Description
The Yokogawa FLXA21 is an advanced, modular 2-wire liquid analyzer designed for continuous industrial process monitoring and measurement. Depending on the installed measurement modules, it supports single or dual-sensor configurations.
- Brand: Yokogawa
- Series: FLEXA Series (FLXA21)
- Product Type: 2-Wire Dual-Channel Liquid Analyzer / Transmitter
- Supported Measurements:
- pH / ORP (Oxidation-Reduction Potential)
- Contacting Conductivity (SC)
- Inductive Conductivity (ISC)
- Dissolved Oxygen (DO)
- Enclosure / Housing: Rugged industrial field-mount or panel-mount housing options (commonly robust plastic or stainless steel configurations)
- Display: User-friendly, high-contrast backlit LCD touch screen with intuitive Quick Setup guide menus
- Communication Outputs: Standard 4–20 mA loop power with bi-directional HART digital communications; optional Foundation Fieldbus or PROFIBUS PA protocols available depending on specific model code configuration.
► Operational Features & Capabilities
- Dual-Sensor Flexibility: Can connect up to two detectors simultaneously (either same-type for redundant/high-precision duplex loops, or mixed parameters), lowering overall installation and hardware costs.
- Advanced Self-Diagnostics: Continuously monitors sensor health parameters including glass impedance, asymmetric potential, slope, electrode wear, coating, breakage, or dry liquid levels.
- Maintenance Forecasting: Stores historical calibration data and tracks metrics to predict upcoming maintenance or sensor replacement schedules.
⚠ Safety & Handling Guidelines
- Power Isolation: Always de-energize external loop power and isolate associated loops before opening the enclosure or servicing internal wiring terminals in hazardous environments.
- ESD Precautions: The internal circuit boards contain static-sensitive components. Use proper electrostatic discharge (ESD) wrist straps and grounded workstations when handling or replacing modules.
❓ Frequently Asked Questions (Q&A)
- Q1: Can the FLXA21 handle different types of measurements at the same time?
- A1: Yes, with a dual-input module setup, it can process measurements from compatible combinations of pH/ORP, conductivity, or dissolved oxygen sensors.
- Q2: What power supply does the 2-wire FLXA21 require?
- A2: It is loop-powered, typically operating on standard industrial DC power supplies integrated into the 4–20 mA current loop wiring scheme.
