Description
Baumer AFI5 is an advanced conductivity/TDS transmitter with high-resolution signal processing, multi-range capability, and superior temperature compensation. Designed for process plants requiring continuous, reliable water-quality monitoring, it supports 2-/4-electrode cells, Modbus communication, and dual analog outputs. Ideal for RO/DM units, CIP skids, ETP/STP, and utility water systems.
🔧 Baumer AFI5 — Key Technical Data & Selection Parameters
| Parameter | Specification / Details |
| Measurement Range | 0…2000 µS/cm, 0…20 mS/cm, 0…200 mS/cm (sensor-dependent) |
| TDS Measurement | Programmable TDS factor (0.30–1.00) |
| Electrode Type | 2-electrode / 4-electrode conductivity cells |
| Cell Constants | K = 0.1 / 1.0 / 10.0 |
| Temperature Compensation | Automatic via PT100/PT1000/NTC; configurable algorithms |
| Accuracy | ±1% of reading (depending on sensor & conductivity range) |
| Process Temperature | –20 °C to +130 °C (electrode-dependent) |
| Process Pressure | Up to 25 bar (high-pressure-rated sensors) |
| Outputs | 4–20 mA (1 or 2 channels), pulse, relay alarms |
| Digital Communication | Modbus RTU (RS485) available |
| Display | High-contrast LCD with multi-parameter indication |
| Power Supply | 24 VDC loop-powered or 110–230 VAC versions |
| Housing | IP65 / IP67 field-mount enclosure |
| Calibration | 1-point / 2-point / cell constant verification |
| Materials | SS316L / PVDF / Graphite sensor options |
| Typical Applications | RO permeate, DM water, CIP return, boiler feed, cooling towers, ETP/STP, chemical dosing, beverage & pharma utilities |





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