Product Overview
Endress+Hauser FMA90‑AA11B315B0+AK FlexView is a field‑mounted multi‑function control unit for water‑wastewater and process‑industry measurement tasks. It receives signals from radar, ultrasonic or hydrostatic level sensors, computes open‑channel flow via integrated Q/H characteristic curves, performs pump interlock control and historical data logging. The +AK suffix denotes matching accessory kit for field installation. Equipped with intuitive glove‑operable touch screen, it supports local visualization, on‑site parameter setup and remote access over Wi‑Fi or Modbus TCP. Widely used for new‑site deployment as well as spare‑part replacement for existing water‑treatment automation systems.
Series
FlexView FMA90 is Endress+Hauser universal controller family for level and open‑channel flow applications. Three housing variants are available: field wall‑mount, DIN‑rail cabinet mount and panel‑mount versions. The series supports multi‑sensor input, pre‑programmed hydraulic flume / weir profiles, pump‑control logic and cybersecurity compliance per IEC 62443 standardEndress+Ha…. Different order code combinations define housing type, I/O configuration, communication options and included accessory kits.
Product Features
‑ 3.5‑inch color touch display, operable with protective work gloves for field operation ‑ Dual sensor input channels: 4‑20 mA and HART compatible for radar, ultrasonic, hydrostatic level probes ‑ Built‑in open‑channel flow calculation library for flumes, weirs and open‑channel pipelines ‑ Advanced backwater‑effect compensation using dual‑sensor measurement ‑ Multiple output options: analog outputs, relay switch outputs, open‑collector digital outputs ‑ Integrated data logging for level, flow and totalized volume values ‑ Modbus TCP and Wi‑Fi interface for remote parameterization and data access ‑ IP65 / NEMA 4X rugged polycarbonate field housing for outdoor installation ‑ Guided commissioning workflow with automatic sensor detection for fast setup ‑ Includes +AK installation accessory kit for complete field mounting preparation ‑ ATEX / CSA hazardous‑area certification options available
Product Parameters
‑ Order Code: FMA90‑AA11B315B0+AK ‑ Power Supply: 100‑230 V AC or 10.5‑32 V DC ‑ Sensor Inputs: 2 × 4‑20 mA / HART ‑ Display: 3.5‑inch TFT color touch screen ‑ Communication: Modbus TCP, Wi‑Fi ‑ Outputs: 2 analog outputs, multiple relay & open‑collector digital switch outputs ‑ Protection Rating: IP65, NEMA 4X (field housing) ‑ Operating Ambient Temperature: ‑40 °C ~ +60 °C ‑ Storage Temperature: ‑40 °C ~ +85 °C ‑ Relative Humidity: 5‑95 %, non‑condensing ‑ Mounting: Wall‑mount field housing ‑ Approvals: ATEX, CSA, EAC, IEC 62443 cybersecurity compliance ‑ Included: +AK installation accessory kit
Product Specifications
‑ Form Factor: Rugged wall‑mount field enclosure ‑ Supported Sensors: Radar, ultrasonic, hydrostatic level transmitters with 4‑20 mA / HART ‑ Calculation Functions: Level linearization, open‑channel flow, volume totalizer, pump control logic ‑ Data Storage: On‑board historical data logging ‑ Configuration: Local touch‑screen setup, remote Wi‑Fi / Modbus access ‑ Housing Material: Polycarbonate ‑ Compatibility: E+H FMR‑series radar, FMX‑series hydrostatic, and third‑party 4‑20 mA instruments ‑ Maintenance: Drop‑in replacement controller for field‑site refurbishment
Function
FMA90‑AA11B315B0+AK acquires measurement signals from one or two external level sensors. It converts raw sensor signals into level values, computes open‑channel flow rates using pre‑installed hydraulic profiles, and runs pump‑control interlock logics. Measured values, totalized flow volumes and device status are displayed locally on the touch screen. Process data can be logged internally and transmitted to upper‑level PLC / SCADA systems via analog signals, Modbus TCP or Wi‑Fi. The +AK accessory kit provides required mounting and connection hardware for field‑site installation.
Purpose
Realize level monitoring, open‑channel flow measurement and automatic pump control in water‑wastewater facilities. Deliver visualized on‑site readout and standardized signals to plant automation systems. Deployed for new project construction and spare‑part replacement for existing flow‑measurement control units.
Application Fields
Municipal water & wastewater treatment plants, sewage‑system monitoring, open‑channel flow metering, storm‑water overflow control, pumping‑station automation, water‑resource monitoring, industrial‑plant water‑cycle measurement projects.
Image search keyword: Endress+Hauser FMA90‑AA11B315B0+AK FlexView flow level control unit
