Technical Data
CompareContinuous / Liquids
| Measuring Principle | Level radar |
| Characteristic / Application | Level, pump control, open channel flow measurement, data logging, rake control, storm overflow basin |
| Specialities | Degree of protection of polycarbonate field housing; and aluminum field housing: IP65/NEMA Type 4x; Degree of protection of DIN rail housing: IP20; Degree of protection of panel housing: IP65/NEMA Type 4 (at front,; if mounted in cabinet door), IP20 (at rear, if mounted in cabinet door); sensor recognition and parameter mapping; of FMR20B/FMR30B/FMX21 sensors |
| Supply / Communication | 100 … 230 VAC; 10.5 … 32 VDC |
| Ambient temperature | -40 to +60 °C (-40 to +140 °F) (Type tested); -35 to +60 °C (-31 to +140 °F) (approved by CSA) |
| Communication | Input: 1x or 2 x 4-20mA/HART Output: 2 x Analog, 1 relay or 5 relays (2 x SPDT, 3 x SPST), 1 or 3 open collector (NPN) |
| Certificates / Approvals | ATEX, CSA, EAC, JPN Ex, NEPSI, INMETRO, KC |
| Options | 3.5" TFT touch color display for onsite operation with backlight, WLAN connectivity or communication via Ethernet, guided wizzards vor commissioning, up to two level sensors Housing: Panel-mounted / DIN rail / Field |
| Components | Sensors: FMR10B, FMR20B, FMR30B, FMX21, FMU30 |
Continuous / Solids
| Measuring Principle | Level radar solid |
| Characteristic / Application | Level, pump control,open channel flow measurement, data logging, rake control, storm overflow basin |
| Specialities | Degree of protection of polycarbonate field housing; and aluminum field housing: IP65/NEMA Type 4x; Degree of protection of DIN rail housing: IP20; Degree of protection of panel housing: IP65/NEMA Type 4 (at front,; if mounted in cabinet door), IP20 (at rear, if mounted in cabinet door); sensor recognition and parameter mapping; of FMR20B/FMR30B/FMX21 sensors |
| Supply / Communication | 100 … 230 VAC; 10.5 … 32 VDC |
| Ambient temperature | –40 to +60 °C (–40 to +140 °F) (Type tested); –35 to +60 °C (–31 to +140 °F) (approved by CSA) |
| Communication | Input: 1x or 2 x 4-20mA/HART Output: 2 x Analog, 1 relay or 5 relays (2 x SPDT, 3 x SPST), 1 or 3 open collector (NPN) |
| Certificates / Approvals | ATEX, CSA, EAC, JPN Ex, NEPSI, INMETRO, KC |
| Options | 3.5" TFT touch color display for onsite operation with backlight, WLAN connectivity or communication via Ethernet, guided wizzards vor commissioning, up to two level sensors Housing: Panel-mounted / DIN rail / Field |
| Components | Sensors: FMR10B, FMR20B, FMR30B, FMX21, FMU30 |
Pressure
| Measuring Principle | Hydrostatic pressure |
| Characteristic | Level, pump control, open channel flow measurement, data logging, rake control, storm overflow basin |
| Supply voltage | 100 … 230 VAC; 10.5 … 32 VDC |
| Ambient temperature | -40 to +60 °C (-40 to +140 °F) (Type tested); -35 to +60 °C (-31 to +140 °F) (approved by CSA) |
| Communication | Input: 1x or 2 x 4-20mA/HART Output: 2 x Analog, 1 relay or 5 relays (2 x SPDT, 3 x SPST), 1 or 3 open collector (NPN) |
| Certificates / Approvals | ATEX, CSA, EAC, JPN Ex, NEPSI, INMETRO, KC |
| Specialities | Degree of protection of polycarbonate field housing; and aluminum field housing: IP65/NEMA Type 4x; Degree of protection of DIN rail housing: IP20; Degree of protection of panel housing: IP65/NEMA Type 4 (at front,; if mounted in cabinet door), IP20 (at rear, if mounted in cabinet door); sensor recognition and parameter mapping; of FMR20B/FMR30B/FMX21 sensors |
FMA90 control unit with color display and touch function for connecting up to two ultrasonic, radar, hydrostatic or universal 4...20 mA/HART® level sensors
Application
• Level measurement: level linearization and setpoint monitoring for alarm output
• Level measurement: multiple pump control options, controlling up to eight pumps
• Differential level measurement: control calculation using two sensors
• Flow measurement in open channels or measuring weirs, with optional backwater detection
• Flow measurement: counting pulse output to external devices and flow totalizers
• Flow measurement in stormwater overflow basins
Advantages
• Equipped with a 3.5" color display with touch control or an integrated web server for easy operation
• Ethernet or wireless WLAN communication
• Compatible with all two-wire or four-wire level transmitters with 4...20 mA/HART interface
• Guided setup wizard for fast and simple commissioning
• Automatic detection and configuration of the following Endress+Hauser sensors: Micropilot FMR20B, FMR30B,
and Waterpilot FMX21
• Optional international gas explosion protection and dust explosion protection certification
• Wide range of applications, available as field housing, DIN rail device or panel-mounted device
Spare Parts & Accessories 38
38 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| 71706829 | Housing front + display FMA90, DIN rail | Details |
| 71706830 | Front housing w/o display FMA90 DIN rail | Details |
| 71706832 | Hinge joint FMA90 DIN rail | Details |
| 71706822 | Bus board FMA90 DIN rail | Details |
| XPF0053- | CPU + Software FMA90Attention: Only 1 piece per position orderable in offer/order because of item category group ZTA1. | Enquire |
| XPF0054- | Upgrade codeAttention: Only 1 piece per position orderable in offer/order because of item category group ZTA1. | Enquire |
| 71706826 | Relay + power supply DIN rail + panel 24VDCOutput: 5x relay (2x SPDT, 3x SPST). Relay 2-5 must be activated in FW. | Details |
| 71706828 | Relay + power supply, DIN rail + panel, 230 VACOutput: 5x relay (2x SPDT, 3x SPST). Relay 2-5 must be activated in FW. | Details |
| 71706835 | Terminal plug-in 2-pole "L/+ N/-" pitch 5.0Fitting for power supply FMA90. | Details |
| 71706836 | Terminal set relay FMA90 DIN rail+panel2x 3pol RM 5.0 (relay 1,2). 3x 2pol RM 5.0 (relay 3,4,5). 1x 2pol RM 5.0 (power supply). | Details |
| 71706823 | Standard IO board FMA90, DIN rail + panel mountingSensor input: 1x 4-20mA HART. Digital input: 4x DI IN. Output: 1x 4-20mA (opt. HART), 1x OC. DI (1-4) must be activated in FW. | Details |
| 71706833 | Terminal set Std-IO FMA90, DIN rail + panel mounting1x 4pol RM3.5 (A01, OC1). 1x 6pol RM3.5 (DI1-4). 1x 4pol RM3.5 (AI1). | Details |
| 71706825 | Option I/O board FMA90 DIN rail + panelSensor input: 1x 4-20mA HART. Output: 1x 4-20mA, 2x OC. | Details |
| 71706834 | Terminal set Opt-IO FMA90 DIN rail+panel1x 6pol RM3.5 (A02, OC2, OC3). 1x 4pol RM3.5 (AI2). | Details |
| 71706839 | Front housing + display FMA90 panel | Details |
| XPF0053- | CPU + Software FMA90Attention: Only 1 piece per position orderable in offer/order because of item category group ZTA1. | Enquire |
| 71706838 | Bus board FMA90 panel | Details |
| 71706826 | Relay + power supply DIN rail + panel 24VDCOutput: 5x relay (2x SPDT, 3x SPST). Relay 2-5 must be activated in FW. | Details |
| 71706828 | Relay + power supply, DIN rail + panel, 230 VACOutput: 5x relay (2x SPDT, 3x SPST). Relay 2-5 must be activated in FW. | Details |
| 71706823 | Standard IO board FMA90, DIN rail + panel mountingSensor input: 1x 4-20mA HART. Digital input: 4x DI IN. Output: 1x 4-20mA (opt. HART), 1x OC. DI (1-4) must be activated in FW. | Details |
Configurator / Comparison
Source:Endress+Hauserpublic information from the website
Measuring principle video
Click to play8 documents · click to expand
Case Studies
Municipal Wastewater Treatment · ultrasound — Application Case
Application Context
the inlet, biological and outlet stages of a municipal plant is a typical Municipal Wastewater Treatment duty. The project started from ultrasound , focusing on ultrasonic liquid level measurement or interface detection.
Process Constraints
effluent parameters drift and probes foul with sludge and biofilm, and high solids and corrosive fractions, with large diurnal flow swings only amplify it. The ultrasound specification must therefore cover sizing range against dead zone, mounting height and medium temperature.
Delivery Approach
Delivery was handled as the level range — level solution matched to the actual tank and silo geometry. Execution centred on sizing range against dead zone, mounting height and medium temperature, together with stable compliance with Grade 1A discharge limits and online data reporting.
Field Results
Operation shows the benefit clearly — retrofit without touching the tank, with short installation time, with confidence in this measuring point improving markedly.
Food & Beverage · ultrasound — Application Case
Customer Profile
The typical setting in Food & Beverage is dosing, pasteurising, filling and CIP stages. The measuring point is ultrasound ; the focus is ultrasonic liquid level measurement or interface detection.
Key Difficulties
Conditions are syrups, dairy and beverages that scale easily, under strict hygienic requirements and, on top of that, frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles, which a standard configuration cannot handle for long. The design therefore starts with sizing range against dead zone, mounting height and medium temperature.
Implementation
The scope ran through the level range: level solution matched to the actual tank and silo geometry. Technically it hinges on sizing range against dead zone, mounting height and medium temperature, and on these requirements: food-safety and hygienic design per 3-A / EHEDG.
Customer Benefit
In practice this means retrofit without touching the tank, with short installation time, which cut the workload on the site maintenance team.
Chemical & Pharmaceutical · ultrasound — Application Case
Project Background
The project covers reactors, metering vessels and finished-product tanks. The work centres on ultrasound and the core task is ultrasonic liquid level measurement or interface detection.
Operating Challenges
The medium and duty are characterised by highly corrosive media with solvents and crystallisation, partly in explosive atmospheres, and corrosion plus Ex protection shortens instrument life and makes downtime costly. So ultrasound cannot be specified generically — it calls for sizing range against dead zone, mounting height and medium temperature.
Solution
The Ainstru engineering team worked through the level range: level solution matched to the actual tank and silo geometry. The configuration involves sizing range against dead zone, mounting height and medium temperature, with these requirements in view: Ex certification and GMP traceability of records.
Results
Since start-up the system has run steadily; the practical result is retrofit without touching the tank, with short installation time.
Power & Energy · ultrasound — Application Case
Project Overview
The site is boiler feedwater, turbine condensate and FGD/DeNOx systems. The customer wanted ultrasound properly configured on the existing plant, with the aim of ultrasonic liquid level measurement or interface detection.
Technical Challenges
What actually causes trouble is high temperature and pressure with both steam and saline water, and drift under high temperature and pressure, with very costly unplanned outages. All of this means the ultrasound configuration has to involve sizing range against dead zone, mounting height and medium temperature.
Configuration
Supply and installation were organised through the level range: level solution matched to the actual tank and silo geometry. On site this meant sizing range against dead zone, mounting height and medium temperature, checked line by line against: compliance with power-industry codes and unit availability targets.
Performance
After commissioning the outcome is retrofit without touching the tank, with short installation time, and the readings are now used for process tuning.
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