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- Model Code Definition
| Code Segment | Description |
| FMQ | Basic series code: Sanitary electromagnetic flow meter, applicable to food, pharmaceutical and biotechnology industries |
| 50 | Pipe size: DN50 (2 inch), inner diameter of measuring tube 50mm |
| S | Sensor type: Standard sensor with PFA liner for general sanitary applications |
| D | Display option: Backlit graphic display with touch button operation, no need to open the housing |
| M | Communication interface: Standard IO-Link communication, supports simultaneous digital and analog output |
| XX | Process connection: Customizable connection types (clamp, thread, flange, etc.) |
- Core Technical Specifications
| Category | Detailed Specifications | Remarks |
| Basic Parameters | ||
| Brand / Origin | Anderson-Negele / Germany | Specialized in sanitary process instruments, founded in 1947 |
| Product Type | Electromagnetic inductive flow meter | No moving parts, low-maintenance design |
| Measuring Principle | Faraday’s law of electromagnetic induction | Induced electromotive force generated by conductive fluid cutting magnetic field lines |
| Nominal Diameter | DN50 (2 inch) | Corresponding model: FMQ050 |
| Measuring Performance | ||
| Measuring Range | Flow velocity: 0.1~10 m/s | Suitable for various flow working conditions |
| Flow rate: 30~280,000 L/h (DN50) | ||
| Measuring Accuracy | ±0.5% of reading ±2 mm/s | Maintains high accuracy at low flow velocity |
| Repeatability | ±0.15% of reading | Ideal for filling and batching processes |
| Fluid Conductivity | ≥5 μS/cm | Compatible with most liquids, pastes and creams |
| Solid Content | ≤5% solid particles | Able to measure media containing a small amount of solid particles |
| Fluid Compatibility | ||
| Wetted Materials | 1.4404 (316L) / 1.4435 stainless steel, Ra≤0.4 μm (electropolished) | Compliant with 3-A sanitary standard, excellent corrosion resistance |
| Measuring tube liner: PFA | ||
| Fluid Temperature | -10°C ~ +130°C | Resists CIP/SIP cleaning at 130°C for 30 minutes |
| Working Pressure | Subject to process connections and seals | |
| Standard clamp connection: 16 bar (232 psi) | ||
| Electrical Parameters | ||
| Power Supply | 24V DC ±10%, Max. 4W | Low power consumption design |
| Output Signals | 4~20 mA (Load ≤500 Ω), pulse output (Max. 1kHz) | Dual analog and digital outputs operate simultaneously |
| IO-Link V1.1 communication | ||
| Switch Input | 1 channel for flow/volume counter reset (optional) | Improve process control flexibility |
| Mechanical & Environmental | ||
| Protection Class | Transmitter: IP67 | Resists high-pressure washing and harsh industrial environments |
| Sensor: IP69K | ||
| Housing Material | 316L stainless steel | Corrosion-resistant, suitable for sanitary areas |
| Installation Mode | Omni-directional installation, full-pipe operation recommended | Built-in empty pipe detection to avoid false readings |
| Ambient Temperature | -20°C ~ +60°C | Wide temperature range for extreme working environments |
- Common Faults & Maintenance Solutions
3.1 Fault Diagnosis Table
| Fault Phenomenon | Possible Causes | Troubleshooting Steps |
| No flow display / no output | 1. Insufficient fluid conductivity | 1. Confirm fluid conductivity ≥5 μS/cm |
| 2. Sensor not fully filled with liquid | 2. Ensure full pipe flow and eliminate air bubbles | |
| 3. Power supply failure | 3. Verify input voltage 24V DC±10% | |
| 4. Incorrect wiring | 4. Check wiring diagram and correct wiring errors | |
| Unstable measured values | 1. Excessive air bubbles in fluid | 1. Optimize pipeline venting to remove bubbles |
| 2. Flow velocity below 0.1 m/s | 2. Keep flow velocity within measuring range | |
| 3. Electrode contamination | 3. Clean electrode surface after power cut-off | |
| 4. Poor grounding | 4. Control grounding resistance ≤10 Ω | |
| Large measuring error | 1. Incorrect sensor calibration | 1. Re-calibrate the sensor |
| 2. Electrode scaling | 2. Chemically clean electrodes following CIP/SIP procedures | |
| 3. Massive air bubbles inside fluid | 3. Optimize pipeline layout to reduce bubbles | |
| 4. Improper installation position | 4. Install sensor on straight pipe section (10D upstream, 5D downstream) | |
| Communication failure | 1. Damaged IO-Link cable | 1. Inspect cable connection and integrity |
| 2. Mismatched communication parameters | 2. Confirm IO-Link baud rate and address | |
| 3. Internal module failure | 3. Replace communication module or contact supplier for repair |
3.2 Maintenance Recommendations
- Daily Inspection
Check display status and reading stability weekly
Inspect terminal tightness and cable integrity monthly
Verify sensor installation tightness and pipeline sealing quarterly
- Periodic Maintenance
Perform CIP/SIP cleaning at 130°C for 30 minutes every 6 months to keep sensor clean
Inspect electrode condition annually; clean or replace electrodes if necessary
Complete sensor calibration every 2 years to guarantee measuring accuracy
Check liner integrity every 3 years to prevent liquid leakage
- Service Life Replacement Cycle
Normal working condition: PFA liner service life 5-8 years, electrode service life 3-5 years
Severe working condition (corrosive fluid / frequent CIP cleaning): shorten service life by 30%
- Full Series Model List
Basic FMQ Series Models (By Nominal Diameter)
| Model | DN Size | Flow Range (L/h) | Core Features | Typical Application |
| FMQ010 | DN10 (1/2″) | 30~16,000 | Mini size, high precision | Micro-flow batching, laboratory use |
| FMQ015 | DN15 (3/4″) | 30~36,000 | Compact structure | Small-batch food & beverage production |
| FMQ025 | DN25 (1″) | 30~100,000 | Standard universal type | Pharmaceutical batching system |
| FMQ040 | DN40 (1.5″) | 30~200,000 | High flow rate, high accuracy | Dairy production line |
| FMQ050 | DN50 (2″) | 30~280,000 | Mainstream size, standard IO-Link | Brewery industry, beverage filling |
| FMQ065 | DN65 (2.5″) | 30~450,000 | Large flow rate, high stability | Juice production line |
| FMQ080 | DN80 (3″) | 30~580,000 | Extra large flow rate, pressure-resistant | Edible oil production |
| FMQ100 | DN100 (4″) | 30~640,000 | Max pipe size, industrial grade | Bulk liquid transportation |
Complete Naming Rule
FMQ[Size][Sensor Type][Display Type][Communication][Process Connection]
Size: 010~100 corresponding to DN10~DN100
Sensor Type: S=Standard, H=High Temperature, E=Explosion-proof
Display Type: D=With display, N=No display
Communication: M=IO-Link, A=Analog output, P=Pulse output
Connection Type: T=Clamp, R=Thread, F=Flange
- Cross-brand Product Comparison
| Brand | Model | DN Size | Measuring Accuracy | Core Differences | Application Scenarios |
| Anderson-Negele | FMQ050SDMXX | DN50 | ±0.5% ±2 mm/s | Standard IO-Link, PFA liner, IP69K protection | Sanitary food & pharmaceutical industry with frequent CIP cleaning |
| Endress+Hauser | Promag 50P | DN50 | ±0.3% ±1 mm/s | Higher precision, multiple communication protocols | High-precision pharmaceutical and biotechnology industry |
| KROHNE | OPTIFLUX 1050 | DN50 | ±0.5% ±2 mm/s | Cost-effective, modular design | Mass production of food and beverage |
| ABB | AquaMaster 3 | DN50 | ±0.5% ±2 mm/s | Self-cleaning electrode, suitable for particle-containing media | Wastewater treatment, papermaking industry |
| E+H | Proline Promag H | DN50 | ±0.5% ±2 mm/s | High temperature & pressure resistance up to 180°C | High-temperature disinfection process, chemical industry |
Selection Key Points
- Sanitary Grade: Anderson-Negele FMQ complies with 3-A standard with Ra≤0.4 μm electropolished surface
- Communication Performance: Built-in IO-Link facilitates Industry 4.0 system integration
- Maintenance Cost: No moving parts plus empty pipe detection reduce maintenance workload
- Cleaning Compatibility: Stable performance under 130°C CIP/SIP sanitary cleaning
- Cost Performance: Moderate price and stable performance for mid-to-high end applications
- Air Freight Compliance & Certification Information
6.1 Air Freight Compliance
| Compliance Item | Detailed Description | Official Basis |
| Hazardous Goods Classification | Non-hazardous goods, no built-in lithium battery or super capacitor | IATA DGR 2026 Special Provision 9 |
| Shipping Package | Standard industrial shockproof and moisture-proof package | IATA DGR 8.1.6 |
| Shipping Restrictions | No special restrictions, deliverable as general cargo | IATA DGR 1.1.3.2 |
| UN Number | UN number is not required | Not classified as dangerous goods |
6.2 Certifications
| Certificate Type | Executive Standard | Applicable Scope |
| 3-A Certificate | 3-A Sanitary Standard 74-05 | Food, beverage and pharmaceutical industry |
| CE Certificate | EN 61326-1, EN 61010-1 | EU and European Economic Area |
| ATEX Certificate | II 3G Ex nA IIC T4 Gc (Optional) | Explosion hazardous area application |
| FDA Certificate | 21 CFR Part 177 | Food contact material safety certification |
| EHEDG Certificate | EHEDG Type EL Class I | Sanitary equipment design standard |
| IO-Link Certificate | IO-Link V1.1 | Industrial fieldbus communication protocol |
- Application Scenarios & Selection Guide
Applicable Scenarios
- Food & Beverage Industry
Dairy industry: Flow measurement and batching control for milk, yogurt, cream
Brewery industry: Precise metering for wort, beer and cleaning solution
Juice industry: Concentration juice and syrup conveying & proportion control
- Pharmaceutical & Biotechnology Industry
Injection production: Accurate filling and conveying of medical liquid
Fermentation process: Flow control of culture medium and additives
Aseptic production: GMP-compliant sanitary flow measurement
- Chemical & Cosmetic Industry
Cosmetic production: Process control for emulsion, cream and paste products
Fine chemical industry: Precise metering of high-purity chemicals
Coating industry: Ratio control of pigment and resin
Non-recommended Scenarios
- Measuring non-conductive fluid (conductivity＜5 μS/cm), ultrasonic flow meter is recommended
- Measuring fluid with solid particle content over 5%, Coriolis mass flow meter is recommended
- Working pressure over 40 bar, special high-pressure flow meter is required
- Working temperature below -10°C or above 130°C, customized model is required
- Ordering Information
Product Model: FMQ050SDMXX (XX stands for process connection type)
Minimum Order Quantity: 1 unit
Lead Time: 10-15 working days for standard models; 20-25 working days for customized models
Packaging Specification: Industrial anti-static package equipped with installation manual and calibration certificate
Warranty Period: 2 years under normal operating conditions
Full Introduction of Domestic Replacement Models for Anderson-Negele FMQ050SDMXX
- Recommended Core Replacement Models (Sorted by Matching Degree)
All below models meet core requirements: DN50 sanitary type, PFA liner, backlit display, IO-Link communication (customizable), food & pharmaceutical grade certification, compatible with CIP/SIP process, available for direct replacement.
1.1 Hangzhou Meiyi LDG-SUP-050SDM (First Choice)
| Item | Detailed Specifications | Matching Explanation |
| Model Code Rule | LDG-SUP-050SDM | Highly consistent naming rules and functional modules with original model |
| LDG=Electromagnetic flow meter series | ||
| SUP=Sanitary series | ||
| 050=DN50 | ||
| S=Standard PFA liner sensor | ||
| D=Backlit graphic display | ||
| M=IO-Link communication module | ||
| Core Parameters | Accuracy: ±0.5% of reading ±2mm/s | Fully consistent performance parameters and sanitary standards |
| Flow velocity range: 0.1~10m/s | ||
| Fluid conductivity ≥5μS/cm | ||
| Wetted part: 316L electropolished stainless steel + PFA liner | ||
| Working temperature: -10°C~+130°C (30min CIP/SIP) | ||
| Protection class: Sensor IP69K, Transmitter IP67 | ||
| Communication Function | Standard IO-Link V1.1, 4~20mA analog output, 1kHz pulse output, dual signal simultaneous output | 100% compatible with original IO-Link functions |
| Qualifications & Certifications | 3-A, NSF/ANSI 61, FDA 21 CFR Part 177, EHEDG Type EL Class I | Meet strict sanitary requirements of food and pharmaceutical industry |
| Cost Advantage | 40%~50% price of imported original products | Greatly reduce procurement cost |
1.2 Chongqing Chuanyi MFS-050SDM (Leading Domestic Replacement)
| Item | Detailed Specifications | Matching Explanation |
| Model | MFS-050SDM | Flagship sanitary model for high-end replacement |
| MFS=Sanitary electromagnetic flow meter series | ||
| Core Parameters | Accuracy: ±0.5% of reading ±2mm/s | Equivalent performance with reliable state-owned enterprise quality |
| Repeatability: ±0.15% of reading | ||
| Working pressure: 16bar (clamp connection) | ||
| Optional electrode: 316L / Titanium / Hastelloy | ||
| Omni-directional installation & automatic empty pipe detection | ||
| Featured Functions | Multi-frequency excitation technology with strong anti-interference ability | More extended functions than original model |
| Intelligent self-diagnosis for electrode contamination | ||
| Optional PROFIBUS / Modbus communication | ||
| Certifications | 3-A, CE, Optional ATEX, EHEDG | Meet mainstream international sanitary standards |
| Service Advantage | 24-hour nationwide after-sales support with sufficient spare parts | Better local service than imported brands |
1.3 Liance Instrument LDGW-SIN-050SDM (Cost-effective Replacement)
| Item | Detailed Specifications | Matching Explanation |
| Model | LDGW-SIN-050SDM | Specialized in food and pharmaceutical industry with high cost performance |
| LDGW=Sanitary electromagnetic flow meter | ||
| SIN=Liance brand mark | ||
| Core Parameters | Accuracy: ±0.5% of reading | Basic parameters fully consistent with FMQ050 |
| Flow velocity range: 0.1~10m/s | ||
| Fluid temperature: -10°C~+130°C | ||
| Protection class: Sensor IP69K, Transmitter IP67 | ||
| Communication & Output | IO-Link V1.1, 4~20mA, pulse output | Identical functional configuration with FMQ050SDM |
| Support flow/volume counter reset switch input | ||
| Certifications | 3-A, FDA, CE, RoHS | Comply with international food contact safety standards |
| Price Level | 35%~45% of imported original price | Optimal choice for budget-limited projects |
- Detailed Technical Parameter Comparison Table
| Parameter Category | Anderson-Negele FMQ050SDMXX | Hangzhou Meiyi LDG-SUP-050SDM | Chongqing Chuanyi MFS-050SDM | Liance LDGW-SIN-050SDM |
| Measuring Performance | ||||
| Accuracy | ±0.5% of reading ±2mm/s | ±0.5% of reading ±2mm/s | ±0.5% of reading ±2mm/s | ±0.5% of reading |
| Repeatability | ±0.15% of reading | ±0.15% of reading | ±0.15% of reading | ±0.15% of reading |
| Flow Velocity Range | 0.1~10m/s | 0.1~10m/s | 0.1~10m/s | 0.1~10m/s |
| DN50 Flow Range | 30~280,000L/h | 30~280,000L/h | 30~280,000L/h | 30~280,000L/h |
| Fluid Compatibility | ||||
| Wetted Material | 316L(Ra≤0.4μm)+PFA liner | Same | Same | Same |
| Fluid Temperature | -10°C~+130°C | Same | Same | Same |
| Working Pressure | 16bar (clamp) | Same | Same | Same |
| Fluid Conductivity | ≥5μS/cm | Same | Same | Same |
| Electrical & Communication | ||||
| Power Supply | 24VDC±10%, 4W | Same | Same | Same |
| Output Signals | 4~20mA / Pulse / IO-Link | Same | Same | Same |
| Protection Class | Sensor IP69K, Transmitter IP67 | Same | Same | Same |
| Main Certifications | 3-A/FDA/EHEDG/IO-Link | 3-A/NSF/FDA/EHEDG/IO-Link | 3-A/FDA/EHEDG/CE | 3-A/FDA/CE/RoHS |
| Price Ratio | 100% | 40%~50% | 45%~55% | 35%~45% |
- Key Points for Replacement Selection
3.1 Core Matching Requirements
Consistent Sanitary Standard: Must adopt products certified by 3-A and EHEDG, ensure Ra≤0.4 μm electropolished surface and dead-space-free design
Communication Protocol Compatibility: Confirm IO-Link V1.1 version to realize seamless system connection
Equivalent Measuring Performance: Reach standard accuracy, repeatability and low flow measuring capability
Cleaning Resistance: Stable operation under 130°C/30min CIP/SIP cleaning without liner aging
3.2 Differentiated Advantage Comparison
| Brand | Core Advantages | Applicable Scenarios |
| Hangzhou Meiyi | Moderate price, complete IO-Link functions, full certifications | Mid-to-high end food & beverage production line, full function compatibility required |
| Chongqing Chuanyi | Reliable quality, strong anti-interference, intelligent diagnosis function | GMP pharmaceutical workshop, high stability and long service life required |
| Liance Instrument | Lowest price, high cost performance, fast after-sales response | Small and medium-sized food enterprises with limited budget |
3.3 Replacement Implementation Notes
- Installation Compatibility: All three replacement models adopt standard clamp connection with identical installation dimensions for direct replacement
- Wiring Matching: Consistent IO-Link pin definition, no need to modify control cabinet wiring
- Parameter Migration: Directly import original range, unit and alarm parameters for quick commissioning
- Calibration Verification: On-site calibration is recommended after replacement to meet process precision requirements
- Full Series Domestic Replacement Model List
Hangzhou Meiyi LDG-SUP Sanitary Series
| Model | DN Size | Core Configuration | Application |
| LDG-SUP-010SDM | DN10 | Standard, PFA liner, display, IO-Link | Micro-flow batching, laboratory |
| LDG-SUP-025SDM | DN25 | Standard, PFA liner, display, IO-Link | Pharmaceutical batching system |
| LDG-SUP-050SDM | DN50 | Standard, PFA liner, display, IO-Link | Brewery & beverage filling (replace FMQ050) |
| LDG-SUP-080SDM | DN80 | Standard, PFA liner, display, IO-Link | Edible oil production |
| LDG-SUP-100SDM | DN100 | Standard, PFA liner, display, IO-Link | Bulk liquid delivery |
Chongqing Chuanyi MFS Sanitary Series
| Model | DN Size | Core Configuration | Application |
| MFS-015SDM | DN15 | Standard, PFA liner, display, IO-Link | Small-batch food production |
| MFS-040SDM | DN40 | Standard, PFA liner, display, IO-Link | Dairy production line |
| MFS-050SDM | DN50 | Standard, PFA liner, display, IO-Link | Juice production line (replace FMQ050) |
| MFS-065SDM | DN65 | Standard, PFA liner, display, IO-Link | Large-flow food production |
Liance LDGW-SIN Sanitary Series
| Model | DN Size | Core Configuration | Application |
| LDGW-SIN-025SDM | DN25 | Standard, PFA liner, display, IO-Link | Cosmetic production |
| LDGW-SIN-050SDM | DN50 | Standard, PFA liner, display, IO-Link | Fine chemical & pharmaceutical industry |
| LDGW-SIN-080SDM | DN80 | Standard, PFA liner, display, IO-Link | Coating industry |
- Quick Selection Reference Table
| Demand Orientation | Recommended Model | Selection Reason |
| Full function 100% matching | LDG-SUP-050SDM | Best IO-Link compatibility and identical model definition |
| Highest operational reliability | MFS-050SDM | Strong anti-interference, suitable for core pharmaceutical processes |
| Strict budget control | LDGW-SIN-050SDM | Lowest cost, ideal for batch replacement |
| Pharmaceutical GMP workshop | MFS-050SDM | Complete sanitary certifications and intelligent diagnosis |
| Food & beverage production line | LDG-SUP-050SDM | Balanced cost performance and efficient after-sales service |
