LDG-SUP-A100 Electromagnetic Flow Meter
The LDG-SUP-A100 is a full-bore electromagnetic (mag) flow meter for conductive liquids at ≥50 µS/cm, such as water, wastewater, acids, alkalis and slurries. It covers DN10 to DN1000 with ±0.5% of reading accuracy (±0.3% for selected sizes), and outputs 4–20 mA, pulse and RS485, with HART optional.
What it does
A magnetic flow meter measures the voltage a conductive liquid generates as it moves through a magnetic field. Because the measuring tube is an open bore with no obstruction, the meter adds no pressure drop and has nothing to wear out, which is why it is the default choice for water networks, wastewater plants and chemical dosing lines.
The LDG-SUP-A100 is available as an integrated (compact) unit or as a remote version with the converter separated by a 10 m standard cable, for flooded pits, high-vibration pipework or hot process lines.
Technical specifications
| Nominal diameter | DN10–DN1000 (24 standard sizes) |
|---|---|
| Accuracy | ±0.5% of reading; ±0.3% for selected sizes at 0.5–5 m/s |
| Repeatability | 0.16% |
| Flow velocity | Typically 0.5–5 m/s |
| Minimum conductivity | ≥50 µS/cm |
| Liner | PTFE, F46, CR rubber, PU rubber |
| Electrodes | 316L, Hastelloy B/C, titanium, tantalum, Pt-Ir |
| Medium temperature | CR −10 to 70 °C; PU −10 to 60 °C; PTFE/F46 −10 to 120 °C |
| Process pressure | DN10–DN250 ≤1.6 MPa; DN300–DN1000 ≤1.0 MPa (high-pressure versions available) |
| Outputs | 4–20 mA (0–750 Ω), passive/active pulse ≤5000 Hz |
| Communication | RS485 standard; Modbus RTU and HART optional |
| Power supply | 100–240 VAC 50/60 Hz or 20–28 VDC, ≤15 W |
| Protection | Integrated IP65 (IP66/IP67 optional); remote sensor IP65, converter IP68 as listed by Supmea |
| Installation | ≥10 DN upstream, ≥5 DN downstream straight run |
Summarised from the official Supmea product page. The datasheet for your exact configuration governs. Ask us for it.
Key features
- No moving parts and no pressure loss across the full bore
- Liner and electrode materials matched to corrosive or abrasive media
- Empty-pipe, reverse-flow and min/max alarms with on-screen error codes
- Forward, reverse and net totalizers readable over RS485
- 20–28 VDC supply option for solar-powered field sites
Where it is used
- Water & Wastewater: Raw sewage, return activated sludge and treated effluent
- Chemical Processing: Acids, alkalis and oxidisers with PTFE liners
- HVAC & District Energy: Chilled-water and condenser-water loops, DN10–DN150
- Food & Beverage: Water, CIP solutions and conductive product streams
Frequently asked questions
What is the minimum conductivity for the LDG-SUP-A100?
50 µS/cm. Supmea also offers models down to about 2 µS/cm; check the datasheet for the exact model.
Can the LDG-SUP-A100 measure reverse flow?
Yes. It totalises forward, reverse and net flow separately and exposes all three over RS485.
Which liner should I choose for slurry?
PU or CR rubber liners resist abrasion; PTFE or F46 is preferred for aggressive chemicals and temperatures up to 120 °C.
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Request the LDG-SUP-A100 datasheet and quotation
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