Selection at a Glance
- Electromagnetic induction measures instantaneous flow and the total of a conductive liquid, for wastewater, chemicals, and water mains.
- RS485 and DL/T645 (see the table) go into SCADA, billing, or a leakage platform.
- There are no moving parts, so it needs less care than a mechanical water meter. Keep the pipe full and the ground solid.
- SimtoLink can supply a comparison sheet for liner material, electrode material, and excitation frequency.
Product Overview and Engineering Role
The SimtoLink electromagnetic flowmeter metering unit is for large-bore custody transfer and for process proportioning. It holds a stable signal across a wide turndown and with solids in the liquid, and it is a core sensing node for smart water and industrial circulating water.
SimtoLink advises on the straight pipe upstream and downstream, the grounding ring, and empty-pipe detection. It can sit with an ultrasonic heat meter and a pressure transmitter in an energy-monitoring chain.
Reliability and Site Conditions
On electrical safety and EMC, the unit has passed the salt-spray and vibration type-test items that apply. Ports have surge and reverse-polarity protection. A reinforced ground and a partitioned layout keep ground loops and common-mode noise down. Outdoor or coastal sites can take a higher ingress rating and a corrosion-resistant coating.
Parameters can be imported in a batch, thresholds can be set, and event video or waveforms can be kept when the model allows it. Configuration and firmware go out over OTA. On site, close three checks: a power-on self-test, time sync on the communications link, and a spot check of samples. For metering or safety duty, SimtoLink helps send the unit to a third-party metrology institute and supplies the type-test file.
Key Hardware Parameters
Figures in the table are this unit in a typical build, written so they can go into a selection note or a bid clause. A wider range, redundant power, or an intrinsically safe explosion-proof variant comes with the Hardware Specification and the Installation and Commissioning Guide from SimtoLink. Sister order codes can differ a little; the nameplate and the documents in the carton govern.
| Parameter | Specification | Remarks |
|---|---|---|
| Voltage | DC 750V | Self-powered |
| Current | 5(80)A | Anti-tamper |
| Accuracy class | Class 0.2S | IEC 62052 |
| Harmonics | 2nd–41st order | THD analysis |
| Communications | RS485 DL/T645 | Two ports |
| Clock | Temperature-compensated crystal | Time-of-use tariffs |
| Pulse | LED verification | Opto-isolated |
| Power consumption | <1.9 W | Single-phase / three-phase |
| Operating temperature | -30～63 ℃ | Outdoor meter box |
| Standard | GB/T 17215 | Type approval |
Typical Deployments
How this unit is usually installed, for choosing a design and for the joint-test acceptance.
Plant Outlet and District Metering
Meter the water leaving the plant and the water entering a district, for non-revenue water and for minimum night flow.
Industrial Circulating Water
Watch flow on the cooling-tower and heat-exchanger loops, and tie it to dosing and blowdown.
Inlet and Outlet at a Wastewater Works
Total the flow at the pump station and through the process, and pair it with water-quality instruments for a load forecast.
Installation, Grounding, and Maintenance
- Confirm the supply range and polarity before power is applied. If the feed is uncertain, measure bus voltage and check the breaker rating with a multimeter.
- Use shielded twisted pair, bond the shield at one end, and do not run it in a long bundle with high-power cable.
- In the lab, finish two-way read and write and the threshold triggers against the platform before the unit moves to site.
- Outdoors, drainage and airflow come first. Inspect the sealing faces, and hold lightning-protection earth resistance to the local code.
- In long service, spot-check samples and archive logs every 24 months.
Ordering, Documentation, and Support
What ships from SimtoLink is the hardware specification, an outline drawing, a wiring table, and a sample project. Volume buyers can book a sample review and an inspection on the factory floor. Warranty and calibration are set by the contract and by the papers that travel with the unit.
Further Reading
Meter reading and fluid measurement: