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Siemens Flow Meter Mag 5100w for Municipal Drinking Water and Wastewater
Quick Answer: The Siemens Mag 5100w is an electromagnetic flow meter built specifically for drinking water and wastewater networks. It measures flow from 0.2 m/s up to 10 m/s, handles low conductivity media down to 5 µS/cm, and comes with potable water approvals like WRAS and NSF. Silver Automation Instruments supplies the Mag 5100w with sizes from DN15 to DN2000 and pressure ratings up to PN40. Send your pipe size, flow range, and media type for a price today.
Water utilities across Southeast Asia, the Middle East, and Latin America have a common challenge. They need a flow meter that survives buried installations, constant humidity, and low‑conductivity potable water. The Siemens Mag 5100w handles all of that without drift or liner failure. We keep a large stock of this meter because a single municipal project often orders 40 or 50 units in one shot. Here is what engineers and procurement managers need to know before adding the Mag 5100w to their spec sheet.
Why the Mag 5100w Fits Drinking Water Zones
The meter body uses a hard rubber liner that carries full WRAS and NSF‑61 approvals. This matters when you meter water that goes straight into a distribution tank. A customer in the Philippines replaced 28 mechanical turbine meters with Mag 5100w models on a trunk main of DN500. The old meters jammed after dark silt events. The new Mag 5100w electrodes stayed clean and the 4‑20 mA signal to the SCADA never dropped. The built‑in SmartSensor technology monitors electrode coating. If the sensor detects deposit build‑up it raises a warning before the measurement error exceeds 1 %. In practice this cuts maintenance visits by half.
Wastewater Sites Demand Rugged Electrodes
Raw sewage and sludge are abrasive. The Mag 5100w allows you to choose Hastelloy C‑276 electrodes and a polyurethane liner for high solids flows. A municipal wastewater plant in Vietnam asked us for DN300 meters to aerate activated sludge. The site had no compressed air to purge mechanical parts. The Mag 5100w has no moving parts. It just bolts between flanges and runs on a 24 V DC supply. The empty pipe detection function saved the plant team three times last rainy season. When the inlet channel drained unexpectedly the meter froze the output at zero instead of ramping up a ghost flow. Operators got an alarm on their PLC and stopped the dosing pumps. We have seen this exact scenario in at least seven Asian treatment plants.
Key Specifications That Match Your PID Loop
Nominal diameters range from DN15 up to DN2000. The standard accuracy is 0.4 % of rate with a fast update cycle of 0.1 second. Conductivity requirement is only 5 µS/cm. You can power the transmitter with 85‑265 V AC or 12‑24 V DC. Output options include 4‑20 mA HART, pulse, and Modbus RTU. The enclosure is IP67 or IP68 for submersible pits. Flange standards cover ANSI, JIS, and EN 1092‑1. Most engineers skip the complex setup menus. They use the local push‑button interface to set the pulse value per litre in under two minutes. The compa
What You Need to Send Us for a Fast Quote
Procurement teams often delay RFQs because they need a long list of parameters. We keep it simple. Send us your pipe diameter, media type, pressure rating, and required process connection standard. If you have a conductivity value and temperature in °C include them. Our team will suggest the right liner and electrode material. For drinking water we default to EPDM or hard rubber liners with 316L stainless electrodes. For chemical wastewater we move to PTFE or PFA liners with Hastelloy electrodes. We also check whether you need compact or remote cable lengths. The remote kit comes with a shielded signal cable in 5‑m increments up to 50 m. We ship calibrated meters with a factory certificate to Australia, Nigeria, the Gulf region, and Chile every week.
Real‑World Dosing Control with the Mag 5100w
A chemical dosing contractor in Qatar used the Mag 5100w to handle a high‑pH coagulant line. They had a traditional Coriolis meter but the pH 12 fluid attacked the sensor. The Mag 5100w with a PTFE liner and tantalum electrodes ran for 18 months without drift. They sent us the commissioning photo and the transmitter was still showing the same baseline. Because the meter outputs a robust active 4‑20 mA signal they wired it directly to a pump speed controller. No extra signal conditioner was needed. This kind of cost reduction helps small integrators win bids. We regularly share this setup with customers in the Middle East who face aggressive media.
FAQ
Q: Can the Mag 5100w measure reverse flow in a wastewater lift station?
A: Yes. The transmitter detects bidirectional flow and outputs separate forward and reverse totals. You can set a negative flow alarm.
Q: What approvals does the meter hold for drinking water?
A: It carries WRAS, NSF‑61, and ACS certifications on the hard rubber liner version. Always confirm the exact liner code with us when you order.
Q: Do you keep the Mag 5100w in stock in Australia?
A: Silver Automation Instruments warehouses common sizes like DN25, DN50, DN80, DN100, and DN150 in our Australia distribution center. Larger sizes ship in 2‑3 weeks.
Q: Can the Mag 5100w run on battery power for remote sites?
A: The standard 12‑24 V DC version works well with a solar battery system. We have a solar panel kit designed for flow monitoring stations in remote areas.
Q: What accuracy does the meter hold at low flow rates?
A: The meter maintains 0.4 % accuracy from 0.5 m/s upwards. Below 0.2 m/s it cuts off. For custody transfer we recommend staying above 0.3 m/s in the pipe.
Get your specific quote now. Email your pipe size, media, and flow range to [email protected]. You can also reach us on Tel: +86-135-1213-1526, WhatsApp: 86-135-12131526, or WeChat: +86 13512131526. We reply with a complete data sheet and delivery schedule within one business day.