Company Profile

Vera Magnetic Flow Meter: Inline Conductive Fluid Volumetric Monitors

Quick Answer

The Vera magnetic flow meter measures volumetric flow of conductive fluids with no moving parts and almost zero pressure loss. It works on any liquid that has a conductivity above 5 µS/cm, including raw water, wastewater, acids, slurries, and pulps. For a fast quote send your pipe size (DN), process temperature, pressure rating, and fluid type to [email protected].

What Makes the Vera Mag Meter a Workhorse for Inline Volumetric Measurement

Silver Automation Instruments ships the Vera series electromagnetic flow meter into more than 40 countries across Southeast Asia, Oceania, Latin America, the Middle East, and Africa. We built this unit for industrial end users and distributors who need reliable inline volumetric monitoring without constant maintenance. The sensor uses a pair of flush mounted electrodes and a pulsed DC magnetic field to capture flow velocity. A PTFE or hard rubber liner isolates the fluid, and a carbon steel or 304 stainless steel body holds everything together. Engineers choose this meter when they face aggressive chemicals, abrasive mining slurries, or simply clean water that must be measured with high repeatability.

In practice the Vera mag meter covers pipe sizes from DN10 up to DN2000. The display shows real time flow rate in m³/h, L/s, or gal/min, plus a totalizer. Output options include 4-20 mA, pulse, RS485 Modbus, and HART protocol. Most installations use the 4-20 mA HART output to feed flow data straight into the plant PLC or DCS. The built in self diagnostic routines check coil resistance, electrode contamination, and grounding issues every 30 seconds. If the meter detects an empty pipe condition it holds the last valid reading and triggers an alarm relay. This logic prevents nuisance alarms in pump sequencing applications.

Where the Vera Magnetic Flow Meter Fits Your Process

We see a split of about 60 percent water and wastewater projects and 40 percent industrial process fluids. A water utility in the Philippines replaced 12 mechanical propeller meters with Vera DN150 remote style mag meters. They cut maintenance visits from twice a month to once a year. The only intervention now is wiping the display screen. For a desalination plant client in Morocco running seawater at 45 °C and 25 bar, we supplied full PTFE liner, titanium electrodes, and IP68 remote sensors. The conductivity of seawater sits around 50,000 µS/cm so the signal is strong and accuracy stays within ±0.5 percent of rate.

Food and beverage plants use the Vera on CIP return lines, milk receiving, and brew water. A dairy processor in New Zealand chose the sanitary tri clamp version with FDA approved PFA liner and 316L electrodes. The meter survives hot sanitizing cycles at 120 °C and still provides stable readings even when the fluid conductivity drops to 10 µS/cm. Chemical users in Vietnam dose sulfuric acid at 98 percent concentration into water treatment lines. For this application the liner is PFA, electrodes are tantalum, and the grounding rings are Hastelloy C. The meter body goes inside an Ex d enclosure rated ATEX Zone 1 because the dosing skid sits in a classified area.

Pulp stock with 4 percent consistency and mining tailings slurry with high magnetite content both work well on Vera mag meters. The key is selecting the right liner and electrode material. For paper stock we recommend hard rubber liner and 316L electrodes. For abrasive tailings use ceramic or polyurethane liner with tungsten carbide electrodes. A gold mine in Ghana has 37 Vera units measuring everything from freshwater intake to cyanide leach solution. They standardized on this model to keep spare parts inventory low and training simple.

Sizing and Installation Rules That Avoid Field Headaches

Pick a meter size where the normal flow falls between 1 and 8 m/s. Below 0.5