Multi-Mag reduces cut-and-splice ops and shutdowns

The precision Marsh Multi-Mag flow meter from McCrometer eliminates the costly cut-and-splice operations and system shutdowns required with full-bore meters.

At the same time, its fits in tight, crowded equipment areas with limited pipe straight-run availability.

The Multi-Mag features a next-generation multi-electrode sensor packaged in an insertion-style configuration suitable for hot-tap installation.

According to the company, it is the only multiple-point-insertable flow meter on the market today.

It is said to be cost effective for large line-size applications.

In comparison, the total installed cost of tube meters increases as the nominal pipe diameter increases.

This makes it a lower-cost solution in most large transmission line applications.

The Multi-Mag's advanced streamline multi-electrode sensor design compensates for real-world variable water flow profiles, including low-flow conditions.

Multiple electrodes located across the Multi-Mag's entire sensor body continuously measure and indicate the average flow rate.

It is highly accurate, repeatable and stable with virtually no drift that requires field recalibration.

In addition, there is almost no pressure drop, which reduces plant pump energy requirements.

The Multi-Mag fits in crowded installations with too much equipment and too little plant real estate.

There is no need for long upstream or downstream straight pipe runs to support accurate measurement.

Hot-tap installation also allows the Multi-Mag to be removed and installed in other locations to support troubleshooting or temporary measurement needs.

The Multi-Mag is available for service in line sizes from 4in (10cm) to 120in, providing bi-directional or forward flow, depending only on the specific model.

Accuracy is +/-1 per cent of reading +/- zero stability from +0.3ft/s to +20ft/s, while repeatability is 0.20 per cent of range.

The Multi-Mag's highly stable flow sensor comes pre-calibrated from the factory and requires virtually no recalibration, according to McCrometer.

With no moving parts, the Multi-Mag's multi-electrode sensor contains nothing to wear or break and it is generally immune to clogging by sand, grit or other debris.

It is built to demanding industrial standards with heavy-duty materials for a long life.

There is little maintenance required and, when coupled with its long life, the cost of ownership is economical.

The Multi-Mag supports liquid flow measurement requirements in municipal and industrial water treatment.

Typical applications include distribution, effluent, filter balancing and backwash, pumping stations and UV dosing.

It is suitable for district energy facilities in cooling water, chilled water and heating, ventilation and air conditioning (HVAC) applications and a number of processes found in food/beverage, electric power generation, chemical processing and pulp/paper plants.

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