The Model SGM-250P backwashes based upon pressure differential across the filter media. Additionally, an adjustable timer allows back washing for up to five minutes. The factory setting is four minutes.

The pressure differential switch is adjustable for pressure drop and dead band. Backwash will start when the pressure differential reaches set point plus the dead band. For example, if the pressure differential is set for 6 psi, the dead band for 4 psi, and the backwash timer for 4 minutes, then the backwash cycle will start at 10 psi for a duration of four minutes.

Replacing Sand and Gravel

Replace the sand and gravel every two years, when contaminated, or when sand has carried over from excessive water flow.

There are three layers of filter media. First, starting from the bottom, place 200 lbs. of ½” x ¼” round gravel. Second, place 300 lbs. of ¼” x 1/8” round gravel and third, the top final layer, place 700 pounds of #20 filter sand.

Anode Replacement

On top of the filter housing is a sacrificial anode made of magnesium. Inspect and replace when it has depleted.

5-2 Centri-Separator System

The CSM-150 and CSM-400 require a 120/1/60-power source and are provided with a standard plug. The separators are designed to operate to a prescribed flow range for maximum solid removal. The CSM-150 operates at a flow rate of 10 to 20 gpm and the CSM-400 operates at 45 to 70 gpm. Liquid enters the upper portion of the separator housing tangentially and the solids are drawn through internal slots to the bottom chamber. An electrically operated ball valve automatically back flushes the solids from the separator. Periodically inspect and ensure that the purge line is clear to flow freely.

Water Management Systems and Products

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Sterling SGM-250A manual Centri-Separator System, Replacing Sand and Gravel, Anode Replacement
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SGM-250A specifications

The Sterling SGM-250A is an innovative and versatile moving head spotlight designed primarily for the entertainment and event industry. This fixture has gained recognition for its powerful performance, reliability, and user-friendly features, making it a popular choice among lighting designers and operators.

One of the standout features of the SGM-250A is its advanced LED technology. The fixture utilizes a high-intensity 250-watt LED source, which not only delivers exceptional brightness but also offers an impressive color temperature range. This allows for a wider spectrum of colors, enabling designers to create dynamic and visually stunning displays. The fixture's optical system is optimized to provide a sharp and well-defined beam, ensuring that light is precisely directed where needed.

In terms of control, the SGM-250A is equipped with both DMX and RDM capabilities, allowing for seamless integration into existing lighting setups. Its intuitive interface, complete with a user-friendly menu, makes programming and operating the fixture straightforward, even for those with limited experience. The fixture supports various DMX channel modes, giving operators the flexibility to choose the level of control they require.

Another impressive characteristic of the SGM-250A is its versatile beam options. The fixture offers a zoom range from 10 to 45 degrees, enabling users to adjust the beam spread depending on the application. Whether creating tight spots for dramatic effects or wider washes for ambient lighting, the SGM-250A excels in diverse settings, from concerts and theaters to corporate events and festivals.

Additionally, the SGM-250A is designed with durability in mind. Its robust construction and innovative thermal management system ensure consistent performance even in demanding environments. The fixture features a quiet operation, thanks to its efficient cooling system, making it suitable for situations where noise levels need to be minimized, such as live performances or studio recordings.

With its combination of advanced features, exceptional performance, and reliable construction, the Sterling SGM-250A is an ideal choice for lighting professionals seeking a high-quality moving head spotlight. As technology in the entertainment industry continues to evolve, fixtures like the SGM-250A set the standard for what modern lighting equipment can achieve. Whether for large-scale productions or intimate settings, this fixture proves to be a valuable tool in the creative lighting arsenal.
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