New innovative fail-safe design
The Maxima+ is the state-of-the-art  microprocessor based fail-safe and fool-proof rotary level indicator.  The distinguishing feature of the Maxima+ is it’s ability to continuously self diagnose itself, and in the event of a failure, gives an immediate warning and instantaneous corrective response. This means the Maxima+ is the rotary of choice whenever it’s crucial that continuous operation of the unit must be confirmed

Motor and Visual Monitoring
A supervisory circuit monitors the motor shaft rotation with a slotted disk and digital optical encoder.  In the absence of material a drive motor freely rotates a paddle connected to the motor shaft.  When material reaches the paddle, the resistance causes the motor to rotate and open a switch. This promptly causes the motor to "de-energize" and a process relay to change status.  If the shaft stops turning because of a motor or electrical failure, the motor will not rotate and open the switch.  The supervisory circuit observes no shaft rotation and looks to see if the switch is open.  If the switch remains closed, the supervisory circuit detects a failure, casing the process relays to switch to a safe condition.  A separate supervisory fault relay is activated by the supervisory circuit, indicating that there is some kind of unit failure rather than a normal alarm condition (high or low level alarm). 

The supervisory circuit also sends a signal to an external LED light, which indicates the sensor’s sstatus, giving a quick visual monitoring of paddle rotation, covered condition or fault condition. A pulse status relay is also provided for remote status monitoring.

Applications
The Maxima+ is designed for controlling dry bulk material storage and flow in bins, hoppers, tanks, chutes and conveyors.  Typical applications include feed, cement, grain, plastic, aggregates, and wood products.  The Maxima+ came  can be used in materials with a bulk density as low as 2 lb/ft³ (30 kg/m³).  By managing material storage and flow with the Maxima+, you prevent bin overflows, empty conditions, clogged chutes, and jammed conveyors.  This eliminates costly spills, material waste, and unnecessary down time

Side Mount Installation

Side-of-bin mounting is recommended using a BinMaster half coupling mounting plate or 1/2 of a standard pipe coupling installed flush with the inside of the bin wall.  A short solid shaft coupler is connected to the power pac.  Paddle should be placed out of the direct flow of the material.  When this cannot be avoided, a protective shield over the paddle is recommended.  

Top Mount Installation

Top-of-bin mounting is recommended using a BinMaster full coupling mounting plate or a standard 1 1/4” pipe coupling.  The length of the extension shaft (1/4” pipe) is extended to suit the application.  A flexible coupler connects the shaft to the power pac.  Protective shaft guards are necessary on shaft extensions 24” or longer.  The shaft guard should be adequately braced on  longer shaft extensions

Mounting Plates

Mounting Plates Mounting plates allow the Maxima+ rotary units to be mounted from the outside of a vessel on a curved or flat surface.  A half coupling mounting plate is used in side mount installations.  A full coupling mounting plate is for use in top mount installations where a shaft extension and shaft guards are required.  Both mounting plates are available in powder coated carbon steel and stainless steel for use in corrosive environments. 

Solid Shaft Coupler

Short solid shaft coupler should be used in side mount installations.  It provides stability and protects the internal workings of the unit.

Flexible Shaft Coupler

The flexible coupler should be used in top mount installations to absorb side loads and protect the internal workings of the unit

Pipe Extension

Top mount installation may require that the paddle extends into the vessel.  Galvanized or stainless 1/4” diameter steel shaft extensions are available in a variety of lengths up to 144” (3.3 m). 

Pipe Guard

Pipe guards are recommended in top mount installations when the pipe extensions exceeds 24”. (600 mm).  Pipe guards limit the movement of the pipe extension caused by side loading that can damage the rotary unit. Pipe guard should be the same length as the pipe extension and are available in galvanized or stainless steel.

Paddle Assemblies

GRP-1 Stainless steel for light materials up to 30 lb/ft³.  3 vane paddle, 7” diameter.

GRP-2 Stainless steel for medium materials 30 to 70 lb/ft³.  3 vane paddle, 5” diameter.

GRP-3 Insertable stainless steel for heavy materials over 60 lb/ft³.  Single vane, 5” diameter.

GRP-26 Direct connect (eliminates the need for GRSS-1 coupler).  Version of GRP-1