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Measuring principle

Once a measurement cycle is initiated, the SiloPatrol?SE sensor (SMU) Smart?motor system controls the descent of a plumb bob, attached to a heavy-duty stainless steel cable, into the vessel. The SMU measures the amount of cable dispensed via its unique optical sensing system. The SMU's optic system is completely sealed from the internal environment of the electronics compartment, which is isolated and sealed from material ingress in the mechanical compartment, to ensure long-term reliable operation.

The descent of the bob is maintained at an optimal speed by the smart motor control system, contributing to the elimination of cable slack and maximizing the motor life. In conjunction with the unique dual optical sensing system, the smart motor control system guarantees that the bob will stop when it contacts the material surface and eliminates the need for a mechanical brake. When the bob reaches the material surface, the SMU reverses the direction of the motor and transmits the distance value.

During the ascent of the bob, the SMU measures the amount of cable gathered and controls the speed of ascent. This ensures proper cable wrapping in the patented storage reel and tangle-free operation.

The latest SMU also includes an innovative Hall-effect sensor array that monitors the movement and position of the swing-arm that controls the absorption of slack in the cable system during descent and ascent. The SMU is smarter than ever and uses this technology to control the cable and plumb bob travel to ensure reliability of the measurement cycle, even with harsh changing conditions in the most severe applications.

The standalone versions of the SMU generate their respective 4-20mA or Pulse output in response to a measurement query, or automatically with the analog output version. The standard smart RS485 SMU communicates with the operator interface chosen for the system (HMI2 or SiloTrack PC software). These operator interfaces can perform calculations and conversions to display the data in the format desired. The SiloPatrol SE system, if so equipped, will also generate auxiliary analog and/or relay outputs. RS485 communications can be accomplished via hardwiring or with wireless transceivers.

Application guidelines

The SiloPatrol SE Inventory Management System can be used in a wide variety of applications. These include, but are not limited to, simple inventory monitoring with a standalone HMI2 display to Remote and Vendor managed inventory solutions using SiloTrack server and client software to manage inventories at multiple facilities while providing access to a virtually unlimited number of users.

Materials being monitored include a broad list of powders and bulk solids, as well as, a wide range of liquids and slurries. These include coarse/fine granular solids, powders, liquids, foodstuffs and many other substances.

Typical Applications include, but are not limited to:
Bulk Chemicals
Plastic Pellets
Plastic Regrind

Product list
  • MONITOR SMU hammer level meter (host) MONITOR's hammer level meter (6-8531-1122) Monitoring System (SUM) is based on a sturdy steel cable structure intelligent sensing system, proved that the system can be reliably used in various silos, storage tanks, storage tank level measurement, the maximum measured depth of up to 45.7 meters.

  • MONITOR AOE hammer level meter (data converter box) MONITOR hammer level meter standard intelligent monitoring system so that the system has both SMU output relays and analog output, auxiliary output box (AOE) equipped with relays and or analog output and by the HMI-based or PC SiloTrack hammer-type level meter management software programming and control.

  • MONITOR HMI hammer level meter (Human Machine Interface)

    MONITOR hammer level meter multifunction machine interface HMI control SMU operation, the analog output active (if configured), display of measured and calculated data, sensor failure diagnosis. Hammer-type level meter for low temperature -20 ¡æ environment, automatic, manual or automatic  manual three modes of operation.

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Major Product Categories£ºLevel    Pressure    Flow    Temperature    Analysis    Display    Others