SILOWEIGH II Pro – silo, vessel or bin weight with touch screen interface

SiloWeigh II Pro pairs the L-Strain sensors with a touch-screen display, to measure silo level by weight.  Capacity is 6 vessels displayed as bar-graphs or a trend-graph of each individual vessel.  A special display shows weights of past deliveries to detect shortages.
Most silos on legs and skirted silos use the L-Strain silo weight sensor. However, SiloWeigh can use pressure sensors to measure liquid level, load cells for high accuracy and weldable gauges for special applications.SiloWeigh II can also use any 4-20 mA analog sensor, allowing you to gain more value by recording temperature or moisture values.
The L-Strain silo weight sensor compensates for the expansion of the underlying metal, making it extremely stable on steel legs and skirts as well as being applicable to aluminum and stainless steel silos.
SiloWeigh vessel inventory systems are self-install kits. You can do it yourself from scratch, and we provide the critical tools. Read on and see how simple it really is, or ask for our installation training presentation. If you wish, we can do it all for you; just call us.
Can SiloWeigh be installed on any type of silo leg? Is there any limit to the silo size or capacity? Will it wear out in a few years? How easy is SiloWeigh to install? This page answers these questions and others.

The accurate silo level and inventory system for bins, tanks and storage vessels that you can install yourself

SiloWeigh II Pro tells you the contents of any silo, feed bin, tank or storage vessel. Better than silo level measurement, SiloWeigh measures the actual weight of the vessel and contents to give a true picture of the amount on hand.  And it costs less than a set of high-end level sensors.


Never run out of material again

Visual warning at Reorder and Low silo level, plus audible warning if you need it.  As a consequence, you can prevent loss of production and missed deliveries . . . More features
  • Displays one to six vessels on standard 3.5″ (102mm) or 5.7″ (145mm) display screens.  More than 6 vessels?  Less than 4?  Check our other models here.
  • SiloWeigh’s L-Strain sensors are temperature compensated.  They cancel the effects of the structure’s expansion with temperature while measuring the compression due to load.  Typical accuracy ±1 to 2% of full scale when all four legs are gauged. Skirted silos – expect ±5% of full scale.
  • Mount the legs on Load Cells for even higher silo and bin weight accuracy (0.1%) (see Applications page).
  • All-weather. Sensors, wiring and junction boxes meet NEMA-4, IP66.  You can set up the dust and spashproof industrial touch screen display system in a convenient indoor location.
  • Radio connection between silos and display when it is difficult to run a cable.
  • No moving parts.  Because of this, expect long life and reliability.

SiloWeigh II records the silo level and inventory of up to 6 vessels, detecting the fill amount

Eliminate the risk of overfilling

Blown filters and the ensuing environmental hazards are a thing of the past.  You can warn when filters need changing too . . . More Touch Screen and other features
  • For one vessel only, SiloWeigh Basic is the budget choice if you don’t need SiloWeigh II Pro’s features.
  • For more than 6 vessels, consider SiloWeigh.Net, handles up to 32 vessels on one Internet display.
  • Silo level/bin weight display changes color as alarm points are passed, to emphasize alarm condition.
  • Symbols show level at a glance, % full and actual weight or volume in your choice of units (tons, gal. etc.).
  • Accepts analog level sensors in place of weight sensors.
  • Special calculation handles divided silos, stacked silos and ‘shared-frame’ vessels by measuring each leg separately.  No other manufacturer offers this option, which preserves the full accuracy of weight measurement.
  • Add your liquid tanks, level, temperature or moisture sensors for extra value.

The silo or bin weight is shown by a bar-graph and you can touch this to see a trend graph that measures deliveries

No complaints at this point.  The system is working great and has helped us identify some significant gaps between what we should be receiving and what we actually did receive”  Chris Allensworth, Nestle, Jonesboro, NC. Nov 2018

Eliminate delivery shortages

Ability to check every delivery, even weeks ago, and measure delivery amounts against the weight ticket.  Consequently, puts you in command of the situation . . . More Trend Graph and related features
  • Trend graph of readings (see picture below) is zoomable to any time period and calculates delivery amounts.
  • Scroll forward or backward in time to see any part; no limit.
  • Check hourly and daily usage, shown directly on display.
  • Advanced predictive filter eliminates errors caused by rapid weather changes while responding instantly to fast fills and discharges.  No other manufacturer offers even a simple weather filter.  Without it you can expect variations from 10% up to 50% of full scale lasting several hours each day.
  • Digital connection to transmitters at each vessel, connected by single cable to reduce installation time.
The silo level trend graph allows you to touch two points to measure the amount added or used

Touch screen operator interface

Use of a touch screen as the operator interface gives many advantages, and at a lower overall cost for 3 or more vessels . . . Physical and remote viewing Features
  • Dust and splashproof NEMA-4 (IP65) plastic wall-mount cabinet.
  • CE and UL/CUL certified.
  • Programmable digital I/O allows connection to horns, lights etc. and analog outputs connect to control systems.
  • Optional memory stick records all values, transferable to Excel sheets for fill calculations etc.
  • Connect all 4 sensors separately.  Diagnostic display allows you to bypass a bad sensor until you can replace it.

SiloWeigh II Pro's cabinet and touch screen are dust and splashproof for use in rough environments

“This plant is the only one across Canada that has never run out of material or had a silo spill since SiloWeigh.Net was installed in 2015” says Barry Metzner, manager, Lafarge-Holcim, Greater Vancouver, BC, Canada area, July 2018


Optional network and WiFi viewing and control

View and control all functions from any computer on the local network or from Android tablets and phones . . . Read more
  • Network cable connects to touch screen.
  • Display and control from any computer on local network.
  • Or from any phone or tablet within WiFi range.
  • Low cost app is downloadable, easy to set up.

SiloWeigh II Pro can be displayed on any local computer or by WiFi on any local phone or tablet

Best service in the business” says Greg Roache of Gainey’s Concrete Products. May 2017
“It is accurate to 1 to 2%.  Very nice system, works well.” says Sam Santos of ABC Group (injection molded parts). August 2019
Inventory control used to be a nightmare.  Since we installed SiloWeigh.Net, it’s a breeze”.  Ray Young, Oldcastle Building Products, Ogden, UT. Installed 2017 with 2 local silos by cable, one 200 ft away, one 1000 ft away and one at 1 mile, all connecting by radio link.

All systems:

  • Install and calibrate the system yourself.  We deliver a kit with complete instructions. All necessary cables are provided and are color coded. Calibration is straightforward, using the delivery weight ticket as reference.
  • Alternatively, we have trained installation experts at various US and Canadian locations – call us for details.
  • Whether you need a silo level meter, a tank level monitor, bin weight indicator or silo inventory control, SiloWeigh is the most accurate system with the most features.
  • If you can’t use all six of SiloWeigh II’s display channels, add  liquid tank volume, temperature measurement or moisture measurement.  They all give you a better ROI. Read more.

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