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June / July 2018 eNewsletter 
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News on Level, Flow & Inventory Management
In This Issue
Tech Tip  ---------

Level Sensors With Hazardous Location Approvals For Dust 

SafePoint® Hazardous Location Version
Confined, dusty areas like storage hoppers, bins & silos for many powder / bulk solids materials have the potential to be combustible.

With the recent addition of the DuraVibe Series with available CSA  (North America), ATEX and IECex approvals, Monitor Technologies offers a large selection of bin level sensors that have options regarding Hazardous Location Approvals for Dust. For more details, click on the links of these sensors: 

Please feel free to contact one of our application engineers at  to see if one of these Haz Loc sensors may be a fit for your situation.

Application Review ---------

Continuous Level Measurement of Lightweight Material with Low Dielectric Constant
SiloPatrol® Cable-Based Level Sensor

Some continuous level sensor technologies can have issues with very lightweight materials since
 there is probably a lot of entrained air in the stored material that causes the dielectric to be low and sound absorption to be high.  Monitor Technologies' SiloPatrol level sensor is not affected by these situations.

Below is an example of an application: 
"I can't find a technology to reliably measure the level of my finished product. It is extremely lightweight, about 5 lbs/ft³, and nothing seems to work."

Very lightweight materials can be challenging for some continuous level measurement technologies. There can be a lot of entrapped air (voids) in the stored material that the dielectric is very low and sound absorption is high. A manufacturer of packaging material had this issue. They needed continuous level monitoring of their finished goods bins. The finished product was extremely lightweight, around 5 lbs/ft³.

The Monitor Technologies SiloPatrol® Inventory Monitoring System is a smart weight & cable based sensor system. This state-of-the-art weight & cable system is a proven problem solver and will work effectively on lighter materials around 5 lbs/ft³. In addition, the sensor is unaffected by material composition. The local Monitor representative arranged a  demonstration at the manufacturer's facility. 
Inverted Cone Style Plumb Bob
Inverted Cone Style Plumb Bob 
The electronics/mechanical design
of the sensor combined with an inverted cone-shaped weight (plumb bob) allowed the unit to detect the surface of this lightweight material without sinking into the material.  The SiloPatrol system is now used as a standard on their raw and finished goods silos.

SiloPatrol Application

About SiloPatrol®...
The SiloPatrol® SMU (silo monitoring unit) lowers a weight & cable into the silo until it contacts the material surface. Upon contact the weight & cable system is immediately retracted and the measurement is fed to the plant control system or operator interface.

Features and Advantages...  
> Weight and cable-based "Smart" level sensor Is unaffected by material composition
Measuring range up to 150 feet (46m) for powder bulk solids material levels in vessels. (Works for some liquid & slurry applications with optional ball float plumb bob)
> Combines Hall Effect sensor technology, sealed bi-directional optical sensing, a split-compartment enclosure, isolated outputs and other features to produce a reliable level measuring system designed for the harshest conditions
>  Industry-best measurement resolution of 1/100' (0.12"; 3mm)
>   Virtually maintenance-free
> Wireless Bluetooth® set-up
>  Modbus capability
> Additional versatility through selection of plumb bobs
>  Automate inventory management with the use of SiloTrack(TM) PC & Cloud or a variety of operator interface devices like the HMI2

For more product details, please visit:

Word of the Month --------------------

Gobsmacked (gob·smacked)
sounds like:

Adjective (chiefly British, informal) -
> overwhelmed with wonder, surprise, or shock; astounded
clapping a hand to one's mouth in astonishment


Adjective -

The visitors to the Grand Canyon were gobsmacked by the spectacular and vast gorge.

To translate this word into a different language using Google translate please go to
Upcoming Holiday --------------------

Happy 4th

Our Elburn, IL facility will be closed Wednesday, July 4th, 2018 in observance of the 4th of July (Independence Day).
(Normal business hours will resume Thursday, July 5th at 8 am CDT.)  

Everyone at Monitor Technologies would  like to wish you and your family a happy and safe 4th of July holiday.

Product Highlight  --------     

QuantiMass Mass Flow Measurement Sensor
In-Line Mass Flow Measurement System
The QuantiMassin-line mass flow measurement sensor is designed with the latest microwave technology and is used to continuously quantify the flow of powders & solids in pneumatic conveying and free-falling pipelines.

Features and Advantages Include: 
^ Measure flow of quantities in pneumatic conveying & free-falling processes
^  Non-intrusive, in-line / on-line sensor to continuously measure material without the use of weight scales
^  Measure material flow rates to verify blending mixture ratios (regulate dosage)
^ Latest Microwave Doppler technology to provide accurate & reproducible measurements
^  Sturdy, compact design for easy installation into existing processes
^ with most powders, dusts, pellets and granulars up to 0.75 inch (2cm) QuantiMass Ultra
 Available with a controller for localoperator interface and  data logging(ULTRA version) or with output through a DIN-Rail transmitter to provide communication with an existing control system (PRO version)
Click Here for more details on  Quanti Mass

T o confirm that the  Quanti Mass  would be a fit for your application, please feel free to complete an application questionnaire and contact our App Support Team at:
Download QuantiMass application questionnaire

For more information on all of Monitor's solids flow solutions, please visit:

In-Line Mass Flow Measurement Application Examples:  
Mass Flow Image 1
Mass flow sensor in a dry sand application 
Mass Flow Image 2
  Mass flow measurement for coal dust burner injection 
  Mass Flow Image 3
Mass flow sensor in a plastic powder application 
Mass Flow Image 4
Mass flow sensor in a cement application 
Mass Flow Image 5
Mass flow measurement for tobacco
    Mass Flow Image 6
Mass flow measurement for 
feed pellets 


About Monitor 


Monitor Technologies, LLC

Practical solutions at every level!

Celebrating 60 Years  

For 60 years we have been providing high quality, reliable product experiences for the worldwide powder and bulk solids markets, backed by trusted customer service.


We believe that a practical solution is not just a plain, basic, mundane idea, but rather, a creative innovation wrapped in common sense, delivering the "exact" value that you require. 
Contact us today and let us put our solutions to work for you! (level measurement blog)


Tel: 1-800-601-5946 in US & CA or 1-630-365-9403 Worldwide 

Elburn, IL 60119 USA


> Find a Local Representative in the US at  


> Locate an International Distributor at
DustAlarm ES _ DustTrend ES