This is one of the most comprehensive engineering handbooks for the application of weigh modules for tanks, vessels, silos, hoppers, conveyors and platform scales. It covers design calculations, thermal effects, piping connections, designing of support structures and calibration.

Compression Weigh Modules | Tension Weigh Modules | Strain Gauge Load Cell / S Type Load Cell | Single Point Load Cell |
Weigh modules enable quick and safe conversion of tanks, hoppers and conveyors into a scale. Built-in features ensure that safety, performance and precision are maintained. | Tension Weigh modules enable the safe conversion of suspended tanks and hoppers into a scale. Built-in features ensure that safety, performance and precision are maintained. | Strain gauge load cells are used in multiples (typically 3 or 4) in weighing systems, tank scales and conveyor scales. | Single point load cells are used individually in weighing systems, bench scales and filling and packaging machines. |
Wide capacity range 5kg .. 10t (11lb .. 22klb) For suspended hoppers and vessels Hoppers suppended from above Wide capacity range Based on S-Type laod cells from 5kg up to 10t Ideal for mid size containers Extremely easy to integrate weighing Reliable Performance Global approvals, Ex versions | Wide capacity range 5kg .. 4.4t (11lb .. 10klb) For mid-size weighing systems Process tanks, floor scales etc. Stainess Steel version Food and Pharma usage PowerCell versions For extreme accuracy requirements Reliable Performance Global approvals, Ex versions, IP69K | Wide capacity range 3kg .. 2000kg (6.6lb .. 4400lb) For small weighing systems Bench scales, filling, dosing, packaging etc. Stainess Steel Versions with up to IP69K protection Food and Pharma usage Global Standards provided as standard E.g. OIML, NTEP, FM, ATEX |
Canister Load Cell / Ring Load Cell | Tension Load Cell | Double Ended Beam Load Cells | Load Cell Junction Box |
Canister and ring load cells are used in tank and vessel scales, hopper scales, silo scales, vehicle scales and rail scales. | Tension load cells are used in suspended weighing systems such as hanging hoppers, vessels and tanks. | Double ended beam load cells are used in tank, silo, and hopper scales. They allow for low profile installations and cope with harsh environmental conditions. | METTLER TOLEDO's analog precision junction boxes are suitable for quick and simple connection of multiple analog load cells to a terminal. |
Wide capacity range 0.25t .. 300t (0.55klb .. 660klb) For heavy capacity weighing systems Tank-, silo-, hopper-, vehicle scales Coping with harsh environments Stainess Steel, IP69K versions For best reliability PowerCell versions Global Performance Global approvals, Ex versions | Wide capacity range 25kg .. 10t (50lb .. 22kllb) For suspended weighing systems Hoppers, vessels, bulkweigher etc. Stainess Steel Versions with up to IP67 protection Food and Pharma usage Global Standards provided as standard e.g., FM, ATEX, OIML, NTEP | Wide capacity range 1klb .. 250klb (0.45t .. 113t) For heavy capacity weighing systems Tank-, silo-, hopper scales Harsh industrial environment Robust, low side load effects Compliance NTEP and FM approvals | Exceptional Stability Discrete resistors - not trim pots Stable and easy to adjust By means of rotary dip switches Cope with harsh environments 316 Stainess Steel and IP69K versions available Global Standards E.g., ATEX, GMP, NSF versions |
Weigh modules enable quick and safe conversion of tanks, hoppers and conveyors into a scale. Built-in features ensure that safety, performance and precision are maintained.
Tension Weigh modules enable the safe conversion of suspended tanks and hoppers into a scale. Built-in features ensure that safety, performance and precision are maintained.
Strain gauge load cells are used in multiples (typically 3 or 4) in weighing systems, tank scales and conveyor scales.
Single point load cells are used individually in weighing systems, bench scales and filling and packaging machines.
Canister and ring load cells are used in tank and vessel scales, hopper scales, silo scales, vehicle scales and rail scales.
Tension load cells are used in suspended weighing systems such as hanging hoppers, vessels and tanks.
Double ended beam load cells are used in tank, silo, and hopper scales. They allow for low profile installations and cope with harsh environmental conditions.
METTLER TOLEDO's analog precision junction boxes are suitable for quick and simple connection of multiple analog load cells to a terminal.
Services
Maintenance & Optimization

Training & Consulting

Publications
Extensive Know-How for Weigh Modules, Load Cells and Load Sensors

Scale Design Handbook for Engineers

Evaluating Measuring Methods for Filling
Weighing is typically the most accurate and easy-to-apply measuring method for drum-, IBC- or big-bag filling. The guideline provides practical know-how to achieve the best filling results to meet customers' requirements with high-performance equipment and fast throughput.

Weighing for Process Vessel and Reactors
Weighing is typically the most reliable and most accurate measuring method for inventory control inside process vessels, reactors and tanks. The guideline provides practical know-how for achieving the best results using such equipment in batching and continuous manufacturing processes.

Weigh Modules Provide More Than Accuracy
A new generation of weigh modules significantly improves accuracy and offers "live" status information about the health of the weighing system—benefits that are not available using classic weighing technology. This white paper explains the key features of these modern weigh modules.

Best Inventory Control in Tanks and Silos
When it comes to accurate inventory control in tanks and silos, indirect measurement technologies, such as level sensors and flowmeters are usually not what works best. The white paper explains why weighing is the better solution when compared to alternative technologies.

Dos and Don'ts for Custom Scale Design and Weigh Module Installation
In providing consultancy and service for our customers worldwide, we come across common scale design and installation errors that could have been avoided with a little forethought. In this booklet, we illustrate 40 important recommendations in a simple and intuitive way that help you get the best results from our Weigh Modules.
Video
Weigh modules are proven safety
Weigh modules support scale structures that are often subjected to extraneous forces in various directions. In addition to supporting and weighing a load, weigh modules must be able to resist extraneous forces. Earthquakes, lightning and thunderstorms can severely damage a tank system. For this reason we provide comprehensive datasheets for its weigh modules that list rated, yield, and ultimate force ratings.
Achieve Higher Yields in Bioreactors with Digital Technology
Today's process engineers aim for achieving optimum process yield. METTLER TOLEDO's scalable equipment can help avoid out of specification (OOS) batches and ensure accurate long-term process monitoring. With the ideal weighing technology you can maximize bioprocess transparency.
Highest Accuracy for Tank Inventory Control
Weighing is more accurate than radar- or ultrasonic, flowmeters or level sensors for tank or silo inventory control. It is independent from material characteristics, tank shape, temperature foam or dust. The video shows advantages of weighing compared to flowmeters and level sensors.
Weigh Module Safety Tests
METTLER TOLEDO provides comprehensive datasheets for its weigh modules that list rated, yield, and ultimate force ratings for the various directions in which its weigh modules may be loaded. This provides an informed choice in selecting a weigh module for a given situation. These ratings are established during a rigorous process, which includes testing physical samples to destruction.