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Home Expertise Library Buying Guide: Weigh Modules and Load Cells
Guide

Buying Guide:
Weigh Modules and Load Cells

Guide

8 steps to select the right weigh modules for your application

Weigh Module Buying Guide
Weigh Module Buying Guide

Compression weigh modules are used to create scales when standard scale products are not available. The scales created can be customized platform or conveyor scales, tanks, hoppers or reactor vessels. Needless to say, weigh modules must be carefully chosen to provide the required performance over their lifetime.

A new weigh module buying guide helps engineers to select the right weigh module and buy load cells for their application. It walks readers through the following 8 steps:

  1. Calculating weighing capacity
  2. Determining mechanical and electrical topology including load cell wiring
  3. Providing safety during installation and operation
  4. Complying with accuracy requirement
  5. Complying with hazardous zones
  6. Complying with environmental conditions
  7. Facilitating fast and economical installation including easy load cell wiring
  8. Determining calibration method (very important when you buy load cells)
 

In the guide, you will find tips to select the right weight scales, information about load cell input voltage and load cell wiring, bidirectional load cell solutions – and more! Download your copy of the weigh module buying guide today.

Frequently asked questions when trying to find the right weight scales…

Why is Weighing Ideal for Inventory Control in Tanks?

You can choose from a wide variety of measuring methods for inventory control of solids or liquids in tanks and silos. However, accuracy can depend on material characteristics and environmental conditions. Non-contact distance and level measurement techniques as well as almost all flowmeters only provide a volume measurement.

In contrast, weighing technology provides a reliable and accurate result for all conditions and every material. Weighing is better because:

  • It is effective regardless of tank design, material distribution and cavities.
  • Measurement is independent from temperature, dust, foam and waves.
  • Calibration is easier and more reliable than with volumetric technologies.

To see why weighing is ideal for inventory control in tanks and get tips to select the right weigh module, click here. Additionally, to see for yourself why weighing is the better solution when compared to alternative technologies, explore service offerings for tank scales.

 

Intelligent Weigh Modules Provide Higher Accuracy

How do Intelligent Weigh Modules Provide Higher Accuracy?

Future-oriented weighing technology for automation is based on intelligent load cell solutions such as POWERCELL® from METTLER TOLEDO. The central element of these intelligent load cells is a microprocessor for signal processing integrated with analog-digital conversion. The analog-to-digital conversion is performed directly at the physical process or “actual working point". This eliminates the error-prone transmission of analog values over distance and environmental factors such as temperature changes and vibrations. In addition, the microprocessor corrects the linearity error of mechanics and electronics.

What kind of weigh modules and load cells does METTLER TOLEDO offer?

METTLER TOLEDO offers weigh modules with approvals for all globally relevant standards, including:

  • Capacities: load cells from 110 kilograms up to 100 tons with manuals for load cell wiring
  • OIML, NTEP, ATEX, FM, IEECx approvals as standard
  • Compliance with EHEDG and NSF guidelines
  • Hardware available in carbon steel or 304 or 316 stainless steel
  • Stainless-steel load cells with IP68/IP69K protection
  • Connectivity to fieldbus: PROFINET, PROFIBUS, EtherNet/IP, CC-Link


Download the weigh module buying guide for help to select the right weigh module for your application.

How do I select a load cell?

Select the right weigh module or load cell by first understanding the needs of your application in terms of precision and maximum weight. Then you can compare those requirements with the load cell capacities and precision offering. For help with selecting the right equipment, download our weigh module buying guide.