What to Know Before Storm Season
Just when you thought snow and ice were no longer your problem, spring arrives with a new set of challenges. Warmer temperatures bring stronger storms, and with them comes the risk of lightning and electrical damage to scale systems.
Lightning strikes are one of the most common causes of truck scale breakdowns. Over time, technicians learn to recognize the warning signs and understand how electrical surges can impact scale components.
Lightning and electrical surges can damage sensitive components within a scale system or interfere with accurate measurements. This risk applies to truck scales, rail scales, and other large outdoor weighing systems.
Here’s what to know as storm season approaches.
Why Are Truck Scales Vulnerable to Lightning?
Large outdoor weighing systems like truck scales and rail scales combine heavy steel structures with precision electronics. Because these systems rely on sensitive electrical components working together, they can be vulnerable when electrical surges enter the system.
A typical vehicle scale system includes several connected components:
- Load cells that convert weight into electrical signals
- Junction boxes and signal cables
- Indicators and digital electronics
- Remote displays or scoreboards mounted above the scale
- Large steel platforms installed outdoors
These components are connected through wiring and power systems. When lightning strikes nearby, electrical energy can travel through power lines or communication wiring and reach the scale. When that happens, the surge can disrupt or damage sensitive electronics within the system.
Remote displays are particularly vulnerable. Because they are often mounted on metal poles above the scale, they can act as lightning rods during storms.
What Problems Can Lightning Cause for Truck Scales?
Even when lightning does not strike the scale directly, nearby strikes can introduce electrical surges through power lines or surrounding infrastructure. These surges can affect several parts of a scale system.
After a severe thunderstorm, operators may notice issues such as indicators that will not power on, communication errors between load cells and the indicator, unstable or drifting weight readings, or scales that fail calibration tests.
These symptoms are often caused by electrical stress affecting sensitive components such as indicators, junction boxes, communication wiring, remote displays, or load cell signals. In some cases, the damage is immediate and the scale stops working entirely. In other situations, the system may continue operating but produce unstable or inaccurate readings.
If a truck scale begins behaving differently after a storm, a professional inspection can help identify the source of the problem and restore accurate operation.
Should You Inspect Your Truck Scale After a Storm?
After major storms, it’s a good idea to pay attention to how your scale is performing.
Lightning-related damage isn’t always obvious right away. A system may continue operating while internal components have been weakened or partially damaged. Over time, these issues can lead to inaccurate readings or unexpected failures.
An inspection can help identify issues such as load cell performance problems, moisture or electrical damage in junction boxes, grounding concerns, indicator or communication faults, and potential accuracy or calibration issues.
Identifying these problems early can help prevent unexpected downtime and protect the reliability of your weighing system.
Keeping Your Scale System Ready for Storm Season
Severe weather is unavoidable, but proper installation and routine inspection can significantly reduce the risk of lightning-related scale damage.
One of the most important protections for any scale system is proper grounding. When installed correctly, grounding helps safely direct electrical energy away from sensitive electronics.
Modern load cell technologies also offer improved lightning protection. For example, METTLER TOLEDO’s PDX® load cell system and StrikeShield™ technology are designed to help protect truck scales from lightning-related electrical damage.
Regular inspections should also include checking the scale system’s grounding to ensure it remains intact and functioning properly.
We understand the importance of uptime and accuracy. That’s why we treat every service call like it’s our own.
Regular service helps confirm that your weighing system remains fit for purpose, in good condition, and weighing correctly.
Experiencing issues with your truck scale after a storm? Reach out to us today. Our technicians can help diagnose the problem and get your operation back up and running.
