Calibrating the weighing system of order pickers is a crucial process that ensures accurate weight measurements, enhances operational efficiency, and maintains product quality. As a leading order pickers supplier, we understand the significance of a well - calibrated weighing system. In this blog, we will delve into the steps and best practices for calibrating the weighing system of order pickers.
Why Calibration is Necessary
Accurate weight measurement is fundamental in various warehouse operations. Whether it's for inventory management, shipping, or ensuring compliance with safety regulations, an uncalibrated weighing system can lead to significant issues. For instance, inaccurate weight readings can result in over - or under - loading of products, which may cause damage during transportation or lead to incorrect billing. Moreover, in industries where precision is key, such as the pharmaceutical or food sectors, even a small error in weight measurement can have serious consequences.
Pre - calibration Checks
Before starting the calibration process, it is essential to conduct a series of pre - calibration checks. First, visually inspect the order picker and its weighing system for any signs of damage or wear. Look for loose connections, broken sensors, or any other physical defects that could affect the accuracy of the weighing system. Check the power supply to ensure that it is stable and within the recommended voltage range. A fluctuating power supply can cause inconsistent readings and affect the calibration process.
Next, clean the weighing platform and sensors. Dust, debris, and other contaminants can accumulate on the weighing surface and sensors over time, which can interfere with the weight measurement. Use a clean, dry cloth to wipe down the platform and sensors, and remove any foreign objects that may be present.
Tools Required for Calibration
To calibrate the weighing system of order pickers, you will need a few essential tools. A set of calibrated weights is the most important tool. These weights should be traceable to a national or international standard to ensure the accuracy of the calibration. The weights should cover a range of values that are representative of the typical loads that the order picker will handle.
In addition to calibrated weights, you may also need a calibration software or a calibration device, depending on the type of weighing system installed on the order picker. Some modern weighing systems can be calibrated using a software interface, while others may require a dedicated calibration device.
Calibration Process
Step 1: Zero Calibration
The first step in the calibration process is zero calibration. This step ensures that the weighing system reads zero when there is no load on the platform. To perform zero calibration, place the order picker on a level surface and ensure that the weighing platform is clean and free of any objects. Then, follow the manufacturer's instructions to initiate the zero calibration process. This may involve pressing a specific button on the control panel or using a software command.
Once the zero calibration process is initiated, the weighing system will adjust its internal settings to account for any offset or drift. After the process is complete, check the display to ensure that it reads zero. If it does not, repeat the zero calibration process until the display shows zero.
Step 2: Span Calibration
After zero calibration, the next step is span calibration. Span calibration involves applying a known weight to the weighing platform and adjusting the system to ensure that it reads the correct weight. Select a calibrated weight that is close to the maximum capacity of the weighing system. Place the weight carefully in the center of the weighing platform to ensure an even distribution of the load.
Follow the manufacturer's instructions to initiate the span calibration process. The system will prompt you to enter the known weight value. Enter the value accurately and wait for the system to adjust its settings. Once the span calibration is complete, check the display to ensure that it reads the correct weight. If there is a significant difference between the displayed weight and the known weight, repeat the span calibration process.
Step 3: Multiple Point Calibration
For more accurate and reliable results, it is recommended to perform multiple point calibration. This involves applying several different weights at various points within the weighing system's capacity range. Select at least three different weights, including a light load, a medium load, and a heavy load.
Place each weight on the weighing platform one by one and follow the same procedure as in span calibration. Enter the known weight value for each weight and allow the system to adjust its settings. After all the weights have been applied, check the display for each weight to ensure that it reads the correct value. If there are any discrepancies, repeat the multiple point calibration process.
Post - calibration Verification
After completing the calibration process, it is essential to verify the accuracy of the weighing system. Use a different set of calibrated weights to test the system. Place the weights on the weighing platform and compare the displayed weight with the known weight. If the difference between the displayed weight and the known weight is within the acceptable tolerance range, the calibration is successful.
If the difference is outside the acceptable tolerance range, there may be an issue with the calibration process or the weighing system itself. In this case, repeat the calibration process from the beginning or contact a professional technician for further assistance.
Regular Calibration Schedule
To maintain the accuracy of the weighing system, it is recommended to establish a regular calibration schedule. The frequency of calibration depends on several factors, such as the usage of the order picker, the environment in which it operates, and the level of accuracy required. In general, it is advisable to calibrate the weighing system at least once a year. However, if the order picker is used frequently or in a harsh environment, more frequent calibration may be necessary.
Our Order Pickers Range
As an order pickers supplier, we offer a wide range of high - quality order pickers to meet the diverse needs of our customers. Our Warehouse Stock Picker is designed for efficient stock picking in large warehouses. It features a robust weighing system that can be easily calibrated to ensure accurate weight measurements.
The 360 Spin Warehouse Order Picker provides enhanced maneuverability and flexibility, allowing operators to access products from all angles. Its advanced weighing system is calibrated to provide precise weight readings, which is essential for inventory management and shipping.
For smaller warehouses or operations with limited space, our Mini Order Picker is an ideal choice. Despite its compact size, it comes with a reliable weighing system that can be calibrated to meet the specific requirements of your business.
Contact Us for Purchase and Calibration Services
If you are interested in purchasing our order pickers or require professional calibration services, we encourage you to contact us. Our team of experts is ready to assist you in selecting the right order picker for your needs and ensuring that its weighing system is accurately calibrated. A well - calibrated weighing system is essential for the smooth operation of your warehouse, and we are committed to providing you with the best solutions.
References
- ISO 7500 - 1:2018, Metallic materials -- Verification of static uniaxial testing machines -- Part 1: Tension/compression testing machines -- Verification and calibration of the force - measuring system.
- ASTM E74 - 18, Standard Practice for Calibration of Force - Measuring Instruments for Verifying the Force Indication of Testing Machines.