WHAT IS SCALE CALIBRATION?
Calibration of a scale is a procedure in which a licensed scale technician uses a known cal test weight certified by the State of North Carolina Bureau of Weights and Measures, to test and adjust the response of a mechanical or electronic weighing system to the following tests; The display indicator must show zero when there is no weight on scale. When a known weight is applied the indicator must display the exact amount of applied weight within a specific tolerance. When weight is applied or removed incrementally the scale must display the weight equal to that on the scale within the specified tolerance mentioned above. The increasing load test and decreasing load test along with corner testings would be ideal in many situations.
We are sometimes asked how to test or check accuracy or how often to perform scale calibration and the answers can vary depending on your situation. To check the scale you simply put an item on the scale and see what it weighs. Ideally this would be a certified test weight. Another example might be if you own a portable truck scale, you should probably calibrate that scale every time you move it from one location to another location. Or at least check it with a known weight to make sure the accuracy is still acceptable.
Historically, a calibration has been defined as a process of comparing and recording indicated values obtained from a measuring instrument with the corresponding values obtained when using measurement standards. For example, when calibrating a bench scale, the indicated value from viewing the scale display can be compared with the value of the test weight. This can be done over a range of weights, and a calibration table can be developed that records indicated values from the scale and corresponding values obtained from the different test weights used.
Scale calibration of a scale is a procedure in which a certified scale technician uses known weight certified by the State of North Carolina Bureau of Weights and Measures, to adjust the response of a mechanical or electronic weighing system to the following tests; The indicator must show zero when there is no weight on scale. When a known weight is applied the indicator must display the exact amount of applied weight. When weight is applied or removed incrementally the scale must display weight equal to that on the scale display.
All scales ideally need to be calibrated when first placed into service to insure accurate operation. Any scale will drift away from its original calibration in time. Wear of mechanical components, age and degree of use, all contribute to calibration drift. Many states require that any scale used to buy or sell based on weight must be NTEP approved and inspected and certified as to it’s accuracy.
And some more on how the scale calibrates itself: it is a DW-200B 200g scale asking for me to calibrate the zero point and a 200.0g point on the scale. It doesn't tell me the weight of an object unless it's calibrated, but I've been able to estimate that 40 nickels reads 1.4g on what should equal 1.0g (via a dollar bill). Many states require that any scale used to buy or sell based on weight must be NTEP-approved and inspected and certified as to its accuracy. Normally, we recommend calibration every quarter by a trained scale technician with certified test weights. There are several factors to consider when deciding on frequency of scale calibration testing. To calibrate a digital scale, set it on a flat surface and choose a weight. Turn the scale on and go into calibration mode. Put the weight on the scale and wait for it to calculate the total weight. If the weight is off, hit the calibration button and wait for it to recalibrate. Make adjustments if needed. Many people place the scale in the bathroom, but any flat surface at home will do. After placing it on the ground, turn the device on and press the platform lightly until you see the zero pattern appear on the scale’s screen. The scale will turn off by itself, which means that you can start weighing yourself as it is already calibrated.
Description
Walz Scale Calibration Services Overview
Calibrate Scale With Quarters Stainless Steel
Walz Scale has been providing the very best calibration services for our customers for over 50 years. We have invested in the very best equipment and trained the best technicians to deliver the highest quality calibration services.
Calibration of a scale is a procedure in which a certified scale technician uses known weight certified by the Weights and Measures Department to adjust the response of a mechanical or electronic weighing system to the following tests:
- The indicator must show zero when there is no weight on scale.
- When a known weight is applied the indicator must display the exact amount of applied weight.
- When weight is applied or removed incrementally the scale must display weight equal to that on the scale display.
Procedure For Calibrating Scales
All scales ideally need to be calibrated when first placed into service to insure accurate operation. Any scale will drift away from its original calibration over the course of time. Wear of mechanical components, age, and degree of use all contribute to calibration drift. Many states require that any scale used to buy or sell based on weight must be NTEP-approved and inspected and certified as to its accuracy. Normally, we recommend calibration every quarter by a trained scale technician with certified test weights.
There are several factors to consider when deciding on frequency of scale calibration testing. Ask yourself — is the scale operating in a hostile environment? How much is this equipment being used? Is it being used one, two, or three shifts, or only several times a week? Are there Quality Control parameters which must be maintained such as ISO 9000? How long can your company afford to allow your scale equipment to operate with a possible error in its weight readings? After factoring all the information above, many customers feel calibration service once a quarter is ideal.
Walz Scale will assist in setting up your custom scale service agreement program by taking into consideration all of the above questions. It is recommended that scales be calibrated quarterly. Walz Scale will perform the tests as prescribed in the service agreement statement.
Calibration and ISO 17025 Accredited certificates
Regular calibration ensures balances, scales, and other measurement equipment behave accurately. With routine calibration, you can measure safely and avoid the costs of inaccurate measurements. We help you determine which calibration procedures and frequencies of service are required for your equipment to stay compliant. With our graphical calibration reports, our factory-trained service technicians provide you with consistent, traceable certificates in printed and electronic formats.
Calibrate Scale With Quarters Floor Plans
Truck Scale Calibrations
Calibrate Scale With Quarters For Sale
Walz Scale is the only local provider that can provide truck scale calibrations up to 80,000 lbs. We operate multiple heavy-capacity semi truck units that each hold 41,000 lbs of certified test weights. We carry this large amount of weights so that we can provide a true build up to for your truck and rail scales to 80,000 lbs. We are proud to be the only local provider that can provide this level of service.