Data Weighing Systems is ISO/IEC 17025 accredited by Laboratory Accreditation Bureau (L-A-B). L-A-B is a full member of ILAC, which means that our accredited calibrations are recognized throughout the world. All of our calibration weights and other standards are traceable to the appropriate SI unit through NIST.
About our Quality System
In 2000, Data Weighing Systems was an early adopter of the 17025 standard in our industry and has adopted the standard not only to meet customer requirements but as a basis of continual improvement in our processes. By incorporating proficiency testing, statistical analysis and uncertainty estimates of all our calibration process we are always working towards and achieving more precise measurements.
The process of calibration is simply the comparison between a known standard, such as our weights, with the unit under test. However in order to achieve accurate results from any measurement device the unit under test also needs to be properly adjusted and maintained.
Our focus on the mechanical fields of weight, force and torque allows us to have the expertise necessary to perform proper adjustments, repair the equipment we calibrate, and perform proper preventative maintenance. In addition, we are able to provide the expertise necessary to ensure that equipment is being used in a way that maximizes both efficiency and accuracy.
Scales - Many consider scale calibration to be a simple task: put a weight on the scale and record what it reads. However understanding how repeatability, linearity and shift errors affect the weighing process requires experienced technicians and with the backing of an organization committed to continual improvement. DWS has been working with scales since 1973, and we bring this experience to every scale calibration we perform.
Balances - The precision of balances requires additional understanding and experience. Maintaining weights necessary to calibrate analytical balances requires much more than sending standards out for calibration once a year. We analyze the minute weight change in our standards over time and adjust our calibration cycles to ensure that our calibration weights have the highest level of accuracy.
Microbalances - With resolutions of 0.1 μg or (0.0000001g), microbalances are more accurate than the tolerance of calibration weights. In order to accurately calibrate these units, we've expanded on the manufactures' procedures to maximize the accuracy and reduce the uncertainties of the calibration process.
Crane Scales - While smaller cranes scales can be tested with weights, higher capacity units require specialized calibration presses. At Data Weighing Systems, we have the unique capability of calibrating crane scales up to 250,000 LBS.
Dynamometers - Like crane scales, dynamometers (sometimes referred to as tension links) require calibration presses in order to reach the higher capacities. At DWS, we are able to calibrate all makes and models of dynamometers up to 250,000 lbs.
Wheel Weighers - Wheel weighers, also known as weigh pads, allow a truck or aircraft to be weighed by placing one under each wheel. At Data Weighing Systems, we have the capabilities to calibrate wheel weighers up to 60,000 LBS, using our calibration press with NIST traceable load cells. By testing all the way to the capacity of the scale we ensure that you are able to achieve accurate results.
Load Cells - Load cells are the sensors used in scales; however they are also used to monitor forces in all sorts of applications. Utilizing weights and high precision load cell standards, we use ASTM E4 calibration procedures to accurately calibrate all types of load cells in tension and compression up to 250,000 LBS. We offer mV/V, 0-10 volt and 0-20mA calibrations.
Force Gauges and Torque Transducers - Torque transducers are actually very similar to scales and force gauges in both technology and the calibration process. Using our calibration weights in conjunction with a calibrated torque arm, we apply known torque to the transducer and perform the required adjustments.
Torque Tools - Utilizing our extensive range of torque transducers, we are able to calibrate all of the various types of torque tools. Since we calibrate our own standards, we have a high degree of control over the accuracy of our process. Our calibration methods are based on the ISO 6789 standard for calibration of torque tools.
Moisture Analyzers - Loss-in-weight moisture analyzers consist of a weighing element and a heating element. In order for accurate results, both elements need to be calibrated. At Data Weighing Systems, we have the most comprehensive range of temperature disks available to allow us to calibrate moisture analyzers from every major manufacturer.