Why should We Calibrate?Calibration is required for:
- Testing a new instrument
- Testing an instrument after it has been repaired or modified
- Periodic testing of instruments
- Testing after the specific usage has elapsed
- Prior to and/or after a critical measurement
- When observations are not accurate or instrument indicators do not match the output of a surrogate instrument
- After events such as:
- An instrument has had a shock, vibration, or exposure to adverse conditions, which can put it out of calibration or damage it.
- Sudden weather changes
Risk Involved in Not Calibrating an Instrument
- Safety procedure: In case of instruments involving perishable products such as food or thermometers with area of sensitive nature, uncalibrated instruments may cause potential safety hazards.
- Wastage: If the instrument is not perfectly calibrated, it might lead to potential wastage of resources and time consumed in the operations, resulting in an overall increase in expenses.
- Faulty or Questionable Quality: If the instrument is improperly calibrated, the chances of faulty or questionable quality of finished goods arises. Calibration helps maintain the quality in production at different stages, which gets compromised if any discrepancy arises.
- Fines or litigations: Customers who have incurred damage may return the product against a full refund, which is still alright; but if they go for litigation due to damages, you could be up for serious costs in terms of reputation and restitution payments.
- Increased downtime: Poor quality of finished goods is the first indicator of disrepair in your equipment. Regular calibration programs identify warning signs early, allowing you to take action before any further damage is caused.
The calibration of instruments is the most basic maintenance requirement, which is an established procedure that every business using machinery or instruments must conduct periodically as specified in their machinery or instruments requirement.
Non-Destructive Testing (NDT)
Non-destructive testing (NDT) is a wide group of analysis techniques used in science and technology industry to evaluate the properties of a material, component or system without causing damage. Because NDT does not permanently alter the article being inspected, it is a highly valuable technique that can save both money and time in product evaluation, troubleshooting, and research.
Nondestructive Testing (NDT) plays an important role in assuring that structural and mechanical components perform their function in a safe, reliable, and cost-effective manner. NDT technicians perform the necessary tests to locate the indicators and discontinuities that may cause failures or shut downs in such systems. These tests are performed in a manner that does not affect the future usefulness of the object or material – hence, the name “nondestructive.” NDT allows for careful and thorough materials evaluation without the need for deconstruction or damage. NDT is typically used at various points in a part’s life cycle. NDT can be used prior to the use of a component for the sake of quality control. NDT is also employed while components are in use to detect service related conditions caused by wear, fatigue, corrosion, stress, or other factors which affect reliability.
NDT Technologies Include:
Visual and Optical Testing (VT) Visual Examination can be an effective way to recognize surface imperfections that could adversely affect a part or component. Visual Examiners use knowledge of how a part is manufactured, the function of the human eye, lighting requirements, and precise measuring tools to evaluate materials. Computer controlled camera systems and optical aids such as borescopes may also be used to recognize and measure features of a component.
Ultrasonic Testing (UT)Ultrasonic Examination uses high-frequency sound waves which are transmitted into a material to detect discontinuities or locate changes in material characteristics. Sound is introduced into the object being examined and reflections from internal imperfections, areas of acoustic impedance, or varying geometrical surfaces are returned to a receiver.
Magnetic Particle Testing (MT)Magnetic Particle Examination is accomplished by inducing a magnetic field into a ferromagnetic material and applying iron particles to the surface of the item being examined. Surface and near-surface discontinuities affect the flow of the magnetic field within the part causing the applied particles to gather at locations of flux leakage, thus producing a visible indication of the irregularity on the surface of the material.
Penetrant Testing (PT)Penetrant Examination is performed with a dye solution. Once applied to the surface, the dye will effectively penetrate any surface-breaking cavity. Excess solution is removed from the object. A developer is then applied to draw out any penetrant that remains unseen. With fluorescent dyes, ultraviolet light is used to make the “bleed-out” fluoresce brightly, allowing imperfections to be readily seen. With visible dyes, a color contrast between the penetrant and developer makes the “bleed-out” easy to see.
TPS offers mechanical certification services, mainly for:
Lifting equipment certification
Oil tanks certification
(tower, platforms, etc.)
Medical device certification.
In addition to civil
engineering, we offer
certification services and analysis for applications
requiring advanced finite element methods.