San Diego Calibration Services - Experts in Instrument Calibration & Repair Services

Calibration is the process of establishing the relationship between a measuring device and the units of measure. This is done by comparing a device or the output of an instrument to a standard having known measurement characteristics. Measurements can be useless without calibration. You can buy or build a new instrument and have trust that it is giving correct information, but each and every measuring system can change with time. Although calibration can cost money, NOT calibrating will eventually cost a lot when an important measurement is wrong. The result can be catastrophic. Regulations and standards often require periodic calibration to increase the trust that customers place in the measurements provided by an organization. Regulations also require traceability, and the calibration must be able to be related to national standards. Calibration can be done by yourself but it requires a great deal of expertise and can be very expensive. Even if simpler tools can be done without hiring out, you still might need to use a commercial service to achieve traceability. Using a professional for calibration, such as Texso Calibration is the method of choice.

WHAT IS CALIBRATION?

Calibration is the process of adjusting the output or indication on a measurement instrument to agree with a value of the applied standard, within a specified accuracy. For example, a thermometer could be calibrated so the error of indication or the correction is determined, and adjusted showing the true temperature in Celsius at specific points on the scale. In very simple terms, the length of a stick can be calibrated by comparing it to a standard that has a known length. Once the relationship of the stick to the standard is known, the stick is calibrated and can be used to measure the length of other things. An evaluation of the measurement uncertainty is part of the calibration process, for the quality of the calibration needs to be known and quantified. For results to be accepted by outside organizations, calibration measurements must be "traceable" to the internationally defined measurement units. Establishing traceability is completed by a comparison to a standard which is either directly or indirectly related to national or international standards.

Quality management systems within a company will call for calibration when:

• A new instrument is introduced
• When a specified time period has elapsed
• When a specified usage or operating hours has elapsed
• When an instrument has had a shock or vibration which potentially may have put it out of calibration
• Whenever observations appear questionable

The process of calibrating, and establishing the relationship between a measuring device and the units of measure has many useful applications within a large number of industries.

CALIBRATION SERVICES AT TEXSO INSTRUMENTS:

Texso Calibration is a main leader in calibration services, inspection of electronic measuring, and also test instruments in San Diego. Our missions is to "maintain and exercise customer service, as a leader in the distribution of test and measurement to professionals, along with providing high quality calibration services to meet all needs." All calibrations are traceable to N.I.S.T. and ISO standards. We calibrate various instruments including monitoring devices, analytical equipment, flow instruments, meters, sensors, gauges, totalizers, and valve positions indicators. We also calibrate pressure and vacuum instruments such as pressure sensors or gauges, meters, transducers, and vacuum pumps. Temperature instruments including thermocouple, RTD or thermistor type devices, humidity instruments, multimeter, electrical meters (analog or digital), calipers, micrometers, and any power supplies are included in our services. Almost all major dimensional, electronic and related technologies will be covered, and for any specialized or custom instruments, a calibrated procedure will be developed specifically for that item. Our goal is to provide any service your business might need, and deliver exceptional customer service in the process.

Texso Calibration adheres to a high standard of discipline and quality and strive to be the leader in accuracy, accountability and accessibility of services. Each calibration will be at a competitive price, providing a full recall system and data sheet for each calibrated item. Each calibration will include:

• NIST Traceability
• ISO 17025
• ISO 9001:2000
• High Quality Printed Labels
• Out-of-Tolerance Data
• Online Access to Your Certifications

Texso Calibration Features and Standards

As a leader in the calibration field, Texso offers the following features:

• Direction by a Professional Engineer registered in Metrology by the State of California.
• Professionally trained technicians in electronic and mechanical calibration.
• Quick turnaround by a full staff -- from sales to service.
• Full custom database for data sheets, history, invoices, and computerized recall for upcoming due date.
• Service by all major carriers, with pick-up and delivery in some areas.
• Rush calibration service, i.e. overnight and 3-day service
• Monthly notification when instruments are due for calibration
• Bar coded instrument and document tracking

Examples of Standards:

• Multi-Function Calibrators
• Super Micrometers TM
• Measuring Bridges
• Gage Blocks
• Temperature Calibrators
• Laser Micrometers
• RTDs
• Pressure Calibrators
• Block Calibrators
• Measuring Wires
• Thickness Guages
• Pressure Guages
• Flowmeters
• Infared
• Dividers
• Length Standards
• Voltage Standards
• Height Gages
• Standard Resistors
• Torque Standards
• Standard Capacitors
• Dead Weight Testers
• Standard Inductors
• Thread Set Plugs

What are Calibration Instruments?

Calibration instruments use electrical signals or physical quantities to calibrate sensors and meters. Devices that produce electrical signals can serve as precise meters for sensor calibration, or send output signals to other devices. Common calibration signals include AC voltage, DC voltage, AC current, and DC current. Calibration instruments that produce a pulse stream, pulse range, or frequency range are also available. Most manufacturers specify calibration instruments with a range of signal values that includes minimum and maximum amounts. Devices that produce physical quantities are often traceable to national and international standards.

Several form factors exist for calibration instruments. Hand-held devices are designed to be operated manually, while held in one hand. Portable devices are not necessarily hand-held, but may include wheels, handles, or a carrying case for ease of movement. Fixed instruments are designed to be mounted and/or used in one place. Benchtop and panel-mounted devices are included in this category. Modular calibration instruments can be interfaced to different sensors or input ranges. Some devices use batteries for full operation, not just backup. Others require the use of a modem or RF transmitter. Many types of calibration instruments exist and it is important to analyze the properties to choose the correct one.

Selecting calibration instruments requires an analysis of physical, electrical, process, environmental, and thermodynamic properties. Physical properties indicate whether instruments can be used to calibrate devices that sense or measure acceleration, vibration, acoustics, displacement, position, force, load, or torque. Electrical properties indicate whether calibration instruments can be used to calibrate devices that sense or measure attenuation, capacitance, charge, inductance, power, resistance or impedance. Calibration instruments that sense and measure process, environmental and thermodynamic properties are used with many variables. Examples include conductivity, liquid flow, gas concentration, humidity, moisture content, dew point, oxygen reduction potential (ORP), potential hydrogen (pH), and resistivity. Specialized products are used to calibrate resistance temperature detectors (RTD), thermistors, and thermocouples. Many types of calibration instruments exist and it is important to analyze the properties to choose the correct one.