Types of Calibration

Keithley offers three types of calibration.

Request a quote for calibration on your Keithley Instrument.

ISO17025 Accredited Calibration
If you’re concerned about quality standards and want to receive the most comprehensive cal data, then use Keithley’s ISO17025 Accredited Calibration service. This service is available on most newer Keithley products. These calibrations include a calibration certificate and measurement report, indicating "before" (as found) and "after" (as left) data with measurement uncertainties. All measurements are traceable to the appropriate national and international standards organizations. To learn more, read our guidelines on how we perform our accredited calibrations.

Calibration with Data
If you’re not concerned about the extra value offered by an accredited cal, Keithley Calibration with Data, available on most products, includes a calibration certificate and measurement report indicating "before" (as found) and "after" (as left) data. All measurements are traceable to the appropriate national and international standards organizations. Most of these calibrations are performed in compliance with calibration standard ANSI/NCSL Z540-1. (Please note that before data is not typically available on products in need of repair.)

Standard Calibration
If you need a high-quality cal but not the data, Keithley’s Standard Calibration includes a calibration certificate that verifies that your product meets its original performance specifications. Although no data reports are provided, we follow the same cal procedures as we do for our calibrations with data.

Want to save more? Purchase a Calibration Contract or enroll in our Complete Service program.

Need faster service? Benefit from our Uptime Programs.

Why Calibrate?

Why Keithley Calibration?

ISO17025 certificate, scope, and guidelines

Why Calibrate?

You want to keep your customers. You can invest in routine calibration or you can spend your money trying to regain your reputation after you’ve disappointed your customers due to poor quality or missed deliveries. Improperly-maintained test equipment can cost you the trust and business of your customers. Avoid unscheduled downtime, prevent costly quality problems and product recalls, and keep your equipment in peak shape by calibrating it.
Electronic components drift as they age and are exposed to stress. Without periodic calibration, the measurements made by these components are compromised. Calibration aligns these components to a standard of known accuracy, thereby ensuring that your instrument is making accurate, repeatable readings. The result: consistent quality of your processes and consistent satisfaction of your customers.

Electronic components drift as they age and are exposed to stress. Without periodic calibration, the measurements made by these components are compromised. Calibration aligns these components to a standard of known accuracy, thereby ensuring that your instrument is making accurate, repeatable readings. The result: consistent quality of your processes and consistent satisfaction of your customers.

Why Keithley Cal?

Quality is important to you. You understand the importance of calibration, but now you’re faced with a choice of calibration providers. Don’t make the wrong selection. A poorly-performed calibration may save you money now, but it can cost you later in the form of poor quality, downtime, and unhappy customers. Who you choose as your calibration provider depends on what’s important to you. Keithley is world-renowned for our quality and measurement expertise. Why trust your equipment with someone else? You realize many benefits when you choose Keithley as your calibration partner:

• Quality. Keithley is registered to ISO 9001:2000, and our Metrology Services Laboratory is accredited to ISO17025, the international standard for calibration laboratories. You can be sure that we follow the strict guidelines and requirements to ensure you’re receiving the best cal possible.y.
• Accuracy. Our calibration equipment is among the most advanced in the industry. This means that your product is calibrated to a high level of accuracy. Our measurement uncertainties are among the best in the business to assure you that your product is making the most accurate readings it can.
• Speed. We offer fast turnarounds (typically 3-5 days) on our calibrations so that your downtime is minimized. Express Service and Loaner Units are also available.
• Comprehensiveness. We take more measurements than many calibration providers, providing greater assurance that your product is making accurate, repeatable readings. The more thoroughly the product is tested, the more confidence you can have. Conversely, a calibration performed with a limited number of readings can lead to a false “pass” result.
• Updates. Calibrations are available with product updates to ensure that your product contains the latest reliability and performance enhancements.

Guidelines for ISO17025 Accredited Calibrations

Unless you specify otherwise, the following will apply to all 17025-accredited calibrations performed by Keithley Metrology Services:

• We shall choose the calibration method most appropriate for the product. It is based on the data point tests that are recommended in our Operating or Service manuals.
• Units will be checked against published 1-year specifications (2-year specifications for models 2303, 2304A, and 2306). The results of these tests are supplied in a “before” (as found) measurement report.
• Unless we are specifically told never to adjust or always to adjust, it is our policy to adjust an instrument if the measured value is greater than 70% of the1-year specification (2-year specification for models 2303, 2304A, and 2306), or when we deem it to be in the best interest of the customer.
• If adjustments are made, units will be verified again and an “after” (as left) measurement report provided.
• If no adjustments are needed, the initial measurement report will also serve as the outgoing report (“before/after” measurement report).
• We provide measurement uncertainties for each measured value.
• The Pass/Fail criteria are 100% of the published specification, regardless of the measurement uncertainty.
• Verification to 90-day specifications is available upon request.
• Any non-accredited measurement points will be identified on the measurement report.
• A calibration due date shall not be specified on the calibration label that we apply.