Calibration of length and plane angle measuring instruments
We provide calibration of measuring instruments based on accreditation certificate (no. K-093) in the quantities of length and plane angle in accordance with norm ISO/IEC 17025:2017. Calibrations are performed in our laboratory and, where appropriate, also at the place of use of the instrument.
Our calibration services enable you to:
- Minimize the risk of decisions based on non-conforming measurements
- Plan calibrations based on defined lead times and conditions
- Obtain reliable measurement results with stated measurement uncertainty
- Calibrate on most precise standard in Slovakia
What is Calibration?
Calibration is an operation that establishes, under specified conditions, a relationship between the values indicated by a measuring instrument and the values realized by standards.
Calibration in the field of length and plane angle is used to verify metrological characteristics of measuring instruments and to determine their measurement errors.
In practice, this means that:
- the instrument is compared with a standard or reference measuring system of higher accuracy
- measurement errors (indication errors) are determined
- measurement uncertainty is evaluated
- metrological traceability is ensured
- results are reported in a calibration certificate
Scope – What We Calibrate
We calibrate measuring instruments and systems in the field of length and plane angle within our accredited scope.
Detailed measurement ranges and expanded uncertainties are specified in our accreditation documents.
Gauges and Standards
Length & Plane Angle
Gauge blocks
Gauge blocks (sets and individual blocks) in lengths covered by the accredited scope.
Line scales
Line scales (line measures) for length control.
Cylindrical gauges and reference rollers
Cylindrical gauges and reference rollers for dimensional verification.
Setting rings and snap gauges
Setting rings and snap gauges for diameter control.
Thread gauges
Thread gauges for external and internal threads (thread rings and thread plug gauges).
Thread measuring wires
Wires used for the three-wire method of thread measurement.
Radius templates
Radius (fillet) templates for radius checking.
Feeler gauges and calibration foils
Feeler gauges and calibration foils for thickness gauges.
- Full ranges in
- accreditation scope
Measuring Instruments
Dimensional measurement (length)
Calipers
Calipers (length calibration; including scale graduation where applicable within the accredited scope).
Tape measures and measuring tapes
Retractable tape measures and survey/measuring tapes.
Plane angle
Flat and cylindrical squares (90°), mechanical and optical protractors
Snap gauges and micro snap gauges
Snap gauges and micro snap gauges within the accredited scope.
Dial indicators and inductive probes
Dial indicators and inductive probes (including scale graduation where applicable within the accredited scope).
Outside micrometers
Outside micrometers within the accredited scope.
Micrometer heads and depth micrometers
Micrometer heads and depth micrometers within the accredited scope.
Micrometer calipers
Micrometer calipers (fixed and folding types) within the accredited scope.
Knife-edge straightedges
Knife-edge straightedges in lengths covered by the accredited scope.
Inside micrometers
Inside micrometers (two-point and three-point) within the accredited scope.
- Full ranges in
- accreditation scope
Instruments and Systems
Dimensional measurement (length)
Length measuring machines and vertical length measuring machines
Length calibration by direct comparison with gauge blocks in defined ranges.
Coordinate Measuring Machines (CMM)
Calibration of length characteristics by direct comparison with gauge blocks and setting rings.
Microscopes and profile projectors
Calibration using comparative methods with a line scale (line standard) within the accredited scope.
Surface plates and straightedges
Calibration up to 10 m by direct measurement using a laser interferometer (on-site where appropriate).
- Full ranges in
- accreditation scope
Accreditation & Documentation
Kalibra s.r.o. is accredited by the Slovak National Accreditation Service (SNAS) as an ISO/IEC 17025 calibration laboratory in the field of length and plane angle.
For full details of our dimensional calibration capabilities, including measuring ranges and expanded measurement uncertainties, please see our accreditation documents. These documents are available for download and can be used as part of your quality system documentation and audits.
Request a Calibration Quote
- Select the right calibration scope for each instrument
- Plan calibration intervals and logistics
- Integrate calibration results into your quality system
If you need reliable calibration for your gauges and measuring instruments, our metrology team will help you:
You can also contact us directly by phone or email to discuss your specific requirements or upcoming audit needs.
FAQ
How can I send gauges and instruments for calibration?
You can choose the option that suits you best:
- Personal delivery – bring your gauges and instruments directly to our laboratory in Detva.
- Courier service – pack the items securely and send them to our address with your order or purchase order attached.
- Collection by agreement – for larger batches, we can agree on pick-up and transport arrangements.
Please make sure each item is clearly identified (internal ID, serial number or description) so that we can correctly link it to your calibration certificate and records.
How long does calibration usually take?
Standard lead time for calibration is typically 10–12 working days from the moment the gauges and instruments are received and the order is confirmed.
Actual lead times may depend on:
- the number of items and their type
- current workload in the laboratory
- whether additional services are requested
If you have a specific deadline or shutdown period, let us know in advance so we can propose an appropriate schedule.
Do you offer express calibration?
Yes. Express calibration is available by prior agreement for urgent cases.
- Express jobs are typically completed within 3 working days.
- An express surcharge (e.g. 50% of the standard price) applies, depending on scope and timing.
If you require express calibration, please mention it in your enquiry so we can immediately check feasibility and capacity.
How will my gauges and instruments be returned?
After calibration is completed, you can choose:
- Personal collection at our laboratory, or
- Return shipment to your specified address via courier service.
Along with your gauges and instruments, you will receive the corresponding calibration certificates and an overview of all calibrated items as per your order.
What information do you need from me to prepare a quotation?
To prepare an accurate quotation for calibration, please provide:
- a list or overview of gauges and instruments (type, quantity, measuring range),
- any relevant manufacturer or model details,
- whether you require standard or express calibration,
- preferred timing or deadlines,
- and your invoicing and contact details.
You can send this information by email with an attachment (e.g. Excel list).