Interface Calibration and Repair Services:

With 50+ years of combined experience calibrating and repairing load cells and 95,000+ calibrations performed annually, Interface is dedicated to providing the best possible service to our customers. Our A2LA ISO 17025 accredited calibration lab, located in Scottsdale, AZ, understands the criticality of proper calibration and traceability, and has the experience and expertise necessary to meet your exacting needs.

We offer the broadest capability and highest quality of calibration and repair services available and can service equipment from just about ANY manufacturer for the following devices:

  • Load Cells
  • Load Pins
  • Load Buttons
  • Load Washers
  • Rotary Torque Transducers
  • Reaction Torque Transducers
  • Crane Scales and Dynamometers
  • Rod End Load Cells
  • Tension Links

Calibration Service

Calibration is important based on many different factors, including continued performance, safety, and compliance with ISO or industry specific standards. Interface’s standard recommended calibration interval is 12 months. The frequency of calibrations should be determined by the customer based on the following factors that may affect measurement accuracy:

  1. Measurement quality and allowable tolerance range
  2. Level of stress to which the equipment is subjected
  3. Stability of past calibrations
  4. Required measuring accuracy
  5. Quality assurance requirements

Once these factors are established and the stability of past calibrations are reviewed, the customer may then establish the calibration frequency:

  1. Per ASTM E74 Standard
  2. Normal Use – Calibration every 12 months.
  3. Severe Use – Calibration on a quarterly to monthly basis.
  4. Special Service – As recommended after consultation with an Interface Technical Service team member.

Repair Services

Interface offers repair services for damaged or suspect load cells with highly trained and experienced repair technicians. Each load cell is fully inspected and tested in order to diagnose the problem(s). Following our evaluation, we will provide you with a list of issues and our recommendation(s), proposing the most cost effective solution for you.

  • Complete complimentary evaluation prior to repair and calibration
  • Connector replacement on any manufacturers’ load cell (subject to connector availability, excludes welded connectors)
  • 7-10 business day turn-around time (includes calibration).

To learn more or request calibration or repair services, please complete the form below. In order to complete this form you will need the following:

  • The model name and/or number of each device.
  • The serial number of the item(s) you want services.

Once submitted, you will receive an RMA (Return Material Authorization) number, which is required to accompany all devices sent in to the service department and help track the progress of your request. 2-3 business day expedited services available for an additional fee of $140.00/device, please call to confirm service length if repairs are required.

Interface Calibration Services

Recalibration Services offered for Tension, Compression, System Calibrations, ISO 376, ASTM E74.


Services Offered Standard ANSI Z-540.1
ASTM E74 ISO 376
Tension & Compression
Dual Bridge
System Calibrations
Extra/Custom Points Available
Interface NMI Traceable Cal Cert
A2LA / ISO 17025 Accredited
Lower Load Limits
Calibration Coefficients
Calibration Curve Fit Graph
ISO 376 Class 0.5  <500 lbf
ISO 376 Class 1  >500 lbf


Services Offered Standard ANSI Z-540.1
ASTM E2428
Clockwise & Counter-Clockwise
Dual Bridge
System Calibrations
Extra Points
Interface NMI Traceable Cal Cert
A2LA / ISO 17025 Accredited
Lower Load Limits
Calibration Coefficients
Calibration Curve Fit Graph