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Customer Service & Support

UV Support, Calibration and Service

How to Return a Unit to EIT

Changes to Duty Free Return of EIT Instruments Sent to EIT (USA) for Service

EIT recommends that all UV instruments be calibrated every 6 months. Units returned to EIT for calibration, both warranty and non-warranty do not need a RMA number. All units will be assigned a Service Number upon receipt at EIT.

Service Request Form (Excel)

Print out the Service Request Form, fill it in, and return the form with your package. Be sure to include company information, contact phone number and email information.

All packages must be sent freight pre-paid, door-to-door. If the unit is sent from outside the U.S., please be sure to identify the package as “U.S. made goods, returned for service”. You will be responsible for damage incurred from inadequate packaging. You are also responsible for insuring the unit during transportation to EIT.

Ship the unit freight prepaid, door-to-door service to:

EIT Instrument Markets
309 Kelly's Ford Plaza SE, Leesburg, VA 20175

Printable Address Label


Why Re-Calibrate Your Instrument

EIT's Customer Service/Metrology Lab handles service on all EIT manufactured UV instruments. This includes calibrations, updates and both warranty and non-warranty service. The technicians in the Metrology Lab, many of whom have years of experience at EIT, understand the design, specifications, and tolerances for each of our instruments. They follow the calibration or repair procedure for each instrument to ensure repeatable results. A lifetime historical "service and calibration record" is kept up to date and can be accessed for the life of each individual instrument. Customer Service personnel strive to provide quick turn-around time on all services.

Calibration is recommended every 6 months for all UV measurement radiometers except MicroCure. There are many reasons to have your unit evaluated and re-calibrated at the specified time interval. Our instruments are used in a number of varied applications. The UV environment is quite harsh and heat can cause damage to a number of optical components. Occasionally, accidental mis-handling of instruments can introduce microscopic scratches to the neutral density filter which causes more light to enter the optics and alters the readings. EIT technicians have access to the specially matched optics and genuine factory components that are used in our radiometers to keep your unit in excellent working condition for optimal performance.

All calibrated UV instruments have NIST traceability.


Warranty Information for Instrument Market Products



Non-Warranty Returns-EIT Instument Markets

Repair service is provided by the Instrument Markets group of EIT. Repair service on calibrated units includes calibration after the repairs are completed. EIT will notify you of repair charges prior to performing any work on the equipment.

Follow the Instructions above for Returning a Unit to EIT.


Warranty Returns-EIT Instument Markets

EIT reserves the right to evaluate units upon their return to determine warranty status. When returning the equipment under warranty, include the cable, software, and charger sent with the equipment so that EIT can verify correct operation of these accessories.

Follow the Instructions above for Returning a Unit to EIT.

EIT will notify you of repairs not covered by warranty and their cost prior to performing any work on the equipment. Equipment repaired under warranty will be returned to the user with no charge for the repair or shipping.

EIT, Inc. reserves the right to make changes in design at any time without incurring any obligation to install the same on units previously purchased.


Payment Options

Customers may pay for all services performed by either PO# (with approved terms), check drawn against a U.S. bank, or if you wish to pay with a credit card, EIT can send an invoice through PayPal which will allow you to securely pay on line with your credit card. For customers outside the US, EIT requires pre-payment prior to returning a unit. If you choose to pay by wire transfer, Customer Service will send you a final Proforma Invoice that includes all relevant charges for your particular unit(s) such as calibration, repair, shipping, and wire transfer fees. Wire transfer instructions are on the Proforma Invoice.

You can save time and have your instrument returned to you more quickly if you arrange for payment and return shipping ahead of time. If you have been granted open terms (Net Terms) by EIT, include your purchase order number, complete return shipping address and preferred method of shipping. If you wish to pay by credit card, EIT can invoice through PayPal which will allow you to securely pay on line with your credit card. Contact EIT for wire transfer information.



Calibration Certificates

All calibrated units that have been serviced by the EIT Metrology Lab are returned to customers with new calibration certificates.

Sample calibration certificates:


Calibration Charges

Please contact EIT at calibration@eit.com for pricing.

Technical Support

If you have technical questions about a specific unit, please contact EIT Instrument Markets technical support:

EIT Instument Markets

Phone: 703-478-0700

Email: uv@eit.com