1. Calibration Certificate of new NTI Test Instruments
Individual Minstruments calibration certificates are available on demand only and must be requested with the purchase order as they will be handled individually in the manufacturing process.

2. Calibration and Adjustment of your NTI Test Instruments
Calibration has been requested by many of our customers who need to use calibrated audio test equipment to meet their own quality system requirements. Calibration provides documented and traceable verification that instruments meet or exceed all of their published specifications. NTI recommends the calibration and adjustment of your NTI audio test instrument at latest one (1) year after purchase, thereafter following in yearly intervals. The calibration and adjustment is carried out according the international ISO 9001:2000 regulations. Please return your test instruments following the RMA procedure.

3. Costs for Calibration and Adjustment
Please ask the local NTI partner for a quotation of calibration, service and repairs.