Yes, the calibration failure repair of Agilent E5062A network analyzer usually requires operation by professional certified personnel. This is because the repair process involves using dedicated equipment for dust removal, module replacement and troubleshooting of internal components, which demands professional technical knowledge and operational qualifications to ensure the accuracy and reliability of the instrument after repair. For such calibration failure issues of Agilent E5062A, our company 匠析生物 can provide professional solutions. We specialize in offering overall after-sales repair and maintenance services for experimental instruments including Agilent brand, covering repair, cleaning maintenance, etc. Our services also include providing related consumables, spare parts, and application consulting, which can efficiently help you resolve instrument problems and ensure the normal operation of your experiments.