I. Repair Only Software Calibration
This technique does not require the replacement of hardware; instead, it removes drift only through parameter calibration. It is the least expensive.
Typical domestic mid-to-low-end versions cost between 300 and 800 RMB.
High-end imported models: 800–2000 RMB.
About 1500–3000 RMB for a third-party metrology service with a CNAS calibration certificate.
II. Easy Hardware Repair
This technique, which just calls for contact cleaning and the replacement of common resistors and capacitors, deals with drift that is accompanied by minor hardware flaws. It is reasonably priced.
Typical domestic versions cost between 1000 and 3000 RMB.
High-end imported models: roughly 3000–8000 RMB.
III. Replacement and Repair of Core Hardware
This technique deals with drift brought on by severe ageing of fundamental components, such as power amplifier modules and crystal oscillators, which necessitates their replacement. It is the most expensive.
Typical domestic versions cost between 5000 and 15000 RMB. High-end imported models: About 10,000–30,000 RMB.
IV. Important Cost-Affecting Factors
The cost of repairs increases with the equipment's accuracy level and number of channels.
Compared to sending it back for repair, on-site calibration and repair are 30% to 50% more expensive.
The cost of repair services from foreign brands' original manufacturers is typically two to three times more than that of third-party professional organisations.
A third-party professional metrology company is the most cost-effective option for routine, minor drift calibration. In order to satisfy system audit requirements, it can finish the drift repair and acquire a compliance calibration certificate.
