How often must an analogue tachograph be checked at an approved calibration centre?

How often must an analogue tachograph be checked at an approved calibration centre?

• A. Every two years
• B. Every six years
• C. Every five years
• D. Every year

Answer: (A)

Regular accuracy checks keep tachograph readings trustworthy. An analogue tachograph records driving time and rest on a chart using a clock and a speed signal, and these parts can drift over time. To ensure the device still meets the official standards, it must be verified at an approved calibration centre. The standard verification interval is every two years, with the centre checking the clock, speed input, and overall calibration against reference instruments and issuing a certificate if it’s within tolerance. This two-year cycle balances the need for accurate records with practical maintenance, and it’s the required schedule for routine checks. Daily driver checks are important for obvious issues, but they don’t replace the formal calibration every two years.

Regular accuracy checks keep tachograph readings trustworthy. An analogue tachograph records driving time and rest on a chart using a clock and a speed signal, and these parts can drift over time. To ensure the device still meets the official standards, it must be verified at an approved calibration centre. The standard verification interval is every two years, with the centre checking the clock, speed input, and overall calibration against reference instruments and issuing a certificate if it’s within tolerance. This two-year cycle balances the need for accurate records with practical maintenance, and it’s the required schedule for routine checks. Daily driver checks are important for obvious issues, but they don’t replace the formal calibration every two years.