DC.R340TT.MAN.001—01—User Manual SDT340TANKTEST EN
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SDT recommends this simple procedure, which can solve potential problems encountered by users.
15. Recommended calibration intervals
SDT recommends annual recalibration
of SDT instruments and annual verification of sensors to benefit
from its limited lifetime warranty. This periodicity is coherent with the observed long-term stability of
SDT electronic equipment’s.
However:
• For new equipment leaving the factory the initial period is extended to 15 months
instead of 12 (to avoid any possible discrimination between users due to transportation time,
customs clearance, etc.).
• SDT recognizes that each customer may have their own Quality Assurance Standards and
internal requirements. If a customer has established a Quality Assurance Program that
includes a documented procedure for measurement deviations, and if an instrument and the
relevant sensor show acceptable deviations and do not show signs of physical damage, then
calibration periodicity could be extended to two years.
• Third party organizations having more authority (Class, or State Administrations) may have
defined their own regulations for example 6 months, or 2 years calibration interval:
by evidence, local legally applicable regulations supersede SDT rules.
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