6 Cleaning, maintenance, repair
Nardalert S3
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6.2 Performing calibration
Narda recommends recalibrating the Nardalert S3 mainframe 2270/01
after 4 years latest and the sensor modules 2271/XX after 2 years. For
new devices, this recommendation applies from the date of commission-
ing by the customer. Depending on the conditions in which the device is
used, you may independently decide to define other calibration intervals.
For calibration, send the device to your Narda sales partner. You
can find the Narda sales partner responsible for you on the Narda
!
All NS3 mainframes need to be returned to their local calibration facility
at least once every 4 years for replacement of their internal clock battery.
There are no operator accessible controls or written procedures
available to perform this critical step. If batteries are not changed they
may pose a safety hazard as well as damaging the NS3 itself.
6.3 Repair
Repairs may only be performed by qualified specialists.
For more information, please contact your Narda sales partner or
6.4 Verification overview
Simplified block diagram
