The device history records for the hdf-3500 device and pad-pak were reviewed and this confirmed that all manufacturing and quality checks and test had been successfully completed.The hdf-3500 passed ¿out qat from heartsine technologies on the 2nd august 2017.Unable to confirm the reported fault.The device was reported to have issued a flashing red status indicator.Throughout the investigation, the green status led flashed as normal and the red status led did not illuminate outside of specification.Information from the device memory showed the device failed no self-tests, which is the normal condition required to activate the red status indicator.It is a policy of heartsine to not refurbish devices that have been returned from the field, therefore this device shall be retained and replaced with a new hdf-3500.
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