The following was received from the state of
Kentucky via fax:
Kentucky Radiation Health Branch was notified on 4/22/20 by a representative from International Paper of a failure of a magnetic reed switch on their Honeywell gauging system. This switch senses when the mass measurement heads are separated and closes the shutter window on the radioactive source. There are two other means of determining whether the heads are out-of-alignment that also trigger the shutter window to close if indicated. Therefore, these additional layers of protection are adequate to protect against a radiation exposure if the heads are separated. International Paper has returned the system to service with the Honeywell recommendation to replace the switch as soon as the replacement part arrives. Per [the representative] of Honeywell, with the understanding that the failed component will be replaced, the customer can continue to keep the scanner under operation with the basis weight sensor.