30 likes | 122 Views
NPDgamma Liquid Hydrogen Target Safety Review Warning Alarms and Interlocks. At LANL November 29-30, 2005.
E N D
NPDgamma Liquid Hydrogen Target Safety Review Warning Alarms and Interlocks At LANL November 29-30, 2005
A Plan is to have three-tiered hierarchy of status indicators for the system:Normal: The system operating as designed with all interlocks and sensors active and within set ranges.Warning: - Some sensor(s) are at values between low and high trip points. Local indication (target computer gives warning). - Target operator attention is required but automatic shutdown action is not needed.Alarm: - Some sensor(s) have exceeded their high trip levels. - Automatic safety and/or shutdown systems take over. - Local indications; horn and flashing light on FP12, area alarm at ER2/ER1, CCR has alarm and CCR gives alarm announcement at Lujan- All personnel should leave ER1/ER2.