Document: NUREG-0800
Document ID: 13fda301-b942-4542-a493-fc1e4c60019b
Document Type: srp
Title: PROCESS AND EFFLUENT RADIOLOGICAL MONITORING INSTRUMENTATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070710438.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.5
CFR Part: 
CFR Title: 

Content:
the limits of the plant’s TS and SREC (i.e., not for the purpose of mitigating the consequences of a DBA), then a monitor providing the actuation signal should be designed and qualified to criteria consistent with those of the actuated system. This appendix neither establishes, nor changes in any manner, the design and quality assurance criteria established elsewhere for ESF or ESF-related systems or monitors. The design guidance set forth in this appendix provides reasonable assurance that monitors used to provide initiation signals for actuation of systems to control the release of radioactive materials in effluents, but not required to mitigate the consequences of a DBA, are designed, constructed, installed, tested, and maintained on a level commensurate with their intended function. This appendix sets forth minimum requirements and is not intended to prohibit the implementation of equivalent design codes, standards, or quality assurance measures other than those indicated herein. 11.5-29 Revision 4 - March 2007 2. Definitions Radiological Effluent Monitor: A device that removes a representative sample from the effluent stream, detects and quantitatively measures the radioactive materials present in the sample, discharges the sampled medium back to the effluent stream, and transmits the measurement data to a central point. Monitoring System. A system consisting of one or more remote monitors; a centrally located cabinet or console where data from the monitors is received, recorded, and displayed; and the necessary interconnecting cables, power supplies, pumps, motors, alarms, recorders, display panels, relays, and other auxiliary components. 3. Design Guidance Design and quality assurance criteria for radiological effluent monitors should be consistent with the design and quality assurance criteria applicable to the systems actuated by a signal from the monitors. Monitors providing signals for the actuation of ESF systems should be designed and qualified to