Document: NUREG-0800
Document ID: 5989239b-cda8-4832-8a1c-ff0c221fca34
Document Type: srp
Title: Draft Revision 6 – August 2015
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1515/ML15159A799.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
acceptable as-found band and acceptable as-left band. • Basis for calibration intervals. • Basis for assumptions regarding instrument uncertainties and a discussion of the method used to determine uncertainty values. • Description of the provisions for the control of measuring and test equipment used for calibration of the instrument. • Description of the program and methodology used to monitor and manage instrument uncertainties, including drift. A documented basis for the safety-system setpoint should be available for staff review. Documentation should conform to the guidance in RG 1.105. The description of the instrument channel in accordance with ISA-S67.04-1994, Part I, should include: • Description of the functional and performance criteria for the initiation and execution of the safety functions at the setpoints. • Instrument specifications, including range, accuracy, repeatability, hysteresis, dynamic response, environmental qualification, calibration reference, and calibration intervals for each instrument type. • Instrument loop diagrams showing all hardware elements of the instrument loop(s). • Instrument and tubing layout drawings and installation details showing locations and elevations of instruments and tubing relative to a reference datum, as well as the points where the instrument interfaces with the monitored process. • For digital instrumentation, the configuration database for the instrumentation functions, and identification of digital elements (hardware and software) where error could be introduced into the measurement-for example, errors that could result from analog-to-digital or digital-to-analog conversion or from numerical methods used in the software (e.g., curve fitting). BTP 7-12-7 Draft Revision 6 – August 2015 The description of assumptions in accordance with ISA-S67.04-1994, Part I, should include the environmental allowances (temperature, pressure, humidity, radiation, vibration, seismic, and electrical) for the