ISO 13373-1:2002

Overview

ISO 13373-1:2002 - "Condition monitoring and diagnostics of machines - Vibration condition monitoring - Part 1: General procedures" provides general guidelines for vibration measurement and data collection used in machine condition monitoring. It focuses primarily on rotating machines but notes many procedures are applicable to other machine types (e.g., reciprocating machines). The standard promotes consistent measurement procedures for both continuous and periodic monitoring, supporting predictive maintenance, equipment protection and reliable trending of machine health.

Key topics and technical requirements

ISO 13373-1 covers a broad set of measurement and data-collection practices without prescribing single proprietary solutions. Major topics include:

• Measurement methods: recommended approaches for acquiring vibration data (seismic and non-contacting transducers are referenced).
• Measurement parameters: guidance on the types of quantities and formats used for condition monitoring (baseline and trend data).
• Transducer selection, location and attachment: criteria for choosing accelerometers, velocity sensors or displacement probes and guidance on mounting for repeatable results.
• Data collection modes: procedures for continuous (on-line) and periodic (portable/handheld) data acquisition, including multiplexing considerations.
• Signal conditioning and interfaces: recommendations for conditioning electronics and connecting measurement systems to data processing and storage.
• Machine operating conditions: guidance on capturing data under representative operating states to ensure meaningful comparisons over time.
• Monitoring systems: descriptions of permanently installed, semi-permanent and portable systems and factors influencing system selection (criticality, cost, accessibility, safety).
• Data presentation: baseline measurements, trending, discrete-frequency analysis and high-frequency envelope analysis as tools for diagnostics.

Practical applications and users

ISO 13373-1 is intended for professionals involved in machinery reliability and condition-based maintenance:

• Reliability engineers and maintenance managers designing vibration condition monitoring programs.
• Vibration analysts and technicians performing measurements, trending and diagnostics.
• OEMs, plant engineers and maintenance contractors selecting transducers and monitoring hardware.
• Consultants implementing predictive maintenance systems to reduce downtime and prevent catastrophic failure.

Benefits include improved fault detection (imbalance, misalignment, bearing wear, gear defects, looseness), safer operations, extended equipment life and optimized maintenance planning.

Related standards

ISO 13373-1 references and complements other standards, including:

• ISO 1925 (balancing vocabulary)
• ISO 2041 (vibration and shock vocabulary)
• ISO 7919-1 (measurements on rotating shafts)
• ISO 10816-1 (evaluation of machine vibration on non-rotating parts)

Keywords: ISO 13373-1, vibration condition monitoring, machinery vibration, vibration measurement, transducer selection, continuous monitoring, periodic monitoring, predictive maintenance.