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Building Acoustics

Building Acoustics with Nor145 (1ch)

Single-channel building acoustics solution for ISO 16283 field testing.

Overview

The Nor145 single-channel building acoustics solution provides a fully ISO 16283-compliant approach to field sound insulation testing at a significantly lower investment than dual-channel systems. By performing sequential measurements in the source and receiving rooms, the Nor145 delivers the same standardized results as dual-channel methods while requiring only one instrument and one microphone c…

Key Features

  • ISO 16283-1, -2, -3 compliant single-channel field testing
  • Sequential source and receiver room measurement methodology
  • Airborne, impact, and facade sound insulation testing capability
  • Cost-effective single-instrument solution for building acoustics
  • IEC 61672-1 Class 1 accuracy for legally defensible results
  • Timer functions for measurement sequencing and synchronization
  • 4.3-inch touchscreen with guided measurement workflows
  • Nor850 Building Acoustics module compatibility for ISO 16283 reporting

Applications

  • Residential apartment sound insulation pre-completion testing
  • Small-scale commercial building acoustic compliance verification
  • Single-operator building acoustics surveys
  • Budget-conscious acoustic testing for smaller development projects
  • Facade sound insulation assessment per ISO 16283-3
  • Impact sound insulation testing with Nor277 tapping machine

Technical Specifications

  • Analyzer: Nor145 (single channel)
  • Standards: ISO 16283-1, -2, -3
  • Method: Sequential source/receiver
  • Sources: Nor277, Nor279, Nor283

Frequently Asked Questions

  • Can the single-channel Nor145 meet ISO 16283 requirements?
    Yes, ISO 16283 explicitly permits sequential measurements in source and receiving rooms. The Nor145 performs fully compliant testing, and Nor850 software handles the level difference calculations from the sequential data sets. Many consultants worldwide use single-channel methods successfully.
  • How do I synchronize source and receiver measurements?
    Use the instrument's timer function to set measurement start and duration, or use manual synchronization with a stable noise source. The key requirement is that the sound source remains stable while both measurements are performed. The Nor850 software handles level difference calculations from the sequential data.
  • What is the main disadvantage compared to the Nor150 dual-channel system?
    The primary disadvantage is time. Sequential measurements take roughly twice as long as simultaneous dual-channel measurements. For large projects with hundreds of test positions, the dual-channel Nor150 offers significantly higher productivity. However, for smaller projects, the Nor145 is fully capable and much more cost-effective.

Application Guide

The Building Acoustics with Nor145 (1ch) belongs to the Norsonic Building Acoustics range. See the Building Acoustics application guide for system configuration, compatible accessories, and applicable measurement standards.

Related Norsonic Products

Why Norsonic?

  • Manufactured in Norway — decades of acoustic measurement heritage; all instruments designed and built in Norsonic AS, Lierskogen, Norway
  • IEC 61672 Class 1 — highest accuracy class for professional and regulatory acoustic measurement
  • International type approvals — PTB (Germany) and LNE (France); accepted by environmental authorities across the region
  • 3-year manufacturer warranty — covers parts and labour; Norsonic Asia authorized service center support throughout the region
  • Open data formats — .nox files work with NorReview and can be exported to CSV, Excel, and third-party analysis software

Calibration and Compliance

  • All Norsonic instruments require periodic IEC 61672-3 calibration — Norsonic Asia provides factory-authorized calibration services with full DANAK-traceable certificates
  • Calibration interval: 1 year for ISO 17025 accredited laboratories; 2 years for field instruments in non-accredited applications
  • Field calibration check: use an IEC 60942 Class 1 sound calibrator (94 dB or 114 dB) before and after each measurement session
  • Loaner instruments available during calibration to minimize project downtime — contact Norsonic Asia for loaner availability

Availability & Regional Support

Available from Norsonic Asia — the factory-authorized distributor for ASEAN, GCC, and South Asia. Instrument supply includes 3-year manufacturer warranty, factory-authorized calibration services, operator training, and after-sales technical support.

  • Typical lead time: 3–6 weeks from order confirmation (ex-factory Norway)
  • Countries served: Singapore, Malaysia, Thailand, Vietnam, Philippines, Indonesia, UAE, Saudi Arabia, Qatar, Kuwait, India, Bangladesh, Sri Lanka, and more
  • Technical support: English and Arabic; response within 1 business day

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