Nor1294 Phase Verification Coupler
Phase verification device for sound intensity probe calibration.
Overview
The Nor1294 Phase Verification Coupler is a precision acoustic device for verifying the phase and amplitude match between the two microphones in a sound intensity measurement probe. Compliant with IEC 61043 requirements, the Nor1294 ensures that the microphone pair used for sound intensity measurements maintains the tight phase matching necessary for accurate intensity calculations across the full…
Key Features
- IEC 61043 compliant phase verification
- Precision acoustic coupler for matched exposure
- Phase and amplitude match verification
- Field-usable compact design
- Compatible with Nor1290 sound intensity probe kit
- Essential quality assurance for sound intensity work
- Verifies measurement system before each session
Applications
- Sound intensity probe phase verification per IEC 61043
- Pre-measurement calibration checks for ISO 9614 testing
- Quality assurance for sound power determination
- Sound intensity measurement system validation
- Laboratory probe pair qualification
- Automotive NVH sound intensity testing preparation
Technical Specifications
- Standards: IEC 61043
- Compatibility: Nor1290 probe kit
- Verification: Phase and amplitude match
Frequently Asked Questions
- How often should I verify phase match?
Phase verification should be performed before each measurement session and whenever probe components such as microphones or spacers are changed, as required by IEC 61043. - What does a failed verification indicate?
A failed verification indicates the microphone pair is out of specification and may need recalibration, replacement, or cleaning. Proceeding with mismatched microphones will produce inaccurate sound intensity results. - Which instruments and probes are compatible?
The Nor1294 is designed to work with the Nor1290 sound intensity probe kit and the Nor150 dual-channel analyser. It accommodates the 1/2-inch microphone pairs used in the Norsonic sound intensity measurement system.
Application Guide
The Nor1294 Phase Verification Coupler belongs to the Norsonic Calibration range. See the Calibration application guide for system configuration, compatible accessories, and applicable measurement standards.
Related Norsonic Products
- Nor1290 Sound Intensity Probe Kit — Lightweight and rugged sound intensity probe for ISO 9614 sound power measuremen…
- Nor150 Sound and Vibration Analyser — Nor150 dual-channel Class 1 sound and vibration analyser for building acoustics,…
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
← All Products | Download Datasheet | Find Local Distributor | Calibration Services