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Test systems

Nor850-MF1

Measurement system

The Nor850-MF1 is a scalable multi-channel measurement front end for professional acoustic measurements. It combines up to 10 synchronised measurement channels in one rack and can be expanded with additional racks or connected Nor145 and Nor150 sound level meters when larger systems are required.

Designed for building acoustics, room acoustics, sound power, appliances and general analysis, the Nor850-MF1 gives consultants, laboratories and manufacturers one flexible platform for complex measurement tasks.

Together with Nor850 software, the system provides a complete workflow from measurement set-up and synchronised data acquisition to analysis, documentation and standards-compliant reporting.

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Illustration-Nor850-MF1-SoundPower
Complete Sound Power solution

From laboratory testing to field measurements

Combined with the Nor850 Sound Power module, the Nor850-MF1 provides a complete multi-channel solution for determining sound power levels in accordance with relevant field and laboratory standards.

The rack enables synchronised measurements from multiple microphone positions, while Nor850 handles the measurement workflow, calculations, corrections and report generation. This makes the system suitable for product noise testing, machinery measurements and formal documentation in both controlled laboratories and practical field environments.

  • Supports sound power measurements in accordance with applicable ISO 374x standards.

  • Can be configured with the required microphone channels, signal sources and accessories.

  • Suitable for outdoor machinery measurements, including ISO 6395 applications when configured with the necessary equipment.

Read more about Sound Power
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Complete Building Acoustics solution

Measure source and receiving rooms simultaneously

For building acoustics, the Nor850-MF1 can be configured as a complete multi-channel system for measuring source and receiving rooms at the same time. This is especially useful in laboratory set-ups, where repeatability, speed and control of the measurement chain are essential.

With Nor850 Building Acoustics, the system supports workflows for airborne sound insulation, impact sound insulation, façade measurements and related building acoustic tasks. Output channels can also be included for signal generation and controlled excitation, allowing loudspeakers, tapping machines or other sources to be integrated directly into the measurement set-up. For laboratory applications, the system can be combined with the Nor265A Microphone Positioning System, enabling both fixed-point measurements and automated moving microphone measurements within the same workflow.

  • Synchronised source-room and receiving-room measurements.

  • Efficient laboratory workflows for repeated test set-ups.

  • Input and output channel configurations.

Read more about Building Acoustics
Scalable multi-channel architecture

The Nor850-MF1 supports up to 10 measurement channels per rack and can be expanded with additional racks when higher channel counts are required.

Rack channels, Nor145 sound level meters and Nor150 sound and vibration analyzers can operate together within the same measurement system, giving users a flexible setup for field measurements, laboratory testing and large-scale acoustic investigations.

Traceable measurement chain

Measurement data is generated directly in the Nor850-MF1 hardware or connected sound level meters. The PC functions as a control, display and processing unit, and with the sensor database it is easy to quickly switch between different sensors, microphones and setups. Combined with the multi-channel calibration tool, the process of keeping microphones calibrated and verified becomes seamless.

This allows the computer to be replaced or upgraded without affecting the integrity of the measurement system.

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Key benefits

  • Up to 10 synchronized channels per rack

  • Expandable with multiple racks

  • Combine rack channels with Nor145 and Nor150 instruments

  • Dedicated workflows for acoustic and vibration applications

  • Traceable and calibratable measurement chain

  • Customizable to every need

  • LAN connection for easy connection and management

  • Suitable for field measurements and accredited laboratories

  • Optional signal generator outputs for selected channels

  • Scalable platform for complex acoustic investigations

Designed for growth

 

Start with the configuration you need today and expand when requirements change.
Additional channels, measurement racks and portable sound level meters can be integrated into the existing system, protecting the investment while providing a clear upgrade path for future projects.

Features
Standards
Specifications
Downloads
Features

  • Modular multi-channel measurement system with up to 10 measurement channels per mainframe.

  • Distributed signal processing architecture with dedicated DSP in every channel.

  • Supports both traditional microphone systems and IEPE-based sensors.

  • Simultaneous Class 1 sound level measurements and real-time frequency analysis.

  • Flexible system expansion using additional Nor850-MF1s, Nor145 and Nor150 instruments.

  • Optional integrated signal generators for excitation.

  • Single-range operation with up to 137 dB dynamic range and 140 dB peak capability.

  • Real-time 1/1 and 1/3 octave analysis from 0.4 Hz to 20 kHz.

  • LAN-based operation for local, distributed and laboratory measurement setups.

  • Supports both mains and 11-16 VDC power for laboratory and field applications.

  • Designed for building acoustics, sound power, appliance noise and general acoustic measurements.

Standards

  • ASTM C423-17

  • ASTM E90-16

  • ASTM E336-20

  • ASTM E1007-21

  • BS 354

  • BS 11654

  • BS 16283-1,-2

  • BS 10140-1,-2,-3

  • BS 10848-2

  • BS EN ISO 140-4,-7

  • BS EN ISO 10140-4,-7

  • BS EN ISO 16283-1,-2

  • DIN 4109-4,-11

  • DIN 52 216

  • DIN EN ISO 10052

  • DIN EN ISO 10140-1,-2,-3

  • DIN EN ISO 10848-2

  • DIN EN ISO 16283-1,-2,-3

  • DIN EN ISO 3382-2,-3

  • EN 16205

  • EN 1793-1:2012,-1:2017,-2:2012,-2:2018

  • I.S. 16283-2

  • I.S. EN ISO 16283-1

  • ISO 140-3,-4,-5,-6,-7,-8,-16,-18

  • ISO 354

  • ISO/DIS/CD 354:2020

  • ISO 10052

  • ISO 10140-1,-2,-3,-4

  • ISO 10848-1,-2

  • ISO 11654

  • ISO 15186-2

  • ISO 16283-1,-2,-3

  • ISO/DIS/CD 16283-1/16717-1

  • ISO/DIS/CD 16283-2/16717-2

  • ISO 3382-2,-3

  • ISO 3741

  • ISO 3743-1,-2

  • ISO 3744

  • ISO 3745

  • ISO 3746

  • ISO 3747

  • ISO 3822

  • ISO 6395

  • ISO 6396

  • ISO 6926

  • ISO 9614-1,-2, General

  • JIS A 1417

  • JIS A 1418-1,-2

  • KS F 2810-2

  • NF S31-074

  • SIA 181:2006, :2020

  • SS 25267

  • SS 25267:2015

  • Directive 2000/14/EC

  • Directive 2006/42/EC

Specifications
Constructed in accordance with the following standards

  • IEC 61672-1 Class 1

  • IEC 61260 Class 1

  • IEC 60651 Type 1

  • IEC 60804 Type 1

  • ANSI S1.4 Type 1

  • ANSI S1.11 Class 1

  • ANSI S1.43 Type 1

  • DIN 45677

  • Modular multi-channel system

  • Up to 10 measurement channels per main unit

  • Support for up to 2 Nor850-I/O modules

  • Each channel includes its own DSP and signal processing

  • Distributed processing reduces PC workload

  • Can be combined with Nor140, Nor145, and Nor150 instruments

Up to 10 simultaneous measurement channels
7-pin LEMO or BNC (IEPE)
Support for traditional microphone preamplifiers and IEPE sensors

Polarization voltage: 0 V or 200 V
Sampling frequency: 48 kHz
Measurement range: 0.3 µV to 7 V RMS
Maximum signal level: ±10 V peak

  • Real-time 1/1-octave analysis

  • Real-time 1/3-octave analysis

  • Frequency range:

    •  0.5 Hz – 16 kHz (1/1 octave)

    •  0.4 Hz – 20 kHz (1/3 octave)

  • IEC 61260 Class 1 digital filters

  • Channel isolation: 130 dB

  • Dynamic range up to 137 dB

  • Peak measurements up to 140 dB

  • Single measurement range with no range switching

  • White noise

  • Pink noise

  • Band-limited noise

  • Sine wave signal

  • Analog generator output

  • Maximum output voltage: ±10 V

  • Gigabit LAN (RJ45)

  • USB service port

  • External trigger input/output

  • AC monitor output

  • Signal generator output

  • 90–240 VAC
  • 11–16 VDC
Typical power consumption:
  • 2 W main unit
  • 1.2 W per measurement channel
 
Operating Conditions
  • Temperature: −10 °C to +50 °C
  • Humidity: 5–90% RH
 
Storage Conditions
  • Temperature: −30 °C to +60 °C
  • Width: 350 mm
  • Depth: 305 mm
  • Height: 113 mm
  • Weight (10 channels): 5.2 kg
Downloads for Nor850
Software
Nor850 Software - version 4.2.260302
exe
02.03.26
Download
Nor850 Software - version 4.1.250704
exe
09.07.25
0.11gb Download
Nor850 Software - version 3.2.241008
zip
06.11.24
Download
Nor850 Software - version 3.1.221130
zip
22.12.21
Download
Nor850 Release note - version 4.2.260302
pdf
02.03.26
Download
Nor850 Release note - version 4.2.251112
pdf
14.11.25
Download
Nor850 Release note - version 4.1.25070
pdf
01.07.25
Download
Nor850 Release note - version 4.1
pdf
06.05.25
Download

Applications

What are you going to measure?

Environmental noise

Environmental noise

Reliable noise monitoring with sound level meter, stand-alone terminals or large-scale systems.

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Building acoustic

Building acoustic is about the sound that travels between rooms - something you'd rather avoid.

Room-acoustics

Room Acoustics

Room acoustics is about the sound quality in a room, for example in a concert hall.

Nor150-sound-intensity-jorge(800x800px)

Sound Intensity

Measure sound level and direction, even in challenging acoustic environments.

Sound-Power

Sound Power

Sound Power is about how much sound energy a source emits per unit of time, measures in watts.

Noise at Work

Noise at Work

Noise measurement at the workplace for easy mapping and documentation of noise levels

Get your quote

 
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N-3409 Tranby, Norway

+47 32 85 89 00
info@norsonic.com

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