Test & Measurement Equipment : Audio Test Equipment : Ampetronic - CMR3

Calibrated Induction Loop Measuring Receiver for Audio Analysers

Model: CMR3

Enables easy assessment of the system to the international induction loop standard IEC60118-4
Accuracy to within 0.5dB
5 year warranty
Compatible with most audio analysers
Applications include Measure loop coverage and spill, Assess frequency dependent loss due to metal structures, Certification of an induction loop system to IEC60118-4

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The CMR3 calibrated receiver is designed for measuring the performance of audio induction loop systems. The audio output is within +/-0.25 dB over the frequency range and where used with a suitable audio analyser such as the Minilyser from Neutrik Ltd, the frequency response and field distribution of the magnetic field from any audio induction loop system can be plotted. Calibrated to provide 0dBu output for a field strength of 400mA/m RMS, in accordance with the international induction loop standard IEC60118-4 it is an essential tool for anyone wishing to assess loop system performance for analyses or certification.

Enables easy assessment of the system to the international induction loop standard IEC60118-4
Accuracy to within 0.5dB
5 year warranty
Compatible with most audio analysers
Applications include Measure loop coverage and spill, Assess frequency dependent loss due to metal structures, Certification of an induction loop system to IEC60118-4

Measurement Signal Type - Audio
Warranty - Yes

Operating Temperature (Maximum): 45 C
Operating Temperature (Minimum): -10 C
Depth: 26 mm
Height: 112 mm
Width: 62 mm
Product Weight: 0.08 kg
Warranty (Length/Type): 5 Years
Magnetic field response - 400mA/m RMS: 0 dBu audio output (0.775V)
Magnetic field response - Field strength: Coil orientation vertical
Frequency Response: 50Hz to 8kHz +/-0.25dB
Frequency response - A-weighting filter: EN61672-1:2003 sound level meter (Switched)
Gain stability-Output variation over battery life: <0.1 dB
Gain stability-Output variation due to loading: <0.1 dB
Gain stability-Output variation over temperature range: <0.25 dB
Gain stability-Overall gain variation: <0.5 dB
Output Type: Active Balanced
Load Impedance: >600 ohm
Connector: 3.5mm stereo jack socket
Power Battery: 2 x AA alkaline
Battery Life: Approximately 200 hours
Battery condition: OK when LED illuminated

Calibrated Induction Loop Measuring Receiver for Audio Analysers 323 kb - Other

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