A new dust and heat-resistant microphone for engine noise testing.
The MI15-SWHT microphone housing is made entirely of stainless steel, and the sound inlet features a stainless-steel mesh that repels dust particles and water.
The internal electronics and microphone capsule are heat-resistant up to 150°C and comply with the Class 1 tolerance limits defined WS3F and IEC 61672.
The MI15 microphone are fitted with BNC connector female, allowing standard BNC-BNC cables to be used.
The measurement microphone can be calibrated using the 4010, CA111-sound calibrator or other suitable sound pressure calibrators.
serves as a dust, water and EMC barrier.
Class 1 free-field | in accordance with IEC 61672 |
|---|---|
Transducer type | Capacitive pressure transducer |
Diameter | 1/4″ |
Polar pattern | Omni |
Frequency range | 20 Hz – 20 kHz |
Sensitivity @ 1 kHz | 30 mV/Pa |
Max. SPL for 1% THD at 1 kHz | 138 dB Peak |
Inherent noise | 43 dB(A) |
Output impedance | <50 Ohm |
Current consumption | 2-20 mA |
Power supply | 18 V DC to 30 V DC |
Bias: | 12.5 Volt |
Temperature range, operation | -20°C to +150°C |
Heat resistant | up to 180 °C |
Diameter | 7 mm ± 0.05 mm |
Length | 67 mm 1/4″ sleeve diameter over the entire length |
Weight | 16 g |
Connector | BNC (fem.) |
The MI15-HLSW-TNC microphone is specially designed for harsh industrial environments.
Its robust stainless steel housing with a stainless steel mesh at the sound inlet offers excellent protection against electromagnetic interference, particles and splashing water.
It is suitable for high sound pressure levels of up to 160 dB, such as those that occur during explosions, arc flashes and gunshots.
The MI15 microphone has a short overall length of 65.5 mm and a TNC connector.
The power supply is provided by an IEPE constant current source 4mA.
The MI15 microphone can be calibrated with a microphone calibrator at 114 dB SPL and a 1/4″ adapter.
serves as a dust, water and EMC barrier.
Class 1 free-field | in accordance with IEC 61672 |
|---|---|
Transducer type | Capacitive pressure transducer |
Diameter | 1/4″ |
Polar pattern | Omni |
Frequency range | 20 Hz – 30 kHz |
Sensitivity @ 1 kHz | 1 mV/Pa |
Max. SPL for 1% THD at 1 kHz | 160 dB(C) Peak |
Inherent noise | 46 dB(A) |
Output impedance | <50 Ohm |
Current consumption | 2-20 mA |
Power supply | 18 V DC to 30 V DC |
Bias: | 12.5 Volt |
Temperature range, operation | -20°C to +80°C |
Heat resistant | up to 110 °C |
Diameter | 7 mm ± 0.05 mm |
Length | 67 mm 1/4″ sleeve diameter over the entire length |
Weight | 16 g |
Connector | TNC (fem.) |
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