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The Dytran model 2180C is a piezoelectric charge mode microphone with a high sensitivity of 600 pC/psi, designed to measure high-intensity gas-borne sound pressure levels up to 191 dB, while reliably operating in high temperatures up to +500°F (+260°C).

Design of the model 2180C utilizes a special high-temperature piezoceramic material which generates a charge signal in response to sound pressure acting on the stainless steel diaphragm. The sensor is acceleration compensated to reduce the risk of spurious ambient vibration signals adding to signal output. In addition, the model 2180C features internal case ground isolation to avoid EMI/ground loop interference, as well as complete Faraday shielding of the sensing element to prevent AC noise pickup from external electrodynamic sources. This internal electrical isolation means that the sensing element is always electrically isolated from the mounting surface, and even from the diaphragm.

The model 2180C features a stainless steel construction, TNC axial connector and a 1 1/8-12 mounting thread. Units are also hermetically sealed for reliable operation in high-humidity and dirty environments.
Unit of Measure

Specifications

Brands

 N/A Dytran

Weight

 N/A 155 g5.5 oz

Housing Material

 N/A Stainless Steel

Diaphragm Material

 N/A Stainless Steel

Diameter

 N/A 0.980 in2.489 cm

Sensing Element

 N/A Ceramic, Compression

Sensitivity

 N/A 600 pC/psi87 pC/kPa

Measuring Pressure Range

 N/A 10 psi69 kPa

Maximum Pressure

 N/A 600 psi4137 kPa

Resonant Frequency

 N/A 21 kHz

Electrical Isolation

 N/A 1

Maximum Shock

 N/A 2000 g19613 m/s²

Temperature Range

 N/A -60 to +500 ºF-51 to +260 ºC

Thermal Coefficient of Sensitivity

 N/A 0.06 %/°F0.12 %/°C

Sensor Type

 N/A Charge Mode

Environmental Seal

 N/A Hermetic

Recommended Mounting Accessories

 N/A One (1) model 6620 brass pressure seal (supplied)

Features

 N/A +500 ºF (+260 ºC) Operation Base Isolated Charge Mode High Sensitivity

Applications

Applications

 N/A Gas-borne high intensity sound pressure level measurements Industrial Turbine Pressure Monitoring Turbine Combustor Dynamics

Quality Management System

Quality Management System

 N/A Dytran Instruments Quality Management System meets the requirements of the following standards:
  • ISO 9001:2008 and AS 9100 Revision C and in accordance with requirements of AS9104A
  • ISO/IEC 17025:2005 and ANSI/NCSL Z540-1-1994
  • ATEX DIRECTIVE 2014/34/EU for electrical and mechanical equipment for use in explosive atmospheres