Products
MPA 668-812
Explosion proof certified specialized microphone k
Meets the requirements of IEC 61094-4 for WS2F measurement microphones
Comply with IECEx explosion-proof standards and pass Ex ic IIB T4 Gc certification
Comply with EN/IEC60079-0 EN/IEC60079-11
Comply with GB3836.1/GB3836.4
Overview
MPA 668-812 free field measurement microphone kit is a special microphone kit with explosion-proof certification, which meets the requirements for use in hazardous areas and explosive environments and can ensure safe use in hazardous gas environments; It consists of a microphone MP 668 and a preamplifier MA 812, with the microphone and preamplifier detachable; Among them, MP 668 is a 1/2-inch pre polarized free field measurement microphone used to measure the undistorted true sound pressure of the microphone before it is placed in the sound field.
The MA 812 preamplifier is a preamplifier powered by a constant current source, characterized by high input impedance, low background noise, and a wide frequency response range. It can be used in conjunction with the MP 668 measurement microphone. The output interface adopts BNC connectors, and the main body is made of stainless steel material, which ensures good toughness and long-term storage