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Application scenarios:
The equipment has obtained the highest certification of Class II explosion-proof level and the highest certification of temperature (T) level. It is suitable for Zone 0, Zone 1, Zone 2 with IIA, IIB, IIC environment, and explosive mixtures formed by explosive and flammable gases and air in groups T1~T6. Zone 20, Zone 21 and Zone 22 where explosive and flammable dust is mixed with air, except for coal mine methane gas, other explosive gas and dust environments. Such as: refining, oil production, gas production, chemical industry, fireworks production, food processing and storage, gas stations and other environments.
· Explosion proof mark: Exd IIC T6 Gb /ExtD A21 IP68 T80℃
· Protection class: IP68
· Product standard: Q/006-2016
· Stainless steel material design, double explosion-proof certification
| model | BL-EX307 |
| Pickup distance | 60 square meters / continuously adjustable |
| Sensitivity | -41dB |
| Frequency response | 100Hz~16KHz (1kHz@94Db SPL) |
| pointing feature | omnidirectional |
| signal to noise ratio | 75dB |
| Dynamic Range | 85dB |
| Maximum withstand sound pressure | 120dB S.P.L |
| output impedance | 600 ohm unbalanced |
| output signal amplitude | 0dBu(1kHz@94Db SPL) |
| microphone | ECM Microphone Array, -41dB |
| signal processing circuit | DSP processor, ANC AGC EQ algorithm |
| protect the circuit | Lightning strike protection, signal misconnection protection |
| Drive capability | Linear drive 0.5W, can be directly connected to DVR, headphones, active speakers |
| Connection method | 3-core soft rubber wire (red: power black: ground yellow: audio) |
| transmission cable | 3-core 0.5mm² RVVP shielded cable |
| voltage | DC regulated power supply DC 12V (9V--15V) |
| supply current | 45mA |
| Working temperature | -25℃~70℃ |
| shell material | 304L |
| Dimensions | See drawing |
| weight | 4kg |