YDD7.4(A) mine dynamic disaster acoustic and electrical monitoring instrument integrates ground sound, high-frequency electromagnetic radiation, low-frequency electromagnetic radiation monitoring, and microseismic monitoring functions. It can be used for coal mine rock burst monitoring and early warning, metal mine rock burst monitoring and early warning, coal and gas outburst monitoring and early warning, water gushing-out monitoring and early warning, mining impact monitoring, roof collapse monitoring, and mining crack evolution monitoring. It can also be used for safety and stability evaluation of large concrete structures such as deep tunnels, bridges, and slopes.
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YDD7.4(A) Mine power disaster acoustic and electrical monitoring instrument
Negotiable
China
East of Hengfeng Road, Zoucheng City, Jining City, Shandong Province (Inside the Mechanical and Electrical Industrial Park of Zhongxindian Town)
+86 13181477730
info@sdthkj.com
Product Introduction
Product Parameters
|
Project |
Unit |
Specifications |
Project |
Specifications |
|
Low frequency bandwidth |
Hz |
0.5~500 |
Channel Synchronization |
Four-channel synchronous monitoring |
|
High frequency bandwidth |
Hz |
600~1500 |
Monitoring signal type |
High frequency electromagnetic radiation, low frequency electromagnetic radiation, acoustic emission signal, microseismic |
|
Operating voltage |
V/DC |
7.4 |
Maximum monitoring range |
Electromagnetic radiation up to 50m, acoustic emission up to 200m |
|
Working current |
mA |
≤ 150 |
Monitoring direction |
Electromagnetic radiation using non-contact directional area monitoring, acoustic emission using non-directional area monitoring |
|
Maximum current |
mA |
≤ 350 |
Early warning mode |
Double index coupling overrun method and trend dynamic analysis method |
|
Communication mode |
- |
RS232 |
Data saving method |
Real-time automatic saving, no loss in power failure |
|
Protection level |
- |
IP54 |
Explosion-proof form |
Intrinsically safe |
|
A/D conversion accuracy |
bit |
24 |
Power supply |
Built-in rechargeable Ni-MH battery pack |
|
Storage capacity |
GB |
8 |
Alert Level |
Automatic three-level warning |
|
Continuous working time |
H |
≥ 10 |
Volume |
242mm × 164mm × 107mm |
|
Weight |
kg |
2.7 |
- |
- |
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