Brake Remote Control
The brake release unit is used when a remote controlled machine is stuck in the stope with the brakes applied and no way to release them. The Hard-Line Remote Brake Release Unit was developed to allow an easy solution for this situation.
The operator types in a 4 digit code and then holds the release button on a compact transmitter. Each machine is equipped with a separate hydraulic pumping system and a hydraulic circuit to release the machine’s brakes.
Once the brake pressure is met, the hydraulic pump is stopped. If the hydraulic pressure drops, the pump automatically re-starts. When the operator releases the button, the brakes will reapply.
• The perfect solution to a common problem
• Can be retrofitted to any machine
• Built-in fail-safe coding, ensuring operator safety and control
• Testing and diagnostics are built into the system
• Does not rely on physical, mechanical components which stick over time
Wireless Medium: Direct Sequence Spread Spectrum Radio
Opening Frequency Range: 902-928 MHz
Approvals: USA: FCC 15.247, Canada: 2311101331A3 17
Radio Data Rate: Up to 860 Kbps (FCC, CANADA)
Maximum Radio Data Rate: 1.35 Mbps (not FCC approved)
Frequency Resolution: 300 kHz
Frequency Stability: +/- 5kHz
Chipping Rate: Selectable up to 9.457 Mcps
Spread Ratio (min/max): 5:1 / 50:1
Processing Gain (min/max): 11 dB / 17 dB
Output Power: +26.5 dBm / 450 mW
Sensitivity (@ 10-5 bit error rate): -95 dBm@215 Kbps, -87 dBm@860 Kbps
Adjacent Channel Rejection: 23 dBc
Receive/Transmit Turnaround Time: 1 ms