Description
The Model 4200 Displacement Detector System is an Early Warning System. The displacement detector consists of up to 6 displacement sensor switches. The detector control unit is attached to a post. The sensors’ switch ends are mounted on stable ground and the other end is attached and turns on an audible/visual alarm to the moving section. The system switches when a pre-set displacement is exceeded or the cable is broken. The Model 4200 controller allows up to six sensors to be monitored continually.
Application
Measurement of displacements in:
- Open cut mining
- Deep excavations
- Land fill subsidence
- Embankment
- Cliff stability
- Structure stability
Features
- Fail safe operation
- Waterproof enclosure
- Sensor condition indicator
- System integrity test facility
- Battery condition indicator
- Inexpensive sensors
- Controller can be re-located
- Small volume of equipment
Specifications of the Model 4200 Displacement Detector System
- Displacement limit range: 1 – 90 mm
- The alarm controller suits up to 6 sensors
- Steel posts as the surface sensor anchors
- Audible and visual alarm signal comprises a 12V double strike xenon beacon and a 120dB pulsed tone audible siren
- Dimension (head frame): 380 x 600 x 210 mm
- Dimension (sensor): 25 mm x 510 mm long
- Dimension (audible/visual alarm): 390 x 220 x 540 mm
- Weight (head frame): 13.7 kg
- Weight (sensor) 0.44 kg
- Weight (audible/visual alarm): 13 kg