Seismic Control System
This tri-axial sensor system detects and identifies earthquake seismic patterns. The system provides an immediate signal to perform any number of lifesaving tasks or to initiate specific disaster mitigation programs and equipment.
Key Features:
- Rigorous quality control with 45 individual tests per unit
- Accuracy to +/- 0.005 G from 1 to 10HZ
- Industry leading discrimination of earthquake signatures
- Low cost system
- Rapid installation
- Interfaces with fire alarm systems
System Functions:
- Shutdown machinery and heavy equipment
- Deactivate access control systems or delayed egress doors
- Initiate specific pre-planned emergency evacuation orders
- Communicate specific alarms to outside resources and emergency responders
- Initiate dust control and positive ventilation systems
- Report an accurate range of seismic energy absorbed by the structure
Specifications:
- Power: 12 or 24 VDC / Type 2 UL Listed power supply
- Onboard battery charging for power back up
- NEMA 4 rated liquid tight floor enclosure Meets NEMA 250 standards
- Nominal trip level 0 .065 G +/- 0.005 G* (Modified Mercalli Scale oriented response) *Other trip levels are factory programmed and are not field adjustable
- Supply current for seismic sensor head: 120mA
- Frequency response: 1Hz to 10Hz
- Self diagnostics on power on, reset and test
- Temperature range -20 C to +40 C
- Visual and audible indicators
Certifications and Expert Opinions:
- Complies with UL 294 Access Control System Units - Listing #E112730 - Tested By MET Laboratories, Inc. (MET Labs), NRTL located in Baltimore, MD
- Seismic Sensor installation is mandated by the Los Angeles County Fire Department for Access Control Vestibules
- Witness Letter Report from Underwriters Laboratories for a Test performed to the Seismic Sensor at Quanta Laboratories in Santa Clara, CA
- Quanta Laboratory Certificate of Conformance
- Expert opinion from Mr. Bruce A. Bolt, former Professor of Seismology Emeritus from the University of California Berkeley

