Seismic Sensor Control Switch

Each year more than 500 earthquakes claim lives and damage buildings. Organizations increasingly worry about security and safety relating to natural disasters, accidental explosions or those caused by terrorism. To maximize safety in the event of a disaster, Novacomm has developed a low cost, easy-to-install earthquake/ explosion sensing device, the Seismic Sensor Control Switch.

This patented single device releases access control systems and initiates emergency exiting procedures to immediately release persons trapped behind locked doors. It also assists with evacuation by providing specific safe paths of travel.

In an emergency seismic event where cutting off electrical power to machinery and production lines is required, the Seismic sensor Control Switch is also the solution.

In situations where machines and production lines need to be shut down in the case of an earthquake or explosion event, the Seismic Sensor Control Switch can cut off power and reduce additional collateral damage and injuries.

This tri-axial sensor system detects and identifies earthquake seismic patterns and/or explosions that affect enclosed spaces. The system provides an immediate signal to perform any number of life safety tasks or to initiate specific disaster mitigation programs and equipment.

Using state of the art technology, equipment, and software, this device has been developed to meet and integrate into existing National Fire Protection Association (NFPA) and ICC codes. This previously hard to find technology offers two additional layers of alarm protection to both the private and public sectors.

The system consists of a UL approved type 2 power supply, an umbilical, and a NEMA 4 liquid tight steel enclosure containing the seismic sensor head. The device is designed to operate as a simple autonomous alarm. All alarm signals are output as either normally open or a normally closed circuits.

Functions

• High discrimination reduces false alarm risk

• Low cost system

• Rapid installation

• Shutdown machinery and heavy equipment

• Deactivate access and entrance control systems

• Deactivate delayed egress doors

• Initiate specific pre-planned emergency evacuation orders

• Communicate specific alarms to outside resources, emergency response

facilities and agencies through diales, WAN and radio

• Initiate dust control and positive ventilation systems

• Report an accurate range of seismic and explosive energy absorbed by the

structure

• Customized multi-unit systems available

• Modified Mercalli Scale oriented response

Specifications

• Type 2 UL Listed power supply

• Onboard battery charging for UPS service

• NEMA 4 rated liquid tight floor enclosure Meets NEMA 250 standards

• Nominal trip level 0 .065 G +/- 0.005 G*

*Other trip levels are factory programmed and are not field adjustable

• Power: 120 Volt AC with 12 volt DC battery backup

• Supply current for seismic sensor head: 120mA

• Supply current for blast sensors

• Frequency response: 1Hz to 10Hz

• Pressure response 3kPa to 30kPa

(1.5 psi over ambient)

• Self diagnostics on power on, reset and test

• Temperature range -20 C to +40 C

• Visual and audible indicators at the power supply