DATAKOM DSD-060 is a high-tech unit which detects seismic acceleration. On the occurrence of an earthquake it closes relay contacts to shutdown any critical devices such as generators, elevators, valves and industrial equipment. Thus it is possible to minimize the probable damage that occurs after an earthquake. DSD-060 is a very cost effective device for shutdown applications. The device is based on highly reliable dual axis silicon micromachined acceleration sensors. It is lightweight, small, maintenance free and capable of performing self-test. The unit has two independent relay outputs. The seismic properties of the standard output are conformal to ANSI Z.21-70(1981) and ASCE 25-97 standards. The auxiliary relay output which is more sensitive is intended for warning purposes. The unit has a user adjustable sensitivity potentiometer. The adjustment range is between low and high limits allowed by the standards. FEATURES: Conformal to ANSI Z.21-70 (1981) Conformal to ASCE 25-97 Microprocessor controlled Semiconductor acceleration sensors Dual axis Non-seismic accelerations filtered Separate outputs for standard and high sensitivity Maintenance free Capable of performing self-test Operates on 10 to 30 volts DC Direct interface to gensets, elevators and alarm systems Overload protected relay outputs Resin molded design TECHNICAL SPECIFICATIONS: Sensor: Dual axis micro-machined polysilicon accelerometers Acceleration Threshold: User adjustable from 0.1g to 0.25g. The high sensitive secondary output is adjustable from 0.03g to 0.1g Detection Delay: 0.5sec maximum Supply Voltage: 10 to 30V-DC Power Consumption: 30mA. Additional 40mA for each energized relay Frequency response: 0.5 Hz to 10 Hz. NonEarthquake signals are filtered Switching: 2 low power relays for high and low sensitive applications Diagnostics: Self-diagnostics at power-on and reset Operating temperature range: -20 to 70°C (-4 to +158°F) Weight: 500 grams (approx.) Dimensions: 115x157x40 mm Conformity: ANSI Z21.70(1981), ASCE 25-97 Conformity (EU directives) -2006/95/EC (low voltage) -2004/108/EC (electro-magnetic compatibility) Norms of reference: EN 61010 (safety requirements) EN 61326 (EMC requirements) WE DO NOT SHIP THIS PRODUCT TO USA AND CANADA