STS 1 Very Broadband Seismometer Electronics STS1 E300 User s Manual Version 1 20 hne gt nrozei Metrozet LLC 21143 Hawthorne Blvd 456 Torrance CA 90503 866 823 0339 www metrozet com Copyright 2008 STS1 E300 User s Manual Rev 1 20 1 of 31 Table of Contents No User Serviced Parts Electrical Safety Notice sccssccsscccsccesscccscees p 3 Introduction and Instrument Description cccccccccsccccccscccccsscccesecs p 4 STS1 E30
1 Summary STS18 121 switch input single channel isolation safety barrier receives the switch input comes from danger zone the safety barrier isolated output provides relay contact output in safety zone 2 Technical Specifications Channel Single channel Area of switch Zone0 IIC T4 6 danger zone Zone 1 Group A Danger zone Danger zone signal input Apply to switch dry contact input Supply voltage 7 0 9 0V Open Circuit Short current 8mA Safety zone relay output