_ MENHIR STRONG MOTION SYSTEM
MENHIR STRONG MOTION SYSTEM MENHIR SM (Strong Motion) is based on a new high performance and versatile platform for industrial, geotechnical, vibrational and strong motion applications requiring easy-to-use but highly reliable instrumentation solutions. Besides the outstanding measurement performance, MENHIR provides a very intuitive means to analyze measurement data and generates tailored expert reports in compliance with relevant norms and standards. MENHIR SM comes in a very compact but robust form factor including a triaxial MEMS accelerometer. It can be configured in modern IoT-compliant network topologies using both wired and wireless communication channels. MENHIR SM comes along with an onboard HTTP Server with TLS/SSL internet security for set up and management of the system. Each gauge is accurately graduated and has holes for easy fastening to walls, piers and other structures. FEATURES Embedded 3-channel MEMS acceleration sensor Sensor Bus (RS-485) for additional external sensors 24-bit Delta Sigma Converters, multiple sample rates Versatile Connectivity (Ethernet and Wireless) for data communication and alarm notification Highly Secure SSH and SSL Internet Protoco Built-in GPS, NTP and IEEE- 1588 PTP Embedded Battery and Charger for autonomous operation Transient and EMI/RFI protection IP67 rugged enclosure MENHIR STRONG MOTION SYSTEM 2
TECHNICAL SPECIFICATIONS EMBEDDED ACCELEROMETER PERFORMANCE Topology Tri-axial, fully independent channels, nominally configured as E/X, N/Y, and Z Technology MEMS (life-time calibrated) Full-Scale Range ±2g (optionally ±4g) Bandwidth DC to 400 Hz (-3dB point) Dynamic Range >110 db Linearity 0.5 % of full scale Cross-Axis Sensitivity 1% Output Noise Differential ±2g: 6 μg/ Hz ±4g: 12 μg/ Hz DATA ACQUISITION Topology Fully independent channel 24-bit sampling Sampling rates 1000, 800, 500, 400, 200, 100, 50 sps (others on request) Baseline Dynamic Baseline Tracking and Correction Calibration Numerically controlled full-scale, baseline and transfer function calibration DATA PROCESSING Conditioning FIR, IIR filter pool, Time- and Frequency Analysis Precision Timing GPS/NTP/IEEE-1588 disciplined VCXO master clock ( < 0.1 ppm) Dynamic Range > 130 db @ 400 sps Trigger Selectable Band passed Threshold, STA/LTA, with Dynamic Adjustment Option Independently selected for each channel from 0.01% to 100% of full scale Trigger Voting Logic Selectable AND/OR combinations among channels, Common Trigger in Master/Slave Network Topologies Alarm User configurable multiple Alarm options (SMS/email notification) Pre-event Recording 1 100 s in 1 s steps Post-Event Recording 1 1000 s in 1 s steps Non-Volatile Memory File-System Dual internal SDHC slots: Data: Industrial grade SD-Card (standard 4 GByte), other capacities upon request System: Industrial grade SD-Card (standard 4 GByte) LINUX EXT4, Highly Efficient Lossless Data Compression MENHIR STRONG MOTION SYSTEM 3
CONNECTIVITY LAN Sensor bus Power Relay Output 10/100Base-TX (Copper), optionally 100Base-FX (Fiber). IEEE-1588 support Isolated RS-485 based External Bus for universal sensor connectivity Configurable Isolated Single-Pole Normally Open Cellular GSM/GPRS/EDGE/UMTS/HSPA/HSPA+/CDMA/LTE with embedded and additional external SIM-Card slot Wi-Fi 2.4 GHz ISM band supports 802.11 b/g/n, Station, Access Point, WiFi Direct Sub-1GHz Long range wireless communication up to 4 km line of sight (LoS) 863-870 MHz: SRD band (Europe), 902-928 MHz: ISM band (North America), 779-787 MHz: WPN band (China), 915-930 MHz: (Japan) GNSS GPS/GLONASS/BDS/Galileo POWER Supply Voltage 9 to 36 VDC unregulated (Integrated isolated DC/DC converter) Protection Reverse-voltage and over-/under voltage protected Isolation Supply power is isolated from signal ground Autonomy Embedded Li-Ion battery with integrated charger for autonomous operation uo to 48h (depending on wireless connectivity) Power Consumption 2W (Cellular/Wireless inactive) PHYSICAL AND ENVIRONMENTAL Housing Aluminum, surface resistant to corrosion Levelling Integrated bubble level, adjustable locking levelling screws Size Length: 200 mm Width: 140 mm Height: 108 mm Weight 4.5 kg Operating Temp. -40 C to 85 C Storage Temp. -40 C to 95 C Humidity 0 to 100% rh Protection IP67 MENHIR STRONG MOTION SYSTEM 4
CONFORMITY AND COMPLIANCE Electrical Safety EMI/RFI Conformity In compliance with DIN 61010-1 In compliance with DIN EN 61326-1/-2.2/-2.3 REMOTE ACCESS Interface Onboard HTTP Server with TLS/SSL internet security and WPA2 Wi-Fi security Firewall friendly, highly secure SSH, no need for VPN Command and Control Password secured Web-UI for configuration and parameter settings access Data Retrieval Fully supported by Web Monitoring System Cloud application for intuitive data management, analysis, visualization and automatic report generation State-of-Health Information Data Format/Container ASCII, FLAC/Matroska, MiniSEED MENHIR STRONG MOTION SYSTEM 5
All the information in this document is the property of Sisgeo S.r.l. and should not be used without permission from Sisgeo S.r.l. We reserve the right to change our product without prior notice. SISGEO S.R.L. Via F. Serpero 4/F1 20060 Masate (MI) Italy Phone +39 02 95764130 Fax +39 02 95762011 info@sisgeo.com ADDITIONAL SUPPORT SISGEO offers on-line assistance service to the Customers in order to maximize the performance of the system and training on the correct use of the instrument/readout. For more information contact mail: assistance@sisgeo.com MENHIR STRONG MOTION SYSTEM 6