File Name
MR3003DMS datasheet
Resource Type
Brochure| Language | Version | Download |
|---|---|---|
| English |
|
MR3003DMS
The MR3003DMS is a dedicated strong-motion monitoring system for dams. Up to 32 units can be connected together to have a complete and reliable seismic monitoring system.
Product supplied by Syscom Instruments.
Overview
The MR3003DMS seismic monitoring system is the most compact, integrated and reliable system for dams, ensuring the highest level of safety and sustainability. Automatic earthquake detection and structural monitoring will ensure the dam full integrity over its lifetime.
The MR3003DMS is extremely versatile and easy to install, thanks to its state of the art Ethernet master-slave connectivity and the command & control access through embedded web server.
3 relays output (alarm 1, alarm 2, device error) can be directly connected to the control room for a centralized overview and an automatic logic response in case of any seismic event.
Data acquisition
| ITEM | SPECIFICATION |
| General Principle | 4th order delta-sigma ADC per channel |
| Resolution | 24 bits |
| Sampling-rate | 250, 500, 1’000, 2’000, 4’000 sps |
| Number of channels | 3 |
| Channel to channel skew | None, simultaneous sampling on all channels |
| Dynamic range | Typ. 130dB@250 sps, 124dB@1000 sps |
| Data Filter | Anti-aliasing filters |
| Trigger Filter | Digital IIR filter: 0.5 – 15 Hz band-pass (Strong Motion Applications) |
Trigger and de-trigger
| ITEM | SPECIFICATION |
| Principle | Level trigger or STA/LTA or automatic adjustment of trigger level |
| Trigger voting logic | Predefined AND or OR combinations, individual channel votes |
| Trigger level | 0.1 mg to 4 g |
| STA / LTA | STA: 0.1 to 25s, LTA: 1 to 250s, ratio 0.1:25 |
| Smart Trigger / De-Trigger | Automatic adjustment of trigger level |
Microprocessor
| ITEM | SPECIFICATION |
| Recording Principle | Event recording (time history), continuous-time recording, or manually triggered |
| Header | Contains status information at time of trigger and event summary |
| Pre-event recording | 1-99 seconds (@250Hz), others depending on sampling rate |
| Post-event recording | 1-100 seconds |
| Max. recording time | Unlimited |
| Memory Removable | SD flash card (4GB) |
| Timing System clock | 1ppm, could be disciplined by GPS or NTP |
| Data / User Interface Web interface | Easy to use command & control through embedded web server |
| Intelligent Alerting | System initiates communications and sends e-mail when an event is recorded |
| FTP Built-in | Built-in client protocol supporting FTP, SFTP, FTPS able to push to a server |
| Alarm triggers Principle |
Two alarm levels independently settable as threshold levels or user-defined |
| Alarm level range | 0.1 % to 100% full scale |
| User-defined alarm | Thresholds and frequencies individually settable for each axis |
| System status | 3 LEDs Run, Recording, Warning/Error. Internal LCD with status info and important settings |
Network capabilities
| ITEM | SPECIFICATION |
| Common trigger and common alarm | Configurable with AND/OR logic, for every device within the same network |
| Sync. in LAN network | Typically 1 ms with NTP protocol |
| Max. number of MR3003DMS | 32, in Master/slave configuration |
| Remote control | VPN, DDNS |
Power Supply
| ITEM | SPECIFICATION |
| Power supply | 100 – 240 V AC, 50 – 60 Hz, OVP protected, type I and II. Optional DC power 10-36 V DC |
| Internal battery | 12 V, 12 Ah |
| Consumption | 4 W (with charged battery), 25 W (AC max. and battery in charge) |
| Battery autonomy | Typ. 40 hours |
I/O (glands and connectors)
| ITEM | SPECIFICATION |
| Relays (3) | M16 cable gland 7-11mm / Terminals |
| Power | M16 cable gland 4-11mm / Terminals |
| Kit LAN | On request, 3 m Ethernet cable |
| Kit GPS | On request, connector and GPS antenna with 5 m cable for time synchronization |
| FO | M20 cable gland 6-13 mm / ST connectors |
Fiber Optics
| ITEM | SPECIFICATION |
| FO type | Multimode OM2 fiber with wavelength 1300 nm, 50/125 μm, Rx/Tx |
Relays
| ITEM | SPECIFICATION |
| Configuration | 3 output configurable relays, No/Nc |
| Current | 2 A, 30 V DC |
Acceleration sensor
| ITEM | SPECIFICATION |
| Principle | Micro-machined capacity MEMS accelerometer |
| Hysteresis | None |
| Noise (10 to 1000 Hz) | Typ. 7 μg/√ Hz |
| Frequency range | DC to 600 Hz |
| Dynamic range | Typ. 100 dB @ 200 sps |
| Measuring range | ±4 g |
| Sensitivity | 1.25 V/g differential |
| Scale factor error | < 1 % |
| Orientation | Horizontal or vertical mounting, to be specified when ordering |
| Self test | Test-pulse, configurable |
Housing
| ITEM | SPECIFICATION |
| Dimensions | 330 x 230 x 110 mm |
| Weight | 10 Kg |
| Protection degree | IP66 |
Environmental
| ITEM | SPECIFICATION |
| Shock | 30 g/11 ms half-sine |
| Heat | -20 °C to +50°C |
| Humidity | up to 100% RH |
Regulations
| ITEM | SPECIFICATION |
| EMC | IEC 61326-1 |
| Electrical safety | IEC 61010 |
| Conformity | CE |
| Origin | Swiss Made |
Speak with an Expert
I’m very happy with the quality of the instrumentation and technical support from RST, as always. They worked with us from the initial stages of the project to ensure that we were fully prepared and equipped to use the RSTAR network for the first time. They delivered everything within the tight project time frame to ensure that there were no delays on site, and the submersible tilt meters looked like new even after over twelve months of being submerged in Thames water!
-Richard Lipscombe, BEng (Hons), Director & Principle Consultant - RL Geotechnical Ltd