Certimus Introduction
The Certimus seismometer is a broadband seismometer with a 90° tilt tolerance, suitable for local, regional and global seismic monitoring. SEIS-UK maintains 60 Certimus, as well as a variety of ancillary equipment to power, deploy and perform data recovery with.
Much of the information presented in this page is from Guralp.
Specifications
| Certimus | |
|---|---|
| Total number | 60 |
| Digitiser | 32 bit delta-sigma ADC |
| Masses | Three components, no mass locking |
| Tilt range | ±90° |
| Data output/memory | 128GB internal and external microSD cards |
| Data download | Via hot-swappable microSD card or ethernet cable |
| System control | Via a Discovery software and GuVu app |
| Power consumption | ~1.6W normal mode ~1.3W LAN power save ~1.3W GPS power save ~1W GPS and LAN power save |
| Power supply | 12V (10-36V DC range) or Power over Ethernet |
| Dimensions | Diameter 175mm, height 95mm |
| Weight | 3.5kg |
| Frequency response | 120secs to 100Hz |
| Sampling rate | 1-1000sps |
| Operating temperature | -20°C to 60°C |
| GPS | External GPS antenna |
Shipping information
The Certimus are shipped in transit cases that can hold up to 5 Certimus and associated cables. These shipping cases also feature power and communication hubs, which allows one battery/power supply to power 5 instruments and one computer to communicate with all 5 Certimus for easy pre-deployment configuration.
We can also provide deployment backpacks, for transporting Certimus in the field. The Certimus should NOT be shipped in these backpacks
SEIS-UK is able to offer advice on the appropriate type and number of solar panels and batteries necessary for your period and latitude of deployment. 12V batteries (usually car batteries) should be provided by the user.
| Transit case dimensions | 970mm x 600mm x 330mm |
|---|---|
| Transit case volume | 0.192m3 |
| Transit case weight (with 5 Certimus and cables) | ~37kg |
