Table of Contents
Summary of Contents for GFZ DiGOS Omnirecs DATA-CUBE3 Series
- Page 1 DiGOS Potsdam GmbH http://digos.eu • info@digos.eu Seismic Data Recorder DATA-CUBE³ User Manual DiGOS Potsdam GmbH Telegrafenberg 14473 Potsdam Germany Doc.: DATA-CUBE-User-Manual Issue: Date: 15-May-2020 © DiGOS Potsdam GmbH Page 1 / 24...
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Page 2: Table Of Contents
DATA-CUBE³ User Manual Contents Introduction .............................. 3 DATA-CUBE³ ............................4 2.1. DATA-CUBE³ Type 1 (int) ........................4 2.2. DATA-CUBE³ Type 2 (ext) ........................5 2.3. Custom-built Types ..........................5 Accessories ............................. 6 3.1. Software and Configuration ........................6 3.2. Transport Box ............................6 3.3. -
Page 3: Introduction
User Manual 1. Introduction The DATA-CUBE³ is a 3-channel, 24-bit seismic data recorder. It was initially developed at GFZ Potsdam until 2011, later enhanced and introduced to the international market by Omnirecs, now produced and distributed by DiGOS. The DATA-CUBE³ is a great candidate for different seismologic applications by its unique combi- nation of features. -
Page 4: Data-Cube³
DATA-CUBE³ User Manual 2. DATA-CUBE³ The DATA-CUBE³ is available as Type 1 (int) and Type 2 (ext). Choosing the right DATA-CUBE³ type depends on the intended application and usage scenarios. Both types are electronically identical except for the internal vs. external GPS antenna and internal/external power supply. 2.1. -
Page 5: Data-Cube³ Type 2 (Ext)
DATA-CUBE³ User Manual 2.2. DATA-CUBE³ Type 2 (ext) Features: • External GPS antenna • External power supply only Typical applications: • Long-term, passive seismic measurement campaigns and experiments for unattended operation of up to ~280 days (continuous recording 3 channels @ 100sps) •... -
Page 6: Accessories
DATA-CUBE³ User Manual 3. Accessories 3.1. Software and Configuration The following software tools are available and are delivered with the DATA-CUBE³ at no additional fees: • CubeMonitor: Used to check the proper function of the DATA-CUBE³ and noise at the installation/de- ployment site (monitor cable required). -
Page 7: Breakout Box (Bob)
DATA-CUBE³ User Manual 3.3. Breakout Box (BOB) A breakout box (BOB) is necessary if the DATA-CUBE³ is used together with an active sensor. The BOB powers the sensor and adjusts the voltage level of the sensor output to match the voltage input range of the DATA- CUBE³. -
Page 8: Cables
DATA-CUBE³ User Manual 3.4. Cables The following cables are available: Power cable This cable is used to feed the DATA-CUBE³ with external power (5-24V DC). The input is protected against reverse poling. Connector and pin-out are different between DATA-CUBE³ Type 1 and 2. The D-cell batteries must be removed when powering DATA-CUBE³... -
Page 9: Geophones
DATA-CUBE³ User Manual 3.5. Geophones Different types of geophones can be ordered from DiGOS: • Available natural frequencies: 4.5Hz, 8Hz, 10Hz or 14Hz • 1 component (vertical) or 3 components (1 vertical & 2 horizontal) • 3m cable (or custom length) 3 component geophone The geophones are connected to the DATA-CUBE without an additional breakout box. -
Page 10: Pin-Out
DATA-CUBE³ User Manual 4. Pin-out Please note: The following pin-out tables are describing the data sockets of the DATA-CUBE³! 10-way socket (female): signal input from sensor (type 1 and 2) Signal Analogue Input+ Input– Input+ Input– Input+ Input– Color white brown green yellow... -
Page 11: Power Budget (Examples)
DATA-CUBE³ User Manual 5. Power Budget (examples) The power budget has been estimated based on power consumption measurements of DATA-CUBE³ type 1 at laboratory conditions and on using two “Duracell Procell MN1300” batteries with a capacity of 39.6Wh. DATA-CUBE³ type 1, measuring all 3 channels @ 100sps GPS Cycle GPS on GPS on... -
Page 12: Recording Times & Data Storage
DATA-CUBE³ User Manual 6. Recording Times & Data Storage The internal data storage capacity of the DATA-CUBE³ is up to 32GB. A 16GB version is available mostly for historic reasons. The following table provides an estimation of recorded raw data. It assumes a typical noise level of the measured data: 3 channels @ 100 sps 1 channel @ 800 sps... -
Page 13: Counts And Voltage
DATA-CUBE³ User Manual 7. Counts and Voltage The signal input range of the DATA-CUBE³ is ± 2.048V = 4.096Vpp. For 24 Bit ADC this equals 0.000 000 244 140 625V per count at gain 1 (4.096V / 2e24). The following table shows the volts per count for different gains: Gain Volts per count 244.140625 nV... -
Page 14: Adc Performance
DATA-CUBE³ User Manual 8. ADC Performance The ADC performance is given for 100sps operation mode. Gain 1 Gain 16 Gain 64 High Resolution SNR 125.6 dB 122.2 dB 113.5 dB Effective Bits 22.4 Bit 21.8 Bit 20.3 Bit Low Resolution SNR 122.6 dB 120.7 dB 113.0 dB... -
Page 15: Operation
DATA-CUBE³ User Manual 9. Operation 9.1. Configuration This is an example of a default configuration file. It is to be adapted for the experiment and uploaded to the DATA-CUBE³ via USB before deployment in the field. Please refer to the configuration file manual for a detailed description of the configuration file. - Page 16 DATA-CUBE³ User Manual * (GPS interval only in cycled mode) F_TIME=30 ********************************************************************** ***** Parameters relevant for GPS cycled mode only ******* ********************************************************************** ** GPS OFF after 0 = 'GPS_TI' // 1 = 60 GPS fixes max.'GPS_TI' GPS_OF=0 ** GPS ON Time: 3 to 60 minutes GPS_TI=5 Notes High resolution / C_MODE=1...
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Page 17: Getting Started In The Lab
DATA-CUBE³ User Manual 9.2. Getting Started in the Lab • Connect the DATA-CUBE³ via the light grey USB cable with a computer. The DATA-CUBE³ will appear as a USB storage device and the configuration file can be accessed. If desired edit the configuration file and change the values like sampling rate, gain, number of channels, interval of active GPS accord- ing to your requirements. - Page 18 DATA-CUBE³ User Manual • Wait typically 3-5 minutes for reception of the GPS signal if the coordinated in the con- figuration file match your location by a radius of about 300km. It might take much longer if for example the coordinates do not match the values in the configuration file. Adopting the correct GPS coordinates in the configuration file will speed up the GPS synchronization drastically.
- Page 19 DATA-CUBE³ User Manual Connect the devices and wait until red & blue LEDs are blinking synchronously! Do not place the magnetic GPS antenna (Type 2 only) on the DATA-CUBE! The components are: channel 0 – vertical (Z) channel 1 – north (N) channel 2 –...
- Page 20 DATA-CUBE³ User Manual Example for tunnel installation: The DATA-CUBE³ can be used for measurements without permanent GPS reception and still get precise timing. The general procedure is as follows: 1. The DATA-CUBE³ has to be powered outside the tunnel until it received a GPS fix (only then the DATA-CUBE³...
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Page 21: Leds
DATA-CUBE³ User Manual 9.4. LEDs The LEDs indicate the status of the DATA-CUBE³. Status Interpretation What to do? →Use new batteries Blinking fast Blinking fast Error: Batteries are empty →Data download or don’t use this DATA-CUBE³ Blinking fast Error: SD card full or dam- aged →Check conditions of GPS reception Blinking slow... -
Page 22: Data Download & Conversion
DATA-CUBE³ User Manual 9.7. Data Download & Conversion The data download from a DATA-CUBE³ to a computer very easy. Connect the DATA-CUBE³ using the (grey) USB cable with the USB interface of the computer. It will appear as a new external USB drive. Subsequently, the data from DATA-CUBE³... -
Page 23: General Usage Information
DATA-CUBE³ User Manual General Usage Information 10.1. Safety Instructions Improper use voids the warranty and can damage or even burn the electronics of the DATA-CUBE³! Besides general recommendations of electronics usage, the user must pay attention to the following, additional usage information: All pins are not protected against overvoltage! Do not connect RS-232 of the DATA-CUBE³... -
Page 24: Technical Specifications
DATA-CUBE³ User Manual Technical Specifications A/D converter • Type: Delta-Sigma 24 Bit • ADC resolution: 24 Bit per channel • ADC channels: 3 • ADC dynamic range: 125db @ 100sps (128db @ 50sps) • Effective resolution: 22.4 bit @ 100sps @ gain 1 (typical) •...
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