Welcome To Seismic Source Company

Seismic Source Company is a manufacturer of seismic instruments and data acquisition systems. Its products are used in a broad range of applications: Seismology, Structural Monitoring, Seismic Site Evaluation, Civil Engineering, Gas and Oil Exploration, Industrial Vibration Monitoring.

Products

sigma3plus
The Robust & Versatile Nodal Seismograph
 

Sigma 4+ Improvements:

New Streamlined Case Design

Less Weight (33% less)

Same excellent performance as Sigma 4

Optional Internal Co-Processing RABbit Board

 

Hardware Features:

Continuous Recording Standard - For Monitoring and Autonomous Operation

Internal or External GPS - For clock discipline and location information

Optional Mesh Radio Network - A low-power network for deployment, plus command and control, of nodes

Cable, Wi-Fi, or Cellular Ethernet - Provides "in the field" data offloading while recording

Hot-Swap External Storage Option - For collecting data while recording

Optional Internal Battery (99 watt/hour) - Provides about 48 hours of operation

Optional Internal Sensor (2 Hz geophones)

Sensor By-Pass Connector - For calibration of ADC or internal sensors, also connection of other external sensors

Trigger connector - Trigger via hammer switch or voltage level change

Rugged IP67 Case

 

Available Software:

Event Monitor (Local Monitoring)

Tremor Cloud (Remote Monitoring)

Optional Active Acquisition Package

Plus all necessary utilities

 

Acquire Active Data:

Vibroseis w/ Force 3

Dynamite w/ BoomBox 3

Impulsive w/ RTM 3

 

Acquire Passive Data:

Hydraulic Fracturing Monitoring

Surface Wave Acquisition

Long-term Permanent Monitoring

Earthquake Monitoring

sigma4 plus


             electronics             Gain Sigma 4-3+ Sigma 4-4+
Input Channels   3 4
Convertor Circuit   Sigma 3 DAQ4
PreAmp Gains   Low x1 (0 dB)
High x16 (24 dB)
Low x1 (0 dB)
Mid x4 (12 dB)
High x16 (24 dB)
Maximum Input Low 5 Volts P2P 7 Volts P2P
Mid - 1.662 Volts P2P
High 0.313 Volts P2P 0.4375 Volts P2P
Typical Dynamic Range
@500sps
Low 126 dB 125 dB
Mid - 124 dB
High 122 dB 120 dB
Typical Harmonic Distortion
@500sps
Low 0.0001% 0.0001%
Mid - 0.0001%
High 0.0001% 0.0001%
Typical Noise Floor
@500sps
Low 0.8 uVolts RMS 1.2 uVolts RMS
Mid - -
High 0.08 uVolts RMS 0.15 uVolts RMS
Sample Rates   125, 250, 500, 1000, 2000 & 4000 sps 125, 250, 500, 1000, 2000, 4000, 8000, 16000, 32,000 and 64,000 sps
Sample Intervals   8000, 4000, 2000, 1000, 500 & 250 μSecs 8000, 4000, 2000, 1000, 500, 250, 125, 62.5, 31.25,15.625 μSecs
Low Cut Filters   Digital Digital
High Cut Filters   85% Nyquist 85% Nyquist
Bandwidth   DC to 85% Nyquist DC to 85% Nyquist
Maximum Trace Length   Continuous Recording Continuous Recording
Input Impedance   20 kOhm 100 kOhm
 physical              External USB   Ruggized 19-pin Ruggized 19-pin
Mesh Radio Network   Optional Optional
100Base-Tx Ethernet   Rugged 10 pin MS style Rugged 10 pin MS style
External Trigger   Yes Yes
Internal Memory   8 Gbytes 8 Gbytes
Internal Battery   Optional Optional
Internal Coprocessor   No Optional
Internal Sensor   Optional Optional
Power Requirement   0.4 Watts/channel 0.4 Watts/channel
Voltage Requirement   9-28 Volts 9-28 Volts
Case Type   Aluminum ABS
Size   393 x 140 x 57 mm
15.5 x 5.5 x 2.25 in
353 x 140 x 66 mm
13.9 x 5.5 x 2.6 in
Weight (with options)   7.1 lbs (3.7 kg) 5.8 lbs (2.5 kg)
Temperature Range   -40 C to 80 C -40 C to 80 C

 
sigma4+    

Sigma 4+

   

Downloads:

  Sigma4+ Brochure Download Sigma4+ Brochure

Seismic Source Co

2391 E. Coleman Rd.
Ponca City, OK 74604
Phone: (580) 762-8233
Fax: (580) 762-1785
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