Node specifications

Mechanical
     Weight: Dry 65 lb (30 Kg)/Wet 40 lb (18 Kg)
     Diameter: 17 in (43.2 cm)
     Depth rating: 700 meter
     Height: 6 in (15.2 cm)

Analog
      Number of channels: 4
     1 hydrophone, 3 orthogonal geophones
     ADC resolution: 24 bits
     Sample intervals: 2 & 4 millisecond
     Preamp gains: 0 - 36dB in 6dB steps
     Bandpass: DC to 85.8% Nyquist
     Low cut filter: Out, 1-60 Hz @ 6dB/octave
     Distortion (THD)* <0.0006%
     Gain acc ch to ch: 0.50%
     EIN RMS (preamps shorted)
          0 dB 1.8 microvolt
          12 dB 0.6 microvolt
          24 dB 0.4 microvolt
          36 dB 0.4 microvolt
      Maximum input signal RMS
          0 dB 1,767.5 millivolts
          12 dB 442 millivolts
          24 dB 110 millivolts
           36 dB 27.5 millivolts
     Common mode (CMRR)* >90dB
     (>40dB hydrophone)
     Crossfeed: >100 dB
     (>80 dB hydrophone)

Electrical
     Timing accuracy
     Uncorrected: +/- 5 ms @ 15 days
     Corrected: +/- 1 ms or ½ sample interval

     Power
     Lithium-ion batteries
     Longevity: 15 days
     Recharge time: 8 hours - worst case

     Tilt indication: +/- 1.5º
     Azimuth indication: +/- 5º
     (at latitudes +/- 50º of equator)

     Flash memory
     Capacity: 8 Gbyte

     Data interface
     Diagnostic: RS232
     Data download: proprietary HS serial

     Status LED indicating
     Power ON, acquisition, error

Data recording station specifications

Data harvester

Mechanical
     Weight: ~ 98 lb (44.5 Kg)
     Capacity: 6 nodes
     Height & width: 13 in (33 cm)
     Length: 48 in (121.9 cm)

A single group of up to eight data collection
and charging stations (DCCS) with one node
box can process up to 48 nodes. With an 8-hour
turnaround, this group can process up to 144 nodes
in a 24-hour period. Up to 20 such groups may be
networked together simultaneously.

Data sorter

Mechanical
     Equipment rack
     Height: 54.5 inch (138 cm)
     Width: 24 inch (61 cm)
     Depth: 29 inch (74 cm)

Multiple workstations
     Flat panel display, keyboard, mouse

Electrical
     Data storage
          RAID (Level 6)
          Capacity: multiples of 10.5 TB

     Output media
          MDR, USB , eSATA disks and 3592 tapes

     Output format
          Receiver gather

Environmental
     Power: 85 to 264 VAC, 47 to 63Hz
     Operating temperature: +32 to 122ºF
     (0 to 50ºC)**
     Humidity: 5 to 95% non-condensing**

 

*2-millisecond sample rate @ 12dB K-gain
**Temperature and humidity specifications may
vary due to media selection

FairfieldNodal reserves the right to change
specifications without notice.
Aug 2010

Download Z700 spec sheet as PDF file