SRi32Lbit Digitizer with The C100 Sensor


the sri32l

 

LandTech introduces its new ultra high resolution digitizer/recorder unit which has been designed with the cooperation of GEObit. The technology is based on the SRi32 digitizer/recorder, initially designed for micro-cracking monitoring from the surface. Since Landtech is focusing in both PST and Fracturing Monitoring applications, the instrument has been re-designed, in order to comply with all the requirements and be able to operate with multiple ways. Special characteristics such as ultra high resolution, miniature size, ultra low power consumption (the unit can operate for one week with a small 12V/9Ah battery) combine to make the instrument the most competitive in today’s market. Our latest innovation in technology keeps LandTech several steps ahead today’s competition.

Technical Specifications

 Digitiser

No. of analog Channels

3/6

A/D Converter

Fourth Generation, Delta-Sigma, 32bits resolution

THD

-125dB

Modulator

Fourth generation, 4th order Delta-Sigma Modulator

Filter

Programmable SINC, FIR, IIR Filtering, auto-calibration function

Filter Response

Selectable Minimum or Linear Phase Filter

Input Resistance

500 kOhms differential

Sampling Rate

50-1,000 samples per second, in steps

Power

9-18 Vdc, 0.7W, 0.8 with integrated sensor electronics

Autonomy

One week powered from a 12V/9Ah battery, 36 days powered from a 12V/55Ah car battery

RMS Noise

138dB @ 250 sps, 129dB @ 1,000 sps

Data Recording

Media

Removable microSD Flash card up to 64 GB

Data File Type

CORE32 format, embedded FAT32 file system

Information File

System log file

Recording Mode

Continuous, in ten minutes data files

Trigger

Programmable STA/LTA

Time Base

Type

12 channels GPS receiver/DPLL

Accuracy

Time : +/- 1 usec to UTC time pulse, +/-5 m to position

Timing Sources

Ultra low drift DPLL unit using TCVOCXO, RTC

DPLL drift

Less than 17usec between one hour GPS cycle

Communication

Telemetry

Serial port or Ethernet port (optional)

Connectivity

Seiscomp/SEEDlink, RS232 port

LCD

Miniature LCD with alternative information messages

LED

Six high brightness LEDs monitoring system SOH

Integrated Force-Balance Sensor Electronics

Bandwith

0.2Hz  - 98Hz

Technology

Force - Balance Technology

Sensitivity

2,000V/m/sec using force-balance electronics

Physical (Digitiser/Recorder with Integrated Sensor Electronics)

Size

168mm x 106 mm x 68 mm

Weight

1.2 kg

Physical (Seismic Sensor)

Type

Borehole Type

Dmensions

50 mm dia x 180 mm length

Cable Length

20 m, up to 100 m

Mounting

Smart elastic clamp for quick installation and un-installation

Weight

1.2 kg

Humidity

Up to 20 bar external water pressure

Tilt

+/- 10 degrees

Environment

Temp. Range

-20 to +70 0C

Humidity

100%, IP67 enclosure