Download Shallow Borehole EpiSensor

DOCUMENT 301934, REVISION B
Appendix A
Table 8: SBEPI Specifications
Type
Triaxial force balance accelerometer
Dynamic range
155 dB + (SBEPI noise model
available from Kinemetrics)
Bandwidth
DC to 200 Hz
Calibration coil
Standard
Full-scale range
Factory-selectable at ± 0.25g, ± 0.5g, ± 1g,
± 2g or ± 4g
Full-scale output
User-selectable at: ± 2.5V single-ended; ± 10V
single-ended; ± 5V, ± 20V differential
Linearity
< 1000µg /g2
Hysteresis
< 0.1% of full scale
Cross-axis sensitivity
< 1% (including misalignment)
Zero point thermal drift
< 2% of full-scale, -200 to +700 C
Zero point drift
< 500µg / 0C
ESD, RF, EMI protection
Double-stage transient protection with gas arrestor
elements
Quiescent power consumption
12 mA from ± 12V (standard amp); 35 mA from ±
12V (low noise amp)
Operating temperature
-200 to +700 C (-400 to +850 C with reduced
performance)
Housing
Stainless steel
Cabling
Output Cable Molded into sensor body standard
length of 40m optional 110m available
Dimensions
47.6 cm (18.75 inches) long x 7.62 cm (3 inches) in
diameter
Pressure rating
140 PSI
Weight
2.3 kg (5 pounds)
SHALLOW BOREHOLE EPI USER GUIDE
37