Soil Compression Gages (SCG) - measure horizontal or vertical displacements in soils or subgrade
material. SCGs are ruggedized to withstand the harsh environment in soils and construction fill
material during placement and compaction. They are moisture proof, with internal O-rings to
prevent ingress, and can function to measure compaction or expansion of soils in various
subsurface layers. Gages utilize displacement transducers typically over 1 to 6 inch travel ranges
and can be used to measure dynamic response. Gages are easily customized to length and
measuring range requirements and standard wiring configurations adapt to most data acquisition
systems.
Specifications
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Gage Length : Customer specified (up to 24 Inches)
-
Measurement Range : 2.5 to 150 mm (⅝" to 6") Full Scale
- Linearity Error : ±0.15% of Full Scale Output (FSO) typical, ±0.25% max
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Resolution : 0.025% of FS
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Excitation : 0 to 10V output with 12 to 30V input, 35 mA max;
4 to 20 mA (3-wire) output with 18 to 30V input, 60 mA max 75°C
(167°F max)
- Update Rate : 300 Hz nominal
- Output : Proportional to excitation over measurement range
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Lead Wire : 35 ft (standard) of 18-22 AWG twisted-pair, 3- or 4-wire, with shielding;
custom lengths available
- Temperature Range : -20 to 85°C (-4 to 185°F)
- Temperature Coefficient : 0.015% of FS/°C
- Vibration : 5 to 20 Hz, 0.5" p-p; 20 to 2000 Hz, 4.2 g p-p
- Shock : 1000 g, 11 ms