G–2
MEASUREMENT SPECIFICATIONS
U.S
. CUSTOMARY UNITS
Direct Transmission, 6 inches 15 sec. 1 min. 4 min.
Precision at 125 pcf ±0.42 pcf ±0.21 pcf ±0.11 pcf
Composition error at 125 pcf ±1.25 pcf ±1.25 pcf ±1.25 pcf
Surface error (0.05 in., 100% void) –1.06 pcf –1.06 pcf –1.06 pcf
Backscatter Density, (98%) 4 inches
Precision at 125 pcf ±1.00 pcf ±0.50 pcf ±0.25 pcf
Composition error at 125 ±2.50 pcf ±2.50 pcf ±2.50 pcf
Surface error (0.05 in., 100% void) –4.68 pcf –4.68 pcf –4.68 pcf
Moisture
Precision at 15 pcf ±0.96 pcf ±0.48 pcf ±0.24 pcf
Surface error (0.05 in., 100% void) –1.12 pcf –1.12 pcf –1.12 pcf
Depth of measurement at 15 pcf – 8.5 inches
SI UNITS
Direct Transmission, (150 mm) 15 sec. 1 min. 4 min.
Precision at 2000 kg/m
3
±6.8 kg/m
3
±3.4 kg/m
3
±1.7 kg/m
3
Composition error at 2000 kg/m
3
±20.0 kg/m
3
±20.0 kg/m
3
±20.0 kg/m
3
Surface error (1.25 mm, 100% void) –17.0 kg/m
3
–17.0 kg/m
3
–17.0 kg/m
3
Backscatter Density, (98%) 100mm
Precision at 2000 kg/m
3
±16.0 kg/m
3
±8.0 kg/m
3
±4.0 kg/m
3
Composition error at 2000 kg/m
3
±40.0 kg/m
3
±40.0 kg/m
3
±40.0 kg/m
3
Surface error (1.25 mm, 100% void) –75.0 kg/m
3
–75.0 kg/m
3
–75.0 kg/m
3
Moisture
Precision at 240 kg/m
3
±15.4 kg/m
3
±7.7 kg/m
3
±3.8 kg/m
3
Surface error (1.25 mm, 100% void) –18.0 kg/m
3
–18.0 kg/m
3
–18.0 kg/m
3
Depth of measurement at 240 kg/m
3
– 215 mm
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