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Model 3440 Specifications |
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| Measurement (U.S. Customary Units) | |||
| Direct Transmission Density (6") | 15 sec | 1 min | 4 min |
| Precision at 120 pcf | ±0.42 pcf | ±0.21 pcf | ±0.11 pcf |
| Composition error at 120 pcf | ±1.25 pcf | ±1.25 pcf | ±1.25 pcf |
| Surface error (0.05", 100% Void) | -1.1 pcf | -1.1 pcf | -1.1 pcf |
| Backscatter (98%) (4") | 15 sec | 1 min | 4 min |
| Precision at 120 pcf | ±1.00 pcf | ±0.50 pcf | ±0.25 pcf |
| Composition error at 120 pcf | ±2.50 pcf | ±2.50 pcf | ±2.50 pcf |
| Surface error (0.05", 100% Void) | -4.7 pcf | -4.7 pcf | -4.7 pcf |
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| Moisture at 15 pcf | 15 sec | 1 min | 4 min |
| Precision at 15 pcf | ±0.64 pcf | ±0.32 pcf | ±0.16 pcf |
| Surface
error (0.05", 100% Void) |
-1.12 pcf | -1.12 pcf | -1.12 pcf |
| Measurement (S.I. Units) | |||
| Direct Transmission Density-150mm | 15 sec | 1 min | 4 min |
| Precision at 2000 kg/m3 | ±6.8 kg/m3 | ±3.4 kg/m3 | ±1.7 kg/m3 |
| Composition error at 2000 kg/m3 | ±20.0 kg/m3 | ±20.0 kg/m3 | ±20.0 kg/m3 |
| Surface error (1.25mm, 100% Void) | -17.0 kg/m3 | -17.0 kg/m3 | -17.0 kg/m3 |
| Backscatter (98%) (100mm) | 15 sec | 1 min | 4 min |
| Precision at 2000 kg/m3 | ±16.0 kg/m3 | ±8.0 kg/m3 | ±4.0 kg/m3 |
| Composition error at 2000 kg/m3 | ±40.0 kg/m3 | ±40.0 kg/m3 | ±40.0 kg/m3 |
| Surface error (1.25mm, 100% Void) | -75.0 kg/m3 | -75.0 kg/m3 | -75.0 kg/m3 |
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| Moisture | 15 sec | 1 min | 4 min |
| Precision at 250 kg/m3 | ±10.3 kg/m3 | ±5.1 kg/m3 | ±2.6 kg/m3 |
| Surface
error |
-18.0 kg/m3 | -18.0 kg/m3 | -18.0 kg/m3 |
| Calibration | |||
| Accuracy of Density Standards | ±0.2% | ||
| Accuracy of Moisture Standards | ±2.0% | ||
| Calibration Range | 70-170
pcf (1100-2700 kg/m3) Density 0-40 pcf (0-640 kg/m3) Moisture |
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| Radiological | |||
| Gamma Source | 8 mCi ±10% Cs-137 | ||
| Neutron Source | 60
uCi ±10% Cf-252 or |
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| Source Housing | Stainless Steel Encapsulation | ||
| Shielding | Tungsten, lead and cadmium | ||
| Surface Dose Rates | 20.5 mrem/hr max., neutron and gamma | ||
| Source Rod Material | Stainless Steel | ||
| Shipping Case | DOT 7A, Type A | ||
| Sealed Source Approved for Domestic and International Shipments | Special Form | ||
| Electrical | |||
| Time Accuracy and Stability | 0.005%, 0.0002% / °C | ||
| Power Supply Stability | 0.01% / °C |
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| Stored Power | 30 watt hours | ||
| Battery Recharge Time | 14-16 hours (automatic cutoff) | ||
| Charger | 110/220 V ac, 50-60 Hz or 12-14 V dc | ||
| Readout | 4 x 16 alpha-numeric liquid crystal display | ||
| Notes: Gauge returns to Gauge Ready (power saving mode) after two minutes of inactivity, except in standard, stat test, drift test, and in nomograph programs when a 30-minute delay is provided. After 5 hours of inactivity, gauge performs complete power shut-down. Battery packs are fully protected against overcharge and overdischarge.Remaining battery voltage is indicated on the display. Emergency Use - Capable of operation with D size alkaline batteries. |
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| Mechanical | |||
| Case | High
Impact Plastic 29.5 L x 14 W x 17 T in. |
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| Vibration Test | 0.1 in. (2.5 mm) @ 12.5 hz | ||
| Drop Test | 300 mm on 25 mm diameter steel ball | ||
| Operating Temp: | Ambient:
14 to 158°F (-10 to 70°C) Surface: 350°F (175°C) |
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| Storage Temp. | -70 to 185°F (-55 to 85°C) | ||
| Gauge Size (no handles) | 14.8
x 9.1 x 7.2 in. (376 x 231 x 183 mm) |
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| Gauge Height (with handles) | 12":
23.25 in. (591 mm) 8": 19.25 in. (489 mm) |
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| Weight | 29 lbs. (13.2 kg) | ||
| Shipping Weight | 90 lbs. (40.8 kgs) w/case | ||
| Available Models | 8"
or 12" index rod with 1" or 2" increments |
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