The Troxler nuclear moisture density gauges are used by many contractors, engineers, and highway departments for compaction control of soil aggregate, concrete, and full depth asphalt. The gauges meet or exceed the ASTM standards D6938, D2950, and C1040. The operator selects the density measurement mode, backscatter, or direct transmission based on the material type and the thickness of the layer being measured.
These updated gauges offer new standard features and many optional new features. The owner can customize the gauge to meet their testing needs.
The Model 3430 is the simplest and most economical gauge offered by Troxler. This gauge offers many features, including:
Optional features for the Model 3430 include:
The Model 3440 is for users who want user-friendly features. Along with the standard features provided in the Model 3430, the Model 3440 provides additional features including:
Optional features offered for the Model 3440 include:
Both models offer:
For information on the legacy 3430 and 3440 Gauges, refer to the Documents TAB.
Measurement Specifications
Direct Transmission (150 mm)
.25 min
1 min
4 min
Precision kg/m3 (pcf)
±6.8 (±0.42)
±3.4 (±0.21)
±1.7 (±0.11)
Composition error (kg/m3) (pcf)
±20.0 (±1.25)
Surface error (kg/m3) (100% Void)
–17.0 (-1.25)
Backscatter (98%, 100 mm)
Precision (kg/m3) (pcf)
±16.0 (±1.0)
±8.00 (±0.50)
±4.00 (±0.25)
±40.0 (±2.50)
Surface error (kg/m3) (100% Void) (pcf)
-75.0 (-4.68)
Moisture at 240 kg/m3
±10.3 (±0.64)
±5.1 (±0.32)
±2.6 (±0.16)
Surface error (kg/m3) (1.25 mm, 100% void, kg/m3) (pcf)
-18.0 (-1.12)
Mechanical Specifications
Gauge Size (including handles)
12” - 23.5”x9”x14.5” (59cm x 22.9cm x 36cm) 8” - 19.5” height (49.5cm)
Shipping Case Size
29.4” x 13.9” x 16.5”
(75cm x 35cm x 42cm)
Shipping Weight
83lbs (37.6kg)
Weight
31lbs (14.1kg)
Operating Temperature
32º to 122º F (0º to 50º C)
Surface
350°F (175°C) for 15 minutes
Storage Temperature
0º to 140º F (-18º to +60º C)
Radiological Specifications
Gamma Source
0.30 GBq (8mCi) ± 10% Cs-137
Neutron Source
1.48 GBq (40mCi) ± 10% Am-241:Be
Source Housing
Stainless steel, encapsulated
Surface Dose Rate
(5cm) 19 mrem/hr maximum, neutron and gamma
Shipping Case
DOT 7A, Type A, Yellow II label, TI=0.3
Electrical Specifications
Main Power Source
5C NiMH (Rechargeable Pack)
Backup Power Source
5 AA Alkaline Batteries – 3440 Optional - 3430
Stored Power
4 Ampere hours
Battery Recharge Time
3 hours maximum, auto cutoff
Charge Source
110/220 VAC, 50 or 60 Hz or 12-14 VDC
Current Consumption Average
35 mA
Time Before Auto Shutdown
5 hours of inactivity
Readout
4 x 20 Alphanumeric
Keypad
30 key sealed membrane – 3440 10 key sealed membrane – 3430
Model 3430 Options:
Model 3440 Options: