Details

RoadReader Model 3430-3440 Moisture-Density Gauges

About Troxler Products

Troxler Electronic Laboratories, Inc. is a world leader in the manufacturing of testing/quality control measurement equipment for the construction industry. We are recognized worldwide as the industry standard for Nuclear Moisture/Density Gauges. In addition to nuclear gauges, Troxler is also a leader in the production of Gyratory Compactors and Asphalt Ignition Ovens. Troxler continues to set new product standards of quality and precision in the construction industry. For a complete list of Troxler equipment, please review this Products section.

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 some new features that are standard plus 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 has been updated and offers many features such as:

  • Improved operation and reliability with updated electronics
  • Fast recharge with NiMH batteries
  • Easier to read in all lighting situations with an enlarged backlit display screen - 8mm characters

Optional features offered for the Model 3430 include:

  • Remote Start keypad near the handle
  • Alkaline Batteries for Back-up Use
  • External Beeper
  • Spanish and French software, keypad & manual
  • Data Storage
  • USB Port

The Model 3440 is for users who want some user-friendly features. Along with the standard features provided in the Model 3430, the Model 3440 provides some additional features including:

  • Automatic Depth function
  • USB port for data transfer
  • Data storage (1000 readings)
  • Alkaline battery backup

Optional features offered for the Model 3440 include:

  • GPS location
  • Remote Start keypad near the handle
  • Backlit keypad
  • External Beeper
  • Spanish and French software, keypad & manual

Both models offer:

  • Density measurement capability in backscatter or direct transmission mode,
  • Moisture measurement in backscatter mode to allow quick, non-destructive testing of soil, asphalt and concrete materials
  • Direct readout of test results (wet density, dry density, moisture, % moisture, % voids, and % compaction)
  • Multiple count time options (15 seconds, 1 minute, 4 minutes)
  • User friendly menus and keypads
  • Options of 12”/2”, 12”/1” and 8”/2” depth measurement capability
  • 18 month warranty
For more information on the EGauge, please see the reference materials at the links below.
Please see the report, which references the EGauge, from the US Army Corps of Engineers Engineer Research and Development Center which is available online at:
 
 
The following link is to a paper presented on the EGauge at:
2nd IRF Asia Regional Congress and Exhibition, Kuala Lumpur, Malaysia, October 2016, pp 445-456.
The title is “New Low-Activity Nuclear Gauge for Soil Wet Density Measurement with Low
Regulatory Burden”
The publication and the papers can be accessed using this link: 
 

For information on the older legacy 3430 and 3440 Gauges, refer to the Documents TAB.

Specifications

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)

±20.0

±20.0

±20.0

Surface error (kg/m3)
(100% Void)

–17.0

–17.0

–17.0

Backscatter (98%, 100 mm)

Precision (kg/m3)

±16.0

±8.00

±4.00

Composition error (kg/m3)

±40.0

±40.0

±40.0

Surface error (kg/m3)
(100% Void)

-75.0

-75.0

-75.0

Surface error (kg/m3)
(100% Void)

-75.0

-75.0

-75.0

Moisture at 240 kg/m3

Precision (kg/m3)

±10.3

±5.1

±2.6

Surface error (kg/m3)
(1.25 mm, 100% void, kg/m3)

-18.0

-18.0

-18.0

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

Ambient: 32 to 158oF (0 to 70oC)

Surface:

350°F (175°C) for 15 minutes

Storage Temperature

-70 to 185°F (-55 to 85°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

 

Options

Model 3430 Options:

  • Remote start keypad near the handle
  • External Beeper
  • Data Storage (100 readings)
  • USB port for data transfer
  • Alkaline battery backup feature
  • Spanish and French language options

Model 3440 Options:

  • Remote start keypad on the handle
  • External beeper
  • Backlit keypad for low light conditions
  • GPS locations for measurements
  • Spanish and French language options

 

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