3430_3440_Plus.pdf
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- Attached to
- Competitive Selection OH|DOT31825-1
- Contract number
- DOT31825-1
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- Ohio
About this file
This document is a product specification sheet for the Troxler Model 3430 and 3440 Moisture Density Gauges, manufactured by Troxler Electronic Laboratories, Inc., located in Research Triangle Park, North Carolina. The document details the technical specifications, features, and capabilities of two nuclear moisture density gauge models used primarily by contractors, engineers, and highway departments for construction and material testing purposes.
The gauges offer nondestructive testing capabilities for soil, aggregate, concrete, and asphalt materials, with density measurement in backscatter or direct transmission modes and moisture measurement in backscatter mode. The Model 3430 is the simplest and most economical version, while the Model 3440 offers more advanced features like an Auto-Depth function, USB port, data storage, and optional GPS tracking. Both models meet ASTM standards D6938, D2950, and C1040, come with an eighteen-month warranty, and can be customized with various optional features such as an external beeper, language options, and remote start keypad. The gauges are powered by nickel-metal hydride (NiMH) rechargeable batteries with an alkaline battery backup and can operate in temperatures ranging from 32°F to 158°F.
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Text version
Troxler Model 3430 and 3440 Moisture
Density Gauges
New! Updated!
Simply Better Gauges
| • | New look | |
| - | Rugged, larger display screen; | |
| easy to use |
| • | Updated electronics | |
| - | Upgradeable and consistently | |
| reliable |
• Many user-friendly features www.troxlerlabs.com
The Model 3430 is a simple gauge for users who don’t need many extras.
The enhanced platform offers many updates and advantages, such as:
| • | Updated electronics | |
| • | Nickel-metal hydride (NiMH) batteries with fast | |
| recharge | ||
| • | A larger, backlit display screen (eight-millimeter | |
| characters) | ||
| • | An alkaline battery backup feature | |
| • | Optional user-friendly features | |
| - | An external beeper | |
| - | A remote start keypad on the handle | |
| - | Data storage | |
| - | A USB port for data transfer | |
| - | Spanish and French language options |
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 operator selects the density mode (backscatter or direct transmission) based on the material type and the thickness of the layer being measured.
The Model 3430 is the simplest and most economical gauge offered by Troxler. The Model 3440 includes a larger keypad and more available features that are needed for some construction projects.
Both models meet or exceed ASTM standards D6938, D2950, and C1040 and can be customized to meet your testing needs.34
Moisture content is measured in a nondestructive test mode. Moisture is determined through the detection of thermalized neutrons (i.e., “fast” neutrons that have been slowed by the hydrogen present in the material [normally in the form of water]).
Moisture Measurement
Both models offer
| • | density measurement capability in backscatter or |
| direct transmission mode and moisture measurement | |
| in backscatter mode to allow quick, nondestructive | |
| 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 (fifteen seconds, one |
| minute, and four minutes); | |
| • | moisture, density, and trench offsets; |
| • | user-friendly software menus and keypads; and |
| • | an eighteen-month warranty. |
Troxler also offers the enhanced platform for the Model 3440, which includes an updated display screen and updated electronics and batteries. Users can customize the gauge by adding the features that meet their needs.
Standard features include:
| • | An Auto-Depth function |
| • | A USB port |
| • | Data storage |
| • | A remote keypad |
| • | An alkaline battery backup |
Optional features include:
| • | An external beeper |
| • | A backlit keypad |
| • | Spanish and French language options |
| • | Global Positioning System (GPS) locations for |
| measurements |
This is a rapid, nondestructive means of testing materials (usually asphalt and concrete) that are approximately 4 in (10 cm) in depth. The gamma source remains inside the gauge, and the gamma rays that are scattered back toward the detectors are counted to determine the density.
Backscatter Measurement
The source rod extends through the base of the gauge into a predrilled hole up to 12 in (30 cm) deep in the material being tested. Gamma rays are transmitted from the density source through the test material and counted by detectors located within the gauge.
Direct Transmission Measurement
3008 E. Cornwallis Road, Research Triangle Park, NC 27709
1-877-TROXLER (1-877-876-9537)
1-919-549-8661 (International) www.troxlerlabs.com
All gauges offer the option of 12 in/1 in or 8 in/2 in measurement positions.
3430 3440 3440 w/ GPS Keypad Ten keys (simple) Thirty keys Thirty keys
Auto-Depth NA
Display Enlarged, Backlit Enlarged, Backlit Enlarged, Backlit
Alkaline Battery Backup
Data Storage Optional (100 readings) (1,000 readings) (1,000 readings)
USB Port Optional
Remote Start Keypad (Near Handle) Optional Optional
GPS NA NA
External Beeper Optional Optional Optional
Language Options (Spanish or French Software and Manual)
Optional Optional Optional
Backlit Keypad NA Optional
Troxler Service Center Locations
| • | North Carolina |
| • | California |
| • | Florida (Fort Myers) |
| • | Florida (Orlando) |
| • | Illinois |
| • | Louisiana |
| • | Texas (Dallas) |
| • | Texas (Houston) |
Visit www.troxlerlabs.com for address and contact information.
Meets ASTM standards D6938, D2950, and C1040, and AASHTO standards T310 and T355
RADIOLOGICAL SPECIFICATIONS
Gamma Source 0.30 GBq (8 mCi) ±10% Cs-137
Neutron Source 1.48 GBq (40 mCi) ±10% Am-241:Be
Source Housing Stainless steel, encapsulated
Surface Dose Rate (5 cm) 19 mrem/hr maximum, neutron and gamma
Case DOT 7A, Type A, Yellow II label, TI = 0.3
MECHANICAL SPECIFICATIONS
Gauge Dimensions (Including Handles) (L x W x H)
12 in = 14.5 x 9 x 23.5 in (36 x 22.9 x 59 cm) 8 in (H) = 19.5 in (49.5 cm)
Case Dimensions (L x W x H)
29.4 x 13.9 x 16.5 in (75 x 35 x 42 cm)
Shipping Weight 83 lb (37.6 kg)
Weight 31 lb (14.1 kg)
Operating Temperature
Ambient = 32°F to 158°F (0°C to 70°C) Surface = 350°F (175°C) for 15 minutes
Storage Temperature -70°F to 185°F (-55°C to 85°C)
ELECTRICAL SPECIFICATIONS
Main Power Source 5 C NiMH rechargeable pack
Backup Power Source Model 3430 = optional Model 3440 = 5 AA alkaline batteries
Stored Power 4 A hours
Battery Recharge Time 3 hours maximum; automatic cutoff
Charge Source 110/220 VAC 50 or 60 Hz or 12 to 14
VDC
Current Consumption Average 35 mA
Time Before Auto Shutdown Five hours of inactivity
Readout Four lines, twenty characters per line;
alphanumeric
Sealed Membrane Keypad
Model 3430 = ten keys Model 3440 = thirty keys
MEASUREMENT SPECIFICATIONS
.25 Minutes 1 Minute 4 Minutes
Direct Transmission (150 mm)
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
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