3A-300 Portable Borehole Logger
Our most popular logger — this very compact, highly refined, versatile device is in use around the world.
The 3A-300's highly durable design, optimal size, and ease of use make it truly unique among commercially available portable borehole loggers. It runs geophysical logs in boreholes to depths of 400 meters, with a levelwinding system that greatly reduces the mechanical force, friction, and operator intervention required.
A mechanical disc brake ensures probe descent is always controlled and the winch drum is secured. The unit is self-contained with an integrated motor controller, digital depth indicators, and a USB-compatible PC interface, running DELogger software with data output stored in the LAS format. It operates directly from a 12Vdc source and does not require a generator or inverter.
Specifications
| Winch Type | Motorized, semi-automatic levelwind with emergency hand crank |
|---|---|
| Braking | Disc brake with uni-directional clutch |
| Cable | 300M of 0.10″ single conductor cable |
| Dimensions | 54cm × 45cm × 52cm (21.25″ × 17.75″ × 20.63″) |
| Weight | 34Kg (75 Lbs) |
| Power | External 12–14vdc @ 10A max (3A nominal) |
| Probe Compatibility | All probes except video |
Ready to spec a 3A-300 for your project?
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