Quick Answer
What is the Trimble DiNi 0.3?
See also: Topcon DL-503 Digital Level Specs
See also: Leica Sprinter 150M Digital Level Specs
The Trimble DiNi 0.3 is a high-precision digital level with ±0.3mm/km accuracy using an invar rod. It uses electronic barcode rod reading for elimination of human reading errors and is designed for geodetic control, dam monitoring, and high-precision structural surveys.
Trimble DiNi 0.3 Digital Level — Complete Specs, Manual & Guide
Category: Digital Level | Brand: Trimble | Model: DiNi 0.3
The Trimble DiNi 0.3 is a geodetic-class digital level offering ±0.3mm/km accuracy when used with a matching invar bar-code rod. The instrument reads a barcode pattern on the leveling rod electronically, recording both height and distance automatically without manual notation. It stores data internally and outputs to USB or RS-232, making it ideal for precision leveling campaigns, bridge and dam settlement monitoring, and control surveys for major infrastructure projects.
Trimble DiNi 0.3 Full Specifications
| Accuracy (invar rod, std dev per km) | ±0.3mm/km |
| Accuracy (aluminum rod) | ±1.0mm/km |
| Telescope magnification | 32× |
| Compensator type | Electronic + magnetic damped pendulum |
| Compensator range | ±10 arc minutes |
| Shortest focusing distance | 1.6m |
| Measurement time | ~3 seconds per reading |
| Data storage | 6,000 readings internal, USB output |
| Display | Backlit LCD with height, distance, and staff readings |
| Power supply | 4× AA NiMH batteries or external DC |
| Battery life | ~10 hours continuous |
| Operating temperature | -20°C to +50°C |
| IP rating | IP54 |
| Tripod thread | 5/8" × 11 |
| Weight | 2.8 kg (6.2 lbs) |
Compatible Rods
- Trimble BROD3 Invar Rod — Required for ±0.3mm/km geodetic accuracy
- Trimble BROD12 Aluminum Rod — ±1.0mm/km accuracy for construction use
- Zeiss barcode rods — Compatible with DiNi barcode reading algorithm
Frequently Asked Questions — Trimble DiNi 0.3
What makes the Trimble DiNi 0.3 different from a standard level?
The DiNi 0.3 reads the barcode pattern on a matching staff electronically, recording both elevation and distance without manual reading or annotation. This eliminates human reading errors, speeds up leveling loops, and directly stores data for office download — advantages that are critical on large-scale precision surveys.
What accuracy does the Trimble DiNi 0.3 achieve?
With an invar barcode rod, the DiNi 0.3 achieves ±0.3mm standard deviation per kilometer of double-run leveling. With a standard aluminum barcode rod, accuracy is ±1.0mm/km. The invar rod's thermal stability is essential for achieving the 0.3mm spec.
What type of rod does the Trimble DiNi use?
The DiNi requires a barcode (bar-coded) leveling rod. It is not compatible with standard optical graduation rods for digital reading. For geodetic work, the Trimble BROD3 invar rod is required; the BROD12 aluminum rod is used for construction-grade digital surveys.
What data does the Trimble DiNi record?
The DiNi records staff height reading, horizontal distance to the rod, number of measurements averaged, and timestamps. Data stores internally in proprietary format and exports via USB to PC for processing in Trimble Business Center or any leveling software that accepts standard field data.
How does the DiNi 0.3 compare to the Leica Sprinter 150M?
The Leica Sprinter 150M is a construction-class digital level at ±1.5mm/km — suitable for site grading and floor surveys. The Trimble DiNi 0.3 at ±0.3mm/km is a geodetic-class instrument for dam monitoring, bridge settlement, and national control networks. The DiNi costs significantly more but is unmatched for precision leveling campaigns.
Related models: Topcon DL-503 | Leica Sprinter 150M | Sokkia B40
Log your Trimble DiNi calibration dates and field verification records with Gradelog's Equipment Registry. Free to start at gradelog.com.
