Field work and equipment0 answersAI answer
Looking for a practical daily routine for instrument checks in the field.
Asked October 25, 2026
AI answer · not yet verified by a surveyor
A short routine catches most problems [1]:
- Leveling: check the tribrach and level bubble, and the optical or laser plummet against a known mark.
- Collimation and trunnion axis: run the instrument's two-face check, and recalibrate if the errors drift beyond the manufacturer's spec.
- Prism constant and atmospheric settings: confirm the prism type and constant, plus temperature and pressure entries (or the built-in sensor).
- Height of instrument and rod: measure twice and record both.
- Backsight check: observe a second known point, and check the distance and elevation against the record values before collecting data.
- Rod bubble: check it regularly against a plumb reference.
Keep a calibration log and send the instrument for service on the recommended schedule. For elevations, confirm the benchmark and datum match the project [2].
General information only. Answers here are not a survey or legal advice, and no one here can tell you where your boundary is. For your property, hire a licensed land surveyor in your state; for legal questions, a real-estate attorney.