The R-4 electromagnetic settlement gauge is a high-precision multi-point settlement gauge that can be used to measure the settlement and uplift of soil and rock formations, as well as the settlement of various building foundations and deformations of tailings dams.
The R-4 magnetic settlement instrument is a high‑precision multi‑point device for measuring settlement and uplift of soil and rock. It uses magnetic anchor blocks arranged along a settlement pipe, with a probe that detects the blocks and reports depth via a tape scale and audible signal.
The manual describes two anchor block configurations (spring‑type for borehole installation and plate‑type for dam or backfill installation), reading instrument operation, installation diagrams, and ordering information for various probe and pipe options. This manual is written in Chinese.
Two types are offered: spring‑type (簧片锚块) for borehole installation and plate‑type (平板锚块) for dam and backfill installation.
The order must specify the reading instrument model, borehole diameter and depth, settlement pipe model and length, joint type, and anchor block model (including number of spring plates).