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tiltmeters
The JMZX-7100L sliding inclinometer is a field profiling instrument within the Kingmach tiltmeters group. It is used for measuring horizontal displacement changes inside soil masses in dams, building foundations, embankment slopes, underground construction projects, geotechnical slopes, and port engineering. The instrument combines a sliding inclinometer probe with a 3D-MEMS silicon capacitor biaxial inclinometer sensor and an integrated testing instrument. It supports mobile phone APP reading, Bluetooth transmission, large storage capacity for millions of readings, data download for numerical and graphical analysis, real-time wireless network sending, Chinese and English menus, and dedicated post-processing software. Published specifications include +/-90 degrees sensor range, 500 mm guide wheel spacing reference, a probe size of 26 mm by 776 mm, 8.5 kg total weight, 2 kg probe weight, -20 degrees Celsius to +60 degrees Celsius operation, 180 m water pressure impermeability, and 100 g vibration resistance.
Application of tiltmeters
Port and underground construction projects use tiltmeters to follow soil movement, retaining structures, and deep displacement where surface survey alone is limited. JMZX-7100L is described for port engineering and underground construction projects, with Bluetooth communication, APP reading, large storage, and post-processing software. The sliding probe method is useful when engineers need a deformation profile along an inclinometer casing rather than one fixed surface angle. Field crews should keep casing ID, depth interval, probe orientation, reading direction, groundwater condition, and operator notes consistent. Data can then be compared with excavation, dredging, surcharge loading, pile work, or retaining wall movement. Good field discipline prevents a profile change from being confused with probe handling differences.
The future of tiltmeters
Future tiltmeters will make field commissioning more traceable. Many tilt problems begin with unclear axis direction, unstable mounting, wrong channel naming, poor cable protection, or missing baseline notes. Products with electronic identifiers and digital communication can reduce some of these errors, but field records still matter. Future commissioning tools may guide technicians through axis confirmation, zero reading, communication check, temperature note, photograph capture, and platform channel verification. JMQJ-7315ADS, JMQJ-7315RTU, JMQJ-7915ATS, JMZX-7100L, and JMZX-4QH each need different acceptance steps. A guided process can make the first reading more trustworthy and reduce later debate about whether a curve changed because of the site or the setup.
Care & Maintenance of tiltmeters
Borehole systems for tiltmeters need careful mechanical and data maintenance. JMQJ-7915ATS uses a multi-point tandem inclinometer string with universal joints, connecting rods, suspension, cables, and an orifice acquisition module. During installation, record measurement spacing, borehole ID, casing condition, orientation, group assignment, and factory configuration. During inspection, protect the orifice, check cable strain, review module status, and compare depth points for abnormal jumps. If one depth changes sharply while neighboring depths remain steady, inspect both the ground condition and the instrument chain. Borehole data is most useful when every depth point remains tied to a clear physical position and a stable orientation reference.
Kingmach tiltmeters
For procurement teams, Kingmach tiltmeters are not one single instrument type. The product group includes JMQJ-7315ADS fixed tilt sensors, JMQJ-7315RTU integrated wireless tilt units, JMQJ-7915ATS vertical in-place inclinometer systems, JMZX-7100L sliding inclinometers, and JMZX-4QH inclination acquisition modules. Each serves a different monitoring method. A fixed tiltmeter follows one structural point. A wireless integrated unit reduces site wiring. A vertical in-place system reads multiple depths in a borehole. A sliding inclinometer supports field profiling inside inclinometer casing. An acquisition module collects many downhole sensors through grouped communication. A good purchase record should match range, accuracy, communication mode, protection grade, power supply, installation method, and site access. That makes the instrument package easier to install, verify, and maintain after delivery.
FAQ
Q: What is the difference between a fixed tiltmeter and a sliding inclinometer?
A: A fixed tiltmeter monitors one installed point continuously, while a sliding inclinometer is moved through casing to build a deformation profile by depth.Q: What is the difference between JMQJ-7315ADS and JMQJ-7315RTU?
A: JMQJ-7315ADS is a wired RS485 fixed tiltmeter, while JMQJ-7315RTU integrates wireless 4G communication and battery-powered remote monitoring.Q: When should a vertical in-place inclinometer be used?
A: Use it when deep internal deformation needs multi-point automatic monitoring inside a borehole rather than occasional manual profiling.Q: What does the JMZX-4QH module do?
A: It collects measurement data from multi-point vertical in-place inclinometer strings and uploads the data through wired or wireless means.Q: How should tilt alarms be reviewed?
A: Review angle change with rate, direction, nearby instruments, weather, construction activity, and visual inspection before deciding the response.
Reviews
Andrew Lee
The visualization software is intuitive and powerful. It helps us analyze monitoring data efficiently.
Michael Anderson
The strain gauges and load cells are extremely accurate and stable. They performed very well in our bridge monitoring project. Highly recommended!
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