Test & measurement instruments

Ultrasonic Thickness Gauge LS211 - 0.8-600 mm on Steel

Linshang  |  SKU: INS02-2137
$593.76 USD
Free standard shipping to supported destinations. Taxes calculated at checkout.
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Description

The Linshang LS211 ultrasonic thickness gauge measures material thickness from one accessible side using a dual-element probe. With the standard 5 MHz, 10 mm probe, its range is 0.8–600 mm on 45# steel, with display resolution changing according to the measured thickness.

Main unit with standard probe

This LS211 package includes the main unit and standard 5 MHz, 10 mm dual-element probe.

The compatible 7 MHz PT-06 accessory probe covers 0.75–80 mm on 45# steel for smaller measuring areas. The 2 MHz ZT-12 and 5 MHz GT-12 probes cover 3–200 mm on 45# steel for coarse-grained materials and elevated-temperature workpieces respectively. Their ranges and operating conditions differ from the standard probe.

LS211 probe positioned on a glass bottle
LS211 probe positioned on a glass bottle

Standard-probe measuring specifications

Standard probe 5 MHz, 10 mm dual-element probe
Standard-probe range on 45# steel 0.8–600 mm
Display resolution 0.8–10 mm: 0.001 mm; 10–100 mm: 0.01 mm; 100–600 mm: 0.1 mm
Accuracy in standard mode; H is reference thickness H < 10 mm: ±0.05 mm; H ≥ 10 mm: ±0.5%H
Minimum measuring area, standard probe 10 mm diameter
Standard-probe pipe limit on 45# steel 20 mm outside diameter x 3 mm wall
Sound velocity setting 1000–19999 m/s
Display and units 240 x 160 dot-matrix LCD; mm / inch
Power Two 1.5 V AA alkaline batteries
Host dimensions 142 x 72 x 28 mm
Instrument weight Approx. 230 g
LS211 probe on a red-coated metal pipe
LS211 probe on a red-coated metal pipe

Sound velocity, coupling and coated surfaces

Set the sound velocity for the material, or determine it from a known-thickness piece of the same material. Apply couplant, hold the probe flat and wait for stable coupling. The opposite surface must be parallel or coaxial with the test surface. Steel, aluminum, glass, ceramics and suitable plastics require an adequate ultrasonic signal and the correct velocity setting.

With the standard probe, E-E mode uses successive back-wall echoes to measure the substrate beneath a coating. Its stated limits are 0.2–2.5 mm coating thickness and 4–60 mm substrate thickness on 45# steel. Enable E-E mode for that application; the full normal measuring range does not apply in this mode. It reports substrate thickness rather than a separate coating thickness.

Save and review a measurement series

Bluetooth connects the gauge to the UT and HL app for Android 7.0 or later. Dedicated PC software supports measurement data handling and export. The instrument can store up to 999 readings; statistics mode shows maximum, minimum and average values, while QC mode compares readings with user-set limits.

Automatic gain adjusts the received signal to the material and thickness. Perform reference calibration with the built-in reference block, and clean the probe and block after use. Display resolution is the smallest displayed increment, not an accuracy guarantee for every material or probe.