4.5 Digital LCD Ultrasonic Thickness Gauge with Measuring Range
0.75 - 300mm
1. Introduction
The ML160 ultrasonic thickness gauge is used to measure the thickness of materials that can only enter
one side. This instrument is suitable for many different materials,
including steel, cast iron, aluminum, copper, brass, zinc, Shi Ying
glass, polyethylene PVC, gray cast iron, ductile iron, iron, etc.
Dual probes can extend the measuring range to all possible ranges.
Sensor models can be used for special applications, including
coarse-grained materials and high temperature applications. Two
point calibration function; Two working modes: single point mode
and scanning mode; A coupling state indicator for displaying the
coupling state; Automatic sleep and automatic power-off function to
save battery life.
2 Features
1) Suitable for measuring the thickness of any hard material, such
as steel, cast iron, aluminum, copper, brass, zinc, quartz glass,
polyethylene polyvinyl chloride, gray cast iron, ductile iron, etc.
2)Automatic zero adjustment
3)Data storage function, can store up to 20 t files (up to 99
values per file)
4)Auto power off
5)High precision linear compensation circuit (1%H+0.1)
6)sound speed test (m/s), with 12 storage memories.
7)2.5 MHz for rough surface measurement
3. Specification
| Display | 4.5 digits LCD with EL backlight |
| Measuring Range | 0.75～300mm (in Steel) |
| Sound Velocity Range | 1000~9999 m/s |
| ML160 | 0.1/0.01mm |
| Accuracy | ±(0.5%Thickness+0.04)mm, depends on materials and conditions |
| Units | Metric/Imperial unit selectable |
| Power Source | Two “AA” size, 1.5 Volt alkaline batteries. 100 hours typical
operating time (EL backlight off |
| Communication | USB port |
| Outline dimensions | 150×74×32 mm. Weight:245g |
| Memory | 20 files (up to 99 values for each file) of stored values |
| Mode | Four measurements readings per second for single point measurement,
and ten per second for Scan Mode
|
Appendix A: Transducer Selection
| Model | Frequency MHz | Diameter mm | Measuring Range | Lower limit | Description |
| N02 | 2．5 | 14 | 3.0mm～300.0mm (In Steel) | 20 | for thick, highly attenuating, or highly scattering materials |
| N05 | 5 | 10 | 1.2mm～230.0mm (In Steel) | Φ20mm×3.0mm | Normal Measurement |
N05/90° | 5 | 10 | 1.2mm～230.0mm (In Steel) | Φ20mm×3.0mm | Normal Measurement |
| N07 | 7 | 6 | 0.75mm～80.0mm (In Steel) | Φ15mm×2.0mm | For thin pipe wall or small curvature pipe wall measurement |
| HT5 | 5 | 12 | 3～200mm (In Steel) | 30 | For high temperature (lower than 300℃) measurement |
Appendix B: Sound Velocities
| Material | Sound Velocity |
| In/us | m/s |
| Aluminum | 0.250 | 6340-6400 |
| Steel, common | 0.233 | 5920 |
| Steel, stainless | 0.226 | 5740 |
| Brass | 0.173 | 4399 |
| Copper | 0.186 | 4720 |
| Iron | 0.233 | 5930 |
| Cast Iron | 0.173-0.229 | 4400－5820 |
| Lead | 0.094 | 2400 |
| Nylon | 0.105 | 2680 |
| Silver | 0.142 | 3607 |
| Gold | 0.128 | 3251 |
| Zinc | 0.164 | 4170 |
| Titanium | 0.236 | 5990 |
| Tin | 0.117 | 2960 |
| Epoxy resin | 0.100 | 2540 |
| Ice | 0.157 | 3988 |
| Nickel | 0.222 | 5639 |
| Plexiglass | 0.106 | 2692 |
