Specification :

Thickness gauge MT200

Ÿ Capable of performing measurements on a wide range of material.
Ÿ Four transducer models.
Ÿ Probe-Zero function, Sound-Velocity-Calibration function.
Ÿ Two-Point Calibration function.
Ÿ Two work modes: Single point mode and Scan mode.
Ÿ Coupling status indicator showing the coupling status.
Ÿ Auto sleep and auto power off function to conserve battery life.
Ÿ Optional software to process the memory data on the PC.
Ÿ Optional thermal mini-printer to print the measured data via RS232 port.
Configuration:
No Item Quantity Note

Standard Configuration 1 Main body 1
2 Transducer 1 Model: N05/90°
3 Couplant 1
4 Instrument Case 1
5 Operating Manual 1
6 Screwdriver 1
7 Alkaline battery 2 AA size
8

Optional Configuration 9 Transducer: N02 See Table3-1
10 Transducer: N07
11 Transducer: HT5
12 Mini thermal printer 1
13 Print cable 1
14 DataPro for Thickness Gauge 1 For use on the PC
15 Communication Cable 1

Specifications:
Ÿ Display128×64 dot matrix LCD with EL backlight.
Ÿ Measuring Range0.75^300mm (in Steel).
Ÿ Sound Velocity Range: 1000~9999 m/s.
Ÿ Resolution0.1/0.01mmselectable .
Ÿ Accuracy ±0.5%Thickness+0.04 mm
Ÿ Units: Metric/English unit selectable.
Ÿ Four measurements readings per second for single point measurement, and ten per second for Scan Mode.
Ÿ Memory for 20 files (up to 99 values for each file) of stored values.
Ÿ Upper and lower limit can be pre-set. It will alarm automatically when the result value exceeding the limit.
Ÿ Power SupplyTwo “AAâ€� size, 1.5 volt alkaline batteries. 100 hours typical operating time (EL backlight off).
Ÿ CommunicationRS232 serial port.
Ÿ CaseExtruded aluminum body suitable for use under poor working conditions.
Ÿ Outline dimensions132H X 76.2W mm.
Ÿ Weight345g

Appendix A: Transducer selection
Model Freq
MHZ Diam
mm Measuring Range Lower limit Description
N02 2 22 3.0mm^300.0mmIn Steel
40mm (in Gray Cast Iron HT200) 20 for thick, highly attenuating, or highly scattering materials
N05 5 10 1.2mm^230.0mmIn Steel ¦20mm×3.0mm Normal Measurement
N05
/90° 5 10 1.2mm^230.0mmIn Steel ¦20mm×3.0mm Normal Measurement
N07 7 6 0.75mm^80.0mm
In Steel ¦15mm×2.0mm For thin pipe wall or small curvature pipe wall measurement
HT5 5 14 3^200mm In Steel 30 For high temperature (lower than 300) measurement.

Appendix B: Sound Velocity in different materials
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 0.142 360 7
Gold 0.128 3251
Zinc 0.164 4170
Titanium 0.236 5990
Tin 0.117 2960
0.109 2 760
Epoxy resin 0.100 2540
Ice 0.157 3988
Nickel 0.222 5639
Plexiglass 0.106 2692
Poly styrene 0.092 2337
Porcelain 0.230 5842
PVC 0.094 2388
Quartz glass 0.222 5639
Rubber, vulcanized 0.091 2311
Teflon 0.056 1422
Water 0.058 1473