project

parameter

420

430

440

Zero calibration

Automatic zero calibration upon startup

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Measurement parameters

Launch echo mode, range 0.65-500mm

Standard measurement: meets common testing requirements

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Zui small value measurement: Meet the measurement environment of the surface or require the selection of Zui small value

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Differential measurement: displays the difference between the actual measured value and the set standard value

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Average measurement: Provide a measurement average of 2-9 points

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Upper and lower limit measurement: limit alarm

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Echo echo mode, range 3-25mm

Measure substrate thickness through coating

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Quick scan mode

Suitable for high temperature or measurement environments that require increased measurement speed, with 10 measurements per second, it can simultaneously display the maximum and minimum values during the measurement

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data storage

10 sets of 5000 data, dynamically allocated

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data output

USB interface, upload data stored in the instrument to the computer through the USB interface

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display information

Measurement value, sound velocity value, probe model, battery level, current data set

Indication accuracy

0.01mm when less than 99.99 mm; When it is greater than 100mm, it is 0.1mm

Company

Metric/Imperial

Sound speed range

1000m/s - 9999m/s

gain

Automatic; Manually adjustable

Sound velocity measurement

Determine the sound velocity of unknown materials and preset 9 commonly used material sound velocity values

Probe recognition

Automatic recognition probe

Shutdown selection

You can choose to automatically shut down in 2 minutes, 5 minutes, or choose not to automatically shut down

External dimensions

130 × 73 × 24 mm(L×W×H)

weight

About 190g

working temperature

-20 to 50 degrees Celsius

Battery

Two No. 5 batteries, battery level display, low battery alarm

working hours

Continuous measurement for no less than 80 hours

display

128 × 64 backlight

model

Crystal diameter

frequency

measuring range

working temperature

brief introduction

U5.0E

8MM

5.0MHZ

3-25MM(E-E)

0.8-300MM(T-E)

-12～+60℃

The 440 comes with a standard probe and a unique probe with a measurement mode through the coating. Zui small measuring tube outer diameter 20mm

U10.0

4MM

10.0MHZ

0.65-20MM

-12～+60℃

Small diameter probe. Zui small measuring tube outer diameter 10mm

U7.5

6MM

7.5MHZ

0.65-50MM

-12～+60℃

Mainly used for measuring thin-walled and small curved surfaces Zui small measuring tube outer diameter 15mm

U5.0

8MM

5.0MHZ

0.8-350MM

-12～+60℃

The 420430 comes with a standard probe, mainly used for measuring materials with flat surfaces or large curvatures. Zui small measuring tube outer diameter 20mm

U2.0

12MM

2.0MHZ

2.0-500MM

-12～+60℃

Coarse grained probe is mainly used for measuring coarse-grained materials such as cast iron. Zui small measuring tube outer diameter 30mm

U5.0HT

13MM

5.0MHZ

3.0-200MM

-12～+350℃

High temperature probes are mainly used for measuring materials with temperatures below 350 ℃,

Note: The contact time between the crystal and the high-temperature object being measured during measurement shall not exceed 5 seconds. Zui small measuring tube outer diameter 25mm