SRT-6450 Handheld Digital Display Surface Roughness Meter
1.Product Overview
This surface roughness measuring instrument is a handheld device
suitable for production site environments and mobile measurement
needs. It can measure the surface roughness of various machined
parts, calculate the corresponding parameters based on the selected
measurement conditions, and display all measurement parameters and
contour graphics on the display. This instrument can measure the
main parameters of the latest international standards and fully and
strictly adheres to international standards. The measurement
parameters comply with the national standard GB/T3505 "Product
Geometric Technical Specifications - Terminology, Definitions and
Surface Structure Parameters of Surface Structure Contour Method"
and are compatible with the standards of the United States,
Germany, Japan, the United Kingdom and other countries. It is
applicable to various machined parts, mechanical processing
manufacturing industries, inspection, commodity inspection and
other departments, especially suitable for on-site inspection of
large workpieces and production lines, as well as external
verification by inspection, metrology, commodity inspection and
other departments, without causing damage to the workpieces.
Measurable workpiece range: plane, outer circular surface, conical
surface, inner hole, groove, curved surface, etc. (Special surfaces
need to be measured with suitable sensors).
2. Technical parameters
| Name | Content |
| Measurement range | Z-axis (vertical) | 200μm； |
| X-axis (horizontal) | 17.5mm(0.71inch)； |
| Resolution | Z-axis (vertical) | 0.002μm±20μm； |
| 0.004μm±40μm； |
| 0.008μm±80μm； |
| Item | Parameters | Ra Rz Rq Rt； Rp Rv R3z R3y Rz(JIS)； Rs Rsk Rku Rsm Rmr；
|
| Standard | ISO4287 International Standard ANSI B46.1 American standard DIN4768 German standard JIS B601 Japanese standard |
| Graphic | Support ratio curve, roughness, filtering waveform |
| Filter | RC,PC-RC,Gauss,D-P； |
| Sampling length (lr) | 0.25,0.8,2.5； |
| Evaluation Length (ln) | Ln=lr×n n=1～5； |
| Sensor | Measurement principle | Displacement differential inductor |
| Stylus | Natural diamond, 90 cone Angle, tip half jin 5μm; |
| Force measurement | ＜4mN； |
| Guide head | Hard alloy, sliding direction radius 40mm; |
| Sliding speed | lr=0.25 ,Vt=0.135mm/S； |
| lr=0.8 , Vt=0.5mm/S； |
| lr=2.5 , Vt=1mm/S； |
| Return ,Vt=1mm/S; |
| Indication accuracy | 0.001μm； |
| Indication error | ±(5nm+0.1A)A:The standard value of the multi-line template
parameter Ra |
| Indication variability | Not more than 3%; |
| Residual contour | Not greater than 0.01μm; |
| Power supply | Built-in lithium battery, charged with DC5V, 2000mA charger; |
| External dimensions | 156mm×61mm×45mm； |
| Weight | About 450g |
| Working environment | Temperature: -20℃ to 40℃ Humidity: < 90%RH |
| Storage and transportation environment | Temperature: -40℃ to 60℃ Humidity: < 90%RH |
| Optional accessories | Curved surface sensor, small hole sensor, deep groove sensor,
extension rod, adapter rod, 200mm measuring platform, 300mm marble
measuring platform |
3. Functional Features
*It features an integrated mechanical and electrical design, is
compact in size, light in weight and easy to use.
*The ARM+DSP chip is adopted for control and data processing,
featuring high speed and low power consumption.
*Multi-parameter Ra, Rz, Rq, Rt, Rp, Rv, R3z, R3y, Rz(JIS), Rs,
Rsk, Rsm, Rku.
*A large measurement range of 200μm.
*320*240 color screen display, digital/graphic display; Highlight
without viewing Angle;
*The display is rich in information, intuitive and can show all
parameters and graphics.
*Compatible with multiple national standards such as GB, ISO, DIN,
ANSI and JIS;
*It is equipped with a built-in lithium-ion rechargeable battery
and charging control circuit, featuring high capacity and no memory
effect.
*There is an icon indicating the remaining battery power to prompt
users to charge in time.
*It can display the charging process instructions, allowing the
operator to know the charging level at any time.
*The continuous working time is more than 8 hours;
*Super-capacity data storage, capable of storing 100 sets of raw
data;
*Recording and storage of measured data;
*Reliable anti-motor stalling circuit and software design;
*Display measurement information, menu prompt information, and
various prompt and explanatory information such as power on/off.
*Ergonomic shell design, sturdy, compact, portable and highly
reliable;
*It can be connected to a computer for real-time data and
historical data transmission.
*The calibration sample blocks adopt optical glass substrates,
which feature high precision, are not easily scratched and have a
long service life.
*Optional accessories include curved surface sensors, small hole
sensors, deep groove sensors, measurement platforms, sensor
sheaths, extension rods, etc.
