Johoyd SHT-180 Surface roughness measuring instrument (0.02μm ~ 160μm)
Technical Parameters:
Testing range:
Z axis（vertical): 200μm
XAxis (horizontal): 15mm
Resolution: Z axis(vertical): 0．01μm/±20μm; 0．02μm/±40μm; 0．04μm/±80μm
Measuring project:
Parameter: Ra、Rq、Rsm、Rsk、Rz、Rt、Rp、Rv、Rc、Rco
Standard: ISO,ANSI,DIN,JIS
Graphics: Bearing rate curve, roughness profile, direct profile
Filter: GAUSS filter
Sampling length(lr): 0.25,0.8,2.5mm
Rating length（ln）: Ln= lr×n n=1~5
Sensor:
Measuring principle: Displacement differential inductance
Stylus: Natural diamond, 90 cone angle, 5μm tip radius
Force measurement: <4mN
Lead: Carbide, sliding direction radius 45mm
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 error: Less than ±10%
Indication variability: Less than 6%
Power: Built-in lithium ion rechargeable battery, charged with DC5V, 800mA charger
Dimensions: 158x63.5x46mm
Weight: About 300g
Working environment
Temperature：- 20℃ ~ 40℃
Humidity：< 90% RH
Storage and transportation environment
Temperature：- 40℃ ~ 60℃
Humidity：< 90% RH
Measuring range:
Ra,Rq: 0.005μm ~ 16μm
Rz,R3z,Ry,Rt,Rp,Rm: 0.02μm ~ 160μm
Main feature:
1. Mechatronics design, small size, light weight and convenient to use;
2. High precision inductive sensor;
3. using DSP chip for control and data processing, fast speed, low power consumption;
4. GAUSS filter;
5. 128 × 64 dot matrix OLED LCD screen
6. built-in lithium ion rechargeable battery and charging control circuit, high capacity, no memory effect, continuous working time is more than 20 hours;
7. with automatic shutdown, memory and various information;
8. optional curved sensor, small hole sensor, measuring platform, extension rod and other accessories
9. Compatible with ISO, DIN, ANSI and JIS national standards;
10. the system language can be switched between Chinese and English, boot default Chinese system
11. the unit can be changed in order: work system → inch system; the default value is the work system.
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