Detailed parameters:
Measurement parameters:Ra,Rz=Ry(JIS),Rq,Rt=Rmax,Rp,Rv,R3z,R3y,RzJIS,Rs,Rsk,Rku,Rsm,Rmr
Measurement range:Ra:0.005~16.00Mm
Display range:Ra,Rq:0.005~16Mm;Rz,Rv,R3z,Rt,Rp,R3z:0.02~160Mm Rsm,Rs:1mm;Rmr:0~100%;Rsk:0~100%
Indication accuracy:0.001Mm
Range: ±20um,±40um,±80um
Sampling lengthL:0.25,0.80,2.50,automatic
Evaluation length:1L~5L(Optional,LFor sampling length)
Measure travel length:3L~7L(Optional,LFor sampling length)
Maximum driving stroke length:17.5mm / 0.71 inch
Minimum driving stroke length:1.3mm / 0.052 inch
Indication error: ≤±7%Indication variability<6%Needle tip angle90°
Measuring contours: roughness, waviness, raw contour filterRC,PC-RC,Gauss,D-P
Internal storage capacity:100group data
Data interface:USB
Battery: Built in lithium-ion rechargeable battery
Overall dimensions:141 mm×55 mm×40mm
Product weight:400g
Optional attachments: Surface sensor, pinhole sensor, groove sensor, deep groove sensor, extension rod, micro printerKA620measurement platform
Portable roughness meterSDR990It is a high-precision surface smoothness testing instrument that can measure the roughness of various machined parts, including flat surfaces, inclined surfaces, outer cylindrical surfaces, curved surfaces, small holes, grooves, and axles.

Features:
Mechatronics design, small size, light weight, easy to use;
adoptDSPThe chip is used for control and data processing, with fast speed and low power consumption;
compatibleISOTheDINTheANSITheJISMultiple national standards;
Continuous working time greater than20hour
Large capacity data storage, capable of storing100Original data and waveform of the group.
Real time clock setting and display, convenient for data recording and storage.
Equipped with energy-saving functions such as automatic sleep mode and automatic shutdown
Reliable anti motor dead circuit and software design
Display measurement information, menu prompt information, error information, and various prompt instructions such as power on/off;
Chinese/English language selection;
Can connect to computers and printers;
Print all parameters or print any parameters set by the user.
Optional Bluetooth function.
Optional accessories include surface sensors, small hole sensors, measurement platforms, sensor sleeves, extension rods, etc.
Work environment: temperature- 20℃~ 40℃
humidity< 90%RH
Storage and transportation environment: Temperature:- 40℃~ 60℃
humidity< 90%RH
There is no vibration or corrosive medium around
Standard configuration:
·Roughness tester host 1Taiwan
·Standard sensor 1a
·Multi line standard sample block 1block
·Adjustable bracket 1a
·Power adapter 1set
·Instruction manual 1a
·Certificate of Conformity 1a
·Warranty Card 1a
