NTR-200 Portable Surface Roughness Meter LCD Tester

This surface roughness measuring instrument is a hand-held instrument suitable for the production site environment and mobile measurement needs, which can measure the surface roughness of a variety of machined parts, calculate the corresponding parameters according to the selected measurement conditions, and display all the measurement parameters and wheel profile graphics on the display.

It is easy to operate, has comprehensive functions, performs quick measurements, maintains stable accuracy, and is convenient to carry. It is capable of measuring the main parameters of the latest international standards, and this instrument fully complies with international standards.

Product Detail

product detail

Features

Mechanical and electrical integration design, small size, light weight, easy to use;
High precision eddy current sensor;
Using DSP chip for control and data processing, fast speed, low power consumption;
GAUSS filter;
128X64 dot matrix OLED liquid crystal screen Built-in lithium ion rechargeable battery and charging control circuit, high capacity, no memory effect, continuous working time greater than 20 hours;
With automatic on-off, memory and various information;
Optional curved surface sensor, small hole sensor, measuring platform, connecting rod and other accessories
Adopt ISO, DIN, ANSI, JIS and other national standards;
The system language can be switched between Chinese and English, with Chinese system default boot recognition.
The unit can be changed in sequence: metric → British system; The default value is the metric system.

Product specifications

Model	NTR-200
Measurement Range	Z-axis (vertical)	200μm
Measurement Range	X axis (Horizontal)	15μm
Resolution	Z-axis (vertical)	0.001μm/±20μm
		0.002μm/±40μm
		0.004μm/±80μm
Measurement items	parameter	Ra、Rq、Rsm、Rsk、Rz、Rt 、Rp 、Rv、 Rc、 Rco
	Standard	ISO、ANSI、 DIN 、JIS
	Graph	Graphics Support Ratio Curves, Roughness, Original Contours, Filtered Waveforms
Filter		GAUSS
Sample length (lr)		0.25,0.8,2.5mm
Assess length(ln)		Ln=Ir *n n=1~5
Sensor	Test Principle	The displacement type differential inductance
	Probe Pin	natural diamond, taper angle, radius 5μm tip
	Test Force	<4mN
	Guiding Head	Cemented carbide, gliding direction radius: 45mm
	Gliding Speed	Lr=0.25, Vt=0.135mm/s
		Lr=0.8, Vt=0.5mm/s
		Lr=2.5, Vt=0.1mm/s
		Back Vt=1mm/s
Accuracy		≤±10%
Fluctuation of display value		≤ 6%
Power		Built-in Lithium rechargeable batteries
Dimension		15863.546mm
weight		308g
Working Environment Temperature		Temperature: -20°C ~ 40°C Humidity: < 90% RH
Storage & Transportation Environment		Temperature: -40°C ~ 60°C Humidity: < 90% RH