Digital Professional Surface Roughness Tester Ra Rz

Features:

Be compatible with four standards of ISO, DIN, ANSI and JIS. When measuring the roughness of a surface, the sensor is placed on the surface and then uniformly slides along the surface by driving the mechanism inside the tester. The sensor gets the surface roughness by the sharp built-in probe.

This roughness causes displacement of the probe which results in change of inductive amount of induction coils so as to generate analogue signal, which is in proportion to the surface roughness at output end of phase-sensitive rectifier. The exclusive DSP processes and calculates and then outputs the measurement results on LCD.

* Multiple parameter measurement: Ra, Rz.

* Highly sophisticated inductance sensor.

* Built-in lithium ion rechargeable battery and control circuit with high capacity.

* Small in size, light in weight and easy to use.

* Manual or automatic shut down.

* Metric /Imperial Conversion.

* Use “USB data output” and “RS-232 data output” to connect with PC.

* Provide “Bluetooth ™ data output” choice.

Specifications:

Display		4 digits, 10 mm LCD, with blue backlight
Parameters		Ra、Rz
Measuring Range		Ra: 0.05~10.00 um / 1.000~400.0 uinch Rz: 0.020~100.0 um / 0.780~4000 uinch
Accuracy		≤ ± 10%
Fluctuation of display value		Not more than 6%
Sensor	Test Principle	Inductance type
	Radius of Probe Pin	10 um
	Material of Probe Pin	Diamond
	Dynamo-measurement of Probe	16 mN（1.6 gf）
	Probe Angle	90°
	Vertical Radius of Guiding Head	48 mm
	Maximum driving stroke	17.5 mm / 0.7 inch
	Cutoff length (l)	0.25 mm / 0.8 mm / 2.5 mm optional
Driving speed	Sampling	When Length = 0.25 mm, Vt = 0.135 mm/s
		When Length = 0.8 mm, Vt = 0.5 mm/s
		When Length = 2.5 mm, Vt = 1 mm/s
	Returning	Vt = 1 mm/s
Resolution		0.001 um, if reading ＜ 10um
		0.01 um, if 10um ≤ reading ≤ 100um
		0.1 um, if reading ≥ 100um
Evaluation length		1~5 L optional
Auto Power Off
Operating conditions		Temperature: 0~50 ℃ Humidity: ＜ 80 %RH
Power Supply		Built-in rechargeable Li-ion battery
Dimensions		140 × 52 × 48 mm
Weight		420 g

Standard Accessories:

1. Main Unit

2. Small Screwdriver

3. Standard Sample Plate

4. Standard Sensor

5. Carrying Case

6. Instruction Manual

General
Batteries Inside	Built-in rechargeable Li-ion battery
HS Code	9031809090
Accuracy	≤ ± 10%
Packing List	1. Main Unit 2. Small Screwdriver 3. Standard Sample Plate 4. Standard Sensor 5. Carrying Case 6. Instruction Manual
Size	140 × 52 × 48 mm