GR290&GR290P Surface Roughness Tester

This is a portable roughness instrument of high precision, real-time waveform display, supports Bluetooth connection, it is easy to operate, featured with comprehensive, fast measurement, high accuracy and good repeatability. The parameters are of the latest international standards, and the instrument is fully and strictly implementing these standards.

MAIN FEATURE

• Composite structure, electromechanical integration design, small size, light weight
  
• DSP chip control and data processing, high speed, low power consumption
  
• Automatic switching range and live display
  
• Graphic display of measurement realize their on -site verification, result with parameter and waveform is easy to check.
  
• Using TYPE C and Mini USB interface, used for communication and automatic control
  
• The display orientation can be changed for easy operation with left, right hand
  
• Upper and lower limit alarm can be set
  
• Allowed to print single or multiple records
  
• Conform to multiple standard
  
• Display full information, intuitive and graphical displays all parameters
  
• Built in lithium-ion rechargeable battery and control circuit, high capacity, no memory effect
  
• Graphically display the remaining battery power
  
• Continuous working time 20 hours
  
• Large capacity data storage, can store 100 item of raw data and measured profile
  
• Real-time clock setting and display for easy data recording and storage
  
• With automatic sleep, automatic shutdown power-saving features
  
• Reliable circuit and software design of prevent the motor stuck
  
• language: Chinese/English
  
• All parameters can be printed or any of the parameters which set by the user
  
• The glass calibration sample is with high precision, long service life not easy to be scratched
  
• Optional: curved sensor, very small holes sensor, measurement stand, extension rod, printer etc.
  

TECHNICAL DATA

STANDARD DELIVERY

Communication

Mobile APP for phone ( currently Android only)

Data view software for communication with PC or laptop

Export data to excel by SPC (for optional)

Can be controlled by PLC (for optional)

RELATED OPTIONAL ITEMS

Image	Description
	Extending Rod, extending rod increases the depth for pickup to enter the part. Length of extending rod is 50mm.
	Right Angle Rod, change the position of the sensor, mostly use for measure surface of particular groove.
	Standard Sensor, to measure most of the plane, inclined plane, cone surface, inner hole, groove and other surface roughness, in addition to the standard sensor, other special sensors are needed to measure the measuring platform.
	Curved Surface Sensor, to measure smooth cylindrical surface which radius is larger than 3mm, for the large radius smooth spherical surface and other surface also can obtain good approximation, need to work with platform KA520 or KA620.
	Small hole Sensor, to measure the inner surfaces of holes with radius more than 2mm, better to work with platform KA520 or KA620.
	Deep Groove Sensor, measure groove with width wider than 3mm and depth deeper than 10mm, or the surface roughness of step with height less than 10mm, also can used to measure the planar, cylindrical used with platform, better to work with platform KA520 or KA620.
	KA520 -Metal Substrate Working platform, adjustable height 200mm. With flexible and stable operation and wider application range. Roughness of complex shapes can also be measured. Measurement stand enable the adjustment of the position of stylus to be more precise and measurement to be more stable. If Ra value of measured surface is relatively low, Using measurement platform is recommended.
	KA620 -Marble Substrate Working Platform, adjustable height 300mm. With flexible and stable operation and wider application range. Roughness of complex shapes can also be measured. Measurement stand enable the adjustment of the position of stylus to be more precise and measurement to be more stable. If Ra value of measured surface is relatively low, Using measurement platform is recommended.
	Standard Roughness Calibration Block Multi-engraved lines (Square Wave) Made by optical glass, with high hardness, high accuracy standard roughness value, anti-scratch, has longer life than metal roughness block. Meet standard GB/T19067.1-2003 and ISO5436-1:2000 Approximation: Ra=0.1um, 0.2um, 0.4um, 0.8um, 1.6um, 3.2um, 6.4um Customized Value and Sine Wave available, welcome to inquire.

	Standard Roughness Calibration Block Single engraved lines Made by optical glass, with high hardness, high accuracy standard roughness value, anti-scratch, has longer life than metal roughness block. Meet standard GB/T19067.1-2003 and ISO5436-1:2000 Approximation: Ra=0.1um, 0.2um, 0.4um, 0.8um, 1.6um, 3.2um, 6.4um) Customized Value available, welcome to inquire.
	Roughness Comparator (30 pcs/set) This set contains standards of the six most important machining methods in the prevalent "AA" values. These surface roughnesses are used to compare and determine the degree of the surface finish by comparison method and eye estimation or magnifying glass. The surface rough contrast blocks is made of 45 super carbon steel except the GCr15 which is using to plat lapping the sample block. All 30 specimens are calibrated in u''AA (Arithmetical Average) and in the metric equivalents um Ra.
	Charge and Cable for Surface Roughness Tester Charger: US and EU standard optional Cable: USB interface
	Mini thermal printer External printer, connect by USB interface, suitable for Galaxy models.
	Thermal printing paper Suitable for mini thermal printer and Galaxy’s built-in printer Packing: 10pcs/bag