DeFelsko PosiTector RTR 3D Replica Tape Reader, Roughness Meter & Surface Imager

The new PosiTector® RTR 3D captures high-resolution 3D surface imagery and common 2D/3D parameters at a fraction of the cost of drag stylus or confocal microscope instruments.

This powerful new probe incorporates and improves upon the technology in the PosiTector RTR P (discontinued), and continues to provide profile height and peak count parameters in addition to 2D/3D profile parameters such as Rz, Rz, Sq, SPD, and others.

The patented PosiTector RTR 3D is ideal for measuring the surface profile of flat, curved, or irregular surfaces in the field or laboratory. Simply create a replica by burnishing Testex Tape onto the surface and insert it into the instrument. Press the two buttons and in seconds, the hand-held PosiTector RTR 3D displays imagery and measures common 2D and 3D profile parameters such as Ra, Rz, Sq and Spd, traceable to a national laboratory.

  • 3D Surface Imaging at a fraction of the cost
  • create a replica by burnishing Testex Tape on a surface and insert into instrument - 3D imagery and 2D/3D parameters are displayed in seconds!
  • Reports common Roughness Parameters: Ra, Rq, Rz, Rp, Rv, Rt, Rpc (2D), and Sa, Sq, Sz, Sp, Sv, and Spd (3d)
  • Ideal for field or laboratory use; flat, curved, or irregular surfaces,
  • Certified and traceable to an accredited national laboratory
  • Download 3D .SDF image files for analysis in included PosiSoft or third-party software

PosiTector RTR 3D shares the features of all PosiTector gauges:

  • Available in Standard or Advanced models
  • High-contrast, colour LCD display with back-light
  • Enhanced one-handed menu navigation
  • RESET instantly restores factory settings
  • Selectable display languages
  • Mils / microns switchable
  • Flip Display enables right-side-up viewing
  • Screen Capture saves screen images for record-keeping and review
  • Sealed USB port for fast, simple connection to PC and continuous power supply.
  • USB cable included
  • PosiSoft USB Drive - stored readings and graphs can be accessed using universal PC/Mac web browsers or file explorers. NO software required.
  • Every stored measurement is date-time stamped
  • PosiSoft Software Solutions for viewing, analysing, and reporting data
  • Uses alkaline or rechargeable batteries (built-in battery charger)
  • Solvent, acid, oil, water, and dust resistent; waterproof
  • Rugged indoor/outdoor instrument ideal for field or laboratory use, flat, curved, or irregular surfaces
  • Shock-absorbing, protective rubber holster with belt clip
  • Conforms to national and international standards including ISO and ASTM
  • Certificate of Calibration, including Ra and Rt measurements, showing traceability to an accredited national laboratory
  • Two-year manufacturer's warranty against defects on gauge body and probe
  • Standard gauges: store 250 readings per probe; stored readings can be viewed or downloaded via USB
  • Advanced gauges: store up to 100,000 in up to1000 batches
  • live graphing of measurement data
    • WiFi technology wirelessly synchronizes with PosiSoft.net and downloads software updates
    • Bluetooth 4.0 Technology for data transfer to mobile devices running the PosiTector App, or optional portable printer. BLE API available for integration into third-party software.
    • On-screen Batch Annotation - add notes, change batch names, and more, with built-in QWERTY keyboard

PosiTector RTR 3D Specialize Features:

  • Measures Peak Height (HL) and common 2D/3D Profile Parameters such as Ra, Rz, Sq, Spd and more
  • Calculates and records all fourteen 2D and 3D parameters with each measurement
  • Applies short and long cut-off filters and discard lengths to optimize the analysis for a specific application
  • Orients the 2D trace between horizontal, vertical, and diagonal (XY, YX)
  • Dowload high-resolution Surface Data Files (.SDF) for analysis in the included PosiSoft or third-party software
  • Generate two dimensional (2D) and three-dimensional (3D) thumbnail images for inclusion into reports and confirming consistent blasting results.


SDF Images:

The PosiTector RTR 3D calculates and records all fourteen 2D and 3D parameters for each measurement. From the information acquired, the gauge produces a .SDF - Surface Data File - that allows the user to evaluate the surface replica from different perspectives for different information. Using PosiSoft Desktop Software, the SDF file can be rotated and moved, to analyze a portion of the replica, and to filter the information being evaluated.



Sample RTR 3d SDF Report

Parameters and thumbnail images can be viewed on-screen, on computer via USB, or using PosiSoft.net cloud-based app, or PosiSoft App for mobile devices. To get the most functionality out of your RTR 3D, free PosiSoft Desktop Software   includes a built-in .SDF viewer for analysis of measurements - analyze a trace from the 3D plot, change filtering settings, and view 2D and 3D parameters. Create custom, professional PDF reports including measurements, photos, screen captures, and the imagery and surface profile parameters generated by the PosiTector RTR 3D. Multiple custom layouts can be saved as templates, cover pages, logos can be inserted into reports with user-selectable font sizes. Select the what to include in your report from downloaded charts, histograms, readings, time stamps, and more. Multi-batch reports can be built from one or multiple probes and instrument types.







PosiTector RTR 3D is supplied with customer choice of Standard or Advanced PosiTector RTR 3D, stainless steel burnishing tool, burnishing ball, 5 cleaning cards, check shim(s), microfibre cleaning cloth, surface cleaning putty, protective rubber holster with belt clip, wrist strap, 3 x AAA alkaline batteries, protective rubber boot and nylon carrying case, protective lens shield, instructions, USB cable, traceable Long Form Certificate of Calibration including Ra and Rt values, and 2-year manufacturer's warranty against defects on both gauge body and probe.


PosiTector RTR Specifications

Measuring range (H)

20 - 115 µm

0.8 - 4.5 mils

Measuring range (Rt)

10 - 115 µm

0.4 - 4.5 mils

Measuring Roughness (Ra)

2 µm

0.08 mil / 80 µin

Accuracy (H)

+5 µm

+ 0.2 mil

Accuracy (Rt) *

+ (5 µm + 5%)

+ (0.2 mil + 5%)

Accuracy (Ra) *

+ 0.25 µm + 5%)

+ (0.01 mil + 5%)

Anvil Pressure

1.1 Newtons

110 grams-force

Anvil Size

6.25 mm

0.25 inch

Field of View

3.8 x 3.8 mm

0.149 x 0.149 inch

Lateral Sampling

3.7 µm

0.145 mil

Vertical Resolution

100 nm - 2D / 3D

10 nm - SDF

3.93 µin - 2D / 3D

0.393 µin - SDF


.01 µm

0.01 mil

* when measured using Testex Optical Grade X-Coarse Replica Tape


2D Roughness Parameters and 3D Height/Amplitude Parameters Measured by PosiTector RTR 3D

Optical Grade Testex Tape is required for measurement of 2D/3D parameters


Black and White 2D Thumbnail Images:

Black-and-white-2D-thumbnail-image-taken-by-PosiTector-RTR3DPosiTector RTR 3D takes a black-and-white, 2-dimensional photograph of the burnished Testex Tape. The bright areas are more highly-compressed areas of tape, which are impressions of the peaks of the surface profile, and the dark areas are lower compressed tape, or the valleys of the profile replica. This is available only in Advanced models.


3D Colour Thumbnail Images:


PosiTector RTR 3D produces 3-dimensional (3D) images of the Testex surface Replica. A low-resolution colour imgae is generated and displayed on the gauge display, and can be exported into inspection reports. This feature is available only in Advanced gauges.


To download pdf data sheet, please click PosiTector RTR 3D

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