Rz Rmax Roughness depth DIN 4768
The Mean Roughness depth Rz, is the mean of five roughness depths of five successive sample lenghts Le of the roughness profile.
The maximum Roughness depth Rmax is the largest of the five roughness depths.
PRECISION DEVICES, INC. Series 400
Always at the forefront of technological development in surface measurement systems, PDI introduces the completely modular Series 400.
All 400 series models utilize the same basic hardware, with model differences determined by the software installed, style of tracer ad optional plotter. Starting with a basic Ra (Roughness Average) system, the units may be upgraded for future needs by simply adding parameter modules.
Simplicity is also inherent in the operation of the instrument, with prompts to guide the operator as the system gathers data, calculates the results and automatically displays the selected parameter, cutoff and system settings. The vacuum fluorescent display is bright and has a wide viewing angle, making it easy to read from any position.
| Skid-Referenced Models | Parameters Available | Skidless Models | ||||||||||||||||||||||||||||||||||||||||||||||
Model 410 Single Parameter Unit | Ra (Roughness Average) | Model 420 Single Parameter Unit | ||||||||||||||||||||||||||||||||||||||||||||||
Model 430 Multiple Parameter Unit | Ra plus Rq,Tt, (1-5), Ram, Rp, Rpm, R3z, Pc, Rz (DIN), Rz (ISO), Rv | Model 440 Multiple Parameter Unit | ||||||||||||||||||||||||||||||||||||||||||||||
Model 460 Advanced Parameter Unit | All the above plus tp, Htp, Hsc, Sm, Rsk, Rku | Model 470 Advanced Parameter Unit | ||||||||||||||||||||||||||||||||||||||||||||||
Model 460K Rk parameter Unit | All the above plus Rk, Rpk, Rvk, Mr1, Mr2, Rpk, Rvk, Vo, Λa, Λq, Δa, Δq | Model 470K Rk Parameter Unit Product Components The Series 400 Amplifier
The Series 400 Amplifier is a sophisticated yet easy to use instrument with a modular surface texture program.
All models feature a vacuum fluorescent display and sealed membrane keypad. The RS-232 communication port is standard (RS-485 optional), along with a remote start switch port and lockout key switch. Battery power is included on all models with the graphic plotter, and is optional on all other models.
Operation is at once simple, sophisticated and secure. the instrument is configured by an easy-to-use set-up menu. The user selects the proper settings for the cutoff, stroke length, standard 32RC and Gaussian filters (Rk filter optional), parameter functions, serial port and plotter operation. Set the exact stroke length required or use the standard 5-cutoffs. After setting, the programming can be secured by a turn of the lockout key, which prevents inadvertent changes. Once configured, the system operates by pressing the Start Button or through use of an optional remote start switch. Piloters/Motor Drives The Skid-Reference Piloter
Skid-referenced systems are designed to measure normal I.D., O.Dd., and flat surfaces. The skid-referenced motor drive (piloter) contains a motor which moves the linkarm with the tracer across the surface to be sampled. The tracers have skidpads which establish a reference line. The transducer translates the vertical motion of the diamond tip stylus in relation to the reference line. The piloter traverses at a sped of 0.0 in/sec (2.54mm/sec) for the travel length specified and can be set to acquire data in either direction. Our patented Lite-Touch Linkarm protects the tracer and surface from inadvertent damage and comes standard with each system, unless otherwise specified. The Skidless Piloter
The skidless motor drive has an internal reference in the drive unit. Skidless instruments of the 400 Series are designed to evaluate small, difficult-to-reach areas that are not accessible by skid-type tracers. The motor drive is mounted on a granite base to minimize vibration and to provide a level, stable surface for locating the work piece. For more precise measurement setup, the stroke length can be set to the proper distance for the surface being measured. This is ideally suited for short stroke requirements such a grooves. This drive may also be programmed to acquire data in either direction. The Rotary Piloter
The rotary piloter is designed to measure inside and outside diameters of parts such as balls, ball studs, and extruded tubing. The part is rotated across a stationary tracer, through an arc perpendicular to the lay. The drive, with proper tooling, will trace parts with a range from 6.35mm to 63.5mm (0.250in to 2.500in) inner or outer diameter. The amplifier will automatically adjust the speed of the rotary piloter, based upon the diameter of the measurement area, to attain a constant speed of (0.1 in/sec 2.54 mm/sec.).
The piloter is able to take readings in clockwise or counterclockwise directions. It is easy to use, and can be changed from one part to another in seconds. The part can be mounted with exchangeable clamping devices. Optional Thermal Graphic Plotter An internal graphic plotter can be added to any of the 400 series amplifiers. The plotter is totally configurable to produce output that is appropriate to the user's needs. Plotter operation can be disabled, enabled or set for automatic pilot. The user may print any combination of setup information, parameter values, roughness profile and Bearing Area Curve (BAS). The roughness profile printout has selectable horizontal and verical magnification. Accessories Skid-Referenced Tracers PDK The versatile PDK tracer, with the single SMT skidmount, can measure a 1/8 in. I.D. and O.D. to flat surfaces. The PDK has a series of standard, interchangeable double skidmounts available for most surface texture requirements.
PDM Rugged and durable, the PDM style tracer provides accurate reading throughout the surface texture measurement range. From super-fine to high micro finished, the PDM tracer offers the reliability for critical surface evaluation. Standard skidmounts permit measurements on outside diameters as small as 1/8 in to inside diameters form 1-13/16 in to flat surfaces. Skidless Tracers PDG The PDG tracer does not use skids, but has various standard stylus assemblies that mount onto the tracer beam.
Other standard tracers and accessories are available based upon specific applications. If a standard product does not meet your exact need, Precision Devices, Inc. will design and build a tracer or stylus assembly that will satisfy your requirements. Standard Skidmounts for PDK Tracers
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Phone 888-789-7277 * 724-789-7853 * Fax 724-789-7288 Email: sales @rappindustrialsales.com
