The Surface is that part of a body with which it interacts with the enviornment.
Generally, the surface does not exhibit a regular structure but contains a number of deviations which are divided into form, waviness and roughness.
The Tracing method is an inspection method for the two-dimensional tracing of the surface. It requires a surface pick-up to be traversed horizonally across the surface at constant speed.
The Traced profile is the surface profile traced by the pick-up stylus.
Features
● Measuring range of up to 150µm (6000µin)
● Units µm/µin selectable
● Standards: SIN/ISO/JIS and CNOMO (Motif) selectable
● Traversing lengths as per DIN EN ISO 4288/ASME B461: 1.75mm, 5.6mm,17.5mm (.07in, .22in, .7in); as per EN ISO 12085: 1mm, 2mm, 4mm, 8mm, 12mm, 16mm
● Number of sampling lengths selectable from 1 to 5
● Automatic selection of filter and traversing length conforming to standards
● Phase-correct profile filter as per DIN EN ISO 11562
● Cutoff 0.25mm/0.80mm/2.50mm (.010in/.032in./100in)
● Short cutoff selectable
● Parameters as per DIN/ISO/SEP: Ra, Rz, Rmax, Rp, Rq, Rt, R3z, Rk, Rvk, Rpk, Mr1, Mr2, Mr, Sm, RPc, as per JIS: Ra, Rz, Ry, Sm, S, tp; Motif parameters: R, Rx, Ar, W, CR, CF, CL (three-zone measurement)
● Tolerance monitoring in display and measuring record
● Automatic or adjustable scaling
● Printing of R-profile (ISO/JIS), P-profile (MOTIF), material ratio curve, measuring record
● Output date and/or time of the measurements
● Integrated memory for the results of up to 200 measurements
● Dynamic pick-up calibration
● Blocking of instrument settings for preventing unintentional modifications plus possibility of password protection
Application Aids
Pick-ups for multiple measuring tasks for the use with PFM/PFM 2
The pick-ups of type N are characterized by special construction features:
*Stylus tip geometry as per EN ISO 3274, standard 2µm/90° (80 µin/90°)
*Measuring force of approximately 0.7mN (1.95 mozf) (as per EN ISO 3274)
*Reliable inductive converter
*Rugged, rigid housing
*Self-aligning, elastic bearings
*Reliable plus and socket connections
The standard NHT 6 pick-up
for example, adapts to various surface to be traced due to the special design of its tracing arm and skid. Further pick-ups such as the NHT 11 are suited for recessed measuring points and grooves.
NHTR-100 pickup
Order #6111508
Single-skid pick-up with lateral, spherical skid, radius 0.3 mm in traversing direction, stylus radius 5 µm (200 µin), 90° suitable to measure inner radii in circumferential direction with a diameter larger than 12 mm (.472") (without figure).
The NHTF 0.5 for gear tooth flanks
enables roughness measurements even at hardly accessible points.
NHT 6-100 pickup | Order # 6111501 |
| Type | single skid pick-up with spherical skid |
| Skid Radius | 25mm (.984 in) in traversing direction, 2.9mm (.114 in) at right angles |
| Contact Point | 0.8 mm (.0315in) in front of the stylus |
| Measuring range | 100µm (.00394 in) |
| Specification | for plane surfaces, bores with a dia. larger than 6mm, (.236 in) and a max. depth of 17 mm ).669 in), grooves with a width larger than 3 mm (.118 in): a width larger than 3 mm (.118 in): min. workpiece length + traversing length + 1 mm (.0394 in) |
NHT 6-150 pickup | Order # 6111504 |
Type | single skid up with spherical skid |
Skid Radius | 25mm (.984 in) in traversing direction, 2.9mm (.114 in) at right angles |
Contact Point | 0.8 mm (.0315 in) in front of stylus |
Measuring Range | 150 µm (.00591 in) |
| Specification | for plane surfaces, bores with a dia. larger than 6mm, (.236 in) and a max. depth of 17 mm ).669 in), grooves with a width larger than 3 mm (.118 in): a width larger than 3 mm (.118 in): min. workpiece length + traversing length + 1 mm (.0394 in) |
| NHT 11-100 pick-up | Order # 6111505 |
| Type | single-skid pickup with spherical skid |
| Skid radius | 25 mm (.984") in traversing direction, 2.9 mm (.114") at right angles |
| Contact point | 0.8 mm (.0315") in front of the stylus |
| Measuring range | 100 µm (.00394") |
| Specification | for plane surfaces, bores with a diameter larger than 11 mm (.433") and a max. depth of 14 mm (.551"), grooves with a width larger than 2.5 mm (.0984") and a max. depth of 7.5 mm (.295") |
NHT pick-up extension (80 mm/3.15"), Order # 6850530
(for pick-ups of the "N-series")
| NHT 3-100 pick up | Order # 6111502 |
| Type | Single skid pick-up with spherical skid |
| Skid radius | 25mm (.984 in) in traversing direction, 1.45mm (.0571 in) at right angles |
| Contact point | 0.9 mm (.0354in) in front of the stylus |
| Measuring range | 00 µm (.0039 in) |
| Specification | For bores with a diameter larger than 3 mm (.118 in) and a maximum depth of 17 mm (.669 in). Minimum workpeice length + traversing length + 1 mm (.0394 in) |
| NHTF 0.5-100 pick up | Order # 6111503 | ||||||||||||||
| Type | Single-skid pick-up with spherical skid | ||||||||||||||
| Skid radius | 25mm (.984 in) in traversing direction, 1.45 mm (.0571 in) at right angles | ||||||||||||||
| Contact point PFM 2 drive unit 
PFM 2 set Order # 6720909 consisting of: PFM drive unit VEE pick-up protection Pick-up protection Screwdriver Applications with PFM Drive Units
Accessories PP vee-block Order # 6710401 with four different prisms for mounting axis-symmetrical workpieces with diameters from 1 mm to 160 mm (.0394 in to 6.30 in). Dimensions (LxWxH) 100mm x 80mm x 40mm (3.91 in x 1.58 in). Weight 1.5 kg (3.31 lb.). Including clamping springs for holding light workpieces in the prism. XY table CT 120 Order # 6710529 for mounting and aligning workpieces. Can be adjusted in two coordinates by 15mm (.591 in). Table surface 120mm x 120mm (4728 in. x 4.728 in) with two brackets. PPS parallel vice Order # 6710604 for mounting rectangular and cylindrical workpieces. Jaw width 70mm (2.76 in), jaw height 25mm (.984 in), span 40mm (1.58 in), total height 58mm (2.28 in). Weight 2 kg (4.41 lb).
Shaft whippers for PFM 2 for diameters from 5mm to 80mm (100mm) (.197 in to 3.15 in/3.94 in) Order # 6850738 Roughness measurements on workpieces which are still being manufactured require particular device for solving the measuring task (e.g. transverse tracing on crankshaft or camshafts). Mahr or DKD calibration certificates are available on request.
PRN 10 roughness standard Order # 6820420 with Mahr calibration certificate. Roughness standard with turned profil, chromed. Profile depth approx. 10µm (.394µin). For checking the roughness measuring station.
PGN 3 geometric standard Order # 6820601 (w/o figure) Surface roughness standard with a sinusoidal froove profile. Profile depth approx. 3µm (120uin), groove spacing approx. 0.12mm (.00472 in). For checking the roughness measuring station.
The Perthometer Sets for Mobile Operation Perthometer M2 set Order # 6910135 Perthometer M2 set with 2008143 patch Order # 2190828 The Perthometers of the M series are delivered as a set in a handy carrying case. The instrument is thus safely packed for transport. The components included in the set can be easily and quickly be assembled to form a complete measuring station.
Rapp Industrial Sales * 127 Main Street * Connoquenessing, Pa 16027 Phone 888-789-7277 * 724-789-7853 * Fax 724-789-7288 Email: sales @rappindustrialsales.com
| 0.6 mm (.236 in) beside the stylus | ||||||||||||||
| Measuring range | 100 µm (.00394 in) | ||||||||||||||
| Specification | For gear tooth flanks with a modulus larger than 0.8. |
Pick-ups for Mobile Roughness Measuring Instruments
Drive Units for Mobile Roughness Measuring Instruments
PFM drive unit
The PFM drive unit can be connected to the Perthometers M1 and M2. It forms part of the Perthometer sets.
The drive unit can be used with the well-proved NHT skidded pick-ups.
For special measuring tasks, e.g. on crankshafts, the PFM 2 drive unit with traverse tracing is available. This is connected as the standard PFM drive unit. If both drive units are used, the range of applications of the mobile Perthometers M1 and M2 is considerably raised.
| PFM drive unit | Order # 6720907 |
| Traversing direction | longitudinal |
| Traversing lengths | set on the perthometer |
| as per DIN/ISO | 1.75 mm, 5.6mm, 17.5mm (.07in, .22 in, .7 in) |
| as per EN ISO | 1 mm, 2mm, 4mm, 8mm, 12mm, 16mm (.0394 in, .0787 in, .157 in, .315 in, .472 in, .63 in) |
| Traversing speed | 0.5mm/s (.0197 in/s) |
| Dimensions | dia. 24mm (.945 in) |
| (w/o pick-up protection) | L=112mm (4.41 in) |
Description
The operation of this instrument is based on the well-proved catalog of functions which enables instrument settings such as measuring conditions, language and record contents to be selected very easily. The Perthometer M2 thus offers a maximum of comfort and flexibility.
Compared with the Perthometer M1, this instrument not only meets the requirements for determination and documentation of selected parameters, but also makes most of the parameters and characteristic curves stipulated in DIN/ISO/JIS available for the evaluation of the profile assessed.
Moreover, the Perthometer M2 offers an integrated memory for the results of up to 200 measurements and enables, among other things, tolerance monitoring, vertical scale selection and the setting of unsymmetric intersection lines for peak count calculation.
Delivery as a set in a handy carrying case, Perthometer M2 set Order No. 6910135
Perthometer M2 set with 2008143 Roughness Master Order No. 2190828
PERTHOMETER M2. The Universal Standard Instrument ..
Highly mobile, high-performance surface roughness unit
