Strain gauge structure The OMP400 is an ultra compact probe, ideally suited to small to medium machining centres. It combines the miniaturisation of the highly successful OMP40 probe with new advances in strain gauge technology, pioneered by Renishaw's high accuracy MP700 probe.

Strain gauges attached to the structure measure the smallest of stylus motions, allowing for a very sensitive system.

The innovative RENGAGE™ technology built into the OMP400 brings unrivalled performance in terms of 3D measurement. Use OMP400 with Renishaw OMV for advanced on-machine verification when machining contoured surfaces and complex shapes.

OMP400 features and benefits

Patented RENGAGE™ technology brings unrivalled performance in terms of 3D measurement.
Increased stylus lengths can be supported without a significant decrease in probe performance
Compatible with all existing Renishaw receiver interfaces (modulated: OMI-2T and OMI-2C; legacy: OMI and OMM / MI12)
The OMP400 sets new standards for reliability and, sealed to IPX8, OMP400 is designed to resist the harshest machine conditions

OMP400 system options

OMP400 with OMI-2T		OMP400 with OMI-2		OMP400 with OMI		OMP400 with OMM / MI12
Offers twin probing option.		Offers a state-of-the-art modulated optical transmission method.		Ideal for factory fitment by machine tool builders.		Offers installation flexibility making it ideally suited for retro-fitting in the field.

OMP400 specification

Specification
Principal application	Small to medium machining centres and mould & die applications
Weight (without shank in g) with batteries without batteries	262 g (9.24 oz) 242 g (8.53 oz)
Sense directions	Omni-directional: ± X, ± Y, +Z
Uni-directional repeatability	0.25 µm (10 µin) 2 sigma – 50 mm stylus length* 0.35 µm (14 µin) 2 sigma – 100 mm stylus length
2D lobing in X, Y	± 0.25 µm (10 µin) 2 sigma – 50 mm stylus length* ± 0.25 µm (10 µin) 2 sigma – 100 mm stylus length
3D Lobing in X, Y, Z	± 1.00 µm (40 µin) 2 sigma – 50 mm stylus length* ± 1.75 µm (70 µin) 2 sigma – 100 mm stylus length
Trigger speed range	10 mm/min to 1 m/min
Stylus trigger force XY plane + Z direction	0.13 N, 13 gf (0.46 ozf) typical § 4.65 N, 474 gf (16.72 ozf) typical §
Stylus overtravel force XY plane +Z direction	1.8N, 183 gf (6.47 ozf) typical maximum 5.9N, 601 gf (21.2 ozf) typical minimum †
Stylus overtravel XY plane +Z direction	± 11° 6 mm (0.23 in)
Battery life - stand-by - 5% usage - continuous life	standard / low power mode One year 75 / 90 days 95 / 110 hours
Sealing	IP X8 (BS 5490, IEC 529) 1 atmosphere
Shanks	Various
Compatible interface	Legacy mode: OMI or OMM / MI12 Modulated mode: OMI-2 or OMI-2T

* Performance specification is for a test velocity of 240 mm/min (9.45 in/min) with a 50 mm carbon fibre stylus.

§ Performance specification is for a test velocity of 30 mm/min (1.18 in/min) with a 50 mm stylus. Test conducted in modulated mode with Auto-reset off, Filter on 8 ms selected.

† Stylus overtravel force in + Z direction occurs 7 to 8 µm after the trigger point and rises by 0.52 N/mm, 52 gf/mm (46.59 oz/in) until the machine tool stops.

OMP400 software options

The following software packages can be used to program probing routines for work piece set-up and inspection on CNC machining centres

EasyProbe - entry-level package for simple work piece set-up

Inspection - basic set-up and work piece inspection cycles, with automatic update of offsets

Inspection plus - an integrated suite of inspection cycles including vector measurement

Productivity+ Active Editor Pro - a PC-based software package with GUI, allowing the user to select features directly from an imported CAD model, making the generation of probing cycles even easier.

Renishaw OMV - A PC-based software package for verification of complex parts and live data capture to PC during probing for instant feedback on component quality.

OMP400 ordering information

Please contact your local Renishaw office to help design the OMP400 system most suited for your application.

Next steps

Contact us online if you require more information or you have a pricing query, or alternatively you may like to speak directly to your local Renishaw office.