Rmp400 Basics; Introduction; Getting Started - Renishaw RMP400 Installation Manual

see Section 2, "RMP400 basics"

RMP400 basics

Introduction

The RMP400 offers an unrivalled combination
of size, accuracy, reliability and robustness
and, allows high-accuracy probing on small to
medium machining centres or other machines
where line-of-sight problems affect optical signal
transmission.
Successfully combining patented RENGAGE™
strain gauge technology with the patented
frequency hopping radio transmission system of
the RMP40, the RMP400 provides existing probe
users with a simple upgrade to solid-state strain
gauge technology and all the associated benefits
this brings:
•
excellent 3D performance to allow probing of
contoured surfaces;
•
improved repeatability in all probing directions;
•
a low triggering force combined with low pre-
travel variation to provide high accuracy, even
when used with long styli;
•
a proven ten-fold improvement in life (10 million
triggers); ????
•
the elimination of reseat failures;
•
high resistance to machine tool vibration;
•
resistance to shock and false triggering
through the use of solid state accelerometers.
In addition to providing high-accuracy
measurement on your machine tool, the RMP400
also offers:
•
Faster calibration:
On complex 3D parts, it is common to
measure in several different directions. Each
direction of a standard mechanical probe must
be calibrated, to ensure that the pre-travel
variation is compensated in the measurement.
Draft 5 16/04/18
Performing this calibration for every 3D
direction can be time-consuming.
The RMP400 has almost no pre-travel
variation, so a single calibration value may be
used for any probing angle in 2D or 3D. This
results in a vastly reduced calibration time. An
additional benefit is a corresponding reduction
in errors introduced by environmental changes
within the machine during a long calibration
cycle.
•
The ability to be used in applications
where axial and radial reorientations are
used, enabled by the use of solid state
accelerometers:
The auto-reset function is required and
recommendations should be followed for
optimum metrology performance.

Getting started

Three multicolour probe LEDs provide visual
indication of selected probe settings.
For example:
•
Switch-on and switch-off methods
•
Probe status – triggered or seated
•
Battery condition
Batteries are inserted or removed as shown (see
page 3.5, "Installing the batteries") for further
information).
On insertion of batteries, the LEDs will begin
to flash (see page 4.1, "Reviewing the probe
settings").
2.1