Ametek Solartron Metrology Digital Mini Probe Manual

1
Manual Part No. 502923 Issue 3
user leaet
DIGITAL MINI PROBE

1.0: Index
Section Title Page
1.0 Index ...............................2
2.0 Safety Summary ......................3
3.0 Introduction ..........................4
4.0 Components of the Mini Probe ...........5
5.0 Mechanical Installation . . . . . . . . . . . . . . . . .6
5.1 Positioning ..........................6
5.2 Mounting ............................6
5.3 Cable ..............................7
5.5 Tip Adjustment .......................8
5.6 Tip Replacement......................8
6.0 PIE / Probe Connections ...............9
6.1 PIE / Probe Connections ...............9
6.2 Grounding / Shielding .................10
Section Title Page
7.0 Specifications...............................................11
8.0 Outline Drawings......................................... 12
8.1 Outline Drawings - DM/05/S ....................... 12
8.2 Outline Drawings - DM/1/S ......................... 13
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1.0: Index 2
Manual Part No. 502923 Issue 3

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Manual Part No. 502923 Issue 3
2.0: Safety Summary
Terms in this Manual
WARNING statements identify conditions
or practices that could result in personal
injury or loss of life.
CAUTION statements identify conditions
or practices that could result in damage to
the equipment or other property.
Symbols in this manual
This symbol indicates where
applicable cautionary or other
information is to be found.
WARNINGS:
Do not operate in an explosive atmosphere
To avoid explosion, do not operate this equipment
in an explosive atmosphere. This equipment is not
intended for use in a safety critical environment.
NOTES:
This equipment contains no user serviceable parts
This equipment must be returned to your original
supplier for all servicing and repair.
Low Voltage
This equipment operates at below the SELV and is
therefore outside the scope of the Low Voltage
Directive.
2.0: Safety Summary

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Manual Part No. 502923 Issue 3
The Mini Probe is a compact, low profile, transducer
intended for measurements in confined spaces.
The product is based on a parallel spring structure
that is significantly more robust than a single leaf
arrangement. This greatly improves the reliability of
the sensor, extending its working life and allowing it
to be used in more demanding applications, such as
automatic gauges. The parallel spring also insures
a high level of repeatability, both on axis and across
axis, so that it can be used in dynamic applications
where profiling is required.
The Digital version of the Mini Probe, along with
other digital products, can be connected to a PC or
PLC via the Orbit Network system, or directly to a
digital readout.
CAUTION
The Mini Probe needs to be treated
carefully, as with any precision instru-
ment, to avoid damage during instal-
lation - please see section 5 of this
manual.
3.0: Introduction
3.0: Introduction

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Manual Part No. 502923 Issue 3
4.0: Components of the Mini Probe
4.0: Components of the Mini Probe
Location of M3 Mounting Screw
Adjustable Tip
Fluoroelastomer Boot Mounting Face

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Manual Part No. 502923 Issue 3
5.0: Mechanical Installation
5.0: Mechanical Installation
5.1: Positioning
The Mini Probe is susceptible to some degree to the
inuence of magnetic elds and should therefore be
positioned well away from electric motors, relays and
permanent magnets.
5.2: Mounting
The centreline of the Mini Probe is accurately aligned to
one side of the transducer to provide a reference datum
face. Similarly, the rear face and base mounting face of the
Mini Probe can be used as a datum. These datum faces
are shown on the Mechanical drawing in section 8
Installation is simply a matter of positioning the device,
and securing it via a single M3 screw (supplied with the
Mini Probe).The probe head may be mounted in any
orientation..
To ease installation, the Mini Probe head can be
disconnected from the PIE. It is important that
the PIE with the correct ident is used with the
corresponding Mini Probe head.
To maximise service life and to minimise the potential
for accidental damage the following points need to
be considered:-
• Set probe height to minimise the amount of
deection of the tip making due allowance for
pre-travel and component tolerance, this is
particularly relevant where the tip is subject to
side load. Long reach tips are available, but
should advisedly only be used when contact is
normal to the tip.
• Where possible it can be considered good
practice to effectively shroud the probe leaving
only the relevant part of the tip protruding
beyond the protected zone, this will minimise the
possibility of probe breakage due to misplaced
components.

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Manual Part No. 502923 Issue 3
5.0: Mechanical Installation
5.0: Mechanical Installation
5.3: Cable
To minimise transducer failure due to cable damage, cable runs should be positioned well clear of moving components
and vulnerable working areas.
If the PUR cable is in a ex situation, then a minimum bend radius of 150 mm should be maintained.
A minimum bend radius of 1 mm is recommended for the wires coming out of the probe head. These wires should not
be subjected to regular bending.
If a cable is damaged, it is not possible to repair it without affecting the probe calibration. The complete assembly (Mini
Probe and PIE) must be replaced.
WARNING
When mounting the Mini Probe in a xture, care must be taken as the probe can be damaged by the
application of twisting forces.

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Manual Part No. 502923 Issue 3
5.0: Mechanical Installation
5.0: Mechanical Installation
5.4: Tip Adjustment
The Mini Probe Tip height can be adjusted over a
0.5 mm range (± 0.25 mm from the factory set position
-approximately ±½ turn).
To adjust tip
1) Firmly hold the Mini Probe frame as shown, so that it is
not stressed during the tip adjustment
2) Using the spanner supplied, turn the tip until the
required tip extension is achieved..
5.5: Tip Replacement
To remove tip
1) Firmly hold the Mini Probe frame, so that it is not
stressed during the tip removal.
2) Using the spanner supplied, unscrew the tip from
the Mini Probe.
To install tip
1) Firmly hold the Mini Probe frame, so that it is not
stressed during the tip installation.
2) Using the spanner supplied, screw the
replacement tip into the Mini Probe until the required
tip extension is achieved. The tip is self-locking, so a
tightening torque is not applicable. Do not tighten the
tip against the stop.
CAUTION
In order to avoid damage to the probe, it is critical that the Mini Probe is held rmly whilst the tip is being
adjusted. Failure to do so will stress the assembly and may damage the structure beyond repair.

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Manual Part No. 502923 Issue 3
6.0: PIE / Probe Connections
6.0: PIE / Probe Connections
6.1: PIE / Probe Connections
To aid installation, the probe and PIE may be separated.
Two connection styles are used. In order to maintain the
calibration, it is important the PIE and probe head identities
match. Labels are provided on cables to ensure the PIE
can be matched with the corresponding probe head.
Pin to Pin Connection
Pull the in-line connections apart (handling the end of the
connector only) and, at the same time, carefully slide back
the sleeve to aid removal.
To reconnect, push the pin and socket together, feeling for
the pin and socket making contact before nally pushing
them together.
Alternatively, slide the sleeve back to expose the
connector. Push the pin and socket together and
then slide the sleeve back into position
.
Gently pull the ends of the sleeve to stretch it slightly.
This puts a little tension into the sleeve and helps to
pull the connector pins together.
When the probe is installed, ensure that the wires
are not under tension. The connection method does
not provide a positive locking. It is recommended that
wires and cables are clamped or restrained in order
to prevent the connectors being put under tension.
hold end of connector only
pull back sleeve from here
Ensure connectors are mating
before pushing together

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Manual Part No. 502923 Issue 3
6.0: PIE / Probe Connections
6.0: PIE / Probe Connections
6.1: PIE / Probe Connections (continued)
M5 Circular Connector
To separate the probe and PIE, hold the probe
connector and turn the locking ring only. When the
locking ring is fully unscrewed the connector halves
may be separated. Excessive cable twist may cause
damage.
6.2: Grounding / Shielding
Pin to Pin Connection
It is recommended that the spade terminal be connected
to the same metal work as the transducer. When multiple
Mini Probes are being used, only one connection may
be required. For installations where the PIE module and
the probe are mounted close to each other on common
metalwork, this extra connection may not be required.
The unshielded wires from the transducer should remain
loosely twisted and be contained within (or remain in close
proximity to) the metalwork.
These precautions will greatly improve the grounding /
shielding aspects of the installation.
M5 Circular Connector
No additional screening precautions are required. The
cable screens are continuous through the connector.
For additional advice regarding grounding and shielding,
contact your original supplier.
Probe Connector PIE Connector
Locking Ring