All information set forth in this document, all rights to such information, any and all inventions disclosed
herein and any patents that might be granted by employing the materials, methods, techniques or apparatus
described herein are the exclusive property of Metronics Inc., Bedford, New Hampshire.
Terms, conditions and features referenced in this document are subject to change without notice.
No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by
any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of Metronics, Inc.. Requests to Metronics, Inc. for permission should be addressed to the Technical
Services Department, Metronics, Inc., 30 Harvey Road, Bedford, New Hampshire 03110.
Limit of liability and disclaimer of warranty
While this guide was prepared with great care, Metronics makes no representations or warranties with
respect to the accuracy or completeness of the contents of this book and specifically disclaims any implied
warranties of merchantability or fitness for a particular purpose. The advice, methods and instructions
contained in this book might not be suitable for your situation. When in doubt regarding suitability, you
are encouraged to consult with a professional where appropriate. Metronics shall not be liable for any loss
of profit or any damages, including but not limited to special, incidental, consequential or other damages.
Trademarks
Metronics, Quadra-Chek and QC-330 are registered trademarks of Metronics, Inc. and its subsidiaries in
the United States and other countries. Other product names used in this document are for identification
purposes only and may be trademarks of their respective owners. Metronics Incorporated disclaims any
and all rights to those marks.
Conventions & Terms
QC-330 refers to any of the QC-330 series of instruments. System refers to the QC-330 and the measuring
devices connected to it.
Icons
This guide uses the following icons to highlight information:
WARNINGS
The raised hand icon warns of a situation or condition that can lead to personal injury
or death. Do not proceed until the warning is read and thoroughly understood.
DANGEROUS VOLTAGE
The lightning icon warns of the presence of a dangerous voltage within the product enclosure that might be of sufficient magnitude to cause serious shocks or death. Do not
open the enclosure unless you are a qualified service person approved by Metronics,
Inc., and never open the enclosure while power is connected.
CAUTIONS & IMPORTANT INFORMATION
The exclamation point icon indicates important information regarding equipment
operation or maintenance, or a situation or condition that can lead to equipment malfunction or damage. Do not proceed until the information is read and thoroughly
understood.
NOTE
The note icon indicates additional or supplementary information about an activity or
concept.
Safety & Maintenance Considerations
General safety precautions must be followed when operating the system. Failure to observe these precautions could result in damage to the equipment, or injury to personnel.
It is understood that safety rules within individual companies vary. If a conflict exists between the material
contained in this guide and the rules of a company using this system, the more stringent rules should take
precedence.
Additional safety information is included on the next page and in Chapter 2: Installation.
WARNINGS
Disconnect the QC-330 from power before cleaning.
The QC-330 is equipped with a 3-wire power plug that includes a separate ground
connection. Always connect the power plug to a 3-wire grounded outlet. The use of
accessories that remove the third grounded connection such as a 2-wire power plug adapter create
a safety hazard and should not be permitted. If a 3-wire grounded outlet is not available, ask your
electrician to provide one.
DANGEROUS VOLTAGE
Do not open the enclosure unless you are a qualified service person approved by
Metronics, Inc., and never open the enclosure while power is connected. There are no
user-serviceable components or assemblies inside. Refer servicing to qualified service
personnel.
General Maintenance
Disconnect the QC-330 from power and seek the assistance of a qualified service technician if:
• The power cord is frayed or damaged or the power plug is damaged
• Liquid is spilled or splashed onto the enclosure
• The QC-330 has been dropped or the exterior has been damaged
• The QC-330 exhibits degraded performance or indicates a need for service some other way
Cleaning the enclosure
Use only a cloth dampened with water and a mild detergent for cleaning the exterior surfaces. Never use
abrasive cleaners, and never use strong detergents or solvents. Only dampen the cloth, do not use a cleaning
cloth that is dripping wet. Instructions for cleaning the touch screen are different and are given below.
Cleaning the touch screen
The touch screen should be cleaned as described below to prevent scratching or wearing the screen surface
and to prevent liquids from leaking into the enclosure.
Use only a soft, lint-free cloth dampened with water for cleaning the touch screen. Never use abrasive
cloths or paper towels. Never use abrasive cleaners, and never use detergents or solvents. Only dampen
the cloth, do not use a cleaning cloth that is dripping wet. Never spray the screen.
If the screen is badly soiled, the cloth can be dampened with a 50:50 mixture of isopropyl alcohol and
water. Remember, only dampen the cloth, do not use a cleaning cloth that is dripping wet, and never spray
the screen.
Contents
Chapter 1 Overview
Overview of the QC-330 features and functions ...............................1
Chapter 2 Installation
Unpacking the QC-330 ......................................................................5
Assembling the mounting stand .........................................................6
The Quadra-Chek 330 series is a family of
advanced digital readout systems for performing 2, 3 and 4 axis measurements at
very high levels of precision and accuracy.
Dimensional inspection of components can
be made using CMM touch probe systems as
part of in-line production activities or final
quality inspection.
Feature points are entered using fixed, indexing or friction touch probes. Feature type can
automatically be determined by the system
using Measure Magic technology. Level and
skew compensation can be performed on mis-
aligned parts prior to measurements to eliminate
the need for time-consuming fixturing.
1
Overview
The intuitive interface will be familiar to users of the QC-200 and other Metronics digital readouts. Operators will find the QC-330 easy to understand and use thanks to the large color touch screen LCD display.
The color LCD displays alphanumeric and graphic information for the current measurement, part features
and measurement data clearly on one screen, eliminating the need to page or scroll or navigate for information.
Touch screen controls select the feature to be measured, change operating and display modes, zero axes,
and configure setup parameters. Touch screen controls change to support measurement-specific functions
displayed on the LCD screen.
Front panel keys enter numeric data, turn the LCD on or off and send data to a printer or computer. Two
wide keys located over the LCD can quickly be pressed without looking at the front panel to initiate
frequently used functions programmed by the user. All front panel keys provide tactile sensory feedback,
and key-press operations can be configured to generate an audible sound.
2
QC-300 Series User’s Guide
Wide keys
Print/Send data
Touch screen
controls
Numeric keypad
Command keys
Color touch
screen
LCD ON/OFF
Speaker and external speaker jack outputs are provided that can be adjusted for quiet or noisy environments. Ear phones can be plugged into the external speaker jack to facilitate silent operation in quiet
environments.
Sequences of key-presses and touch probe contacts used to perform measurements can be recorded and
stored as programs. These programs can be replayed later to perform complete measurement sequences.
Sequences can be as simple as measuring a line, or can be expanded to include skew adjustment, datuming,
the measurement of multiple features, tolerancing and printing reports of measurement results.
Measurement results can be saved to a USB flash drive, transmitted to a PC over the RS-232 port or printed
on a USB printer.
Description of QC-330 Features
External footswitch
3
1
Overview
Touch probe
input
Encoder inputs
The compact ergonomic design and adjustable-tilt front panel of the QC-330 allow users to locate and
mount the instrument in a wide variety of environments that accommodate nearly any viewing requirement. The tilt front panel can be adjusted and secured in any convenient position. Rubber feet on the
bottom prevent slipping when the system is not permanently bolted to a work surface using the bolt holes
provided in the bottom of the mounting stand.
Speaker jack
USB ports
RS-232 port
Tilt adjust
Jacks are provided for an optional foot switch or hand switch. All the optional accessories for the QC-330
are shown in detail at the rear of this guide in Chapter 13: Options.
4
QC-300 Series User’s Guide
Chapter 2:
Installation
The QC-330 is easy to install in a variety of basic and advanced measurement applications. This chapter
describes how to unpack and install the QC-330. Repackaging instructions are also included for return
shipments and for distributors and OEM customers that are configuring a QC-330 and shipping it to an
end-user.
Unpacking the QC-330
Carefully remove the contents of the shipping carton.
NOTE
Save the carton and packaging materials in case future return shipment becomes
necessary.
5
2
Installation
Inspect the components listed below for shipping damage. The contents of the carton includes:
• QC-330 instrument • Mounting stand and hardware
• Power cord • Warranty registration card
Shipments of other optional equipment in separate cartons might include:
• RS-232 serial cable • QC-Wedge software
• Foot switch or hand switch
If any components were damaged in shipment, save the packaging materials for inspection and contact
your shipping agent for mediation. Contact your Metronics distributor for replacement parts.
6
QC-300 Series User’s Guide
Assembling the mounting stand
The QC-330 is secured to the swivel slots of the mounting stand by a shoulder
screw, a cap screw and associated washers.
Assemble the QC-330 to the mounting stand as shown.
Tighten the shoulder screw (1), and then tighten the cap
screw (5) and washers (3 & 4) so that the QC-330 will
be secure when adjusted to the desired tilt position.
Safety considerations
The QC-330 is completely enclosed and no hazardous outputs can come in contact with the user. Safety considerations
are related to power connections and physical mounting.
WARNING
If the QC-330 falls from its mounting location, serious personal injury or damage to
the equipment can result.
Power cord and plug
Do not locate the power cord where it can be walked on or will create a tripping hazard. Connect the 3-wire
power plug to only a 3-wire grounded outlet. Never connect 2-wire to 3-wire adapters to the power cord
or remove the third ground wire to fit the plug into a 2-wire electrical outlet. Modifying or overriding the
third-wire ground creates a safety hazard and should not be permitted.
DANGEROUS VOLTAGE
Always disconnect the power cord from the source of AC power before unplugging
it from the QC-330 power connector. The AC voltage available at electrical outlets is
extremely dangerous and can cause serious injury or death.
Electrical wiring and connections
Perform regular inspections of all connections to the QC-330. Keep connections clean and tight. Locate
cables away from moving objects. Do not create tripping hazards with power cords, input/output cables or
other electrical wiring.
Use shielded cables to connect to the serial RS-232 port. Make certain that cables are properly terminated
and firmly connected on both ends.
Safety and Power
Location and mounting
Rest the QC-330 on a flat, stable surface,
or bolt it to a stable surface from the bottom using four 10/32 screws fastened in
the pattern shown at the right.
Power surge suppressor
Connect the QC-330 to power through a high-quality power surge suppressor. Surge suppressors limit the
amplitude of potentially damaging power line transients caused by electrical machinery or lightning. When
a surge suppressor is not used, power line transients can corrupt system memory or damage circuits.
7
2
Installation
Connecting axis encoders
Axis encoders are attached to interface connectors on
the rear of the QC-330. Many encoder interfaces are
available to match the wide variety of encoders that
can be used with the QC-330. The type of axis encoder
connectors will vary depending on the application. En-
coder inputs are specified as analog or TTLat the time
of purchase and cannot be changed in
the field.
X, Y, Z and Q axis
1 Verify that the QC-330 is off.
2 Connect the axis encoders tightly
to their connectors. An axis label is provided near each connector. Do not overtighten
the connector screws.
Encoder input parameters must be configured later using the Encoder setup screen. Please refer to Chapter
10: Setup for details regarding encoder setup.
input connectors
8
QC-300 Series User’s Guide
Connecting the touch probe input
The fixed or manually indexed touch probe is connected to the
Renishaw® connector on the rear of the QC-330.
1 Verify that the QC-330 is off.
2 Connect the touch probe to the Renishaw connector on the
rear panel.
Touch probe
connector
Connecting a printer
The QC-330 supports certain USB printers. Printer models
should be specified by Metronics when the QC-330is ordered,
or approved by Metronics later.
1 Verify that the QC-330 and printer power areoff. Connect
the USB printer to the USB Type A port on the side of the enclo-
sure.
2 Make sure the USB cable plug is fully inserted.
USB printer
port
Connections
Connecting a computer
1 Verify that the QC-330 and computer power are off.
2 Connect a computer COM port to the QC-330RS-232 se-
rial port using a standard straight-through serial cable (Metronics
part number 11B12176). Make sure the cable connectors are
tight, but do not overtighten the connector screws.
3 Apply power to the computer, and then the QC-330. The de-
fault QC-330 settings for communication over theRS-232
serial port are shown here.
• Baud rate: 1200
• Parity: None
• Data bits: 7
• Stop bits: 1
• Flow control: Hardware
4 Launch the computer application that will be used to communicate with the QC-330, and configure the
communication properties of the COM port to match those of the QC-330.
RS-232 serial port
connector
9
2
Installation
Connecting an optional footswitch
The optional foot switch is connected to the RJ-45connector
on the rear of the QC-330.
1 Verify that the QC-330 is off.
2 Connect the foot switch to the RJ-45 connectoron the rear
connector panel.
Footswitch connector
10
QC-300 Series User’s Guide
Warranty registration form
The warranty registration form included in
the shipping carton should be completed and
mailed as soon as possible. Also record the
purchase and warranty information here so
that it will be readily available later to support
any necessary interactions with distributor or
factory technical support personnel.
The software version can be found in the
Hardware setup screen. Refer to Chapter 10: Setup for screen descriptions.
Repackaging for shipment
Repackage the QC-330 in the original packaging as received from the factory, or equivalent. It is not
necessary to ship the base when shipping the QC-330 for repair.
CAUTION
The original packaging must be duplicated and the LCD must be inserted face-up to
prevent damage to the LCD screen.
Pay special attention to the following instructions:
1 Connect any loose mounting hardware to the QC-330 instrument
2 Repackage the foam and cardboard carton inserts as originally shipped from the factory.
3 Place the QC-330 into shipping carton with the LCD facing up.
4 Replace the warranty card and slip sheets found at the top of the carton. The “Before you begin” slip
sheet should be inserted last.
What’s next?
Proceed to Chapter 10: Setup to configure your QC-330 for use. Follow the instructions for Minimum Setup
requirements.
Chapter 3:
User Interface
The QC-330 user interface consists of hardware front panel buttons and number keys that work in cooperation with software menus, buttons, and data fields shown on the color LCD touch screen. The hardware/
software interface is divided into the function areas listed and shown below.
• Screen functions • Command buttons and wide keys
• Data display • Number keys
• Measurement functions • LCD ON/OFF or delete features
• Feature list • Printing reports and sending data
• System functions
Screen functions
Wide keys
System functions
Printing reports
and sending data
11
3
User Interface
Feature
list
Number
keys
Data
display
Command
buttons
Measure functions
LCD ON/OFF
and delete features
12
QC-300 Series User’s Guide
LCD Screen functions
The LCD functions are used to select screens that support operator
activities.
Touch a button to select the desired screen.
• DRO Displays the digital readout
• VIEW Displays the selected feature’s data cloud and physical geometry
• TOL Displays the tolerance screens for entering and editing tolerances
DRO screenVIEW screenTOL screen
LCD Screen Functions
Data display
Data is displayed on the DRO, View and Tol screens.
DRO screen
Press the DRO button to display the DRO screen. Measurement data,
reference frame, projection, part alignment controls and part datum
controls are shown on the DRO screen.
Part datum
controls
13
3
User Interface
Feature data:
minor coefcients
Data points
Projection
Feature data:
major coefcients
Reference frame ID
Part alignment control
14
QC-300 Series User’s Guide
View screen
Press the VIEW button to display the VIEW screen. Measurement
data, reference frame, projection and an image of the data cloud and
resulting feature geometry are shown on the View screen.
Data cloud and
feature geometry
Feature data:
major coefcients
Feature data:
minor coefcients
Data points
Projection
Reference frame ID
The view of the feature geometry is rotated by touching center or corner points at the edge of the image or
by touching and dragging across the screen.
LCD Screen Functions
TOL screen
Press the TOL button to display the Tolerance screen. Tolerance data,
tolerance type selections and tolerance specification fields are shown
on the TOL screen.
15
Specication
of nominal
values
Tolerance
type
Measurement
results
Tolerance type selection controls
3
User Interface
Tolerance
specications
16
QC-300 Series User’s Guide
Measurement functions
The measurement functions are divided into three tabbed areas:
• Measure Select a measurement type, such as circle, line or sphere
• Program Record, edit or play back a program of measurement steps
• Extra Send data to the RS-232 port
Selecting a measurement type
Measurement types are selected from the Measure tab. Touch the Measure tab repeatedly to display icons
in the measure tab for the different 2D and 3D measurement types.
Touch the Measure tab to display
measurement types...
Touch a measure icon to select the desired measurement type. In some cases, such as when selecting
circles and slots, related measurement types will also be presented as shown in this example of touching
the circle icon to display the arc measure type.
Touching the circle measure icon...displays circle and arc measurement types
NOTE
Details regarding performing measurements and the use of measurement tools are
provided in Chapter 6: Measuring.
then touch the Measure tab repeatedly to alternately display 2D and 3D
measurement types
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