RJG 211M18 Manuel utilisateur
PRODUCT MANUALPRODUCT MANUAL
Training and Technology for Injection Molding
P L W
S
211M18
PRINT DATE 01.27.2022
REVISION NO. 0
Product Manual | Piezoelectric Load Washer Sensor 211M18 i
PRODUCT MANUAL
P L W
S
211M18
INTRODUCTION
DISCLAIMER V
PRIVACY V
ALERTS V
PRODUCT DESCRIPTION
APPLICATIONS 1
EJECTOR SLEEVES AND CORES 1
SINGLECHANNEL 1
MULTICHANNEL 1
OPERATION 2
LOAD WASHER SENSORS 2
PIEZOELECTRIC SENSORS 2
DIMENSIONS 3
SENSOR 3
CABLE LENGTHS 3
Piezoelectric Load Washer Sensor 211M18 | Product Manual
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INSTALLATION
INSTALLATION OVERVIEW 5
INSTALLATION SPECIFICATIONS 6
SENSOR POCKET 7
EJECTOR SLEEVE POCKET 7
EJECTOR SLEEVE COUNTERBORE OPTIONAL 7
CABLE CHANNEL 8
ALTERNATE INSTALLATION OVERVIEW 9
ALTERNATE INSTALLATION SPECIFICATIONS 10
SENSOR AND SPACER POCKET 11
SPACER 11
EJECTOR SLEEVE AND CORE PIN POCKETS 11
CABLE CHANNEL 12
SENSOR CABLE RETENTION 13
SENSOR INSTALLATION CHECK 15
PREASSEMBLY CHECKS 15
POSTASSEMBLY CHECK 15
PRODUCT MANUAL
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211M18
Product Manual | Piezoelectric Load Washer Sensor 211M18 iii
MAINTENANCE
CLEANING & DRIFT 17
REGULAR CLEANING 17
DRIFT 17
TESTING & CALIBRATION 17
SENSOR TESTING 17
WARRANTY 18
RJG, INC. STANDARD THREEYEAR WARRANTY 18
PRODUCT DISCLAIMER 18
TROUBLESHOOTING
INSTALLATION ERRORS 19
LOADING SURFACE ISSUES 19
CABLE AND CASE ISSUES 20
CABLES 20
SENSOR ADAPTER CASES 20
COMMON ERRORS 21
SLOW SENSOR DRIFT READING 22
FAST SENSOR DRIFT/INVALID READING 23
SENSOR DOES NOT COMMUNICATE WITH EDART 24
CUSTOMER SUPPORT 25
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RELATED PRODUCTS
COMPATIBLE PRODUCTS 27
SINGLECHANNEL LYNX LOAD WASHER SENSOR CABLE CLW003C10F27
MULTICHANNEL LYNX LOAD WASHER SENSOR CABLE
CLW003C10A 27
LYNX CABLES CELX5 27
LYNX SINGLECHANNEL MOLD MOUNT SENSOR ADAPTER LP/LX1M 28
LYNX SINGLECHANNEL SURFACE MOUNT SENSOR ADAPTER PZ/LX1S28
PZ4 & PZ/LX4FS 28
PZ8 & PZ/LX8FS 28
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Product Manual | Piezoelectric Load Washer Sensor 211M18 v
INTRODUCTION
Read, understand, and comply with all
following instructions. This guide must be
kept available for reference at all times.
DISCLAIMER
Inasmuch as RJG, Inc. has no control
over the use to which others may put
this material, it does not guarantee that
the same results as those described
herein will be obtained. Nor does RJG,
Inc. guarantee the effectiveness or safety
of any possible or suggested design
for articles of manufacture as illustrated
herein by any photographs, technical
drawings, and the like. Each user of the
material or design or both should make
his own tests to determine the suitability
of the material or any material for the
design as well as the suitability of the
material, process, and/or design for his
own particular use. Statements concerning
possible or suggested uses of the material
or designs described herein are not to be
construed as constituting a license under
any RJG, Inc. patent covering such use
or as recommendations for use of such
material or designs in the infringement of
any patent.
PRIVACY
Designed and developed by RJG, Inc.
Manual design, format and structure
copyright 2022 RJG, Inc. content
documentation copyright 2022 RJG, Inc. All
rights reserved. Material contained herein
may not be copied by hand, mechanical, or
electronic means, either whole or in part,
without the express written consent of RJG,
Inc. Permission will normally be granted for
use in conjunction with inter‑company use
not in conflict with RJG’s best interests.
ALERTS
The following three alert types are used
as needed to further clarify or highlight
information presented in the manual:
DEFINITIONA definition or clarification of a
term or terms used in the text.
NOTESLA note provides additional
information about a discussion
topic.
CAUTIONaA caution is used to make the
operator aware of conditions that
can cause damage to equipment
and/or injury to personnel.
Piezoelectric Load Washer Sensor 211M18 | Product Manual
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NOTES
Product Manual | Piezoelectric Load Washer Sensor 211M18 1
PRODUCT DESCRIPTION
The 211M18 load washer sensor from
RJG, Inc. is a digital piezoelectric sensor
that measures cavity pressure on ejector
sleeves. The core pin extends through the
load washer so that only pressure from the
ejector sleeve is monitored.
The piezoelectric load washer sensor is
designed for use with the RJG eDART® or
CoPilot® process control and monitoring
systems. The 211M18 boasts a 5,000 lb.
(22,24 kN) capacity and a sensitivity rating
of 4,047 pC/kN.
APPLICATIONS
EJECTOR SLEEVES AND CORES
Load washers enable the use of cavity
pressure sensors in ejector sleeve and
core applications. The load washer
sensor is suitable for injection molding
applications in which the following
conditions are met:
• Applied pressure is high enough to
prevent poor sensor resolution, but low
enough to prevent sensor damage.
• Sensor will be kept below 400 °F (204
°C) in the mold; sensor electronics will be
kept below 140 °F (60 °C).
• The ejector sleeve will contact at least
80% of the sensor loading surface.
SINGLECHANNEL
The 211M18 can be utilized in
single‑channel applications in conjunction
with the Lynx™ Mold‑Mount Piezoelectric
Sensor Adapter
LP/LX1‑M and the eDART system.
MULTICHANNEL
The 211M18 can be utilized in multi‑channel
applications which enable either four or
eight sensors to be connected outside
the mold with a single cable. The Lynx
Four‑Channel Piezoelectric Sensor
Connector and Adapter—PZ‑4 and PZ/
LX4F‑S‑ID—allow up to four sensor
connections, while the Lynx Eight‑Channel
Piezoelectric Sensor Connector and
Adapter—PZ‑8 and PZ/LX8F‑S‑ID—allow up
to eight sensor connections to the eDART
system.
Piezoelectric Load Washer Sensor 211M18 | Product Manual
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OPERATION
LOAD WASHER SENSORS
The piezoelectric load washer sensor is
placed in the ejector retainer plate behind
the ejector sleeve. The ejector sleeve
core pin extends through the sensor and
sleeve. When the mold clamps and plastic
is injected, pressure is transferred from
the ejector sleeve onto the load washer.
The load washer measures the force, and
calculates the pressure based on the scale.
The accuracy of the sensor is dependent
upon the scale. The sensor is programmed
for 125 or 500 lb. as full scale, depending
upon sensor ordered. The eDART
computes a scale factor based on the
full scale value while pressure is being
applied.
PIEZOELECTRIC SENSORS
Piezoelectric sensors use quartz crystals
to measure the deformation, or change in
resistance of the force over the sensor. The
measurement is carried through the sensor
cable to a sensor adapter mounted on the
outside of the mold.
Piezoelectric quartz crystals contain
balanced negative and positive electrical
charges which are not symmetrically
arranged. When force is applied to the
piezoelectric crystal, the positive and
negative atoms are deformed, pushing
some of the atoms closer or further apart
and causing electrical charges to occur.
The sensor adapter is connected to
the RJG, Inc. eDART or CoPilot system,
which records and displays the sensor’s
measurement for operator aid in process
monitoring and control.
OUTPUT
PRESSURE
PRESSURE
PIEZOELECTRIC SENSOR OPERATING PRINCIPLE
EXCITATION
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