RJG SG-8 User manual

PRODUCT MANUALPRODUCT MANUAL
Training and Technology for Injection Molding
E-C S G
S P  ID
SG‑8

PRINT DATE 06.02.2022
REVISION NO. 0

Product Manual | Eight-Channel Strain Gage Sensor Plate with ID SG-8 i
PRODUCT MANUAL
E-C S G S P
 ID
SG‑8
INTRODUCTION
DISCLAIMER III
PRIVACY III
ALERTS III
PRODUCT DESCRIPTION
APPLICATIONS 1
MULTICHANNEL STRAIN GAGE SENSOR SYSTEM 1
BUTTONSTYLE SENSORS 1
OPERATION 2
INDIRECT/UNDERPIN SENSORS 2
STRAIN GAGE SENSORS 2
DIMENSIONS 3
CABLE LENGTHS 3
COMPATIBLE CABLES 3
INSTALLATION
INSTALLATION OVERVIEW 5
CLAMP PLATE INSTALLATIONS 5
EJECTOR PLATE INSTALLATIONS 6
INSTALLATION SPECIFICATIONS 7
CLAMP PLATE INSTALLATIONS 7
EJECTOR PLATE INSTALLATIONS 10
SENSOR CONNECTOR SUPPORT WALL 13
EXCESS CABLE POCKET 13

Eight‑Channel Strain Gage Sensor Plate with ID SG‑8 | Product Manual
ii
INSTALLATION CONTINUED
MOUNTING 14
HIGHTEMPERATURE SENSOR MCSGB12750/125/500/2000H PLATE
INSTALLATION 15
MAINTENANCE
CLEANING 17
REGULAR CLEANING 17
TESTING & CALIBRATION 17
SENSOR TESTING 17
WARRANTY 18
RJG, INC. STANDARD WARRANTY 18
PRODUCT DISCLAIMER 18
TROUBLESHOOTING
COMMON ERRORS 19
INTERMITTENT CONNECTIONS 19
TROUBLESHOOTING SOFTWARE FOR INTERMITTENT
CONNECTIONS 19
SENSOR LOCATIONS MENU 19
RAW DATA VIEWER EDART TOOL 20
PRODUCT MANUAL
E-C S G S P
 ID
SG‑8

Product Manual | Eight-Channel Strain Gage Sensor Plate with ID SG-8 iii
TROUBLESHOOTING CONTINUED
TROUBLESHOOTING HARDWARE FOR INTERMITTENT
CONNECTIONS 21
CHECKING eDART SYSTEM LYNX PORTS AND FUSES FOR CONNECTION
ISSUES 21
CHECKING LYNX CABLES AND CONNECTIONS FOR CONNECTION ISSUES
22
INTERFERENCE 23
INTERFERENCE WITH MACHINE INTERFACE MODULES AND SENSORS 23
INTERFERENCE FROM MOLD SENSORS 24
CUSTOMER SUPPORT 25
RELATED PRODUCTS
COMPATIBLE PRODUCTS 27
CSG/LX8S0.5/1M/2M 27
LYNX STRAIN GAGE EIGHTCHANNEL ADAPTER WITH MOLD ID SG/LX8SID
27
LYNX MULTICHANNEL STRAIN GAGE BUTTON SENSORS
MCSGB12750/125/500/200 AND MCSGB1594000 27
SIMILAR PRODUCTS 28
LYNX EMBEDDED SENSORS 28
PIEZOELECTRIC FOURCHANNEL PZ4 & PZ/LX4FS 28
PIEZOELECTRIC EIGHTCHANNEL PZ8 & PZ/LX8FS 28
PRODUCT MANUAL
E-C S G S P
 ID
SG‑8

Eight‑Channel Strain Gage Sensor Plate with ID SG‑8 | Product Manual
iv
NOTES

Product Manual | Eight-Channel Strain Gage Sensor Plate with ID SG-8 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:
DEFINITIONA 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.

Eight‑Channel Strain Gage Sensor Plate with ID SG‑8 | Product Manual
vi
NOTES

Product Manual | Eight-Channel Strain Gage Sensor Plate with ID SG-8 1
PRODUCT DESCRIPTION
The eight‑channel strain gage sensor
plate with mold ID SG‑8 interfaces up to
eight multi‑channel strain gage (MCSG)
sensors with the RJG, Inc. eight‑channel
strain gage sensor adapter SG/LX8‑S‑ID
and the eDART® or CoPilot® systems. The
built‑in mold identification (ID) enables the
software to automatically identify the mold
for easy setup.
APPLICATIONS
MULTICHANNEL STRAIN GAGE SENSOR
SYSTEM
The Lynx™ MCSG sensor systems provide
quick, convenient connection between
multiple sensors in a mold to a single
sensor adapter outside of the mold and the
eDART system, saving real estate on the
mold and minimizing cabling.
BUTTONSTYLE SENSORS
Button‑style cavity pressure sensors are
suitable for injection molding applications
in which the following conditions are met:
• Sensors will be installed behind ejector,
blade, or core pins.
• Applied plastic is high enough to prevent
poor sensor resolution, but low enough to
prevent sensor damage.
• Only one point of contact (single pin) to
each sensor.
• Sensor will be kept below 250 °F
(120°C) for standard models or 425°F
(220°C) for high-temperature models
(MCSG-B-127-XXXX-H) in the mold;
sensor connectors will be kept below 185
°F (85°C).
CAUTIONaMCSG-B-127-XXXX model sensors
MUST be used only within the
recommended temperature
ranges; failure to comply will result
in the damage or destruction of
equipment.

Eight‑Channel Strain Gage Sensor Plate with ID SG‑8 | Product Manual
2
OPERATION
INDIRECT/UNDERPIN SENSORS
Each Lynx™ multi‑channel strain gage
sensor is placed in the mold behind an
ejector pin. As plastic is injected into
the cavity, the pressure of the plastic
applies force to the ejector pin; the plastic
pressure force is transfered to the strain
gage sensor.
STRAIN GAGE SENSORS
The strain gage sensing element inside the
sensor body converts the applied force to
an electrical signal that can read using the
eDART system or CoPilot system software.
The sensing element uses a Wheatstone
bridge configuration (four strain gage
elements positioned in a circuit) to convert
small amounts of sensor deformation into
a measurable voltage through the change
in resistance of the strain gage sensing
elements. The sensor sends out a low‑level
voltage signal which is proportional to the
amount of force applied by the pressure
placed on the pin and transferred to the
sensor.
The voltage or measurement is carried
through the sensor cable, through the
SG‑8 plate and C‑SG/LX8‑S‑ID cable, to
the SG/LX8‑S‑ID adapter electronics case
mounted outside of the mold. The output
voltage signal is calibrated by the sensor’s
electronics and directly correlates with
pressure from within the cavity.
EXCITATION
Gate 1
Gate 2
Gate 3
Gate 4
OUTPUT
STRAIN GAGE OPERATING PRINCIPLE
The SG/LX8‑S‑ID is connected to the
RJG, Inc. eDART system, which records
and displays the sensor’s measurement
for operator aid in process control. In
the eDART and CoPilot® software, the
sensor model is assigned to each channel
in order to provide correct calibration.
This configuration only needs to be
completed once, after which the software
automatically recalls the configuration each
time the SG‑8 plate is connected.

Product Manual | Eight-Channel Strain Gage Sensor Plate with ID SG-8 3
DIMENSIONS
CABLE LENGTHS
Length must be longer than needed to
facilitate safe installation and removal of
connector from tool to prevent tension on
the lead wire; generally, 2–3” (50–75mm)
of slack is sufficient. Use good sense to
determine the appropriate cable length
required for each application. Length is
specified at time of order.
COMPATIBLE CABLES
CABLE NO. LENGTH
C‑SG/LX8‑S‑0.5M 0.5 m
C‑SG/LX8‑S‑1M 1.0 m
C‑SG/LX8‑S‑2M 2.0 m
Sensor Plate to Sensor Adapter Cable
C‑SG/LX8‑S Length

Eight‑Channel Strain Gage Sensor Plate with ID SG‑8 | Product Manual
4
NOTES

Product Manual | Eight-Channel Strain Gage Sensor Plate with ID SG-8 5
INSTALLATION
INSTALLATION OVERVIEW
CLAMP PLATE INSTALLATIONS
A pocket is machined into the mold clamp
plate—in conjunction with sensor pockets
and cable channels—for the sensor plate
(refer to sensor product manuals for
sensor and cable installation). The plate is
installed in the pocket where the sensor
cables are able to connect to the back of
the plate. A separate cable,
C‑SG/LX8‑S, is installed on the plate
outside of the mold, and joins the plate to
the sensor adapter SG‑LX8‑S‑ID, which is
attached to the eDART system.
Cover Plate
Clamp Plate
B Plate or Cavity Insert
Ejector Retainer Plate
Ejector Plate
SG-8
SG-8
Plate
Sensors in Mold C-SG/LX8-S-ID
Cable
SG/LX8-S-ID
Adapter

Eight‑Channel Strain Gage Sensor Plate with ID SG‑8 | Product Manual
6
Clamp Plate
B Plate or Cavity Insert
Ejector Retainer Plate
Ejector Plate
SG-8
SG-8
Plate
Sensors in Mold C-SG/LX8-S-ID
Cable
SG/LX8-S-ID
Adapter
EJECTOR PLATE INSTALLATIONS
A pocket is machined into the mold ejector plate—in conjunction with sensor pockets
and cable channels—for the sensor plate (refer to sensor product manuals for sensor and
cable installation). The plate is installed in the pocket where the sensor cables are able
to connect to the back of the plate. A separate cable, C‑SG/LX8‑S, is installed on the
plate outside of the mold, and joins the plate to the sensor adapter SG‑LX8‑S‑ID, which is
attached to the eDART system.
INSTALLATION OVERVIEW (continued)

RJG, Inc. 7
Product Manual | Eight-Channel Strain Gage Sensor Plate with ID SG-8
INSTALLATION SPECIFICATIONS
CLAMP PLATE INSTALLATIONS
Date: 06.03.2022
Drawn: K.J.Brettschneider
Check: M.Groleau
Design:
Description:
Eight-Channel Strain
Gage Sensor Plate with ID SG-8
Installation
NOTES:
DO NOT SCALE PRINT 1.
BREAK ALL SHARP EDGES, 0.005 [0.03] R MAX 2.
DIMENSIONS IN INCHES [MM], UNLESS NOTED 3.
TOLERANCES UNLESS SPECIFIED: 4.
XXX =
0.003 [0.08]
XX = 0.01 [0.3]
ANGLES = 3 30
SG-8 Sensor Plate with ID
Top of Mold
CC
SECTION C-C
Lynx™ Eight-Channel Strain Gage Sensor Plate with Mold ID SG-8 Installation—Ejector Plate Installation
Drawing Title: SG-8_02

8 RJG, Inc. Eight‑Channel Strain Gage Sensor Plate with ID SG‑8 | Product Manual
INSTALLATION SPECIFICATIONS (continued)
CLAMP PLATE INSTALLATIONS
Date: 06.03.2022
Drawn: K.J.Brettschneider
Check: M.Groleau
Design:
Description:
Eight-Channel Strain
Gage Sensor Plate with ID SG-8
Installation
NOTES:
DO NOT SCALE PRINT 1.
BREAK ALL SHARP EDGES, 0.005 [0.03] R MAX 2.
DIMENSIONS IN INCHES [MM], UNLESS NOTED 3.
TOLERANCES UNLESS SPECIFIED: 4.
XXX = 0.003 [0.08]
XX = 0.01 [0.3]
ANGLES = 3 30
0.780±0.005
19.81±0.13
R0.125 MIN
3.18 MIN
(2 PL)
1.0
[26]
0.655
17
REF
Excess Cable Pocket
2.10
53.4
3.16
80
0.72
18.3
0.38
[9.5]
0.25
+
-
0.00
0.06
6
-
0.00
1.50
M4 X 0.7
.88 [22.4] (2PL)
0.875 MIN
22.2 MIN
REF
Lynx™ Eight-Channel Strain Gage Sensor Plate with Mold ID SG-8 Installation—Ejector Plate Installation
Drawing Title: SG-8_03

Product Manual | Eight-Channel Strain Gage Sensor Plate with ID SG-8 9
1. Connector Pocket
The SG‑8 requires two pockets for
installation; one pocket provides space for
excess cabling, while the other provides
space for the sensor connections. The
area—or “wall”—between the pockets
provides a supporting compression fit for
the sensor connections to the plate.
Machine a pocket for the connector
into the mold clamp plate. The SG‑8
plate requires a pocket 2.10” (53,4mm)
wide by 0.8” ±.005 (20,3mm ±0,13) long
by 0.72” (18,3mm) deep for the inner,
sensor‑connections‑side ( 1–3at right).
In addition, the connector pocket must
have two radii added to each side for ease
of installation/removal; machine 0.125”
(3,18mm) two places ( 4at right).
Drill and tap in two locations 3.16” (80mm
[5at right]) on center of the connector
pocket for the included M4 x 0.7 socket
head cap screws 0.88” (22,4 mm) deep.
12.10” (53,3mm)
20.8” ±.005 (20,3mm ±,13)
30.72” (18,3mm)
40.125” (3,18mm) R.
53.16” (80mm)
1
2
3
4
4
5
INSTALLATION SPECIFICATIONS (continued)
CLAMP PLATE INSTALLATIONS

10 RJG, Inc. Eight‑Channel Strain Gage Sensor Plate with ID SG‑8 | Product Manual
INSTALLATION SPECIFICATIONS (continued)
EJECTOR PLATE INSTALLATIONS
Date: 06.03.2022
Drawn: K.J.Brettschneider
Check: M.Groleau
Design:
Description:
Eight-Channel Strain
Gage Sensor Plate with ID SG-8
Installation
NOTES:
DO NOT SCALE PRINT 1.
BREAK ALL SHARP EDGES, 0.005 [0.03] R MAX 2.
DIMENSIONS IN INCHES [MM], UNLESS NOTED 3.
TOLERANCES UNLESS SPECIFIED: 4.
XXX = 0.003 [0.08]
XX = 0.01 [0.3]
ANGLES = 3 30
DD
SECTION D-D
Lynx™ Eight-Channel Strain Gage Sensor Plate with Mold ID SG-8 Installation—Clamp Plate Installation
Drawing Title: SG-8_04

RJG, Inc. 11
Product Manual | Eight-Channel Strain Gage Sensor Plate with ID SG-8
INSTALLATION SPECIFICATIONS (continued)
EJECTOR PLATE INSTALLATIONS
Date: 06.03.2022
Drawn: K.J.Brettschneider
Check: M.Groleau
Design:
Description:
Eight-Channel Strain
Gage Sensor Plate with ID SG-8
Installation
NOTES:
DO NOT SCALE PRINT 1.
BREAK ALL SHARP EDGES, 0.005 [0.03] R MAX 2.
DIMENSIONS IN INCHES [MM], UNLESS NOTED 3.
TOLERANCES UNLESS SPECIFIED: 4.
XXX = 0.003 [0.08]
XX = 0.01 [0.3]
ANGLES = 3 30
0.8±0.005
[20.3
0.13]
FOR CLAMP PLATE
INSTALLATIONS ONLY
0.655
17
REF
1.0
26
R0.125 MIN
3.18 MIN
(2PL)
E
E
Excess Cable Pocket
2.10
53.3
3.16
80
M4 X 0.7
.88 [22.4] (2PL)
0.72
18.3
0.38
[9.5]
0.25
+
-
0.00
0.06
6
-
0.0
1.5
1.50 MIN
38.1 MIN
SECTION E-E
SCALE 1 : 2
Lynx™ Eight-Channel Strain Gage Sensor Plate with Mold ID SG-8 Installation—Clamp Plate Installation
Drawing Title: SG-8_05

Eight‑Channel Strain Gage Sensor Plate with ID SG‑8 | Product Manual
12
1. Connector Pocket
The SG‑8 requires two pockets for
installation; one pocket provides space for
excess cabling, while the other provides
space for the sensor connections. The
area—or “wall”—between the pockets
provides a supporting compression fit for
the sensor connections to the plate.
Machine a pocket for the connector into
the mold ejector plate. The SG‑8 plate
requires a pocket 2.10” (53,4mm) wide
by 0.780” ±.005 (19,8mm ±0,13) long
by 0.72” (18,3mm) deep for the inner,
sensor‑connections‑side ( 1–3at right).
In addition, the connector pocket must
have two radii added to each side for ease
of installation/removal; machine 0.125”
(3,18mm) two places ( 4at right).
Drill and tap in two locations 3.16” (80mm
[5at right]) on center of the connector
pocket for the included M4 x 0.7 socket
head cap screws 0.88” (22,4 mm) deep.
12.10” (53,3mm)
20.780” ±.005 (19,8mm ±,13)
30.72” (18,3mm)
40.125” (3,18mm) R.
53.16” (80mm)
1
2
3
4
4
5
INSTALLATION SPECIFICATIONS (continued)
EJECTOR PLATE INSTALLATIONS