Rice Lake iRite 920i User manual

67887
Programmable Indicator
Version 2.0
Installation Manual
FINAL DRAFT 24 October 2003

© 2003 Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America.
Specifications subject to change without notice.
Version 2.0, October 2003
Technical training seminars are available through Rice Lake Weighing Systems.
Course descriptions and dates can be viewed at www.rlws.com or obtained by calling
715-234-9171 and asking for the training department.
Contents
About This Manual................................................................................................................................... 1
1.0 Introduction.................................................................................................................................. 1
1.1 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Indicator Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Softkey Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 System Configurations and Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.0 Installation................................................................................................................................... 6
2.1 Unpacking and Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Enclosure Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.1 Cable Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.2 Load Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.3 Serial Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.4 Digital I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Installing Option Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5 Expansion Board Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6 Enclosure Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.7 CPU Board Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.8 Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.9 Battery Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.10 Parts Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.11 Replacement Parts and Assembly Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.0 Configuration.............................................................................................................................. 20
3.1 Configuration Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.1 iRev Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.2 Serial Command Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.3 Front Panel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2 Menu Structures and Parameter Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2.1 SCALES Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2.2 SERIAL Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.2.3 FEATURE Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.2.4 PFORMT Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.2.5 SETPTS Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.2.6 DIG I/O Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.2.7 Analog Output Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
3.2.8 Version Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.0 Calibration.................................................................................................................................. 46
4.1 Gravity Compensation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.2 Front Panel Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.3 Serial Command Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.4 iRev Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
5.0 Using iRev.................................................................................................................................. 50
5.1 Installing and Starting the Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5.2 Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5.3 Configuring Scales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
5.3.1 Configuring Other Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
5.3.2 Setpoints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
5.4 Configuring the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

ii
920i
Installation Manual
5.5 Connecting to the Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
5.5.1 Downloading to the Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
5.5.2 Uploading Configuration to iRev . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
5.6 Installing Software Upgrades. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.0 Print Formatting......................................................................................................................... 53
6.1 Print Formatting Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.2 Default Print Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
6.3 Customizing Print Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.3.1 Using iRev . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.3.2 Using the Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.3.3 Using Serial Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.0 Truck Modes............................................................................................................................... 58
7.1 Using the Truck Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
7.2 Using the Truck Regs Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
7.3 Weigh-In Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
7.4 Weigh-Out Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
7.5 Single-Transaction Tare Weights and IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
8.0 Setpoints.................................................................................................................................... 60
8.1 Batch and Continuous Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
8.2 Setpoint Menu Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
8.3 Batch Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
8.4 Batching Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
9.0 Serial Commands....................................................................................................................... 78
9.1 The Serial Command Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
9.1.1 Key Press Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
9.1.2 Reporting Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
9.1.3 Clear and Reset Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
9.1.4 Parameter Setting Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
9.1.5 Normal Mode Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
9.1.6 Batching Control Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.1.7 Database Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.2 Widget Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.2.1 Scale Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.2.2 Bitmap Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.2.3 Bargraph Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
9.2.4 Label Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
9.2.5 Numeric Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
9.2.6 Symbol Widgets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
10.0 Appendix.................................................................................................................................... 93
10.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
10.1.1 Option Card Diagnostic Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
10.1.2 Using the HARDWARE Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
10.1.3 User Program Diagnostic Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
10.1.4 Using the XE Serial Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
10.2 Regulatory Mode Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
10.3 PS/2 Keyboard Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
10.4 Serial Scale Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
10.5 Custom Stream Formatting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
10.6 Stream Formatting Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
10.6.1 Toledo 8142 Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
10.6.2 Cardinal 738 Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
10.6.3 Weightronix WI -120 Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
10.7 Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
10.8 ASCII Character Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
10.9 Digital Filtering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
10.10 Conversion Factors for Secondary Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
10.11 Dimension Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
10.12 Printed Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
10.13 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
920i Limited Warranty ......................................................................................................................... 114

Introduction 1
About This Manual
This manual is intended for use by service technicians
responsible for installing and servicing
920i ™
digital
weight indicators. This manual applies to Version 2.0
of the
920i
indicator software.
ConÞguration and calibration of the indicator can be
accomplished using the
iRev
™
conÞguration utility,
serial commands, or the indicator front panel keys.
See Section 3.1 on page 20 for information about
conÞguration methods.
Some procedures described in this
manual require work inside the indicator
enclosure. These procedures are to be
performed by qualified service personnel
only.
Authorized distributors and their employees
can view or download this manual from the
Rice Lake Weighing Systems distributor
site at
www.rlws.com
.
The
Operator Card included with this manual
provides basic operating instructions for users of the
920i
. Please leave the Operator Card with the
indicator when installation and conÞguration are
complete.
1.0 Introduction
The
920i
is a programmable, multi-channel digital
weight indicator/controller. The conÞguration can be
performed using the front panel, with an attached
PS/2
¨
1
-type keyboard, or using the
iRev
utility.
Custom event-driven programs can be written with the
iRite
language up to 128K in program size. These
programs are compiled with an iRite
compiler utility,
which can only be downloaded into the indicator. The
RLWS Web Update utility can be used to download
920i
Þrmware upgrades to a PC from the RLWS web
site; iRev
provides functions for installing the new
software into the 920i
.
Onboard Features
Features of the basic
920i
include:
¥ Support for A/D scale or serial scale inputs. The
maximum number of scale inputs is 28; these
can be combined to represent up to 32 scale
conÞgurations.
¥ Four digital I/O channels on main board, each
conÞgurable as either input or output.
¥ Four serial ports on main board (Ports 1Ð4)
support duplex RS-232 up to 115200 bps. Port 2
supports hardware handshaking and remote
keyboard input; Ports 3 and 4 support 20mA
output; Port 4 supports 2-wire RS-485
communications.
¥ External DB-9 and DIN-8 connectors for serial
connection to a PC and attachment of PS/2-type
remote keyboard.
¥ Available in 115 VAC and 230 VAC North
American and European versions.
Other features include:
¥ 64K of non-volatile RAM can be allocated to
databases using
iRev
database editor.
¥ ConÞgurable print formats can be deÞned for up
to 1000 characters each. These formats are used
to print gross or net weights, truck in/out
weights, setpoint weights, accumulator weights,
alert messages, and header information.
Additional print formats can be created with
iRite
.
¥ Six truck modes to store and recall weights for
gross, tare, and net printing. The truck register
contains Þelds for ID number, weight, and the
transaction time and date. Weights can be stored
permanently or erased at the end of the
transaction.
¥ The setpoint engine supports 30 conÞgurable
setpoint kinds. Setpoints can be arranged in a
sequential batch routine of up to 100 steps. If
setpoints are conÞgured as free running
setpoints, they can be tied to program control.
This allows for simultaneous batching
operations to be written with the
iRite
language.
A scale must be conÞgured to enable the
setpoint engine.
The
920i
is NTEP-certiÞed for Classes III and III L at
10,000 divisions. See Section 10.13 on page 113 for
more information about additional certiÞcations and
approvals.
Option Cards
The CPU board provides two slots for installing A/D
or other option cards. Additional option cards can be
added using either two-card or six-card expansion
boards connected to the CPU board via the expansion
bus. Available option cards include:
Warning
1. PS/2
®
is a registered trademark of IBM Corporation.

2
920i
Installation Manual
¥ Single- and dual-channel A/D cards to drive up to
sixteen 350 W load cells per A/D card. A/D cards
support both 4- and 6-wire load cell connections.
A/D cards are matched to allow interchangeability
without having to recalibrate the scale. Calibration
includes support for latitude and elevation
compensation, millivolt calibration, and Þve-point
linearization.
¥ Analog output card for 0Ð10 VDC or 0Ð20 mA
tracking of gross or net weight values.
¥ Dual-channel serial expansion card provides one
additional RS-485 port or two ports for either
RS-232 or 20mA communications at up to
19200 bps.
¥ 24-channel digital I/O expansion card.
¥ 1MB memory expansion card for expanded
database capability.
¥ Pulse input card for use with pulse count and
pulse rate setpoints.
¥ Bus interface cards for Ethernet, DeviceNetª
1
,
Allen-Bradley Remote I/O
2
, and ProÞbus
¨
DP
networks
3
.
See Section 2.5 on page 10 for detailed information
about expansion board conÞgurations. Part numbers
of available option cards and expansion boards are
listed in Section 1.4 on page 4.
Front Panel
The
920i
front panel, shown in Figure 1-1, consists of
a 27-button keypad with a large backlit LCD display.
The keys are grouped as Þve conÞgurable softkeys,
Þve primary scale function keys, four navigation keys,
and numeric entry keys. The display can be
graphically conÞgured using
iRev
software.
Weight information is displayed with a graphical scale
in six font sizes up to 1.2 inches. Up to four scale
widgets can be displayed in legal-for-trade,
multiple-scale applications. Status areas on the
display are used for operator prompts and entering
data. The remainder of the display can be graphically
conÞgured for representation of a speciÞc application.
Display contrast can be adjusted with the LCD
contrast potentiometer.
Figure 1-1. 920i Front Panel
Enclosures
The
920i
is available in four enclosures: universal
(tilt-stand), desktop, panel mount, and wall mount.
Stainless steel enclosures are rated for NEMA
4X/IP66. This manual provides assembly drawings
and replacement parts lists for the universal and
desktop models; supplemental documentation
provides information speciÞc to the panel mount and
wall mount models (Section 1.4 on page 4).
1.1 Operating Modes
The
920i
has two modes of operation:
Normal mode
Normal mode is the weighing mode of the
indicator. The indicator displays gross, net, or tare
weights as required, using the secondary display
to indicate scale status and the type of weight
value displayed. Once conÞguration is complete
and a legal seal is afÞxed to the large Þllister-head
screw on the indicator enclosure, this is the only
mode in which the
920i
can operate.
Setup mode
Most of the procedures described in this manual
require the indicator to be in setup mode,
including conÞguration and calibration.
To enter setup mode, remove the large Þllister
head screw from the enclosure. Insert a
screwdriver or a similar tool into the access hole
and press the setup switch once. The indicator
display changes to show scale conÞguration
menus.
1. DeviceNet™ is a trademark of the Open DeviceNet Vendor
Association.
2. Allen-Bradley
®
, PLC
®
, and SLC
™
are trademarks of Allen-Bradley
Company, Inc., a Rockwell International company.
3. Profibus
®
is a registered trademark of Profibus International.
PRINT
UNITS
SOFTKEY1 SOFTKEY2 SOFTKEY3 SOFTKEY4 SOFTKEY5

Introduction 3
1.2 Indicator Operations
Basic
920i
operations are summarized below:
Toggle Gross/Net Mode
Press the
GROSS/NET
key to switch the display mode
from gross to net, or from net to gross. If a tare value
has been entered or acquired, the net value is the gross
weight minus the tare. If no tare has been entered or
acquired, the display remains in gross mode.
Gross mode is indicated by the word
Gross
(or
Brutto
in OIML mode); net mode is indicated by the word
Net
.
Toggle Units
Press the
UNITS
key to switch between primary,
secondary, and tertiary units.
Zero Scale
1. In gross mode, remove all weight from the scale
and wait for the standstill annunciator ( ).
2. Press the
ZERO key. The center of zero ( )
annunciator lights to indicate the scale is zeroed.
Acquire Tare
1. Place container on scale and wait for the
standstill annunciator ( ).
2. Press the
TARE
key to acquire the tare weight of
the container.
3. Display shifts to net weight and shows the word
Net on the display.
Remove Stored Tare Value
1. Remove all weight from the scale and wait for
the standstill annunciator ( ).
2. Press the
TARE
key (or, in OIML mode, the
ZERO
key). Display shifts to gross weight and
shows the word
Gross
.
Print Ticket
1. Wait for the standstill annunciator ( ).
2. Press the
PRINT key to send data to the serial
port.
Accumulator Functions
The accumulator must be enabled before use in either
normal mode or setpoint operations. Once enabled,
weight (net weight if a tare is in the system) is
accumulated whenever a print operation is performed
using the
PRINT key, digital input, or serial command.
The scale must return to zero (net zero if a tare is in
the system) before the next accumulation.
The
Display Accum
softkey can be conÞgured to
display the current accumulator value. Printing while
the accumulator is displayed, or when the setpoint
PSHACCUM function is active, uses the ACCFMT
print format (see Section 6.0 on page 53).
Press the
CLEAR
key twice to clear the accumulator.
1.3 Softkey Operations
Softkeys can be deÞned to provide additional operator
functions for speciÞc applications. Softkey assignments
are listed on the tabs shown at the bottom of the LCD
display; softkey functions are activated by pressing the
arrow keys below the softkey tabs (Figure 1-1 on page
2).
The particular set of softkeys shown on the display is
determined by the indicator conÞguration and
program.
Softkey Description
Time/Date Displays current time and date; allows
time and date change.
Display Tare Displays tare value for the current scale
Display
Accum
Displays accumulator value, if enabled, for
the current scale.
Display ROC Displays rate-of-change value, if enabled,
for the current scale.
Setpoint Displays a menu of configured setpoints;
allows display and change of some
setpoint parameters.
Batch Start Starts a configured batch.
Batch Stop Stops a running batch and turns off all
associated digital outputs. Requires a
batch start to resume processing.
Batch Pause Pauses a running batch. (Same as stop,
but digital outputs, if on, are not turned
off.)
Batch Reset Stops a batch and resets it to the first
batch step.
Weigh In Allows truck ID entry; generates weigh-in
ticket for truck weighing applications.
Weigh Out Allows truck ID entry; generates weigh-out
ticket for truck weighing applications.
Truck Regs Displays truck register; allows deletion of
individual or all entries. Truck register can
be printed by pressing the PRINT key
while the truck register is displayed.
Unit ID Allows display or change of Unit ID.
Select Scale For multi-scale applications, provides a
prompt to enter the scale number to be
displayed.
Diagnostics Provides access to diagnostic displays for
attached iQUBE junction boxes.
F1–F10 User-programmable keys; defined by
application.
More… For applications with more than five
defined softkeys, the More… key is
automatically assigned to the fifth softkey
position. Press More… to toggle between
groups of softkeys.
Table 1-1. ConÞgurable Softkeys

4920i Installation Manual
1.4 System Configurations and Options
Table 1-2 lists the 920i system models and part numbers. All models include CPU board with two option card
slots, PS/2 and DB-9 communications ports. Each model comes equipped with a single- or dual-channel A/D
card installed in Slot 1 (see Table 1-3).
Feature Desktop Universal Panel Mount Wall Mount
CPU board with two option card slots ÖÖÖÖ
Single- or dual-channel A/D card in slot 1 ÖÖÖÖ
DIN-8 and DB-9 communications ports ÖÖÖÖ
25W internal power supply ÖÖ
65W internal power supply ÖÖ
Supports internal 2-card expansion board ÖÖ
Supports internal 6-card expansion board Ö
Supports internal relay rack Ö
Table 1-2. 920i Model Features
System Model
Model PNs
Single-Channel A/D Dual-Channel A/D
Desktop model, 115 VAC 67528 69768
Desktop model, 230 VAC, North American, NEMA 15-5 power cord 67616 69773
Desktop model, 230 VAC, European, CEE 7/7 power cord 69523 69775
Universal (tilt stand) model, 115 VAC 67527 69767
Universal (tilt stand) model, 230 VAC, North American, NEMA 15-5 power cord 67615 69772
Universal (tilt stand) model, 230 VAC, European, CEE 7/7 power cord 69522 69774
Panel mount model, 115 VAC 69764 69771
Panel mount model, 230 VAC, North American, NEMA 15-5 power cord 69766 69777
Panel mount model, 230 VAC, European, CEE 7/7 power cord 72137 72138
Wall mount model, 115 VAC 69763 69770
Wall mount model, 230 VAC, North American, NEMA 15-5 power cord 69765 69776
Wall mount model, 230 VAC, European, CEE 7/7 power cord 72133 72134
Table 1-3. Part Numbers for 920i Models

Introduction 5
Option Cards
Table 1-4 lists the available 920i option cards. Any of
the listed option cards can be installed in Slot 2 of the
CPU board or in any available slot of an attached
expansion board.
Expansion Boards
Table 1-5 lists the expansion boards available for the
panel mount and wall mount enclosures. The panel
mount enclosure can accommodate a single 2-card
expansion board; the wall mount enclosure supports
either a 2-card or a 6-card expansion board. Any of the
available option cards can be installed in any available
expansion board slot.
A second two- or six-card expansion board can also be
connected to the 920i, providing up to 14 option card
slots. Consult factory for details. See Section 2.5 on
page 10 for detailed information about slot and serial
port assignments for expanded system conÞgurations.
Relay Options
8-, 16-, and 24-channel relay racks are available for all
920i systems. Relays can be installed internally in the
wall mount enclosure; all other models require an
external enclosure for the relays. Consult factory for
details.
1.5 Summary of Changes
Version 2.0 software changes for the 920i indicator
include the following:
¥ Support for the iQUBE digital diagnostic
junction box. The iQUBE can be conÞgured for
use with the 920i using either the indicator
menus or the iRev conÞguration utility. See the
iQUBE Installation Manual, PN 77224, for more
information.
¥ Support for an ÒindustrialÓ (INDUST)
regulatory mode (REGULAT parameter on the
FEATURE menu). The INDUST mode allows
display, clear, zero, tare, accumulate, and print
functions normally controlled by the regulatory
mode setting to be customized. See Figure 3-11
on page 39 and Section 10.2 on page 96 for
more information.
¥ A weighment threshold parameter (WMTTHR)
has been added to the SCALES menu to allow
speciÞcation of the number of grads required for
a weighment to be counted (see Section 3.2.1 on
page 22). Also, primary, secondary, and tertiary
units can now be disabled by specifying a value
of OFF on the UNITS parameters.
¥ The SERIAL menu has been restructured to
provide new port types for non-legal-for-trade
serial scales (IND SC), and the iQUBE junction
box (IQUBE). Port parameters now include
STOPBITS, ECHO, and RESPONSE
parameters; 8ODD and 8EVEN values can be
speciÞed for the BITS parameter.
¥ The PFORMT menu now supports an ALERT
format type. The alert format is used to provide
information when an error indication is
generated by the iQUBE junction box. See
Section 6.2 on page 55.
¥ New print formatting commands include <CD>
(last calibration date), <NOC> (number of
calibrations), and <NOW> (number of
weighments). See Section 6.1 on page 53.
¥ BATSTOP has been added as a selection under
the DIG I/O menu (see Section 3.2.6 on
page 42).
¥ Function key mapping for attached keyboards
has been changed to pair the function of F-keys
1Ð5 with softkeys 1Ð5. See Section 10.3 on
page 97.
Option Card PN
Single-channel A/D card 68532
Dual-channel A/D card 68533
Analog output card 67602
Dual serial port expansion card 67604
24-channel digital I/O expansion card 67601
1MB NV RAM memory expansion card 67600
Pulse input card 67603
Ethernet communications card 71986
DeviceNet interface card 68541
Allen-Bradley Remote I/O interface card 68539
Profibus DP interface card 68540
Table 1-4. Part Numbers for 920i Option Cards
Expansion Board PN
Two-card expansion board for panel mount
enclosure, slots 3–4. Includes 2-inch, 34-pin
ribbon cable and power supply cable.
71743
Two-card expansion board for wall mount
enclosure, slots 3–4. Includes 24-inch, 34-pin
ribbon cable and power supply cable.
69782
Six-card expansion board for wall mount
enclosure, slots 3–8. Includes 16-inch, 34-pin
ribbon cable and power supply cable.
69783
Table 1-5. Part Numbers for 920i Expansion Boards

6920i Installation Manual
2.0 Installation
This section describes procedures for connecting load
cell, digital I/O, and serial communications cables to
the 920i indicator.Assembly drawings and
replacement parts lists for the desktop and universal
models are included for the service technician. See
Section 10.11 on page 108 for dimension drawings of
the all models.
• Use a wrist strap to ground yourself and protect
components from electrostatic discharge (ESD)
when working inside the indicator enclosure.
• This unit uses double pole/neutral fusing which
could create an electric shock hazard. Procedures
requiring work inside the indicator must be
performed by qualified service personnel only.
• The supply cord serves as the power disconnect for
the 920i. The power outlet supplying the indicator
must be installed near the unit and be easily
accessible.
2.1 Unpacking and Assembly
Immediately after unpacking, visually inspect the 920i
to ensure all components are included and
undamaged. The shipping carton should contain the
indicator, this manual, and a parts kit. If any parts
were damaged in shipment, notify Rice Lake
Weighing Systems and the shipper immediately.
See Section 2.10 on page 12 for parts kit contents.
2.2 Enclosure Disassembly
The indicator enclosure must be opened to install
option cards and to connect cables for installed option
cards.
The 920i has no on/off switch. Before
opening the unit, ensure the power cord
is disconnected from the power outlet.
Ensure power to the indicator is disconnected, then
place the indicator face-down on an antistatic work
mat. Remove the screws that hold the backplate to the
enclosure body, then lift the backplate away from the
enclosure and set it aside.
2.3 Cable Connections
Desktop and universal models of the 920i provide six
cord grips for cabling into the indicator: one for the
power cord, Þve to accommodate cabling for option
cards. Install plugs in all unused cord grips to prevent
moisture from entering the enclosure.
2.3.1 Cable Grounding
Except for the power cord, all cables routed through
the cord grips should be grounded against the
indicator enclosure. Do the following to ground
shielded cables:
¥ Use the lockwashers, clamps, and kep nuts
provided in the parts kit to install grounding
clamps on the enclosure studs adjacent to cord
grips. Install grounding clamps only for cord
grips that will be used; do not tighten nuts.
¥ Route cables through cord grips and grounding
clamps to determine cable lengths required to
reach cable connectors. Mark cables to remove
insulation and shield as described below:
¥ For cables with foil shielding, strip insulation
and foil from the cable half an inch (15 mm)
past the grounding clamp (see Figure 2-1).
Fold the foil shield back on the cable where
the cable passes through the clamp. Ensure
silver (conductive) side of foil is turned
outward for contact with the grounding
clamp.
¥ For cables with braided shielding, strip cable
insulation and braided shield from a point just
past the grounding clamp. Strip another half
inch (15 mm) of insulation only to expose the
braid where the cable passes through the
clamp (see Figure 2-1).
Figure 2-1. Grounding Clamp Attachment for Foil-Shielded
and Braided Cabling
¥ For load cell cables, cut the shield wire just past
the grounding clamp. Shield wire function is
provided by contact between the cable shield
and the grounding clamp.
¥ Route stripped cables through cord grips and
clamps. Ensure shields contact grounding
clamps as shown in Figure 2-1. Tighten
grounding clamp nuts.
¥ Finish installation using cable ties to secure
cables inside of indicator enclosure.
Caution
Warning
a
a
Cord grip
Insulated cable
Foil (silver side out) Grounding clamp
Shield wire (cut)
a
a
Length of foil before folding
back on cable insulation
Cut insulation here
for foil-shielded cables
Braid
Cut insulation here
for braided cables
NOTE: Install lockwashers
first, against enclosure,
under grounding clamp

Installation 7
2.3.2 Load Cells
To attach cable from a load cell or junction box to an
installed A/D card, route the cable through the cord
grip and ground the shield wire as described in
Section 2.3.1 on page 6.
Next, remove connector J1 from the A/D card. The
connector plugs into a header on the A/D card (see
Figure 2-2). Wire the load cell cable from the load cell
or junction box to connector J1 as shown in Table 2-1.
Figure 2-2. Single-Channel A/D Card
If using 6-wire load cell cable (with sense wires),
remove jumpers JP1 and JP2 before reinstalling
connector J1. For 4-wire installation, leave jumpers
JP1 and JP2 on. For 6-wire load cell connections on
dual-channel A/D cards, remove jumpers JP3 and JP4
for connections to J2.
When connections are complete, reinstall load cell
connector on the A/D card and use two cable ties to
secure the load cell cable to the inside of the
enclosure.
2.3.3 Serial Communications
The four communications ports on the 920i CPU
board support full duplex RS-232, 20 mA output, or
RS-485 communications at up to 115200 bps.
To attach serial communications cables, route the
cable through the cord grip and ground the shield wire
as described in Section 2.3.1 on page 6. Remove the
serial connector from the CPU board and wire to the
connector. Once cables are attached, plug the
connector into the header on the board. Use cable ties
to secure serial cables to the inside of the enclosure.
Table 2-2 shows the pin assignments for Ports 1, 3,
and 4. Port 2 provides DIN-8 and DB-9 connectors for
remote keyboard attachment of PS/2-type personal
computer keyboards (see Figure 2-3 on page 8). The
DB-9 connector pin assignments for Port 2 are shown
in Table 2-3 on page 8; see Section 10.3 on page 97
for information about the PS/2 keyboard interface.
Serial ports are conÞgured using the SERIAL menu.
See Section 3.2.2 on page 30 for conÞguration
information.
An optional dual-channel serial communications
expansion card, PN 67604, is also available. Each
serial expansion card provides two additional serial
ports, including one port that supports RS-485
communications. Both ports on the expansion card
can support RS-232 or 20mA connections.
A/D Card
Connector Pin Function
1 +SIG
2 –SIG
3 +SENSE
4 –SENSE
5 +EXC
6 –EXC
• For 6-wire load cell connections to connector J1, remove
jumpers JP1 and JP2.
• For 6-wire load cell connections to connector J2 (dual A/D
cards), remove jumpers JP3 and JP4. 2.
Table 2-1. A/D Card Pin Assignments
SIG +
SIG –
SEN +
SEN –
EXC +
EXC –
J1 JP2JP1
Connector Pin Signal Port
J11 1 GND 1
2 RS-232 RxD
3 RS-232 TxD
J9 1 GND / –20mA OUT 3
2 RS-232 RxD
3 RS-232 TxD
4 +20mA OUT
J10 1 GND / –20mA OUT 4
2 RS-232 RxD
3 RS-232 TxD
4 +20mA OUT
5 RS-485 A
6 RS-485 B
Table 2-2. Serial Port Pin Assignments

8920i Installation Manual
Figure 2-3. Interface Board Connections
Figure 2-4. 920i CPU Board, Showing Option Card Locations
LCD Contrast
DIN-8 Connector for
PS/2 Remote Keyboard
DB-9 Connector
for Port 2 / J8
1
DB-9 Pin Signal
2 TxD
3 RxD
5 GND
7 CTS
8RTS
Table 2-3. DB-9 Connector Pin Assignments
J11
PORT 1 J9 PORT 3 J10 PORT 4 J2
PIEZO
BUZZER
OPTION J13
+6VDC
GND
GND
–6VDC
EXPANSION BUS
GND
RS-232 RxD
RS-232 TxD
GND / –20mA OUT
RS-232 RxD
RS-232 TxD
+20mA OUT
RS-232 RxD
RS-232 TxD
+20mA OUT
RS-485 A
RS-485 B
+5VDC
GND
DIO1 DIO2 DIO3 DIO4
INTERFACE
BOARD
CONNECTION
POWER
SUPPLY
SW1
SW2
JP3
1
11
J5 J6
J7
DIGITAL I/O
J8
PORT 2
OPTION CARD
CONNECTOR
OPTION CARD
CONNECTOR
OPTION CARD LOCATIONS
J1
1
BATTERY
J15
REMOTE
SETUP
SWITCH
BOOT
MODE
SLOT 1 SLOT 2
GND / –20mA OUT

Installation 9
2.3.4 Digital I/O
Digital inputs can be set to provide many indicator
functions, including all keypad functions. Digital
inputs are active low (0 VDC), inactive high (5 VDC).
Digital outputs are typically used to control relays that
drive other equipment. Outputs are designed to sink,
rather than source, switching current. Each output is a
normally open collector circuit, capable of sinking 24
mA when active. Digital outputs are wired to switch
relays when the digital output is active (low, 0 VDC)
with reference to a 5 VDC supply.
Table 2-4 shows the pin assignments for connector J2.
Digital inputs and outputs are conÞgured using the
DIG I/O menu. See Section 3.2.6 on page 42 for
conÞguration information.
An optional 24-channel digital I/O expansion card,
PN 67601, is available for applications requiring more
digital I/O channels.
2.4 Installing Option Cards
Each option card is shipped with installation
instructions speciÞc to that card. The general
procedure for all option cards is as follows:
Option cards are not hot-pluggable.
Disconnect power to the 920i before
installing option cards.
1. Disconnect power to the indicator. Remove
backplate as described in Section 2.2 on page 6.
2. Carefully align the large option card connector
with connector J5 or J6 on the CPU board (see
Figure 2-5). Press down to seat the option card
in the CPU board connector.
3. Use the screws provided in the option kit to
secure the other end of the option card to the
threaded standoffs on the CPU board (see
Figure 2-5).
4. Make connections to the option card as required.
Use cable ties to secure loose cables inside the
enclosure as shown in Figure 2-6. When
installation is complete, reassemble the
enclosure as described in Section 2.6 on
page 11.
Figure 2-5. Installing Option Card Onto CPU Board
Figure 2-6. Installed Option Cards, Showing Secured
Cables
The 920i automatically recognizes all installed option
cards when the unit is powered on. No
hardware-speciÞc conÞguration is required to identify
the newly-installed card to the system.
J2 Pin J2 Signal
1 +5 VDC
2 GND
3 DIO 1
4 DIO 2
5 DIO 3
6 DIO 4
Table 2-4. J2 Pin Assignments (Digital I/O)
Caution
J5
J6
WARNING!
HIGH VOLTAGE
DISCONNECT POWER BEFORE SERVICING
PULSE INPUT
CARD DUAL A/D
CARD
INDICATES
OPTION CARD
CABLE TIES
CT
CT CT
CT CT

10 920i Installation Manual
2.5 Expansion Board Configurations
Two- and six-card expansion boards allow up to
fourteen option cards to be attached to the 920i.
Figures 2-7 through 2-9 show the slot numbers
assigned for various combinations of two- and
six-card expansion boards. A single six-card
expansion board is assigned slots 3Ð8.
Figure 2-7. CPU Board with Two-Card Expansion Board
Figure 2-8. CPU Board with Two- and Six-Card Expansion
Boards
Figure 2-9. CPU Board with Two Six-Card Expansion
Boards
NOTES:
¥ The maximum number of option board slots is
fourteen: two onboard slots, plus two six-card
expansion boards.
¥ The two-card expansion board is always placed
at the end of the expansion bus. No more than
one two-card expansion board can be used in
any system conÞguration.
¥ The panel mount enclosure can accommodate a
single two-card expansion board.
¥ The wall mount enclosure can accommodate a
two-card or a six-card expansion board.
¥ Systems using two expansion boards are housed
in a custom enclosure.
SLOT 1 SLOT 2
CPU BOARD
1SLOT 3 SLOT 4
SLOT 0
SLOT 1 SLOT 2
SLOT 3 SLOT 4 SLOT 5
SLOT 6 SLOT 7 SLOT 8
CPU BOARD
SLOT 0
1SLOT 9 SLOT 10
SLOT 1 SLOT 2
SLOT 3 SLOT 4 SLOT 5
SLOT 6 SLOT 7 SLOT 8
SLOT 9 SLOT 10 SLOT 11
SLOT 12 SLOT 13 SLOT 14
CPU BOARD
SLOT 0

Installation 11
Expansion Board Serial Port Assignments
Serial port numbers are reserved for each option card
slot, regardless of the type of cards actually installed.
Two port numbers are reserved for each slot that could
contain a dual-channel serial expansion card.
Table 2-5 shows the port numbers assigned to each
slot.
For example, in a system with a two-card expansion
board, port assignments are reserved as shown in
Figure 2-10. If the only serial card installed in this
system is in SLOT 4 of the expansion board, the
system consists of serial ports 1Ð4 (on the CPU board)
and ports 11Ð12.
Figure 2-10. Serial Port Assignments, Two-Card Expansion
Board
2.6 Enclosure Reassembly
Once cabling is complete, position the backplate over
the enclosure and reinstall the backplate screws. Use
the torque pattern shown in Figure 2-11 to prevent
distorting the backplate gasket. Torque screws to 15
in-lb (1.7 N-m).
Figure 2-11. 920i Enclosure Backplate
2.7 CPU Board Removal
If you must remove the 920i CPU board, use the
following procedure:
1. Disconnect power to the indicator. Remove
backplate as described in Section 2.2 on
page 6.
2. Unplug connectors J9, J10, and J11 (serial
communications), J2 (digital I/O), P1 (power
supply), and connectors to any installed
option cards.
3. Remove any installed option cards.
4. Remove the Þve phillips head screws and two
kep nuts from the CPU board.
5. Gently lift up the CPU board, then disconnect
connectors J12 (power to display), J4 (ribbon
cable, J3 (keypad connector), then the cable
J8 (Port 2 serial port).
6. Remove CPU board from the enclosure. If
necessary, cut cable ties to shift cables out of
the way.
To replace the CPU board, reverse the above
procedure. Be sure to reinstall cable ties to secure all
cables inside the indicator enclosure.
Slot Number Serial Port Assignments
CPU board 1–4
1 5–6
2 7–8
3 9–10
4 11–12
5 13–14
6 15–16
7 17–18
8 19–20
9 21–22
10 23–24
11 25–26
12 27–28
13 29–30
14 31–32
Table 2-5. Expansion Board Serial Port Assignments
SLOT 1 SLOT 2
CPU BOARD
1SLOT 3 SLOT 4
SLOT 0
PORT
1
PORT
2
PORT
3PORT 4
PORTS
5–6 PORTS 7–8
PORTS
9–10 PORTS 11–12
1
3
5
14
17
16 12
9
8
7
10
11
18
15
4
2
6
13
Torque backplate screws
to 15 in-lb (1.7 N-m)

12 920i Installation Manual
2.8 Fuse Replacement
Fuses for the desktop and universal models of the 920i
are located under a cover plate on the outside of the
enclosure. Remove the cover plate, replace the fuses,
and reinstall the cover plate (see Figures 2-12 and
2-13).
To protect against the risk of fire,
replace fuses only with same type and
rating fuse.
See Section 10.13 on page 113 for complete fuse
speciÞcations for the desktop and universal units.
Interface board and fuse access cover
plates must be in place for use in
NEMA 4X/IP66 applications.
Figure 2-12. Interface Board and Fuse Locations, Desktop
Model
Figure 2-13. Interface Board and Fuse Locations,
Universal Model
2.9 Battery Replacement
The lithium battery on the CPU board maintains the
real-time clock and protects data stored in the system
RAM when the indicator is not connected to AC
power.
Data protected by the CPU board battery includes
time and date, truck and tare memory, onboard
database information, and setpoint conÞguration.
Use iRev to store a copy of the indicator conÞguration
on a PC before attempting battery replacement. If any
data is lost, the indicator conÞguration can be restored
from the PC.
NOTE: Memory option card data is also protected by a
lithium battery. All database information stored on a
memory card is lost if the memory card battery fails.
Watch for the low battery warning on the LCD display
and periodically check the battery voltage on both the
CPU board and on any installed memory option cards.
Batteries should be replaced when the indicator low
battery warning comes on, or when battery voltage
falls to 2.2 VDC. Life expectancy of the battery is ten
years.
See Figure 2-4 on page 8 for CPU board battery
location and orientation (positive side up).
Risk of explosion if battery is replaced
with incorrect type. Dispose of
batteries per manufacturer instruction.
2.10 Parts Kit Contents
Table 2-6 lists the parts kit contents for the desktop
and universal models of the 920i.
Caution
Caution
Torque fuse and interface board access covers to
8 in-lb (0.90 N-m)
Fuses
F1 & F2
Interface Board
Torque fuse and interface board access covers to
8 in-lb (0.90 N-m)
Fuses
F1 & F2 Interface Board
PN Description
14626 Kep nuts, 8-32NC (4)
14862 Machine screws, 8-32NC x 3/8 (12)
75068 Sealing washers (14)
15133 Lock washers, No. 8, Type A (4)
30623 Machine screws, 8-32NC x 7/16 (2)
15631 Cable ties (4–single A/D, 6–dual A/D)
15665 Reducing glands for 1/2 NPT cord grips (2)
15887 6-position screw terminal for load cell
connection (1–single A/D, 2–dual A/D)
19538 Cord grip plugs (4–single A/D, 3–dual A/D)
42350 Capacity label (1–single A/D, 2–dual A/D)
53075 Cable shield ground clamps (4)
70599 6-position screw terminals for J2 and J10 (2)
71126 4-position screw terminal for J9 (1)
71125 3-position screw terminal for J11 (1)
19433 Adhesive-backed feet (4, desktop model only)
42149 Rubber feet for tilt stand (4, universal model
only)
15144 Nylon washers for tilt stand, 1/4 x 1 x 1/16 (2,
universal model only)
68403 Wing knobs for tilt stand (2, universal model
only)
Table 2-6. Parts Kit Contents
Caution

Installation 13
2.11 Replacement Parts and Assembly Drawings
Table 2-7 lists replacement parts for the 920i desktop and universal models, including all parts referenced in
Figures 2-14 through 2-19. For assembly drawings and replacement parts information for the panel mount and
wall mount enclosures, see the 920i Panel Mount Installation Instructions, PN 69989 and the 920i Wall Mount
Installation Instructions, PN 69988.
Ref
Number PN Description (Quantity)
See Figure
Desktop Universal
1 67534 Enclosure, desktop (1) 2-14 —
67529 Enclosure, universal (1) — 2-18
2 68598 Protective lens (1) 2-14
3 67614 LCD display (1)
4 68425 Fuse access coverplate (1)
5 68621 Fuse access coverplate gasket (1)
6 67886 Standoffs, short (4)
7 68661 Standoffs, long (2)
8 70912 CPU board (1)
9 14618 Kep nuts, 4-40NC (2)
10 67613 Power supply, ±6VDC, 25W (1) 2-16
11 67536 Power supply bracket (1) 2-15
12 16861 High voltage warning label (1) 2-16
13 14624 Lock nuts, 6-32NC, nylon (2) 2-15
14 14822 Machine screws, 4-40NC x 1/4 (11) 2-14
15 67530 Interface board connector plate (1)
16 67535 Interface board gasket (1)
17 14862 Machine screws, 8-32NC x 3/8 (4)*
18 75068 Sealing washers (12)*
19 32365 Setup switch access screw, 1/4 x 20NC x 1/4 (1)
20 44676 Sealing washer for setup switch access screw (1)
21 15626 Cord grips, PG9 (3)
22 15627 Lock nuts, PCN9 (3)
23 30375 Nylon seal rings for PG9 cord grips (3)
25 15134 Lock washers, No. 8, Type A (3) 2-15 2-19
26 14626 Kep nuts, 8-32NC (3)*
27 45043 Ground wire, 4 in w/ No. 8 eye connector (1)
28 67533 Enclosure backplate, desktop (1) 2-14 —
68424 Enclosure backplate, universal (1) — 2-18
29 68622 Backplate gasket, desktop (1) 2-14 —
67532 Backplate gasket, universal (1) — 2-18
30 15631 Cable tie, 3-in nylon (1)* 2-17 2-20
31 67795 Power cord assembly, 115 VAC and 230 VAC North American units (1) 2-14 2-18
69998 Power cord assembly, 230 VAC European units (1) — —
32 67796 Power supply cable assembly, to CPU board (1) 2-14 2-19
Table 2-7. Replacement Parts

14 920i Installation Manual
33 68536 Ribbon cable to interface board, desktop (1) 2-16 —
68662 Ribbon cable to interface board, universal (1) — 2-19
34 16892 Ground/Earth label (1) 2-16 2-19
35 15650 Cable tie mounts, 3/4 in. (4) 2-15
40 53308 Model/serial number label (1) 2-14
41 68532 Single-channel A/D card (1, can be single- or dual-channel A/D) 2-17 —
68533 Dual-channel A/D card (1, can be single- or dual-channel A/D) — 2-19
43 71027 Fuses (115 VAC models), 2 A Time-Lag TR5 (2) 2-14 2-18
71026 Fuses (230 VAC models), 2 A Time-Lag TR5 (2)
44 46192 Ribbon cable clamp (2–desktop only) 2-17 —
45 67869 Interface board (1) 2-15 2-19
46 14832 Machine screws, 4-40NC x 3/8 (2)
47 22086 Machine screws, 6-32NC x 1/4 (8) 2-14 2-18
50 15628 Cord grips, 1/2 NPT (2)
52 30376 Nylon seal rings for 1/2 NPT cord grips (2)
53 15630 Lock nuts for 1/2 NPT cord grips (2)
54 70069 3V Lithium coin battery — 2-20
55 69898 Nylon spacers (4) 2-14 2-18
— 66502 Switch panel membrane (1)
* Additional parts included in parts kit.
To protect against the risk of fire, replace fuses only with same type and rating fuse.
See Section 10.13 on page 113 for complete fuse specifications.
Ref
Number PN Description (Quantity)
See Figure
Desktop Universal
Table 2-7. Replacement Parts (Continued)
Caution

Installation 15
Figure 2-14. 920i Desktop Model Assembly
22/5X
55/4X/L
16
15
K
47/8X/K E4
50/2X
BROWN WIRE
BLUE WIRE
GREEN/YELLOW WIRE
E
19
20
21/3X
23/3X
5
1
D
A
32
10
40
F
G
C
28
29 17/4X/B
18/12X/E
53/2X
9/2X
14/11X/A
8
6/4X
3
43/2X
H
31
52/2X
J
RED WIRE
7/2X
2
FROM LCD DISPLAY BOARD
TO BOTTOM OF CPU BOARD

16 920i Installation Manual
Figure 2-15. 920i Desktop Model Power Supply and Interface Board Components
CPU BOARD REMOVED
FOR CLARITY
L
45 46/2X
FROM DISPLAY BOARD TO BOTTOM OF CPU BOARD
GREEN/YELLOW WIRE FROM POWER CORD ASSEMBLY
25/3X/C
35/4X/D
27/F
26/3X/G
13/2X
11