Rice Lake CLS-920i User manual

PRESENTED BY
JPBOWLIN.COM
817.332.8116
J.P. Bowlin is a quality-driven Calibration Company
that has provided calibration, repair and sales
of all types of weighing and measurement products since 1931.

96312 Rev A
CLS-920i
920i®Cargo Lift Scale
Installation Manual

Contents
1.0 Introduction ................................................................................................................................... 1
1.1Overview............................................................................................................................... 2
1.2 Considerations Before Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2.1 CLS Classes and ID Plates .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 920i Digital HMI Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3.1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3.2 Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3.3 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.4 Indicator Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.5 Softkey Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Accepting Weight Data to the Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.0 Scale Base Installation................................................................................................................ 8
2.1 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Before Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Tools Needed to Install the CLS-920i Onto the Forklift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Scale Base Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.0 Indicator Hardware Setup.......................................................................................................... 12
3.1 Mounting the 920i Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Cable Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3 Supplying Power to the Indicator From the Forklift Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.4 Routing the Power/Serial Communications Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.5 Supplying Power to the Two-Channel iQube Using a Lithium-Ion Battery . . . . . . . . . . . . . . . . 16
3.5.1 Lithium-Ion Battery Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5.2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5.3 Charging the Lithium-Ion Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.5.4 Calibrating the Lithium-Ion Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.5.5 Battery Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.5.6 Battery Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.6 Two-Channel iQube Junction Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.7 Peripheral Scanner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.0 Configuration of Scale Parameters ........................................................................................... 22
4.1 Configuration Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1.1 iRev Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1.2 Serial Command Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1.3 Front Panel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1.4 Total Scale Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2 Menu Structures and Parameter Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2.1 SCALES Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Technical training seminars are available through Rice Lake Weighing Systems.
Course descriptions and dates can be viewed at www.ricelake.com/training
or obtained by calling 715-234-9171 and asking for the training department.
© 11/7/12 Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America.
Specifications subject to change without notice.
Rice Lake Weighing Systems is an ISO 9001 registered company.
Version 1.14, November 7, 2012 2:08 pm

ii 920i Installation Manual
4.2.2 SERIAL Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.2.3 FEATURE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.2.4 PFORMT Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.2.5 SETPTS Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.2.6 DIG I/O Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.2.7 Analog Output Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.2.8 Version Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
5.0 Configuration of User Parameters ............................................................................................. 49
5.1 PRO Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5.2 More => . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5.3 Calibration Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
5.4 Utilities Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
5.4.1 Diagnostics Softkey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
5.4.2 Cell Emulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5.4.3 Get Battery Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5.5 Supervisor Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6.0 Calibration ................................................................................................................................. 59
7.0 Daily Operation .......................................................................................................................... 61
8.0 Reports ....................................................................................................................................... 66
8.1 Report Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
8.1.1 Open PRO Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
8.1.2 Closed PRO Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
8.1.3 All PRO Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
9.0 Scanner Option .......................................................................................................................... 70
9.1 Mounting the Scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
9.2 Scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
9.3 Beeper Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
9.4 Laser Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
9.5 Scanner Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
10.0 Appendix .................................................................................................................................... 77
10.1 Two-Channel IQube Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
10.1.1 Diagnostic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
10.2 Indicator Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
10.2.1 Option Card Diagnostic Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
10.2.2 Using the HARDWARE Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
10.2.3 User Program Diagnostic Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
10.2.4 Using the XE Serial Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
10.3 Regulatory Mode Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
10.4 PS/2 Keyboard Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
10.5 Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
10.6 ASCII Character Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
10.7 Digital Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
10.8 Conversion Factors for Secondary Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
10.9 Dimension Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
10.10 920i Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Rice Lake continually offers web-based video training on a growing selection
of product-related topics at no cost. Visit www.ricelake.com/webinars.

Introduction 1
1.0 Introduction
This manual is intended for use by individuals responsible for installing the CLS-920i Cargo Lift Scale along with
the 920i HMI digital weight indicator. This manual covers information on the installation of the scale carriage,
signal cable installation (if applicable), and the installation, configuration, and calibration of the 920i HMI digital
weight indicator.
Note
While the functionality remains the same for the standard 920i HMI digital weight indicator, there are certain
menu choices found in the User Configuration section of this manual that are specific to this application.
The CLS-920i Operator Card, PN 96313 included with this manual, provides basic operating instructions for users
of the CLS-920i and the 920i HMI digital weight indicator. Please leave the operator card with the indicator when
installation and configuration is complete.
Manuals can be viewed or downloaded from the Rice Lake Weighing Systems website at
www.ricelake.com/manuals
Warranty information can be found on the website at www.ricelake.com/warranties
Safety
Safety Symbol Definitions:
Important
CAUTION
WARNING
DANGER
Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury.
Indicates a potentially hazardous situation that, if not avoided could result in death or serious injury, and
includes hazards that are exposed when guards are removed.
Indicates a potentially hazardous situation that, if not avoided may result in minor or moderate injury.
Indicates information about procedures that, if not observed, could result in damage to equipment or
corruption to and loss of data.
General Safety
WARNING
Do not operate or work on this equipment unless you have read and understand the instructions and
warnings in the Installation, Operation and Service Manuals. Failure to follow the instructions or heed
the warnings could result in injury or death. Contact any Rice Lake Weighing System dealer for
replacement manuals. Proper care is your responsibility.
Failure to heed may result in serious injury of death.
Some procedures described in this manual require work inside the indicator enclosure. These procedures are to be
performed by qualified service personnel only.
Take all necessary safety precautions when installing the scale carriage including wearing safety shoes, protective eye
wear, and using the proper tools.
DO NOT allow minors (children) or inexperienced persons to operate this unit.
DO NOT operate without all shields and guards in place.
DO NOT jump up and down on the scale.
DO NOT use for purposes other then weight taking.
DO NOT place fingers into slots or possible pinch points.
DO NOT use any load bearing component that is worn beyond 5% of the original dimension.
DO NOT use this product if any of the components are cracked.
DO NOT exceed the rated load limit of the unit.
DO NOT make alterations or modifications to the unit.
DO NOT remove or obscure warning labels.
DO NOT use near water.
Keep hands, feet and loose clothing away from moving parts.

2CLS-920i Installation Manual
1.1 O ver vie w
The CLS-920i Cargo Lift Scale is a rugged, dependable cargo lift scale that can withstand many years of repeated
use. When mounted on a forklift, the CLS-920i saves time and money. It immediately weighs the load when it is
picked up with a forklift instead of carrying the load to a floor scale.
The CLS-920i is used with Rice Lake’s 920i HMI digital weight indicator and the setup and calibration of the
indicator is discussed in detail in this manual.
Onboard Features
Features of the basic cargo lift scale include:
Features of the scale carriage include:
• NTEP approved, Class III, 5,000 lb, 1:1000
• Class II forklift with 16" cleat style carriage
• Two (2) stainless steel load cells
• Cover plate
• Mechanical overload protection
• Flexure plates with bolts welded into place
• Welded centering pin
•Viewport
• Two-channel iQube
• Wired or wireless communication
Figure 1-1. Fork Lift with CLS-920i

CLS-920i Installation Manual 3
1.2 Considerations Before Installation
While the CLS-920i Cargo Lift Scale will fit most typical forklifts, there are certain considerations that must be
taken into account prior to installing the scale. Due to the extra weight of the CLS-920i, the net lifting capacity of
the forklift is decreased by approximately 10%. Use the following formula below, to calculate the net capacity of
the unit.
NOTE: Formulas can give you a good estimate of how capacity will be affected. But you should work closely with your
forklift manufacturer before making a decision. Their data reflects, in most cases, testing with specific forklifts and
attachments.
Net Capacity = A(B + C) - D (E + F)
E + G + H
Where:
A = Truck basic capacity in pounds
B = Inches from the front wheel center line to fork face
C = Inches from fork face to truck rating point (usually 24")
D = Weight of the scale in pounds (428 lbs)
E = Inches from the front wheel center line to the carriage face
F = Inches from the carriage face to scale Horizontal Center of Gravity (HCG)
G = J + K (inches from the carriage face to rear face of load
H = Inches from fork face to new truck rating point
J = Thickness of fork
K = Thickness of scale
CAUTION
Another consideration is the indicator power source will be connected directly to the battery of the
forklift. Most typical is 12 volts for propane, gas and diesel forklifts. However, some diesel forklifts are 24
volts.
The CLS Series Cargo Lift scale will not operate on a positive ground forklift. Verify the forklift has a
negative ground electrical system. Refer to the forklift users manual to further verify grounding
requirements.
1.2.1 CLS Classes and ID Plates
During the initial sale or installation of the CLS-920i, you need to remind your customer that they must have an ID
plate on their forklift updated stating the new lifting capacity and center of gravity information. This requirement is
per OSHA rules and regulations.

4CLS-920i Installation Manual
1.3 920i Digital HMI Indicator
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 configurations.
• Four digital I/O channels on main board, each configurable as either input or output.
• Four serial ports on main board (Ports 1–4) 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.
1.3.1 Front Panel
The 920i front panel, shown in Figure 1-2, consists of a 27-button keypad with a large backlit LCD display. The
keys are grouped as five configurable softkeys, five primary scale function keys, four navigation keys, and numeric
entry keys.
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 configured for representation of a
specific application. Display contrast can be adjusted with the LCD contrast potentiometer.
13*/5
6/*54
40'5,&: 40'5,&: 40'5,&: 40'5,&: 40'5,&:
Figure 1-2. 920i Front Panel
1.3.2 Enclosures
The 920i is housed in a stainless steel enclosure that is rated for NEMA 4X/IP66.

CLS-920i Installation Manual 5
1.3.3 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
configuration is complete and a legal seal is affixed to the large fillister-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
configuration and calibration.
To enter setup mode, remove the large fillister 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
configuration menus.
1.3.4 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 configured 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
Press the CLEAR key twice to clear the accumulator.

6CLS-920i Installation Manual
1.3.5 Softkey Operations
Softkeys can be defined to provide additional operator functions for specific 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 1-2 on page 4).
The particular set of softkeys shown on the display is determined by the indicator configuration and program.
Table 1-1. Configurable Softkeys
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 the attached two channel iQUBE.
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.
1.4 Accepting Weight Data to the Indicator
The 920i can accept data in two different ways from the two-channel iQube and depending upon which version of
the CLS-920i is purchased, will come with different components. They are:
• Wired - Coil Cable
Figure 1-3. Coil Wired Signal Cable That Runs Between the 920i Indicator and the Two-Channel iQube
• Wireless - Attached onto the back of the 920i HMI digital weight indicator and collects data from the
two-channel iQube without the use of a coil wire cable but instead uses a lithium-ion battery which is
housed on the scale itself for power.

Wireless
communication
between the 920i
indicator and the
two-channel iQube
which is located on the
forklift and is powered
by a lithium-ion battery
housed in a battery box.
CLS-920i Installation Manual 7
Figure 1-4. Wireless Version of Communication

8CLS-920i Installation Manual
2.0 Scale Base Installation
This section describes procedures for installing the CLS-920i scale base.
WARNING
Take all necessary safety precautions when installing the scale carriage. including wearing safety shoes,
protective eyewear and using the proper tools which are listed in Section 2-3.
The CLS-920i Cargo Lift Scale is shipped from the factory with the scale already calibrated to the indicator.
Minimal recalibration and adjustments might be necessary once the scale is installed onto the forklift. Those
calibration steps are contained in Section 6.0.
2.1 Unpacking
The CLS-920i Cargo Lift Scale is shipped upright on a sealed pallet as shown in Figure 2-1.
Component
parts inside of
box
Figure 2-1. CLS-920i Packaging
Upon receipt of the shipping pallet, inspect it for any visible signs of damage. Immediately after unpacking,
visually inspect the contents to ensure all components are included and undamaged. The shipping pallet should
contain the following:
• One (1) scale carriage assembly with cover plate
• Indicator component box which includes the following:
- One (1) electronic indicator with mounting bracket and hardware
- One (1) power cable
- CLS-920i Cargo Lift Installation manual
• Hardware component box which includes the following:
- Two (2) cleats with four bolts
- Cage clamp mounting assembly and hardware
- Two (2) lithium-ion batteries (wireless version)
- Two-bay battery charger (wireless version)
- Coiled interface cable (wired version)
Note
To ensure that all products received from the manufacturer are in good shape upon arrival, it is recommended
to fully inspect all contents and properly fill out the bill of lading.
If any parts were damaged in shipment, notify Rice Lake Weighing Systems and the shipper immediately.

CLS-920i Installation Manual 9
2.2 Before Installation
Before installing the CLS-920i on a forklift, the forklift should be in good operating condition in order to get the
optimal amount of weighing accuracy. The following items are things to look for prior to installing the CLS-920i
onto a forklift:
• Inspect the forklift tines for any damage.
• Check the locking pin on the forks for proper function.
• Check and adjust the lift chain so the heel of the forks have a 1/2" to 1" of clearance from the floor when the
carriage is down and the mast is vertical.
• The slot for the centering pin should be clear of grease and debris.
• The top cleats of the scale rest on top of the forklift and should remain clear of grease and debris that could
alter the scales’ performance.
It should be noted that while Rice Lake’s CLS-920i will fit most typical forklifts, some considerations must be
note. The height of the carriage, width of the carriage inside of the guards, if applicable, and the voltage of the
forklift must be taken into consideration.
The indicator will be connected directly to the battery of the forklift. Ensure the type and style of the forklift and
the type of power it provides will be compatible with the indicator. Most propane, gas, and diesel fueled forklifts
provide 12 volts of power. Some diesel models also provide 24 volts and electric forklifts provide 36 to 48 volts of
power.
Note
All systems must have a negative ground.
2.3 Tools Needed to Install the CLS-920i Onto the Forklift
Once the forklift is deemed in good mechanical and operating condition, you’ll need the following tools to remove
it from its shipping pallet and install onto the forklift.
Table 2-1. Recommended Tools for Unpacking the CLS-920i
Tool Size Purpose of Tool
Socket Wrench 3/4" To unbolt the fastening bolts holding the scale to the pallet and to
open the top cover plate for wired versions
Allen Wrench 1/2" To bolt and unbolt the bottom cleats of the scale
Wrench - 2" adjustable 1- 1/2"*
1-5/8"*
For adjusting the shim bolts and jam nuts
*Note: Use a 2" adjustable as both the shim bolts and jam nuts are
painted and a smaller wrench wouldn’t fit.
Tin Snips or Band Cutters To cut the metal banding surrounding the CLS while on the pallet
Torque Wrench w/ 1/2" Allen To tighten the cleats to 125 ft-lbs
Electric Grinder - if necessary For grinding the center pin if necessary

10 CLS-920i Installation Manual
2.4 Scale Base Installation
The scale and indicator are shipped in an upright position as illustrated in Figure 2-2 and is enclosed in a protective
wood cover. The upright position allows for ease of installation, especially if one person is installing the scale.
Step 1: Clip
metal bands
with band cutter
Protective
wood covering
Protective wood
enclosure for
indicator
Steel shipping
pallet
Figure 2-2. Scale Component Parts on Shipping Pallet
Use the following steps to install the scale base to the forklift.
1. Clip the three metal bands that are encircling the scale and component box on the backside of the pallet
(shown in Figure 2-2) and also remove the protective wood pieces which protect the sides of the scale.
2. Remove the wooden cover containing the indicator. It should be noted that there are two screws holding
the indicator to the shipping pallet. Back those two screws out to remove the indicator.
3. Loosen the bolts from the scale carriage assembly and back them out using a 3/4" socket wrench. The nuts
holding the bolts on the backside of the scale are welded onto the scale which requires the use of only one
socket wrench. This is what holds the scale in an upright position.
Step 2: Remove
wooden cover
containing
indicator
Step 3: Back out
anchoring bolts using
3/4" socket wrench and
discard bolts
Step 4: Remove
front portion of
steel pallet.
Figure 2-3. Bolt Location on Pallet
4. Remove the front portion of the steel pallet that the scale is sitting on.

Shim bolt hole
location
Anti-shift centering pin
Top cleat location
CLS-920i Installation Manual 11
Figure 2-4. Removal of Steel Pallet and Top Cleat Locations
5. Verify that the shim bolts are flush with the back plate of the scale. Not doing so will place the entire scale
out of alignment when attaching it onto the forklift and will make it difficult to make final adjustments
once the scale is mounted to the forklift.
6. Seal the two-channel iQube if it is to be used in Legal-For-Trade applications.
7. Making sure the forklift tines are removed from the forklift, move the forklift in close to the pallet and
scale.
8. Carefully and slowly raise the scale carriage slightly so the top cleats (cleat location shown in Figure 2-4)
of the scale hook onto the forklift carriage.
9. Ensure that the anti-shift centering pin on the scale assembly is aligned with the center notch on the forklift
carriage.
WARNING
Note
The scale’s centering pin should be aligned with the middle notch of the truck carriage. Verify that the
centering pin is adjusted so that the pin is located well within the center notch area of the carriage. The
centering pin should not touch the bottom of the notch on the original carriage, as this will cause side to side
tilting of the scale. The outside top cleats provide support to the scale assembly and the centering pin only
helps to position the scale on the forklift carriage. The centering pin should not bear any weight. If it does, the
use of a grinder to grind down the centering pin will remedy that.
10. Tilt the mast forward to catch the scale assembly and carefully raise the carriage to a comfortable working
position.
11. Attach the bottom cleats to the bottom of the scale assembly (see Figure 2-5), so that the lip of the cleat is
behind the original carriage.
12. Torque the bottom cleat retaining bolts to 125 ft-lbs (shown in Figure 2-5 for bottom cleat location).
Failure to properly torque the safety plate retaining bolts may result in bodily harm or damage to
equipment.
13. Next, adjust the shim bolts so that they are adjusted for minimal clearance between the bottom cleats and
the scale carriage. This clearance needs to be .020 inch thickness and can be measured by using a feeler
gauge.
14. Tighten the shim bolt jam nuts and verify their clearances as shown in Figure 2-5.

Illustration shown is
with part of the
flexure removed to
show shim bolt
location.
Scale carriage
Shim bolts
Bottom
cleat
retaining
bolts
Bottom cleat
Insert a feeler gauge to
measure a .020 inch
thickness between bottom
cleat and scale carriage.
12 CLS-920i Installation Manual
Figure 2-5. Bottom Cleat Location and Assembly
15. Now reattach the forklift tines to the scale assembly by attaching them in the center of the scale and sliding
them off to the sides.

CLS-920i Installation Manual 12
3.0 Indicator Hardware Setup
3.1 Mounting the 920i Indicator
Location of the indicator is a matter of operator preference and should be installed in a location that allows for free
vision.
The universal mounting bracket which is included (shown in Figure 3-1 with the optional bar code scanner),
enables the indicator to be mounted to the safety cage using the supplied hardware.
Figure 3-1. CLS Mounting Bracket
The indicator tilt position is adjustable by using a wrench so you can pick the best viewing angle for the operator.
Vibration isolators are also included in the supplied mounting bracket hardware. This cushions the indicator from
vibration. These vibration isolators are shown below in Figure 3-2.
Vibration
Isolators
Figure 3-2. Vibration Isolator Control Location

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3.2 Cable Connections
The 920i indicator provides four cord grips and two MIL-C connectors for cabling into the indicator. The free cord
grips come with a plug installed to prevent moisture from entering the enclosure.
Figure 3-3 shows the assignments for the 920i cord grips.
MIL-C
power
Wireless LAN
- optional
To scanner -
optional
To wireless
transceiver
On/Off
power
toggle
Wired
version plug
Figure 3-3. 920i Cord Grip Assignments
3.3 Supplying Power to the Indicator From the Forklift Battery
CAUTION
The indicator power source will be connected directly from the battery of the forklift. Most
typical is 12 volts for propane, gas, and diesel forklifts. However, some diesel forklifts are 24
volts.
The CLS series cargo lift scale will not operate on a positive ground forklift. Verify the forklift has a
negative ground electrical system.
Refer to the forklift users manual to further verify grounding requirements.
There is a supplied on/off power toggle switch which manually cuts power from the battery of the forklift. This
way there won’t be any additional draw on the battery when the scale is not in use.
On/off toggle switch
location on 920i
Figure 3-4. Toggle Switch Location

CLS-920i Installation Manual 14
The indicator draws its power from the forklift battery. After the indicator is mounted, run the power cable along
the forklift chassis down to the forklift battery.
Run power cable along
chassis to the forklift
scale battery
Figure 3-5. Run Power Cable to the Forklift Battery
Note
DO NOT plug in the power connector into the bottom of the indicator until power hookup is completed.
A supplied in-line fuse is also included with the CLS-series cargo lift scale. The fuse comes enclosed in an in-line
fuse holder (shown in Figure 3-6) and is attached where the stripped termination of the wires is located.
Replacement of the in-line fuse is described in the CLS-series Service manual if needed.
Figure 3-6. Inline Fuse
Attach the three stripped wires to the forklift battery using the following wire code.
Table 3-1. Power Hookups to Forklift Battery
Wire Color Signal
Red Positive on Battery
Black Negative on Battery
Blue Ground/Chassis
Note
Supplied termination hardware includes (3) 1/4" eyelits for 1/4" bolts..