Rice Lake CLS-420 User Manual

CLS-420

420 Cargo Lift Scale

Version 1.15

Installation Manual

96483 Rev A

Contents

About This Manual ................................................................................................................................... 1

Safety ....................................................................................................................................................... 1

1.0 Introduction.................................................................................................................................. 2

1.1 Scale Carriage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2 Considerations Before Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2.1 CLS Classes and ID Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 420 Digital Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3.1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3.2 LED Annunicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3.3 Indicator Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3.4 Modes of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.4 Accepting Weight Data to the Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.0 Scale Base Installation................................................................................................................ 7

2.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Before Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Tools Needed to Install the CLS-420 Onto the Fork Truck or Mobile Lift. . . . . . . . . . . . . . . . . . . . . . . 8

2.4 Scale Base Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.0 Indicator Hardware Setup.......................................................................................................... 12

3.1 Mounting the 420 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.5 Supplying Power to the Two-Channel iQube Using a Lithium-Ion Battery . . . . . . . . . . . . . . . . . . . . . 15

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.5.5 Battery Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.5.6 Battery Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.6 Two-Channel iQube Junction Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.0 ABF Version .................................................................................................................................. 7

4.1 ABF Version Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1.1 Mount Kit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1.2 Rear Cover - External Connections:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.1.3 Installed WLAN Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.1.4 Default Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.1.5 Supplying power to the carriage J-box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.2 Special Matchport Firmware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2.1 420 Core Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.0 Configuration ............................................................................................................................. 22

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.

© 2012 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 2012

i

5.1 Configuration Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1.1 EDP Command Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1.2 Front Panel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.2 Menu Structures and Parameter Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.2.1 Configuration Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.2.2 Format Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.2.3 Calibration Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.2.4 SERIAL Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.2.5 Program Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.2.6 Accumulate Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.2.7 Setpoint Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.2.8 Digital Input Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.2.9 Analog Output Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.2.10 Version Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.0 Calibration ................................................................................................................................. 38

6.1 Front Panel Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.0 Repair Parts List......................................................................................................................... 39

8.0 Appendix .................................................................................................................................... 40

8.1 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8.1.1 Displayed Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8.1.2 Using the XE EDP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.2 Status Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.2.1 Using the P EDP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.2.2 Using the ZZ EDP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.3 Continuous Output (Stream) Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8.4 ASCII Character Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

8.5 Front Panel Display Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

8.6 Conversion Factors for Secondary Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8.7 Digital Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

8.7.1 DIGFLx Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

8.7.2 DFSENS and DFTHRH Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

8.7.3 Setting the Digital Filter Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8.8 Analog Output Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8.9 Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

8.10 Regulatory Mode Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8.11 LED Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8.12 420 Indicator Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

CLS-420 Digital Indicator Limited Warranty ......................................................................................... 52

DAILY INSPECTION CHECKLIST FOR LIFT TRUCK SCALE USERS........................................................................................... 53

Rice Lake continually offers web-based video training on a growing selection

of product-related topics at no cost. Visit www.ricelake.com/webinars.

ii CLS-420 Installation Manual

About This Manual

This manual is intended for use by individuals responsible for installing the CLS-420 Cargo Lift Scale along with
the 420 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 420 digital weight
indicator.

While the functionality remains the same for a standard 420 digital weight indicator, there are certain menu

Note

choices in the configuration section of this manual specific to this application.

The CLS-420 Operator Card, PN 96484 included with this manual, provides basic operating instructions for users
of the CLS-420 and the 420 indicator. Please leave the operator card with the indicator when installation and
configuration is complete.

Safety

Safety Symbol Definitions:

DANGER

WARNING

CAUTION

Important

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

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.

WARNING

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.

CLS-420 Installation Manual 1

1.0 Introduction

The CLS-420 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-420 saves time and money by allowing you to weigh loads immediately
instead of carrying the load to a floor scale.

The CLS-420 scale carriage comes in three different sizes including a 34", 36" and a 38" carriage.
The CLS-420 is used with Rice Lake’s 420 digital weight indicator and setup and calibration of the indicator is

discussed in detail in the following sections.

On board Features

Features of the basic cargo lift scale include:

1.1 Scale Carriage

• NTEP approved, Class III, 5,000 lb, 1:1000

• Class II forklift, with 16" cleat style carriage

• NTEP approved, Class III, 8,000 lb, 1:1000 (38" only)

• Class III forklift with cleat style carriage (38" only)

• Two (2) stainless steel load cells

• Mechanical overload protection

• Flexure plates with bolts welded into place

• Cover plate

• Welded centering pin

• View port

• Two-channel iQube

• Wired or wireless communication

®

2 CLS-420 Installation Manual

Figure 1-1. Fork Lift with CLS-420

1.2 Considerations Before Installation

While the CLS-420 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-420, the net lifting capacity of
the forklift scale is decreased by approximately 10%. Use the formula below to calculate the net capacity of the
unit.

Formulas can give you a good estimate of how capacity will be affected. You should work closely with your

Note

forklift manufacturer before making a decision. Their data reflects, in most cases, testing with specific forklifts
and attachments.

Net Capacity =

E + G + H

Where:
A = Truck basic capacity in pounds

B = Inches from the front wheel center line to fork face
C = Inches from the fork face to the 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 the rear fact of load)
H = Inches from fork face to new truck rating point
J = Thickness of fork
K = Thickness of scale

A(B + C) - D (E + F)

CAUTION

1.2.1 CLS Classes and ID Plates

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.

12 and 48 volt systems must have a negative ground so ensure the forklift has a negative ground
electrical system. The CLS Series Cargo Lift Scale will not operate on a positive ground forklift. Refer to
the forklift users manual to further verify grounding requirements.

During the initial sale and installation of the CLS-420, 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.

CLS-420 Installation Manual 3

1.3 420 Digital Indicator

The 420 is a single-channel serial weight indicator housed in a NEMA 4X/IP66-rated stainless steel enclosure. The
indicator front panel consists of a large (1.8 in, 44.5 mm), six-digit, seven-segment LED display and 21 button
keypad.

Features of the standard CLS-420 include:

• Two configurable digital inputs and two configurable outputs

• Electronic data processing (EDP) port dedicated to communication with the two-channel iQube in forklift
applications.

• Printer port for full duplex RS-232 or active transmit only 20 mA current loop communications at up to
38400 bps

• NTEP certified

• 9-36 VDC input - VDC range of new power supply

• The setpoint key on the indicator can be used for wireless versions to display battery hours remaining.

1.3.1 Front Panel

Figure 1-2 shows the 420 LED annunicators, keypad, and normal mode key functions.

(SPTT

108&3

*0

/FU

;&30 (3044

/&5

%*41-":

5"3&



5"3&

&/5&3.0%& 4".1-&

4&510*/5 5*.&%"5&

6/*54 13*/5

  

$-3

MC

LH

$PVOU

   

Figure 1-2. 420 Front Panel, Showing LED Annunicators and Normal Mode Key Functions

The symbols shown above the keys (representing up, down, enter, left, right), describe the key functions assigned
in setup mode. In setup mode, the keys are used to navigate through menus, select digits within numeric values and
increment/decrement values.

The 420 also has a

WARNING

Power key. Use the Power key to turn the indicator on or off.

The 420 has an off/off switch for the processor functions. Before opening the unit, ensure the 420 is
disconnected from the forklift battery power source.

4 CLS-420 Installation Manual

1.3.2 LED Annunicators

The 420 display uses a set of six LED annunicators to provide additional information about the value being
displayed:

Gross and Net annunciators are lit to show whether the displayed weight is a gross or net weight.

•

• Center of zero (

): Gross weight is within 0.25 graduations of zero. This annunciator lights when the

scale is zeroed.

• Standstill (

): Scale is at standstill or within the specified motion band. Some operations, including tare

functions and printing, can only be done when the standstill symbol is shown.

lb and kg annunciators indicate the units associated with the displayed value: lb=pounds, kg=kilograms.

•
The displayed units can also be set to short tons (tn), metric tons (t), ounces (oz), grams (g), or NONE (no

units information displayed). The

lb and kg LEDs function as primary and secondary units annunciators for

some combinations of primary and secondary units. If neither primary nor secondary units are lb or kg the lb
annunciator is lit for primary units, kg for secondary units.

Table 1-1 shows which annunciators are used for all combinations of configured primary and secondary units. For
example:

• If the primary unit is pounds (lb) and the secondary unit is kilograms (kg), the

lb LED is lit for primary

units, kg for secondary units.

• If the primary unit is pounds (lb) and the secondary unit is short tons (tn), the

lb LED is lit for primary

units, kg for secondary units. There is not an LED for short tons, so the kg LED is used as the secondary
units annunciator.

• If the primary unit is short tons (tn) and the secondary unit is pounds (lb), the

lb LED is lit for primary units

(tn), and kg is lit for secondary units (lb). Because there is no LED for short tons, the lb and kg LEDs are
used as primary and secondary units annunciators.

Secondary Unit

Primary Unit

lb lb / lb lb / kg lb / oz lb / g lb / kg
kg kg / lb kg / kg kg / oz kg / g lb / kg
oz oz / lb oz / kg oz / oz oz / g oz / kg

g g / lb g / kg g / oz g / g g / kg

tn lb / kg lb / kg lb / oz lb / g lb / lb lb / kg lb / kg

t lb / kg lb / lb lb / kg

none lb / kg lb / kg lb / lb

lb kg oz g tn t none

Table 1-1. Units Annunciators, Showing Primary / Secondary LEDs Used for All Configurations

1.3.3 Indicator Operations

Basic 420 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.

Gross mode is shown by the

Toggle Units

Gross annunciator; net mode is shown by the Net annunciator.

Press the UNITS key to switch between primary and secondary units. The appropriate units LED under the display
is lit.

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.

CLS-420 Installation Manual 5

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. Net weight is displayed and net annunciator

is lit.

Remove Stored Tare Value

1. Remove all weight from the scale and wait for the standstill annunicator.

2. Press the

Set Date

TARE key. The Gross annunicator is lit.

In the front panel setup mode, use the arrow keys to toggle to DATE. Press the Down arrow or Enter to enter the date
in the format configured for the indicator.

Set Time

In the front panel setup mode, use the arrow keys to toggle to TIME. Press the Down arrow or Enter to enter the time
in 24-hour format, then press the Enter key to save that value.

Display Accumulator

Hold the (MODE) GROSS/NET key for three seconds to display the accumulated valued if enabled in configuration.
The accumulated value will be displayed for about 10 seconds. To clear the accumulator, press the CLR key twice
while the accumulated value is being displayed.

1.3.4 Modes of Operation

The 420 has four modes of operation:

Normal (Primary) mode

Normal mode is the “default” mode of the indicator. The indicator displays gross or net weights as required,
using the LED annunciators described in Section 1.3.2 on page 5 to indicate scale status and the type of weight
value displayed. Once configuration is complete and a legal seal is affixed to the back of the indicator, this is
the primary mode in which the 420 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 setup screw and insert a small screwdriver pressing the setup switch once.
The indicator display changes to show the word

Test mode

CONFIG.

Test mode provides a number of diagnostic functions for the 420 indicator. Like setup mode, test mode is
entered using the setup switch. See Section 8.9 on page 49 for more information about entering and using test
mode.

NOTE: Test mode is intended for factory and technician use only.

Front Panel Setup Mode

Hold the UNITS key for three seconds to enter front panel setup mode. Use front panel setup to change setpoint
and to set the time and date.

Note

This can be done without breaking the seal.

6 CLS-420 Installation Manual

1.4 Accepting Weight Data to the Indicator

The 420 indicator can accept data in two different ways from the two-channel iQube and depending upon which
version is purchased, will come with different components. They are:

• Wired - coil cable

Figure 1-3. Coil Wired Signal Cable That Runs Between the Indicator and the Two-Channel iQube

• Wireless - attached onto the back of the 420 indicator and collects data from the two-channel iQube
without the use of a coil wire cable. The two-channel iQube uses a lithium-ion battery which is housed
on the scale.

Wireless
communication
between the
indicator to the two
channel iQube which
is located on the
forklift and is
powered by a
Lithium-Ion battery
housed in a battery
box.

Figure 1-4. Wireless Version of Communication

CLS-420 Installation Manual 7

2.0 Scale Base Installation

This section describes procedures for installing the CLS-420 scale base.

WARNING

The CLS-420 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 fork lift. Those
calibration steps are contained in Section 6.1.

2.1 Unpacking

The CLS-420 Cargo Lift Scale is shipped upright on a sealed pallet as shown in Figure 2-1.

Component
parts inside of
box

Take all necessary safety precautions when installing the scale carriage, including wearing safety shoes
and protective eyewear, and using the proper tools which are listed in Section 2.3.

Figure 2-1. CLS-420 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:

• One (1) electronic indicator with mounting bracket and hardware

• One (1) power cable

• CLS-420 Cargo Lift Scale installation manual

• Hardware Component Box which includes:

• Two (2) cleats with four bolts

• Cage clamp mounting assembly and hardware

• One (1) coiled interface cable (for the wired version)

• Two (2) lithium-ion batteries (for the wireless version)

• Two-bay battery charger (for the wireless version)

To ensure that all products received from the manufacturer are in good shape upon arrival, it is recommended

Note

to fully inspect all contents and properly fill out the bill of lading.

If any parts were damaged in shipment, notify the shipper immediately.

7 CLS-420 Installation Manual

2.2 Before Installation

Before installing the CLS-420 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-420
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 1/2" to 1" of clearance from the floor when the
carriage is down and the mast is vertical.

• The slot for the center pin should be clear of grease and debris.

• The top cleats of the forklift rest on the top of the scale and should remain clear of grease and debris that
could alter the scales’ performance.

It should be noted that while Rice Lake’s CLS-420 will fit most typical forklifts, some considerations must be
noted. The height of the carriage, width of the carriage inside of the guards, if applicable and voltage of the fork
truck must be taken into consideration.

The indicator will be connected directly to the battery of the fork truck. Ensure the type and style of fork truck and
the type of power it provides will be compatible with the indicator. Most propane, gas, and diesel fueled fork trucks
provide 12 volts of power. Some diesel models also provide 24 volts and electric fork trucks provide 36 to 48 volts
of power. The CLS-series scales work with 12-36 VDC power source.

Important

All systems must have a negative ground.

2.3 Tools Needed to Install the CLS-420 Onto the Fork Truck or Mobile Lift

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.

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"*

Tin snips or band cutters To cut the metal banding surrounding the CLS while on the pallet
Torque wrench w/ 1/2" Allen 1/2" To tighten the cleats to 125 ft-lbs
Electric Grinder - if necessary For grinding the center pin if necessary

Table 2-1. Recommended Tools for Unpacking the CLS-420

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.

CLS-420 Installation Manual 8

2.4 Scale Base Installation

The scale and indicator are shipped in an upright position as illustrated in Figure 2-2 and are 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

Protective wood

Protective wood
enclosure for
indicator

Figure 2-2. Scale Component Parts on Shipping Pallet

Use the following steps to install the scale base to the fork lift.

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.

covering

Metal banding

Steel shipping pallet

Step 3: Back out
anchoring bolts using
3/4" socket wrench
and discard the bolts

Step 4: Remove front
portion of the steel
pallet

Figure 2-3. Bolt Location on Pallet

4. Remove the front portion of the steel pallet that the scale is sitting on. It will break away from the rest of
the pallet.

9 CLS-420 Installation Manual

Anti-shift centering
pin

Top cleat
location

Shim bolt
hole location(s)

Figure 2-4. Removal of Steel Pallet and Top Cleat Location

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 the anti-shift centering pin on the scale assembly is aligned with the center notch on the forklift
carriage.

The scale’s centering pin should be aligned with the middle notch of the truck carriage. Verify that the

Note

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 help 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 scale carriage.

12. Torque the bottom cleat retaining bolts to 125 ft-lbs (shown in Figure 2-5 for bottom cleat location).

WARNING

Failure to properly torque the bottom 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.

CLS-420 Installation Manual 10

Illustration shown is
with part of the
flexure removed to
show shim bolt
location.

Insert a feeler gauge to measure a
.020 inch thickness between
bottom cleat and scale carriage.

Shim bolts

Scale carriage

Bottom cleat
retaining bolts

Bottom cleat

Figure 2-5. Bottom Cleat Location and Assembly

14. 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.

11 CLS-420 Installation Manual

3.0 Indicator Hardware Setup

3.1 Mounting the 420 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), 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.

Vibration Isolators

Rear Side of
Indicator

Figure 3-2. Vibration Isolator Control Location

To permanently lock the indicator mounting bolts, Rice Lake Weighing Systems recommends using

Note

Locktite 262

CLS-420 Installation Manual 12

3.2 Cable Connections

The 420 indicator provides two cord grips and two MIL-C connectors for cabling into the indicator: The free cord
grip comes with a plug installed to prevent moisture from entering the enclosure.

Figure 3-3 shows the assignments for the 420 cord grips.

Front of
indicator

RS-232 if used

(plugged)

Setup switch
access screw

Bottom View

Wireless

scale

indicator

transiever

Wired scale

connection

(not wired for the

wireless version)

MIL-C power

cable connecting to

forklift battery

Backplate

Figure 3-3. 420 Rear of Indicator

3.3 Supplying Power to the Indicator From the Forklift Battery

CAUTION

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.

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.

12 and 48 volt systems must have a negative ground so ensure the forklift has a negative ground
electrical system. The CLS series cargo lift scale will not operate on a positive ground forklift.

Refer to the forklift user’s manual for further verify grounding requirements.

DO NOT plug in the power connector into the bottom of the indicator until power hookup is completed.

Note

13 CLS-420 Installation Manual

Run power cable along
chassis to the forklift
scale battery

Figure 3-4. Run Power Cable to the Forklift Battery

A supplied in-line fuse is also included with the CLS-series cargo lift scale. The fuse comes enclosed in an in-line
fuseholder (shown in Figure 3-5) 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 3-5. Inline Fuse

Attach the three stripped wires to the forklift battery using the following wire code

Note

Supplied termination hardware includes (3) 1/4" eyelets for 1/4" bolts.

Wire Color Signal

Red Positive on Battery

Black Negative on Battery

Blue Chassis Ground

Table 3-1. Power Hookups to Forklift Battery

3.4 Routing the Power/Serial Communications Cable

Special care should be taken when routing the power/serial communications cable (if the standard coil wired
version is used). To ensure that the signal cable is installed properly and away from situations that could cause it

harm use the following steps.

1. Mount the indicator to the forklift per instructions in Section 3.1.

2. Lay the coiled up signal cable along the route between the indicator and the forklift scale.

Figure 3-6. Power/Serial Communications Cable

The preferred route is through the center of the mast. If it has a three stage mast, route alongside the mast as

Note

shown in Figure 3-7.

CLS-420 Installation Manual 14

Power/serial
communications
cable

Figure 3-7. Signal Cable Located Between the Scale and the Indicator

3. Secure with cable ties at the bottom of the scale and at the top of the mast.

4. Slowly and carefully extend the mast to all positions to confirm that the cable isn’t pulled too tight or that
there are no pinch points along the way.

5. Check for proper signal cable clearance as the side shifter (if used), is moved back and forth.

6. DO NOT plug the power connector into the bottom of the indicator until power hookup is
completed.

3.5 Supplying Power to the Two-Channel iQube Using a Lithium-Ion Battery

If using a wireless version of the CLS-420, the CLS scale uses a supplied lithium-ion battery to supply power. The
wireless version of the CLS-420 does not come with a coiled cable. The lithium-ion battery is located on the top of
the cover plate in a painted enclosure.

15 CLS-420 Installation Manual

Battery box

Figure 3-8. Lithium-ion Battery Location

3.5.1 Lithium-Ion Battery Specifications

Nominal Capacity 6600 mAh
Nominal Voltage 11.1 V
Charging Method Constant Current

Constant Voltage
Charging Voltage 12.6 V
Charging Current 4.0 A
Charging Time 100% @2.5 hours
Ambient Temperature Charge 0° - +40°C

Discharge -20° - +60°C
Storage -20° - +50°C

Weight (Maximum) 430 g
Dimensions (Maximum) Depth 22.80 mm

Length 214.0 mm
Volumetric Energy Density 466 Wh/I
Gravimetric Energy Density 167 Wh/kg
Maximum Hours of Charge 8

Table 3-2. Battery Specifications

3.5.2 General Precautions

There are some general precautions that should be taken when handling lithium-ion batteries.

Handling

• Do not short circuit

• Do not immerse in water

• Do not disassemble or deform battery

• Keep away from excessive heat (+100

°C) or dispose of battery in fire

• Avoid excessive physical shock or direct vibration

• Keep out of reach of children

• Never use a battery that appears to have suffered abuse

• Do not crush or attempt to disassemble the battery

Charge and Discharge

• Battery must be charged in an appropriate charger only

• Never use a modified or damaged charger

• Specified product use only

Storage

• Store in a cool, dry and well ventilated area

Disposal

• Regulations vary for different countries. Dispose of in accordance with local regulations

CLS-420 Installation Manual 16

3.5.3 Charging the Lithium-Ion Battery

The lithium-ion battery comes with a two-bay, level-3 stand alone smart battery charger, a DC power jack, and a
AC power cord as shown in Figure 3-9.

To calibrate the
battery pack,
press the button
on front label.

See Section

3.5.4

Figure 3-9. Two-Bay Battery Charger and Parts for the Lithium-Ion Battery

The average charge time for the battery is three hours each.
Use the following steps to charge the battery prior to use:

1. Insert the plug end of the power cable into the DC power jack on the battery charger and the AC plug into
an outlet.

2. Insert battery into the bay.

3. There is one LED indicator in front of each bay which will illuminate to indicate the status of the battery as
follows:

Signal Description

Off No Battery
Green Flashing Fast Charging
Green Solid Fully Charged
Yellow Flashing Recalibrating
Yellow/Green Alternating Recalibrating
Yellow Solid Standby
Red Flashing Error

Table 3-3. Battery Charging LED Signals

3.5.4 Calibrating the Lithium-Ion Battery

In order to keep the battery fuel gauge as accurate as possible, it is necessary to occasionally run the pack through a
recalibration cycle. To do this, place the battery in the left bay of the charger and press the button on the front label
(see Figure 3-9). This will initiate the recalibration sequence in the left bay only. The process can take up to nine
hours to complete and a recommended recalibration should be done once quarterly to keep the battery accurate.

17 CLS-420 Installation Manual

3.5.5 Battery Removal

The lithium-ion battery itself is housed inside of the battery box and is encased in a foam core protecting it from
vibration.

Figure 3-10. Lithium-ion Battery Box Opened

Figure 3-11 shows how to pull the lithium-ion battery out of the battery box.

Figure 3-11. Pulling the Lithium-ion Battery Out

If the battery is not put back into the battery box correctly or the battery is not functioning correctly, the following
error message is displayed on the 420 indicator.

Figure 3-12. Comm Error Message

The forklift operator can find out how many hours are left in the battery by pressing the setpoint key on the 420
indicator. The following screen is displayed pointing out the number of hours remaining.

Figure 3-13. Battery Hours Remaining

CLS-420 Installation Manual 18

3.5.6 Battery Disposal

When using Lithium-ion batteries, be sure to observe the following precautions for disposal as stated in the
material safety data sheet regarding lithium-ion batteries.

19 CLS-420 Installation Manual

3.6 Two-Channel iQube Junction Box

The two-channel iQube sits in an area between the front and back plate of the scale itself providing protection for
the junction box. The two-channel iQube comes from the factory pre-wired and no additional work needs to be
done to it other than sealing the iQube for Legal-For-Trade applications. Should the user need to replace load cells,
then additional information on wiring is located in the CLS-Series Service manual, PN 96314.

Location of
the two
channel
iQube

Figure 3-14. Location of Two-Channel iQube on CLS-Series Scale

CLS-420 Installation Manual 20

4.0 ABF Version

4.1 ABF Version Differences

4.1.1 Mount Kit Assembly

(PN 131630)

Figure 4-1. ABF Version Indicator

Mount Plate (121003)

Isolation Bumper (98537)

Bolt (14984)
Locknut (14634)
Bonded Washer (45042)

Side Bracket (121004)

Bolt (21948)
Lock Washer (15144)

Figure 4-2. Mounting the Indicator

• Two mount plates (121003) used to clamp the indicator to the forklift frame.

• Two side brackets (121004) are mounted to one of the plates with:

Four (4) isolation bumpers (98537)
Four (4) 1/4-20NC x 1-3/4 bolts (14984)
Four (4) 1/4” lock nuts (14634)
Eight (8) bonded washers (45042)

• Side brackets are attached to each side of the indicator with 1/4” x 5/8” long bolts (21848) and lock

washers (15144).

• Standard plastic washers (15144) are used between the brackets and the indicator.

7 CLS-420 Installation Manual

WLAN Antenna

Power cord
connection

4.1.2 Rear Cover - External Connections:

• All connections come out the back.

• There is a single cord grip with a WLAN antenna mounted in it. The grip can be loosened and the

antenna position as needed. If needed, the antenna can be pulled out far enough to expose its joint, at
which time the antenna can be angled as needed

Note

If the joint is exposed, the enclosure will not be as environmentally protected.

• An additional connector is also included to allow a wired Ethernet connection to the internal WLAN

board.

If an Ethernet connection is made before the unit is powered on, the WLAN board will revert to a wired mode,

Note

allowing configuration via DeviceInstaller over an Ethernet network before placing it in service on a wireless
network. See Section 4.2.

• A small slotted screw located in the upper right corner above the Ethernet jack. Behind this screw is a

switch used to reset the WLAN module to factory defaults. See Section 4.1.4.

WLAN option card
default switch access

Ethernet Jack

Coiled interface cable
connection

Figure 4-3. Indicator Back View

Note

For sealing purposes, this screw DOES NOT need to be sealed.

Power Connection Coiled Cable Connection

Pin Pin

A Battery Positive 10-36V A +V (7.5v)
B Battery Negative B GND
C Chassis Ground D RXD

Table 4-1. Cable Pinouts

E TXD
F GND

CLS-420 Installation Manual 8

Figure 4-4. Inside the Indicator

4.1.3 Installed WLAN Interface

For use with ABF CLS 420i and Mega 8 indicators only.

• The board is mounted to the 420 CPU board in place of the Analog Output module.

• The WLAN Port 1 serial connection connects to the Printer port on the 420 CPU board.

• The power connections to the to the WLAN board go directly to the Power Supply.

• Power for the WLAN option board is controlled by a connection between the +5V digital output

connection on the CPU board tot he REM connection on the WLAN option board.

Note

The WLAN option board power jumper must be in the REM position.

• The Wired Ethernet jack on the WLAN board is connected to a jack on the back panel for use with

initial configuration.

Run the Lantronix DeviceInstaller program on the company network.
When a new indicator arrives, it is connected to the Ethernet network and turned on.
The WLAN card recognizes the Ethernet connection and changes automatically to Wired Ethernet

mode.
The board receives a DHCP-assigned IP address, with a DHCP name that is “sclxxxx” where the

“xxxx” is the last four digits of the MAC address of the Matchport module.
When the indicator is made, a small sticker is applied to the back with this DHCP name on it.

Note

The DHCP name can be changed during configuration if desired.

• Use DeviceInstaller to configure the module’s WLAN settings (SSID and security) so it will attach to

the wireless network. After configuration, remove the Ethernet connection, then cycle power on the
indicator. The WLAN module should then attach to a wireless network and be available for
communications.

9 CLS-420 Installation Manual

4.1.4 Default Indicator

• If the module setting corrupts or if the indicator is moved to a new facility, and there is a problem

getting it to connect to either the wired, or wireless network, a factory default switch is provided to
wipe ALL configuration in the Matchport to a known state.

This function will reset ALL settings, including the Wireless and IP settings and will set the module up for Wired

Note

Connections ONLY.

Figure 4-5. Reset Switch

Setting the defaults with the switch

1. Remove the small screw from the upper right corner of the back panel.

2. With the indicator off, press and hold the switch.

3. Turn the indicator on and wait 10 seconds,

4. Turn the indicator off and release the switch.

The module is now set to factory defaults and in Wired Mode only.

Reconfigure by connecting the indicator to a Wired Ethernet network using the DeviceInstaller or browser.

Note

When complete, make sure to set the network mode back to “Wireless Only”.

CLS-420 Installation Manual 10

4.1.5 Supplying power to the carriage J-box.

10-Pin to J-Box

J4 Serial Comm

Antenna

J6 Digital Out

J3 EDP

CPU Board Power

Power Supply

Shown attached to CPU board

Figure 4-6. Ind Opt, WLAN 420-CLS

• Ind Opt, WLAN 420-CLS (121045) Can be ordered as a complete assembly or individual parts as

listed in Table 4-2.

Part # Description

109266
112226
112228
115509
118877
120998

15422
15425
15426
15429
15631
15642
21896
58579
70599
71126
98357

Table 4-2. Ind Opt, WLAN 420-CLS Parts List

Board Assy, Universal
Module, Wifi Matchport, Custom Firmware
Cable RF UFL to RSMA 6in
Glue,Jet-Melt
Cable ASSY,Power Supply
Cable Assy, Serial Input
Wire,22AWG Red Stranded
Wire,22AWG Green Stranded
Wire,22AWG Blue Stranded
Wire,22AWG White Stranded
Cable Tie,3in Nylon
Tubing,Heat Shrink 3/8
Label,Anti-Static Warning
Strap,Tie 8 in Length
CONN,6 Pos Screw Terminal
CONN,4 Pos Screw Terminal
Antenna, 2.4GHz 802.11B/G

11 CLS-420 Installation Manual

4.2 Special Matchport Firmware

The Matchport module (112226) used by ABF version have a modifications in the firmware.

• Even with the card set to “Wireless Only”, if during boot-up it detects an Ethernet connection, it will

revert to Ethernet for that session only.

• When the cable is removed and power cycled, it will go back to a Wireless mode. This was done for

ease of configuration using DeviceInstaller (as opposed to the RS232 method).

Power MUST be cycled for it to switch back to wireless mode - just removing the cable DOES NOT switch it

Note

back to a wireless connection.

• The module creates a unique DHCP name from its MAC address (see Section 4.1.3).

• The baud rate of both serial channels is set to 19200 to match the settings of their Mega 8 indicators.

• The input and output buffers are always flushed.

• Two of the general purpose inputs are set to allow the module to be set to factory defaults

The first GPIO to set the module to Default and Wireless Mode Only.

• The TCP Port Numbers for the two serial channels.

This firmware uses 8023 and 8024. Take note of that if troubleshooting.

4.2.1 420 Core Firmware

New EDP command and different defaults.

• Default baud rate for the Printer Port is now 19200. DO NOT CHANGE THIS!

• Zero Track Band default is 1D

• Zero range default is 100%.

• New EDP command, “P” (no carriage return or line feed). If talking to the indicator, simply send “P”

and it will respond with a single frame of stream data, no matter the status. “SENT” will appear on the
420 screen for a couple second after the 420 is successful in sending the response to the “P” command.

This DOES NOT mean the handheld device received the data, just that the 420 sent it. The 420 itself does not

Note

know if there is a good network connection or not, but if it got the “P” from the network, then the downstream
data is working. If the indicator says “SENT”, but the data is not getting back on the network, then check the TX
line from the 420 CPU to the RX of the WLAN card, and the RX LED on the WLAN card to make sure it blinks.

• In weigh mode, ALL the keys on the keypad are DISABLED except the “ZERO” key. Operators

can only use the zero key. The zero key is like a Tare - zeroing off empty pallets and such before
taking weighments.

• Messages in error conditions:

Angle is over 3°, the display actually says “Angle”.
Overload or underload, the display shows “Over” and “Under”.

Note

Default indicator if any settings become corrupt to return to default settings. See Section 4.1.4.

CLS-420 Installation Manual 12

5.0 Configuration

While the functionality remains the same for a standard 420 digital weight indicator, there are certain menu

Note

choices that need to be changed in the Configuration Section of this manual specific to the proper functioning
of the CLS-Series Cargo Lift Scale which include Calibration, Serial, Program, and Print Format.

To configure the 420 indicator, the indicator must be placed in setup mode. The setup switch is accessed by
removing the large fillister head screw on the enclosure bottom. Switch position is changed by inserting a
screwdriver or similar tool into the access hold and pressing the setup switch.

When the indicator is placed in setup mode, the word config is shown on the display. the CONFIG menu is the first
of ten main menus used to configure the indicator. Detailed descriptions of these menus are given in Section 5.2 on
page 24. When configuration is complete, return to the CONFIG menu and press the
then replace the setup switch access screw.

5.1 Configuration Methods

The 420 indicator can be configured by using the front panel keys to navigate through a series of configuration
menus or by sending commands or configuration data to the EDP port. Configuration using the menus is described
in Section 4.2 on page 24.

5.1.1 EDP Command Configuration

The serial command set can be used to configure the 420 indicator using either a personal computer, terminal, or
remote keyboard. Serial command configuration sends commands to the indicator serial port; serial commands can
be sent using any external device capable of sending ASCII characters over a serial connection.

EDP commands duplicate the functions available using the indicator front panel and provide some functions not
otherwise available. Serial commands can be used to simulate pressing front panel keys, to configure the indicator,
or to dump lists of parameter settings.

ZERO key to exit setup mode,

5.1.2 Front Panel Configuration

The 420 indicator can be configured using a series of menus accessed through the indicator front panel when the
indicator is in setup mode. Table 5-1 summarizes the functions of each of the main menus.

Menu Menu Function

CONFIG Configuration Configure grads, zero tracking, zero range, motion band, overload, tare function, sample

rate and digital filtering parameters
FORMAT Format Set format of primary and secondary units, display rate
CALIBR Calibration Calibrate indicator. See Section 5 for calibration procedures
SERIAL Serial Configuration and printer serial ports. EDP is dedicated to the two-channel iQube.
PROGRM Program Set power-up mode, regulatory mode, and consecutive number values
PFORMT Print Format Set print format used for gross and net tickets.
SETPNT Setpoint Configure setpoints and digital outputs
DIG IN Digital Input Assign digital input functions
ALGOUT Digital Output Configure analog output module. Used only if analog output option is installed
VERS Version Display installed software version number

Table 5-1. 420 Menu Summary

22 CLS-420 Installation Manual

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Figure 5-1. Front Panel Key Functions in Setup Mode

Four front panel keys are used as directional keys to navigate through the menu in setup mode (see Figure 5-2) The

UNITS and PRINT keys scroll left and right horizontally on the same menu level; ZERO and GROSS/NET move up

and down (vertically) to different menu levels. The TARE key serves as an Enter key for selecting parameter values
within the menus. A label above each of these keys identifies the direction provided by the key when navigating
through the setup menus.

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OE

-FWFM

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BCPWF1SFTT PS UPNPWFUPUIFOFYUQBSBNFUFSPOUIFMFWFMBCPWF

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7BMVF

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Figure 5-2. Setup Mode Menu Navigation

To select a parameter, press the left or the right arrow to scroll left or right until the desired menu group appears on
the display, then press the down arrow to move down to the submenu or parameter you want. When moving
through the menu parameters, the default or previously selected value appears first on the display.

To change a parameter value, scroll left or right to view the values for that parameter. When the desired value
appears on the display, press o to select the value and move back up one level. To edit numerical values, use the
navigation keys to select the digit and to increment or decrement the value or use the numeric keypad. See
Figure 5-3.

8IFOFEJUJOHOVNFSJDWBMVFTQSFTTPSUPDIBOHFUIF
EJHJUTFMFDUFE1SFTTPSUPJODSFNFOUPSEFDSFNFOUUIF
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Figure 5-3. Editing Procedure for Numeric Values

CLS-420 Installation Manual 23

5.2 Menu Structures and Parameter Descriptions

The following sections provide graphic representations of the 420 menu structures. In the actual menu structure,
the setting you choose under each parameter are arranged horizontally. To save page space, menu choices are
shown in vertical columns. The factory default setting appears at the top of each column in bold type.

Most menu diagrams are accompanied by a table that describes all parameters and parameter values associated
with that menu. Default parameter values are shown in bold type.

5.2.1 Configuration Menu

GRADS

10000

number

DIGFL1

4

16

32

64

ZTRKBN ZRANGE

0

number

1.900000

number

MOTBAN

1

number

XXXXXXX XXXXXXX XXXXXXX XXXXXXX

OVRLOA

FS+2%

FS+1D

FS+9D

FS

ALGOUT DIG IN SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT

SMPRAT

VERS

15HZ

30HZ

60HZ

7.5HZ

DIGFL2

2

8

1

2

4

8

16

32

64

1

DIGFL3

2

4

8

16

32

64

1

DFSENS DFTHRH

8OUT

16OUT

32OUT

64OUT

128OUT

2OUT

4OUT

NONE

2DD

5DD

10DD

20DD

50DD

100DD

200DD

250DD

T AREFN

BOTH

NOT ARE

PBTARE

KEYED

Figure 5-4. Configuration Menu

CONFIG Menu

Parameter Choices Description

Level 2 submenus

GRADS 1000

number

Graduations. Specifies the number of full scale graduations. The value entered must be in
the range 1-100 000 and should be consistent with legal requirements and environmental
limits on system resolution.
To calculate GRADS, use the formula, GRADS=Capacity / Display Divisions

Display divisions for primary and secondary units are specified on the FORMAT menu.

ZTRKBND 0

number

Automatically zeroes the scale when within the range specified, as long as the input is
within the ZRANGE and scale is at standstill. Specify the zero tracking band in ± display
divisions. Maximum legal value varies depending on local regulations.

NOTE: For scales using linear calibration, do not set the zero tracking band to a value
greater than that specified for the first linearization point.

Table 5-2. Configuration Menu Parameters

24 CLS-420 Installation Manual

CONFIG Menu

ZRANGE 1.900000

number

MOTBAND 1

number

OVRLOA FS+2%

FS+1D
FS+9D
FS

SMPRAT 15HZ

30HZ
60HZ

7.5HZ

DIGFL 1
DIGFL 2
DIGFL 3

DFSENS 8OUT

DFTHRH NONE

TAREFN BOTH

2

4
8
16
32
64
1

16OUT
32OUT
64OUT
128OUT
2OUT
4OUT

2DD
5DD
10DD
20DD
50DD
100DD
200DD
250DD

NOTARE
PBTARE
KEYED

Selects the range within which the scale can be zeroed. The 1.900000 default value is ±

1.9% around the calibrated zero point, for a total range of 3.8%. Indicator must be at
standstill to zero the scale. Use the default value for legal-for-trade applications.

Sets the level, in display divisions, at which scale motion is detected. If motion is not
detected for 1 second or more, the standstill symbol lights. Some operations, including
print, tare, and zero, require the scale to be at standstill. Maximum legal value varies
depending on local regulations.

If this parameter is set to 0, the standstill annunciator will be set continuously on, and
operations including zero, print, and tare will be performed regardless of scale motion. If 0
is selected, ZTRKBND must also be set to 0.

Overload. Determines the point at which the display blanks and an out-of-range error
message is displayed. Maximum legal value varies depending on local regulations.

Sample rate. Select measurement rate, in samples per second, of the analog-to-digital
converter. Lower sample rate values provide greater signal noise immunity.

Digital filtering. Selects the digital filtering rate used to reduce the effects of mechanical
vibration from the immediate area of the scale.

Choices indicate the number of A/D conversions that are averaged to obtain the
displayed reading. A higher number gives a more accurate display by minimizing the
effect of a few noisy readings, but slows down the setting rate of the indicator. See
Section 8.7 on page 47 for more information on digital filtering.

Digital filter cutout sensitivity. Specifies the number of consecutive readings that must fall
outside the filter threshold (DFTHRH parameter) before digital filtering is suspended. If
NONE is selected, the filter is always enabled.

Digital filter cutout threshold. Specifies the filter threshold, in display divisions. When a
specified number of consecutive scale readings (DFSENS parameter) fall outside of this
threshold, digital filtering is suspended. if NONE is selected, the filter is always enabled.

Tare function. Enables or disables push-button and keyed tares. Possible values are:

BOTH: Both push-button and keyed tares are enabled
NOTARE: No tare allowed (gross mode only)
PBTARE: Push-button tares enabled
KEYED: Keyed tare enabled

Table 5-2. Configuration Menu Parameters

CLS-420 Installation Manual 25

5.2.2 Format Menu

9999999 999999999999999999999

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%

%

,(

0;

5/

5

(

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-#

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



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5

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



Figure 5-5. Format Menu

Format Menu

Parameter Choices Description

Level 2 submenus

PRIMAR DECPNT

DSPDIV
UNITS

SECNDR DECPNT

DSPDIV
UNITS
MULT

DSPRAT 250MS

500MS
750MS
1SEC

1.5SEC
2SEC

2.5SEC
3SEC
4SEC
6SEC
8SEC

Level 3 submenus

Primary Units (PRIMAR Parameter)

DECPNT 888888

888880

8.8888

88.8888

888.888

8888.88

8888.8

DISPDIV 1D

2D
5D

Specifies the decimal position, display divisions, and units used for the primary unit. See

Level 3 submenu parameter descriptions.

Specifies the decimal position, display division, units , and conversion multiplier used for

the secondary units. See Level 3 submenu parameter descriptions.

Display rate. Set the update rate for displayed values. Values are in milliseconds (MS) or

seconds (SEC).

Decimal point location. Determines the location of the decimal point or dummy zeros in

the secondary unit display.

Display divisions. Selects the value of minimum division size of the displayed weight.

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26 CLS-420 Installation Manual

Table 5-3. Format Menu

Format Menu

UNITS LB

KG
OZ
TN
T
G
NONE

Secondary Units (SECNDR Parameter)

DECPNT 88888.8

888888
888880

8.88888

88.8888

888.888

8888.88

DISPDIV 5D

1D
2D

UNITS KG

OZ
TN
T
G
NONE
LB

MULT 0.453592

Enter other
choices via
keyboard

Specifies primary units for displayed and printed weight. Values are: LB=pound;

KG=kilogram, OZ=ounce, TN=short ton; T=metric ton, G=gram

Note: Indicators sold outside North America are configured with KG for both primary and

secondary units

Decimal point location. Determines the location of the decimal point or dummy zeros in

the secondary unit display.

Display divisions. Selects the value of minimum division size of the displayed weight.

Specifies secondary units for displayed and printed weight. Values are: KG=kilogram,

OZ=ounce; TN=short ton; T=metric ton, G=gram; LB=pound

Multiplier. Specifies the conversion factor by which the primary units are multiplied to

obtain the secondary units. The default is 0.453592, which is the conversion factor for

changing pounds to kilograms.

Note: Multipliers are pre-configured within the indicator. Manual entry is only necessary

when NONE is selected under UNITS.

To toggle between primary and secondary units, press the UNITS key.

Table 5-3. Format Menu

CLS-420 Installation Manual 27

5.2.3 Calibration Menu

Figure 5-6 illustrates the calibration procedures for the CLS-420 using two load cells. It does not represent the
basic Calibration menu for the 420 indicator

.

7&34

"/(-&; 87"- $.$&-

$.;&30

9999999 999999999999999999999

$.$&-

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Figure 5-6. CLS-420 Calibration Menu Using Two Load Cells

7&34

8;&30 87"- 841"/

Figure 5-7.

Basic 420 Calibration Menu

3&;&30

9999999 999999999999999999999

"-(065%*(*/4&51/5130(3. 1'03.54&3*"-$"-*#3$0/'*( '03."5

CALIBR Menu

Parameter Choices Description

Level 2, submenu

ANGLEZ — Calibrate the inclinometer pitch and roll angles on the two-channel iQube when the pitch and roll

angles are zero.
This operation tells the two-channel iQube to use the current readings from the MEMS inclinometer

and store these angle measurements as offsets that are applied to the current measurement angle
that are used in calculating the correction factor that is applied to the weight.

CMZERO Setup the two-channel iQube for calibration match (Cal-Match)

This tells the two-channel iQube that the calibration mode is set for Cal-Match, initialize variables

for the calibration then do a Zero Calibration (no load).
WVAL — Display and edit the test weight value
CMCEL1

through
CMCEL2

— This parameter is used to calibrate a particular load cell with a load with CELL1 being the left side

fork as viewed from the drivers position CELL2 being on the right hand side as viewed from the

drivers position.

This tells the two-channel iQube to calibrate a particular load cell.

These steps must be performed in order, CMCEL1 (left fork) first, followed by CMCEL2 (right fork).

Table 5-4. SCALES Menu, CALIBR Submenu Parameters

28 CLS-420 Installation Manual

5.2.4 SERIAL Menu

Figure 5-8 illustrates the serial menu and their associated settings for the functionality of the CLS-420 Cargo Lift
Scale. It should be noted that the EDP port is dedicated to the two channel iQube communication and is
automatically set when the SSCALE parameter is set to 2LCELL. Table 5-5 below, illustrates the different serial
settings used for CLS functionality and a basic 420 indicator.

EDP PRINT

ECHO

ON

OFF

Same as EDP

The print port is labeled Serial to the CPU board.

9600

19200

38400

300

600

1200

2400

4800

BITS TERMINBAUD

8NONE

7EVEN

7ODD

CR/LF

CR

EOLDLY

000

number

STREAM

OFF

EDP

PRN

XXXXXXX XXXXXXXXXXXXXXXXXXXXX

ALGOUTDIGI NSETPNTPROGRM PFORMTSERIALCALIBRCONFIG FORMAT

STRRTE

INDUST

LFT

VERS

PRNDES

EDP

PRN

PRNMSG

ON

OFF

SSCALE

OFF

2LCELL

4LCELL

Figure 5-8. CLS-420 SERIAL Menu

The SSCALE parameter on the serial menu must be set to 2LCELL for use with the CLS-420 Cargo Lift Scale. If

Note

it is set to OFF, then the 420 indicator will function with a standard 420 calibration menu.

SSCALE Parameter Settings

Parameter If set to OFF If set to 2LCELL

Baud 9600 19200
Bits 8 None 8 None
Termin CR/LF CR
EOLDLY 000 000
Echo On Off

SS-LFT

ON

OFF

Table 5-5. SSCALE Parameter Settings

CLS-420 Installation Manual 29

SERIAL Menu

Parameter Choices Description

Level 2 submenus

EDP ­dedicated to
the two
channel
iQube

PRINT BAUD

STREAM OFF

STRRTE INDUST

PRNDES EDP

PRNMSG ON

SSCALE OFF

SS-LFT ON

Level 3 Submenus EDP Port and Printer Port

BAUD 9600- Printer

BITS 8NONE

TERMIN CR/LF -

EOLDLY 000000

ECHO OFF - EDP

BAUD
BITS
TERMIN
EOLDLY
ECHO

BITS
TERMIN
EOLDLY
ECHO

EDP
PRN

LFT

PRN

OFF

2LCELL

4LCELL

OFF

19200 - EDP

28800
38400
57600
115200
300
600
1200
2400
4800

7EVEN
7ODD

Printer

CR - EDP

0–255

ON - Printer

Specifies settings for baud rate, data bits, termination characters, end-of-line delay and echo
used by the EDP port.

Specifies settings for baud rate, data bits, termination characters, end-of-line delay, and echo
used by the printer port.

Selects the serial port used for continuous transmission. See Figure 8.3 42 for information
about the 420 continuous data format.

Specifies stream rate. Stream rate can be set to industrial or legal for trade.

Print destination. Selects the port for data transmission when the print key is pressed or the
KPRINT EDP command is sent.

Print message. Default will be ON. When the print key is pressed and data is sent out, the
word PRINT is momentarily displayed on the remote display.

By selecting this option, it enables the scale to be used by the CLS series cargo lift scale.

This parameter turns off the LFT 3 degree tilt warning.

Baud rate. Selects the transmission speed for the port.

Selects number of data bits and parity of data transmitted or received by the port.

Termination character. Selects termination character for data sent from the port.

End-of-line delay. Sets the delay period, in 0.1-second intervals, from when a formatted line is
terminated to the beginning of the next formatted serial output. Value specified must be in the
range 0-255, in tenths of a second (10 = 1 second).

This command enables or disables echoing of the serial commands sent to the indicator.

30 CLS-420 Installation Manual

Table 5-6. Serial Menu Parameters

5.2.5 Program Menu

PWRUPM

GO

DELAY

COUNT

ACCESS

SPLISIZ

REGULA

NTEP

OIML

CANADA

NONE

XXXXXXX XXXXXXX

CONSNU

000000

number

CONSTU

000000

number

SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT

UID

1

ACCUM

ON/OFF

ON

ON

RTZGRD

0

Figure 5-9. Program Menu

Program Menu

Parameter Choices Description

Level 2 submenus

PWRUPM GO

DELAY

COUNT ACCESS

SPLSIZ

REGULA NTEP

OIML
CANADA
NONE

Power up mode. In GO mode, the indicator goes into operation immediately after a brief
power up display test.
In DELAY mode, the indicator performs a power up display test, then enters a 30-second
warm up period. If no motion is detected during the warm up period, the indicator becomes
operational when the warm up period ends; if motion is detected, the delay timer is reset
and the warm up period repeated.

Specifies whether the operator has access to piece count mode and the default sample size
used for parts counting. See level three submenu for parameter descriptions.

Regulatory mode. Specifies the regulatory agency having jurisdiction over the scale site.

OIML, NTEP, and CANADA modes allow a tare to be acquired at any weight greater than
zero, NONE allows tares to be acquired at any weight value.

VERS DIGIN ALGOUT

DATE

DATFMT

MMDDYY

DDMMYY

YYMMDD

YYDDMM

DATSEP

SLASH

DASH

SEMI

TIME

TIMFMT

24HOUR

12HOUR

TIMSEP

COLON

COMA

OIML, NTEP, and CANADA modes allow a tare to be cleared only if the gross weight is at no
load. NONE allows tares to be cleared at any weight value.

NTEP and OIML modes allow a new tare to be acquired even if a tare is already present. In
CANADA mode, the previous tare must be cleared before a new tare can be acquired.

NONE, NTEP, and CANADA modes allow the scale to be zeroed in either gross or net mode
as long as the current weight is within the specified ZRANGE. In OIML mode, the scale must
be in gross mode before it can be zeroed; pressing the ZERO key in net mode clears the
tare.

CONSNU 000000

number

Consecutive numbering. Allows sequential numbering for print operations. The consecutive
number value is incremented following each print operation.

The initial value of this parameter is set to the start up value specified on the CONSTU
parameter. Changing either CONSTU or CONSNU immediately resets the consecutive
number used for printing.

CONSTU 000000

number

Consecutive number start up value. Specifies the initial consecutive number (CONSNU)
value used when the indicator is powered on.

UID 1 Specifies the unit identification number. Value specified can be any numeric value, up to six

digits.

Table 5-7. FEATURE Menu Parameters

CLS-420 Installation Manual 31

Program Menu

Parameter Choices Description

ACCUM ON/OFF

RTZGRD

DATE DATFMT

DATSEP

TIME TIMFMT

TIMSEP

Level 3 submenus

ACCESS DISABLE

ENABLE

SPLSIZ 10

20
50
100
5
PCWGT

ON/OFF ON

OFF

RTZGRD 0

Number

DATFMT MMDDYY

DDMMYY
YYMMDD

DATSEP SLASH

DASH
SEMI

TIMFMT 24HOUR

12HOUR

TIMSEP COLAN

COMMA

Turns the accumulator on and off. Stores the count, date & time of last accumulation.
Returns to zero grads to re-arm the accumulator.

Allows selection of date format and date separator. See level three parameter for
descriptions.

Allows selection of time format and separator. See level three parameter for descriptions.

Operator access to piece count mode. Specify DISABLE if piece count mode will not be
used. With access disabled, pressing the GROSS/NET Mode key toggles between gross
and net modes only.

Sample size. Specify the default size used for counting scale operations. Sample size can
be changed in counting mode during sample acquisition.

Turns the accumulator on and off.

This is the number of grads from 0 that it has to return to re-arm the accumulator between
weighments.

Specifies the format used to display or print the date.

Specifies the date separator character

Specifies the format used to display or print the time

Specifies the time separator character

Table 5-7. FEATURE Menu Parameters (Continued)

5.2.6 Accumulate Function

The accumulate function is used to add weight data to a register for later access by the user. The accumulator can
keep a running total of weights entered by manually pressing the PRINT key when the accumulate function is
enabled (ON). The accumulator will accumulate displayed weight values as long as the accumulate function is
enabled and the user keeps pressing the PRINT key.

To display the accumulated weight, press and hold the

(MODE) GROSS/NET key for three seconds. The value will be

displayed for about 10 seconds. To clear the accumulator, press the CLR key twice while the accumulated value is
being displayed.

32 CLS-420 Installation Manual

Print Format Menu

See for information about custom print formatting.

5.2.7

Setpoint Menu

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Figure 5-10. Print Format Menu

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DIBSBDUFS

99999999999999

9999999 999999999999999999999

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4&51/5

9999999

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/'.5

9999999 9999999

7&34

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Figure 5-11. Setpoint Menu

Setpoint Menu

Parameter Choices Description

Level 2 submenu

SETPT1
SETPT2

Level 3 submenu

ENABLE
KIND
VALUE
TRIP
BNDVAL

Specify settings for setpoint enable, kind, weight value, trip, and band value used by the
setpoint.

"$$&44

0''

0/

Table 5-8. Setpoint Menu Parameters

CLS-420 Installation Manual 33

Setpoint Menu

Parameter Choices Description

ENABLE OFF

ON

KIND GROSS

NET

VALUE number Display and edit the setpoint value.
TRIP HIGHER

LOWER
INBAND
OUTBND

BNDVAL number The band value for either INBAND or OUTBND trip setpoints. BNDVAL is ignored unless

HYSTER number Specifies a band around the setpoint value that must be exceeded before the setpoint,

ACCESS OFF

ON

Turn setpoint on or off.

Specifies the setpoint kind and determines whether function is based on GROSS or NET
weight.
GROSS or NET setpoint kinds can be used.

Trips the setpoint when the weight is higher or lower than the setpoint value, or is within or
outside of the band value. LOWER means the output is active until you reach weight. If
trip is HIGHER, the output is active when the setpoint is met or exceeded. INBAND
means the output is active if the weight is within the band value. If trip is OUTBND, the
output is active when the weight is outside of the band value.

trip is set to INBAND or OUTBND.

once off, can trip on.
Front panel access to setpoints. Specify OFF if setpoints will not be tested. ON enables

operator to turn setpoints on/off, change value, or change BANDVAL via front panel entry
during weigh mode.

Table 5-8. Setpoint Menu Parameters (Continued)

34 CLS-420 Installation Manual

5.2.8 Digital Input Menu

The DIG I/O menu shown in Figure 5-12 is used to assign functions to digital inputs.

Figure 5-12. DIG I/O Menu

DIG IN Menu

Parameter Choices Description

Level 2 submenu

DIGIN1
DIGIN2

OFF
ZERO
TARE
NT/GRS
UNITS
DSPTAR
PRINT
CLRCN
KBDLOC
HOLD
CLRACC
ACCUM
NEWID

Specifies the function activated by digital inputs 1 and 2.

• ZERO, NT/GRS (net/gross mode toggle), TARE, UNITS, and PRINT provide the
same functions as the front panel keys.

• DSPTAR displays the current tare value.

• CLRCN resets the consecutive number to the value specified on the CONSTU
parameter (PROGRM menu).

• KBDLOC disables the keypad while the digital input is held low.

• HOLD holds the current display. Releasing this input clears the running average filter.

• CLRACC clears the accumulator

• ACCUM displays the accumulator

• NEWID enters the ID number.

9999999 999999999999999999999

%*(*/

0''

;&30

5"3&

/5(34

6/*54

%415"3

13*/5

$-3$/

,#%-0$ ,#%-0$

)0-%

$-3"$$

"$$6.

/&8*%

"-(065%*(*/4&51/5130(3. 1'03.54&3*"-$"-*#3$0/'*( '03."5

7&34

%*(*/

0''

;&30

5"3&

/5(34

6/*54

%415"3

13*/5

$-3$/

)0-%

/&8*%

Table 5-9. Digital Input Menu Parameters

CLS-420 Installation Manual 35

5.2.9 Analog Output Menu

The ALGOUT menu is shown only if the analog output option is installed. If the analog output option is installed,
configure all other indicator functions and calibrate the indicator itself before configuring the analog output.

SOURCE

GROSS

NET

OFFSET

0%

20%

ERRACT

FULLSC

HOLD

ZEROSC

MIN

000000

number

MINNEG

OFF

ON

XXXXXXX XXXXXXX ALGOUT DIGIN SETPNT XXXXXXX PROGRM PFORMT SERIAL CALIBR XXXXXXX CONFIG FORMAT

MAX

10000

number

VERS

MAXNEG

OFF

ON

TWZERO

TWSPAN

Figure 5-13. Analog Output Menu

ALG OUT Menu

Parameter Choices Description

Level 2 submenus

SOURCE GROSS

NET

OFFSET 0%

20%

ERRACT FULLSC

HOLD
ZEROSC

MIN 000000

0–9999999

MINNEG OFF

ON

MAX 10000

0–9999999

MAXNEG OFF

ON

TWZERO _ Tweak zero. Enter tweak value to adjust the analog output zero calibration. Use a multimeter to monitor

TWSPAN _ Tweak span. Enter tweak value to adjust the analog output span calibration. Use a multimeter to monitor

Specifies the scale tracked by the analog output.

Zero offset. Select 0% for 0–10 V or 0–20 mA output; select 20% for 4–20 mA output. This parameter
must be set before calibrating the analog output.

Error action. Specifies how the analog output responds to system error conditions.
Possible values are:

FULLSC: Set to full value (10 V or 20 mA)
HOLD: Hold current value
ZEROSC: Set to zero value (0 V or 4 mA)

Specifies the minimum weight value tracked by the analog output. Specify a value in the range
0–9999999.

Turn ON or OFF.

Specifies the maximum weight value tracked by the analog output. Specify a value in the range
0–9999999

Turn ON or OFF.

the analog output value.

the analog output value.

36 CLS-420 Installation Manual

Table 5-10. Analog Output Menu Parameters

5.2.10 Version Menu

The VER S menu c an be us ed to che ck the s oftw are ve rsio n inst alle d on the i ndic ator . Ther e are no p aram eter s
associated with the version menu; when selected, the indicator displays the installed software version number.

Figure 5-14. Version Menu

%*(*/4&51/5130(3. 1'03.54&3*"-$"-*#3$0/'*( '03."5

9999999 "-(06599999999999999

40'583

 

3&(7&3

7&34

.0%&-

45%

TUBOEBSE

)&

IPTUJMF

FOWJSPONFOU

"7

BJSMJOFNPEFM

$-4

GPSLMJGUTDBMF

CLS-420 Installation Manual 37

6.0 Calibration

While the functionality remains the same for a standard 420 digital weight indicator, there are certain menu

Note

choices that need to be changed in the manual that are specific to the proper functioning of the CLS-Series
Cargo Lift Scale which include Calibration, Serial, Program, and Print Format.

The CLS-420 indicator can be calibrated using the front panel calibration procedure as explained in Section 6.1.
This method consists of the following steps:

• Zeroing the scale inclinometer

• Zero calibration

• Entering the test weight value

• Calibration of cell #1

• Calibration of cell #2

The following sections describe the calibration procedure for each of the calibration methods.

"-(065%*(*/4&51/5130(3. 1'03.54&3*"-$"-*#3$0/'*( '03."5

"/(-&; 87"- $.$&-

$.;&30

9999999 999999999999999999999

$.$&-

Figure 6-1. CLS-420 Calibration (CALIBR) Menu

6.1 Front Panel Calibration

To calibrate the indicator, the forklift tines must be in place as test weights are placed upon them.

Use a level to ensure that the forklift tines are level prior to calibration.

Note

The test weight used to calibrate the CLS-420 cannot be greater than 2500 lbs.

To calibrate the indicator using the front panel, do the following:

1. Place the 420 indicator in setup mode (display reads

2. Press

until the display reads CALIBR (see Figure 6-1).

3. Use a level to level the forklift tines before pressing

4. With

ANGLEZ displayed and no weight on the forklift, press to zero the scale inclinometer. -CAL- is

briefly displayed on the indicator.

5. With

6. The indicator then asks for the

CMZERO displayed press to capture the lead load zero. -CAL- is displayed briefly on the indicator.

WVAL (weight value). Enter the weight of the test weight to be used in the

calibration procedure by pressing the enter key
keypad. Then press enter again.

CMCEL1 is displayed.

7.

CONFIG).

to go to ANGLEZ.

and then keying in the weight value using the numeric

7&34

8. Put the test weight on the left tine of the forklift

,%&44).%

&/2+,)&4
,//+).'
$/7.

and press . -CAL- is briefly displayed.

9. Once -CAL- is displayed, the indicator display automatically jumps to CMCEL2. Move test weight to the
other tine. Press and -CAL- is briefly displayed.

10. At this time the display says

-PASS- or -FAIL-. If the display says PASS, it is followed by CALIBR and the

calibration procedure is complete.

11. If the display says

-FAIL-, then the display goes back to CMZERO and the calibration procedure must be

started over.

38 CLS-420 Installation Manual

7.0 Repair Parts List

Part # Description

121014
130826
120999
120996
120997
121006
121132
112323
121003
121004

96198

125543

96195

iQube1 J-Box Assembly
iQube1 J-Box with automatic quick disconnects
Complete ABF version 420CLS indicator
ABF Firmware
420 CPU board with ABF special firmware installed
WLAN reset switch assembly
Replacement Ethernet cable and jack assembly
Ethernet jack cover
Mounting plate
Angled Mounting Bracket
SBM RL2000 FLS Load Cell
SBM RL2000 FLS Load Cell with quick disconnects
Power Cable Assembly

CLS-420 Installation Manual 39

8.0 Appendix

8.1 Error Messages

The 420 indicator provides a number of error messages. When an error occurs, the message is shown on the
indicator LED display.

8.1.1 Displayed Error Messages

The 420 provides a number of front panel error messages to assist in problem diagnosis. Table 8-1 lists these
messages and their meanings.

Error Message Description Solution

E A/D A/D physical error Call Rice Lake Weighing Systems (RLWS) Service.
EEEROM EEPROM physical error
EVIREE Virgin EEPROM Use TEST menu to perform DEFLT (restore defaults) procedure, then
EPCKSM Parameter checksum error
EACKSM A/D calibration checksum error A/D converter requires recalibration. Call RLWS Service.
EFCKSM Printer format checksum error Call RLWS Service.
ELCKSM Load cell calibration checksum error Recalibrate load cells.
EIDATA Internal RAM checksum error Call RLWS Service.
E REF A/D reference error A/D converter requires recalibration. Call RLWS Service.
ERROR Internal program error Check configuration. Run XE command (see Section 8.1.2 on

OVERFL Overflow error Weight value too large to be displayed.

------ Gross > overload limit Gross value exceeds overload limit. Check configuration or signal

______ A/D underrange A/D reading < –4 mV. Check scale for binding or damage.
RNGERR GRADS > 100,000

WVAL > 100,000
NO COM No communication with j-box Check the cable or wireless connections or install a charged battery.
ERRSS Serial Scale Error Generic error. Need to troubleshoot system or call RLWS service.

---- Forks not level Position forks within three degrees of level.
Wait J-Box is powering up This display is a normal action of the indicator.
LowBat J-Box battery is getting low or dead.

May not occur if completely dead.
ErrCell J-Box is reporting a generic error This is a declared error and should look at test mode to diagnose the

recalibrate load cells.

page 41) to determine error type.
Call RLWS Service if unable to clear error by cycling power or if error
recurs.

input level. Overload can be caused by input signal > 45 mV or
common mode voltage > 950 mV.

Only shows up in Config mode.

Change battery.

problem.

40 CLS-420 Installation Manual

Table 8-1. 420 Error Messages

8.1.2 Using the XE EDP Command

The XE EDP command can be used to remotely query
th e 420 f or th e err or c ond iti ons s ho wn on t he fr ont
panel. The XE command returns two 5-digit numbers
in the format:

xxxxx yyyyy

where xxxxx contains a decimal representation of any
existing error conditions as described in Table 8-2.

If more than one error condition exists, the number
returned is the sum of the values representing the error
conditions. For example,
the number 1040, this value represents the sum of an A/
D re fe renc e er ror (1 024) a nd a n A/D ca libr at ion
checksum error (16).

The second number returned (
assignments as shown in Table 8-2 to indicate whether
the test for the error condition was run. For example,
the value yyyyy = 50815 represents the decimal
equivalent of the binary value 1100 0110 0111 1111.
Using the bit assignments in Table 8-2, this value
indicates all tests were run.

Error
Code

0x0001
0x0002
0x0004
0x0008
0x0010
0x0020
0x0040
0x0080
0x0100
0x0200
0x0400
0x0800
0x1000
0x2000
0x4000
0x8000

0x10000 - 0x80000000

EEPROM Error 0000 0000 0000 0001
Virgin EEPROM 0000 0000 0000 0010
Config Parameter Checksum 0000 0000 0000 0100
Load Cell Checksum 0000 0000 0000 1000
A/D Calibration Checksum 0000 0000 0001 0000
Print Formats Checksum 0000 0000 0010 0000
XA Internal RAM Error 0000 0000 0100 0000
External RAM Error 0000 0000 1000 0000
Reserved 0000 0001 0000 0000
ADC Physical Error 0000 0010 0000 0000
ADC Reference 0000 0100 0000 0000
Count Error 0000 1000 0000 0000
Reserved 0001 0000 0000 0000
Display Range 0010 0000 0000 0000
ADC Range 0100 0000 0000 0000
Gross Limit 1000 0000 0000 0000

Description Binary Value

if the XE command returns

yyyyy) uses the same bit

Reserved

Table 8-2. Error Codes Returned on XE Command

8.2 Status Messages

Two EDP commands, P and ZZ, can be used to provide
status about the indicator. These commands are
described in the following sections.

8.2.1 Using the P EDP Command

Th e P EDP c omm and r et urn s the c urr en t dis pla ye d
we igh t va lue t o the E DP p ort , alo ng wi th t he un it s
identifier. If the indicator is in an underrange or
overload condition, the weight value is replaced with

&&&&&& (overload) or:::::: (underrange).

8.2.2 Using the ZZ EDP Command

The ZZ EDP command can be used to remotely query
which annunciators are currently displayed on the
indicator front panel. The ZZ command returns the
currently displayed weight and a decimal number
representing the LED annunciators currently lit. The
format of the returned data is:

wwwwww uu zzz

where wwwwww uu is the current displayed weight and
units, zzz is the annunciator status value (see Table 8-3).
If more than one annunciator is lit, the second number
returned is the sum of the values representing the active
annunciators.

Example: If the annunciator status value returned on

the Z Z com man d is 14 5, the g ros s, st and sti ll, a nd lb
annunciators are lit. 145 represents the sum of the
values for the standstill annunciator (128), gross mode
annunciator (16), and the lb/primary units annunciator
(1).

Decimal

Value

1 lb/primary units

2 kg/secondary units
16 Gross
32 Net
64 Center of zero

128 Standstill

Table 8-3. Status Codes Returned on the ZZ Command

Annunciator

CLS-420 Installation Manual 41

8.3 Continuous Output (Stream) Format

Figure 8-1 shows the continuous output format sent to the 420 printer port when the STREAM parameter (SERIAL
menu) is set to either EDP or PRN.

45910-XXXXXXX 6/*5 (/ 4 5&3.

"4$**
EFDJNBM

1PMBSJUZ

1PTJUJWF

TQBDF
o/FHBUJWF
?0WFSMPBE

>6OEFSSBOHF

8FJHIUEBUBEJHJUTSJHIUKVTUJmFEXJUI
EFDJNBMQPJOUMFBEJOH[FSPTVQSFTTJPO
0WFSMPBE???????
6OEFSSBOHF>>>>>>>
%JTQMBZPWFSnPX07&3'-

Figure 8-1. Continuous Output Data Format

((SPTT
//FU

-QPVOET
,LJMPHSBN
5UPO
(HSBNT
0PVODFT
TQBDFOPOF

$3-'

PS$3

"4$**

EFDJNBM

4UBUVT
TQBDFWBMJE
**OWBMJE
..PUJPO
00WFSVOEFSSBOHF

42 CLS-420 Installation Manual

8.4 ASCII Character Chart

Use the decimal values for ASCII characters listed in Tables 8-4 and 8-5 when specifying print format strings on
the 420 PFORMT menu. The actual character printed depends on the character mapping used by the output device.

The 420 can send or receive any ASCII character value (decimal 0–255), but the indicator display is limited to
numbers, upper-case, unaccented letters, and a few special characters. See Section 8.5 on page 45 for information
about the 420 LED display.

Control ASCII Dec Hex ASCII Dec Hex ASCII Dec Hex ASCII Dec Hex

Ctrl-@ NUL 00 00 space 32 20 @ 64 40 ` 96 60

Ctrl-A SOH 01 01 ! 33 21 A 65 41 a 97 61

Ctrl-B STX 02 02 “ 34 22 B 66 42 b 98 62
Ctrl-C ETX 03 03 # 35 23 C 67 43 c 99 63
Ctrl-D EOT 04 04 $ 36 24 D 68 44 d 100 64

Ctrl-E ENQ 05 05 % 37 25 E 69 45 e 101 65

Ctrl-F ACK 06 06 & 38 26 F 70 46 f 102 66
Ctrl-G BEL 07 07 ’ 39 27 G 71 47 g 103 67
Ctrl-H BS 08 08 ( 40 28 H 72 48 h 104 68

Ctrl-I HT 09 09 ) 41 29 I 73 49 i 105 69
Ctrl-J LF 10 0A * 42 2A J 74 4A j 106 6A
Ctrl-K VT 11 0B + 43 2B K 75 4B k 107 6B
Ctrl-L FF 12 0C , 44 2C L 76 4C l 108 6C

Ctrl-M CR 13 0D - 45 2D M 77 4D m 109 6D
Ctrl-N SO 14 0E . 46 2E N 78 4E n 110 6E
Ctrl-O SI 15 0F / 47 2F O 79 4F o 111 6F

Ctrl-P DLE 16 10 0 48 30 P 80 50 p 112 70

Ctrl-Q DC1 17 11 1 49 31 Q 81 51 q 113 71
Ctrl-R DC2 18 12 2 50 32 R 82 52 r 114 72

Ctrl-S DC3 19 13 3 51 33 S 83 53 s 115 73
Ctrl-T DC4 20 14 4 52 34 T 84 54 t 116 74

Ctrl-U NAK 21 15 5 53 35 U 85 55 u 117 75

Ctrl-V SYN 22 16 6 54 36 V 86 56 v 118 76

Ctrl-W ETB 23 17 7 55 37 W 87 57 w 119 77

Ctrl-X CAN 24 18 8 56 38 X 88 58 x 120 78
Ctrl-Y EM 25 19 9 57 39 Y 89 59 y 121 79
Ctrl-Z SUB 26 1A : 58 3A Z 90 5A z 122 7A

Ctrl-[ ESC 27 1B ; 59 3B [ 91 5B { 123 7B

Ctrl-\ FS 28 1C < 60 3C \ 92 5C | 124 7C

Ctrl-] GS 29 1D = 61 3D ] 93 5D } 125 7D
Ctrl-^ RS 30 1E > 62 3E ^ 94 5E ~ 126 7E
Ctrl-_ US 31 1F ? 63 3F _ 95 5F DEL 127 7F

Table 8-4. ASCII Character Chart (Part 1)

CLS-420 Installation Manual 43

ASCII Dec Hex ASCII Dec Hex ASCII Dec Hex ASCII Dec Hex

Ç 128 80 á 160 A0 192 C0  224 E0

ü 129 81 í 161 A1 193 C1 ß 225 E1

é 130 82 ó 162 A2 194 C2  226 E2

â 131 83 ú 163 A3 195 C3  227 E3

ä 132 84 ñ 164 A4 196 C4  228 E4

à 133 85 Ñ 165 A5 197 C5  229 E5

å 134 86 ª 166 A6 198 C6 µ 230 E6

ç 135 87 º 167 A7 199 C7  231 E7

ê 136 88 ¿ 168 A8 200 C8  232 E8

ë 137 89 169 A9 201 C9  233 E9

è 138 8A ¬ 170 AA 202 CA  234 EA

ï 139 8B 1/2 171 AB 203 CB  235 EB
î 140 8C 1/4 172 AC 204 CC  236 EC

ì 141 8D ¡ 173 AD 205 CD  237 ED
Ä 142 8E « 174 AE 206 CE  238 EE
Å 143 8F » 175 AF 207 CF  239 EF
É 144 90 176 B0 208 D0  240 F0

æ 145 91 177 B1 209 D1 ± 241 F1
Æ 146 92 178 B2 210 D2  242 F2

ô 147 93 179 B3 211 D3  243 F3
ö 148 94 180 B4 212 D4  244 F4
ò 149 95 181 B5 213 D5  245 F5
û 150 96 182 B6 214 D6 ÷ 246 F6
ù 151 97 183 B7 215 D7 ˘ 247 F7

ÿ 152 98 184 B8 216 D8 ° 248 F8
Ö 153 99 185 B9 217 D9 • 249 F9
Ü 154 9A 186 BA 218 DA 250 FA

¢ 155 9B 187 BB 219 DB 251 FB

£ 156 9C 188 BC 220 DC 252 FC

¥ 157 9D 189 BD 221 DD

Pts 158 9E 190 BE 222 DE 254 FE

ƒ 159 9F 191 BF 223 DF 255 FF

²

253 FD

44 CLS-420 Installation Manual

Table 8-5. ASCII Character Chart (Part 2)

8.5 Front Panel Display Characters

Figure 8-2 shows the 7-segment LED character set used to display alphanumeric characters on the 420 front panel.

 & 2

 '3



 (4

 ) 5

 *6

  +7

A

 ,8

 !-9

  ".:

  #/;

  $0 <

  %1 =

Figure 8-2. 420 Display Characters

CLS-420 Installation Manual 45

8.6 Conversion Factors for Secondary Units

The 420 has the capability to mathematically convert a
weight into many different types of units and instantly
display those results with a press of the UNITS key.

Secondary units can be specified on the FORMAT
menu using the SECNDR parameter, or by using EDP
commands.

NOTES:

• Multipliers are preconfigured within the
indicator. Manual entry is only necessary when
NONE is selected under UNITS. Long tons and
grain units listed in Table 8-6 cannot be directly
specified as primary or secondary units. For
the se or ot her u nli ste d unit s of we igh t, sp eci fy
NONE under UNITS.

• Ensure that the secondary decimal point position
is set appropriately
secondary units. If the converted value requires
more digits than are available, the indicator will
display an overflow message (OVERFL).

• For example, if the primary units are short tons,
secondary units are
decimal point is set to 8888.88, the indicator will
overflow if 5 tons or more are applied to the
scale. With 5 tons applied, and a conversion
factor of 2000, the secondary units display needs
five digits to the left of the decimal point to
display the 10000 lb secondary units value.

for the scale capacity in the

pounds, and the secondary

Primary Unit x Multiplier Secondary Unit

grains 0.064799 grams

0.002286 ounces

0.000143 pounds

0.000065 kilograms

ounces 437.500 grains

28.3495 grams

0.06250 pounds

0.02835 kilograms

pounds 7000.00 grains

453.592 grams

16.0000 ounces

0.453592 kilograms

0.000500 short tons

0.000446 long tons

0.000453 metric tons

short tons 2000.00 pounds

907.185 kilograms

0.892857 long tons

0.907185 metric tons

grams 15.4324 grains

0.035274 ounces

0.002205 pounds

0.001000 kilograms

kilograms 15432.4 grains

35.2740 ounces

1000.00 grams

2.20462 pounds

0.001102 short tons

0.000984 long tons

0.001000 metric tons

metric tons 2204.62 pounds

1000.00 kilograms

1.10231 short tons

0.984207 long tons

long tons 2240.00 pounds

1016.05 kilograms

1.12000 short tons

1.01605 metric tons

NOTE: Multipliers in italics are preconfigured

46 CLS-420 Installation Manual

Table 8-6. Conversion Factors

8.7 Digital Filtering

The 420 uses averaged digital filtering to reduce the effect of vibration on weight readings. Adjustable threshold
and sensitivity functions allow quick settling by suspending filter averaging, allowing the weight reading to jump
to the new value. Figure 8-3 shows the digital filter parameters on the CONFIG menu.

%*('-















%*('-















%*('-















%'4&/4 %'5)3)

065

065

065

065

065

065

065

/0/&

%%

%%

%%

%%

%%

%%

%%

%%

Figure 8-3. Digital Filtering Parameters on the Configuration (CONFIG) Menu

%*('-O %*('-O %*('-O

O

"%3FBEJOHT

O

TU4UBHF

'JMUFS"WFSBHFT

O

OE4UBHF

'JMUFS"WFSBHFT

TU4UBHF

'JMUFS"WFSBHF

OE4UBHF

'JMUFS"WFSBHF

SE4UBHF

'JMUFS"WFSBHF

%JTQMBZFE

7BMVF

Figure 8-4. Flow Diagram for 420 Digital Filters

8.7.1 DIGFLx Parameters

The first three digital filtering parameters, DIGFL1, DIGFL2, and DIGFL3, are configurable filter stages that
control the effect of a single A/D reading on the displayed weight. The value assigned to each parameter sets the
number of readings received from the preceding filter stage before averaging (see Figure 8-4).

The overall filtering effect can be expressed by adding the values assigned to the three filter stages:

DIGFL1 + DIGFL2 + DIGFL3

For example, if the filters are configured as DIGFL1=4, DIGFL2=8, DIGFL3=8, the overall filtering effect is 20 (4
+ 8 + 8). With this configuration, each A/D reading has a 1-in-20 effect on the displayed weight value. Setting the
filters to 1 effectively disables digital filtering.

8.7.2 DFSENS and DFTHRH Parameters

The three digital filters can be used by themselves to eliminate vibration effects, but heavy filtering also increases
settling time. The DFSENS (digital filter sensitivity) and DFTHRH (digital filter threshold) parameters can be used
to temporarily override filter averaging and improve settling time:

• DFSENS specifies the number of consecutive scale readings that must fall outside the filter threshold
(DFTHRH) before digital filtering is suspended.

• DFTHRH sets a threshold value, in display divisions. When a specified number of consecutive scale
readings
turn off the filter override.

(DFSENS) fall outside of this threshold, digital filtering is suspended. Set DFTHRH to NONE to

CLS-420 Installation Manual 47

8.7.3 Setting the Digital Filter Parameters

Fine-tuning the digital filter parameters greatly improves indicator performance in heavy-vibration environments.
Use the following procedure to determine vibration effects on the scale and optimize the digital filtering
configuration.

1. In setup mode, set all three digital filters

(DIGFL1, DIGFL2, DIGFL3) to 1. Set
DFTHRH to NONE. Return indicator to
normal mode.

2. Remove all weight from the scale, then watch

the indicator display to determine the
magnitude of vibration effects on the scale.
Record the weight below which all but a few
readings fall. This value is used to calculate the
DFTHRH parameter value in Step 4.

For example, if a heavy-capacity scale
produces vibration-related readings of up to 50
lb, with occasional spikes to 75 lb, record 50 lb
as the threshold weight value.

3. Place the indicator in setup mode and set the

digital

filters (DIGFLx) to eliminate the
vibration effects on the scale. (Leave
DFTHRH set to NONE.) Reconfigure as
necessary to find the lowest effective values

for the DIGFLx parameters.

4. With optimum values assigned to the DIGFLx
parameters, calculate the DFTHRH parameter
value by converting the weight value recorded
in Step 2 to display divisions:

threshold_weight_value / DSPDIV

In the example in Step 2, with a threshold
weight value of 50 lb and a display division
value of 5lb: 50 / 5lb = 10DD. DFTHRH should
be set to 10DD for this example.

5. Finally, set the DFSENS parameter high
enough to ignore transient peaks. Longer
transients (typically caused by lower vibration
frequencies) will cause more consecutive
out-of-band readings, so DFSENS should be
set higher to counter low frequency transients.

Reconfigure as necessary to find the lowest
effective value for the DFSENS parameter.

8.8 Analog Output Calibration

The following calibration procedure requires a multimeter to measure voltage or current output from the analog
output module.

The analog output must be calibrated after the indicator itself has been configured (Section 5.0) and calibrated

Note

(Section 6.0).

SOURCE

GROSS

NET

OFFSET

0%

20%

ERRACT

FULLSC

HOLD

ZEROSC

MIN

000000

number

Figure 8-5. Analog Output Menu

1. Enter setup mode and go to the ALGOUT
menu (see Figure 8-5).

• Set OFFSET to 0% for 0–10 V output,

20% for 4–20 mA output

• Set MIN to lowest weight value to be

tracked by the analog output

• Set MAX to highest weight value to be

tracked by the analog output

2. Connect multimeter to analog output:

• For voltage output, connect voltmeter

leads to pins three and four

• For current output, connect ammeter leads

to pins one and two

MINNEG

OFF

ON

XXXXXXX XXXXXXX ALGOUT DIGIN SETPNT XXXXXXX PROGRM PFORMT SERIAL CALIBR XXXXXXX CONFIG FORMAT

MAX

10000

number

VERS

MAXNEG

OFF

ON

TWZERO

TWSPAN

3. Adjust zero calibration: Scroll to the
TWZERO parameter. Check voltage or current
reading

on multimeter. Press and hold or

to adjust the zero value up or down.

4. Adjust span calibration: Scroll to the TWSPAN
parameter. Check voltage or current reading on
multimeter. Press and hold

or to adjust the

span value up or down.

5. Final zero calibration: Return to the TWZERO
parameter and verify that the zero calibration
has not drifted. Press and hold

or to

re-adjust the zero value as required.

6. Return to normal mode. Analog output
function can be verified using test weights.

48 CLS-420 Installation Manual

8.9 Test Mode

Test mode is intended for factory use only.

Note

In addition to normal and setup modes, test mode provides a number of diagnostic functions for the 920i, including:

• Display raw A/D count

• Reset configuration parameters to default values

• A/D internal calibration

To enter test mode, press and hold the setup switch until the front panel display shows the word
three seconds, the test mode display automatically shifts to the first test menu function, A/DTST.

Figure 8-6 shows the Test Menu structure; Figure 8-7 shows the front panel key functions in test mode. Note that,
because the Test Menu functions are all on a single menu level, the

ZERO ( ) key to exit test mode.

GROSS/NET ( ) key has no function. Press the

Table 8-7 summarizes the test menu functions.

5&45

TEST. After about

TEST Menu

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"%0''4

"%("*/

Figure 8-6. Test Mode Menu

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/PU6TFE

&/5&3 .PWF-&'5 .PWF3*()5

Figure 8-7. Front Panel Key Functions in Test Mode

%&'-5

Function Description

A/DTST Display A/D test

Press and hold Enter key to display raw count from A/D converter.

DEFLT Default parameters

Press setup switch and Enter key at the same time to reset configuration and calibration parameters to factory
default values. Load cells must be recalibrated before using the indicator (see Section 6.0 on page 38).

Table 8-7. Test Mode Menu Functions

CLS-420 Installation Manual 49

8.10 Regulatory Mode Functions

REGULAT

Parameter Value Weight on Scale Tare in System

NTEP zero or negative no no action ZERO

yes CLEAR TARE

positive no TARE

yes TARE

CANADA zero or negative no no action TARE

yes CLEAR TARE

positive no TARE

yes no action

OIML zero or negative no no action ZERO

yes CLEAR TARE ZERO and CLEAR TARE

positive no TARE ZERO

yes TARE ZERO and CLEAR TARE

NONE zero or negative no TARE ZERO

yes CLEAR TARE

positive no TARE

yes CLEAR TARE

Front Panel Key Function

TARE ZERO

Table 8-8. TARE and ZERO Key Functions for REGULAT Parameter Settings

8.11 LED Functions

The following is a list of diagnostic LEDs for the 420. See Figure 1.3.2 5 for locations on the 420 CPU board.

Serial Port Status

LED1 (EDP Port) Flashing red = TXD activity

Flashing green = RXD activity
On steady or off = No activity

LED2 (PRN Port) Flashing red = TXD activity

Flashing green = RXD activity
On steady or off = No activity

Power Supply

LED (+5AV) Excitation/ADC supply on
LED (+5V & +3.3V) Digital logic supply on

Operation Status

LEDHB (Microprocessor) Flashing green = Active

Red = Fault

LED AD (ADC) Green = Active

Red = Fault

LED MEM (Memory Test) Green = Pass

Red = Fail
LED ANA Red = Not Implemented
(Analog Option Card)

Digital Input/Output Status

DO 1 (Digital Out 1) On when lit (active low)
DO 2 (Digital Out 2) On when lit (active low)
DI 1 (Digital In 1) On when lit (active low)
DI 2 (Digital In 2) On when lit (active low)

50 CLS-420 Installation Manual

8.12 420 Indicator Specifications

Power - DC Voltage

DC Line Voltages 9-36 VDC Input
Power Consumption 1.5 A
Fusing Internal short circuit protection

2.5 A 5 x 20 mm fuse

Analog Specifications

Full Scale Input Signal Up to 22.5 mV
Excitation Voltage +5V single sided

8 x 350 or 16 x 700 load cells

Sense Amplifier Differential amplifier with

4- and 6-wire sensing

Analog Signal

Input Range –0.5 mV/V to +4.5 mV/V

Analog Signal

Sensitivity 0.3 V/graduation minimum,

1.5 V/grad recommended
Input Impedance 200 M, typical
Noise (ref to input) 0.3 V p-p with digital filters at 4-4-4
Internal Resolution 8,000,000 counts
Display Resolution 100 000 dd
Measurement Rate Up to 60 measurements/sec
Input Sensitivity 10 nV per internal count
System Linearity Within 0.01% of full scale
Zero Stability 150 nV/°C, maximum
Span Stability 3.5 ppm/°C, maximum
Calibration Method Software, constants stored in EEPROM
Common Mode

Voltage –2.35 to +3.45 V, referred to ground
Rejection 130 dB minimum @ 50 or 60 Hz

Normal Mode

Rejection 90 dB minimum @ 50 or 60 Hz

Input Overload ± 12 V continuous, static discharge

protected

RFI Protection Signal, excitation, and sense lines

protected by capacitor bypass

Analog Output Optional: fully isolated, voltage or

current output,14-bit resolution.
Voltage output: 0 –10 VDC
Load resistance:1K minimum
Current output: 0–20/4–20 mA
External loop resistance: 500

maximum

Serial Communications

EDP Port dedicated to two channel iQube

Printer Port Full duplex RS-232 or active transmit

Both Ports 38400, 19200, 9600, 4800, 2400,

communication

only 20 mA current loop

1200, 600, 300 bps; 7 or 8 data bits;
even, odd, or no parity

Operator Interface

Display 6-digit LED display. 7-segment, 1.8 in

LED annunciators Gross, net, center of zero, standstill, lb/

Keypad 21-button keypad

(44.5 mm) digits

primary units, kg/secondary units,
count, tare

Environmental

Operating Temperature–10 to +40°C (legal);

–10 to +50°C (industrial)
Storage Temperature –25 to +70°C
Humidity 0–95% relative humidity

Enclosure

Enclosure Dimensions 10.5 in x 12.5 in x 6.4 in

26.7 cm x 31.75 cm x 16.3 cm
Weight 7.8 lb. (3.54 Kg)
Rating/Material UL Type 4X

Certifications and Approvals

0

$

/

-

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&

"

3

/

&

0

*

/

5

$

"

&

/

t

t

0

/

8

NTEP
CoC Number 04-076
Accuracy Class III/III L

Measurement Canada (Pending)

Accuracy Class III/III HD

4

&

3

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6

*

4

(

"

)

&

5

4

.

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n

max: 10 000

n

max: 10 000

Digital Specifications

Microcomputer Phillips PXAG30K main processor @

19.6608 MHz

Digital Inputs 2 inputs, TTL or switch closure,

active-low
Digital Outputs 2 outputs, 250 mA Max Sink
Digital Filters 3 filters, software selectable

CLS-420 Installation Manual 51

CLS-420 Digital Indicator Limited Warranty

Rice Lake Weighing Systems (RLWS) warrants that all RLWS equipment and systems properly installed by a
Distributor or Original Equipment Manufacturer (OEM) will operate per written specifications as confirmed by the
Distributor/OEM and accepted by RLWS. All systems and components are warranted against defects in materials
and workmanship for two years.

RLWS warrants that the equipment sold hereunder will conform to the current written specifications authorized by
RLWS. RLWS warrants the equipment against faulty workmanship and defective materials. If any equipment fails
to conform to these warranties, RLWS will, at its option, repair or replace such goods returned within the warranty
period subject to the following conditions:

• Upon discovery by Buyer of such nonconformity, RLWS will be given prompt written notice with a
detailed explanation of the alleged deficiencies.

• Individual electronic components returned to RLWS for warranty purposes must be packaged to prevent
electrostatic

discharge
Protecting Your Components From Static Damage in Shipment, available from RLWS Equipment Return
Department.

• Examination of such equipment by RLWS confirms that the nonconformity actually exists, and was not
caused by

accident, misuse, neglect, alteration, improper installation, improper repair or improper

testing; RLWS shall be the sole judge of all alleged non-conformities.

• Such equipment has not been modified, altered, or changed by any person other than RLWS or its duly
authorized repair agents.

• RLWS will have a reasonable time to repair or replace the defective equipment. Buyer is responsible for
shipping charges both ways.

• In no event will RLWS be responsible for travel time or on-location repairs, including assembly or
disassembly of equipment, nor will RLWS be liable for the cost of any repairs made by others.

HESE WARRANTIES EXCLUDE ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WITHOUT

T

LIMITATION WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. NEITHER RLWS
NOR DISTRIBUTOR WILL, IN ANY EVENT, BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.

RLWS

OR REPLACEMENT OF SUCH GOODS. IN ACCEPTING THIS WARRANTY, THE BUYER WAIVES ANY AND ALL OTHER
CLAIMS TO WARRANTY.

S

WARRANTY CLAIMS.

N

WARRANTY SHALL HAVE ANY LEGAL EFFECT UNLESS MADE IN WRITING AND SIGNED BY A CORPORATE
OFFICER OF RLWS AND THE BUYER.

AND BUYER AGREE THAT RLWS’ SOLE AND EXCLUSIVE LIABILITY HEREUNDER IS LIMITED TO REPAIR

HOULD THE SELLER BE OTHER THAN RLWS, THE BUYER AGREES TO LOOK ONLY TO THE SELLER FOR

O TERMS, CONDITIONS, UNDERSTANDING, OR AGREEMENTS PURPORTING TO MODIFY THE TERMS OF THIS

(ESD) damage in shipment. Packaging requirements are listed in a publication,

© 2011 Rice Lake Weighing Systems, Inc. Rice Lake, WI USA. All Rights Reserved.

RICE LAKE WEIGHING SYSTEMS • 230 WEST COLEMAN STREET • RICE LAKE, WISCONSIN 54868 • USA

52 CLS-420 Installation Manual

DAILY INSPECTION CHECKLIST FOR LIFT TRUCK SCALE USERS

 Check scale carriage for loose, worn, bent or broken components.

 Inspect fork tines for damage.

 Check locking pins on fork tines.

 Inspect coiled cable for pinched, rubbed, stretched or damaged areas.

 Inspect power cable from indicator to battery for nicks or cuts.

 Make sure power cable is routed out of harms way, fasten periodically to eliminate

potential problems.

 Tighten cable connections at indicator j-box if necessary.

 Inspect coiled cable clamps and cable ties to be sure all cable attachments are

secure.

 Inspect indicator mounting bracket, isolation mounts and hardware for loose or

cracked parts.

 Tighten bottom clamps on scale carriage if necessary. Raise carriage and visually

inspect.

 Check and adjust the lift chain so the heel of the forks have 1/2” to 1” of clearance

from floor when the carriage is down and the mast is vertical.

CLS-420 Installation Manual 53

54 CLS-420 Installation Manual

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