Cardinal 2240, 2241 Operation Manual

Digital Counting Scale

Models 2240 and 2241

Operation Manual

8526-M231-O1 Rev C PO BOX 151 WEBB CITY, MO 64870 Printed in USA
10/99 PH 417-673-4631 FAX [phone]

INTRODUCTION

We wish to thank you for your purchase of our
Digital Counting Scale. This instrument has been
designed and manufactured at our factory in Webb
City, MO U.S.A. with quality and reliability.

This manual will help aquaint you with the features
of this instrument and instruct you in the proper
installation, operation and maintenance of your
new scale. Please read it before attempting to use
the scale and keep it handy for future reference.

FCC COMPLIANCE STATEMENT
WARNING! This equipment generates, uses and

can radiate radio frequency and if not installed and
used in accordance with the instruction manual,
may cause interference to radio communications. It
has been tested and found to comply with the limits
for a Class A computing device pursuant to Subpart
J of Part 15 of FCC rules, which are designed to
provide reasonable protection against such
interference when operated in a commercial
environment. Operation of this equipment in a
residential area may cause interference in which
case the user will be responsible to take whatever
measures necessary to correct the interference.

You may find the booklet "How to Identify and Resolve
Radio TV Interference Problems" prepared by the
Federal Communications Commission helpful. It is
available from the U.S. Government Printing Office,
Washington, D.C. 20402. Stock No. 001-000-00315-4.

All rights reserved. Reproduction or use, without
expressed written permission, of editorial or
pictorial content, in any manner, is prohibited. No
patent liability is assumed with respect to the use of
the information contained herein. While every
precaution has been taken in the preparation of this
manual, the Seller assumes no responsibility for
errors or omissions. Neither is any liability assumed
for damages resulting from use of the information
contained herein. All instructions and diagrams
have been checked for accuracy and ease of
application; however, success and safety in
working with tools depend to a great extent upon
the individual accuracy, skill and caution. For this
reason the Seller is not able to guarantee the result
of any procedure contained herein. Nor can they
assume responsibility for any damage to property
or injury to persons occasioned from the
procedures. Persons engaging the procedures do
so entirely at their own risk.

TABLE OF CONTENTS

Introduction ................................ 1.

Specifications ............................. 2.

Installation ................................ 3.

Components and Controls ................. 4.

Precautions ............................... 5.

Interconnections

...........................6.

Key Functions ............................. 8.

Reset Function ............................10

Annunciators ..............................10

Operation Without ID ......................12

Standard Sampling and Counting .......12

Counting with an Insufficient Sample ...12

Adjusting the Sample Quantity ..........13

Counting Out of A Container ...........13

Accumulator ............................13

Weight Display .........................14

Push Button Tare ......................14

Tare Weight Entry

......................

15

Metric Conversion ......................15

Operation Using ID(S) .....................15

Adding and Deleting ID Numbers .......16

Selecting the ID Number ...............17

Verifying Active (Current) ID Number ...17

Turning Off The Active ID Number ......17

Operation With Stored Tare Weigh .....18

Standard Sampling and Counting .......18

Counting with an Insufficient Sample ...19

Adjusting the Sample Quantity ..........19

Counting Out from a Container .........20

Accumulators

..........................

21

Calibration and Setup .....................24

Calibration Seal Installation ................30

Sampling and Count Accuracy .............31

Error and Status Displays ..................33

Before You Call Service ...................33

Care and Cleaning ........................33

Optional Battery Pack Operation ...........34

Thermal Label Formats ....................36

Parts Identification .........................37

1

PRECAUTIONS

Before using this instrument, read this
manual and pay special attention to all
"WARNING" symbols:

IMPORTANT ELECTRICAL

WARNING

Serial Number_____________________
Date of Purchase __________________
Purchased Form___________________

_________________________________
_________________________________

RETAIN THIS INFORMATION FOR FUTURE USE

SPECIFICATIONS

Power Requirements .......... 115VAC 50/60Hz (2240) 220/240 VAC 50/60Hz (2241)

Power Consumption ........... 20 Watts (maximum)

Power Cord .................... 2240: 6 foot, 3-pin polarized - 2241: 6 foot

Operating Temperature ........ 14º F to 104º F (-10º C + 40º C)

Internal Resolution

............

1,000,000
Weight Displayed Resolution .. 10,000 divisions

Sample Rate .................. 2 samples per second

Load Cell Excitation ...........9.3 VDC

ID Number Capacity .......... 300

Dimensions ...................13½" W x 13¼" D x 4" H (345mm W x 339mm D x 102mm H)

Shipping Weight .............. 28 lbs (incl. optional battery)

MODEL Capacity x Division Value Commodity Tray Dimensions

2240-5
2241-5*

5 lb x 0.0005 lb or 2 kg x 0.0002kg 13½" W x 10¼" D

2240-10
2241-10*

10 lb x 0.001 lb or 5 kg x 0.0005kg 13½" W x 10¼" D

2240-20
2241-20*

20 lb x 0.002 lb or 10 kg x 0.001kg 13½" W x 10¼" D

2240-50
2241-50*

50 lb x 0.005 lb or 20 kg x 0.002kg 13½" W x 10¼" D

2240-100
2241-100*

100 lb x 0.01 lb or 40 kg x 0.005kg 13½" W x 10¼" D

* 220/240 VAC 50/60Hz models

Standard Features:

0.6" high red LED 6 Character Count/Data display

0.6" high red LED 5 Character Weight Display
LED Operating Status Annunciators
Metric (lb/kg) Conversion
Bi-Directional RS-232 Printer Port
Fixed Printer Port Data Format, 9600 baud, 8 data bits, No parity and 1 stop bit
Mechanical Overload Protection
Adjustable Leveling Feet and Bubble Level Indicator
User-accessible Setup Parameters
Digital Calibration
Auto Recall of Last Piece Weight
Simplified Operation Selection
Automatic Recomputation of Average Piece Weight
Manual Count Accumulators
Auto Shut-Off Feature
Auto Selection of Optional Remote Scale
Switch between Local and Remote Scale during Sample or Count Operation
Non-volatile Memory stores up to 300 ID's and retains associated data base

Optional Features:

Battery Operation using readily available Sealed Lead-Acid Camcorder battery
Approximately 10 hours use on fully charged battery (without remote scale)
Remote Scale
Label Printer

2

INSTALLATION

Unpacking

Before beginning installation of your Digital Counting Scale, make certain the instrument has
been received in good condition. Carefully remove the instrument from the shipping carton and
inspect it for any evidence of damage (such as exterior dents or scratches) that may have taken
place during shipment. Keep the carton and packing material for return shipment if it should
become necessary. It is the responsibility of the purchaser to file all claims for any damages or
loss incurred during transit. Refer to the Counting Scale Unpacking and Re-Packing

Instructions, 8526-M246-01, for additional information.

Placement

Place the scale on a stable, vibration-free level surface away from direct sunlight and from any
rapidly moving air source (heating/cooling vents, fans, etc.). Make certain the power cord and
peripheral cables are routed out of the way of normal traffic.

CAUTION! DO NOT place the scale on any unstable cart, stand or table. The
scale may fall causing injury to the operator, and seriously damage the unit,
or proper operation of the scale may be inhibited.

Level Adjustment

Check to make certain the scale is level. The level indicator is located in the center of the
weighbridge under the Stainless Steel commodity tray. Remove the commodity tray and
observe the level bubble (see Figure No. 1). If the scale is not level (the bubble will not be
centered), loosen the locking nut on all four (4) mounting feet (see Figure No. 2) and adjust
them as required to center the bubble and attain a level scale. Once a level condition has
been obtained, lock the mounting feet in place by tightening the adjustment nuts against the
bottom of the scale.

Figure No. 1

Power Connection

The scale contains a power supply which converts the 110/120/220/240 VAC 50/60Hz wall
supply to the power required by the scale circuitry. The power supply also contains the circuitry
necessary to monitor and recharge the optional battery and is capable of operating the scale and
recharging the battery simultaneously.

3

Leveled

Not Leveled

INSTALLATION, Cont.

AC Operation (Model 2240)

Plug the power cord into a grounded, polarized wall receptacle that supplies 110/120 VAC
50/60Hz power. If it is necessary to use an extension cord, make certain it is a 3-wire, fully
grounded type using a minimum of 18 gauge wire. Be certain the power cord is routed out of the
way of normal traffic. If only a ungrounded wall receptacle is available, it is the customer's
responsibility to contact a qualified electrician to replace the ungrounded receptacle with a
properly grounded polarized wall receptacle or have a grounding adapter properly installed.

CAUTION! To avoid electrical hazard, DO NOT under any circumstances, cut,
remove, alter, or in any way bypass the power cord grounding prong.

AC Operation (Model 2241)

It is the responsibility of the customer to contact a qualified electrician to install the proper

power cord connector. Plug the power cord into a grounded, polarized wall receptacle that
supplies 220/240 VAC 50/60Hz power. Be certain the power cord is routed out of the way of
normal traffic.

COMPONENTS and CONTROLS

Figure No. 2

4

Remote Scale

On/Off
Switch

Battery
Access

Locking Nut

Mounting Feet

Fuse

AC Power
Socket

Connector

Printer
Connector

Calibration
Sealing Screw

On/Off Switch

Weight Display

Count/Data Display

Battery Low and
Insufficient Sample
Annunciators

Quick
Count
Keys

Battery
Access

Commodity Tray

PRECAUTIONS

Most scales are designed for an office type environment. The Digital Counting Scale is no
exception to that rule. Such an environment is free of excessive dust and moisture and provides
a comfortable temperature. In general, the scale will perform well over a temperature range of
32° to 104° F (0° to +40° C). In order to keep cooling requirements to a minimum, the scale
should be placed out of direct sunlight and to provide adequate air circulation, keep the area
around the scale clear. Make certain the scale is not directly in front of a heating or cooling vent.
Such a location will subject the scale to sudden temperature changes and air currents which may
result in unstable weight readings. Insure that the scale has good, clean AC power and is
properly grounded. In areas subject to lightning strikes, additional protection to minimize
lightning damage, such as surge suppressors, should be installed.

5

CAUTION! When in parallel runs, locate external Load Cell
cables a minimum of 24 inches away from all AC wiring.

INTERCONNECTIONS

Remote Scale Connection

If a remote scale is used, it connects to the counting scale via a 9-pin "D" connector (REMOTE
SCALE) located on the rear panel of the scale (see Figure No. 2). Before connecting your
remote scale to the counting scale, verify that your scale cable is correctly wired. Refer to Figure
No. 3 for pin identification of the remote scale connector.

The Digital Counting Scale ships from the factory configured for remote scales that do not use
load cells with sense leads (4 wire load cells). The sense jumpers, J1 and J2 are installed for
proper operation with 4 wire load cells. If your remote scale uses load cells with sense leads (6
wire load cells), jumpers J1 and J2, located on the printed circuit board (see Figure No. 5) should
be placed on one pin only or disconnected.

Make certain that the connector retaining screws are used to hold the remote scale cable
connector securely to the rear panel.

Figure No. 3

MATING CONNECTOR INFORMATION

PART NO. VENDOR PART NO.

6610-2379 DE-9P CONNECTOR
6610-1131 DE-24657 SHELL

6

REMOTE SCALE

PIN LOCATION AS VIEWED FROM CABLE ATTACHMENT SIDE

1

69

5

INTERCONNECTIONS, Cont.

Printer Port Connection

The Digital Counting Scale has a serial printer port that may be used to print weight and
associated data. The data is sent to the printer on demand when the PRINT key is pressed. The
printer connects to the counting scale via the 25-pin "D" connector (PRINTER) located on the
rear panel of the scale. Refer to Figure No. 4 for pin identification of the printer port connector.
NOTE: The serial printer port has a fixed data format, configured for 9600 baud, 8 data bits, No
parity and 1 stop bit (9600,8,N,1) operation.

Printer Port Rs-232 Connector Pin Definitions

3 TXD Output to printer (Transmit)
2 RXD Input from printer (Receive, not used)
7 COMMON Common (Signal Ground)

19 CTS Input from printer (Clear To Send)

MATING CONNECTOR INFORMATION

PART NO. VENDOR PART NO.

6610-2047 DB-25P CONNECTOR
6610-2218 BACKSHELL

Figure No. 5

7

PIN LOCATION AS VIEWED FROM CABLE ATTACHMENT SIDE

PRINTER

PIN 13

PIN 1

PIN 14

PIN 25

Figure No. 4

ON for
4 Wire
Load Cells

OFF for
6 Wire
Load Cells

J2 & J1

Remote Scale
Analog Board

KEY FUNCTIONS

This section describes the use of each of the keys on the Digital Counting Scale. It will be helpful
to refer to the scale keyboard or Figure No. 6 when reading this section.

ZERO The ZERO key is used to perform a variety of functions depending on the current

mode of operation:

Weight Display Mode (lb or kg annunciator on): Pressing the ZERO key will set
the weight display to zero and turn on the ZERO annunciator if the displayed
weight is within ± 4% of scale capacity.

Count Mode (COUNT annunciator on): Pressing the ZERO key while in the Count
mode will reset the count quantity to zero.

Accumulator Mode (ACCUM annunciator on): Pressing the ZERO key while in the
Accum mode will reset the contents of the currently selected accumulator to zero.

PRINT Pressing the PRINT key will transmit RS-232 data to an optional printer,

recording time, date, weight, piece count and ID or part number. Refer to the
Thermal Label Formats section of this manual and Figure No. 12 for typical print
formats.

SAMPLE The SAMPLE key is used to weigh a known number of pieces to be added or

removed from the scale in preparation for a new counting operation. The SAMPLE
key is also used to change the sample quantity. Pressing the SAMPLE key
repeatedly will cause the sample size to step through pre-established sample sizes
of 5, 10, 25, 50 and 100 pieces. In this manner sample quantities other than the
first one requested by the scale can be used for counting operations. Sample
quantities may also be entered using the numeric keypad in any quantity desired.

COUNT The COUNT key is pressed after removing or adding the requested sample, and

will place the scale in the COUNT mode and start the counting operation.

ACCUM Pressing the ACCUM key will cause the scale to display the contents of the

accumulator (the number of pieces accumulated since the last time the accumulator
was zeroed) for the currently selected identification (ID) number.

+ (plus) The + (plus) key is used to add the current piece count value to the accumulator of

the currently selected identification (ID) number. The ACCUM annunciator will flash
to indicate the accumulation has taken place.

- (minus) The - (minus) key is used to substract the current piece count value from the
accumulator of the currently selected identification (ID) number. The ACCUM
annunciator will flash to indicate the subtraction has taken place.

ID Pressing the ID key will cause the scale to display the currently selected

identification (ID) number and allow the entry of a new ID number.

LOCAL Pressing this key while displaying any weight information will select the
SCALE instrument platform (LOCAL) for sampling, counting or weighing operations.

8

The membrane keyboard is not to be operated with pointed objects (pencils, pens,
fingernails, etc). Damage to keyboard resulting from this practice will NOT be
covered under warranty.

KEY FUNCTIONS, Cont.

NET Pressing this key will toggle the weight display between the Net and Gross weight
GROSS display modes. NOTE: If a valid tare weight has not been entered, pressing this

key will toggle between Net and Gross modes (illuminating the appropriate
annunciator) with no change on the display.

TARE The TARE key is used to display the current tare weight (or zero if no tare has

been entered) and/or using the numeric keypad, to enter a new tare weight. It is
also used when entering a tare under a specific indentification (ID) number.

TIME Pressing this key will allow the entry of hours-minutes-seconds (6 digits) followed
DATE by the entry of the month-day-year (6 digits). NOTE: The time and date formats

are selected during setup of the counting scale.

lb/kg Pressing this key will toggle the weighing units between pounds (lb) and kilograms

(kg). NOTE: The currently selected weighing unit is indicated by illuminating either
the lb or kg annunciator (LED).

REMOTE Pressing this key while displaying any weight will select the optional external
SCALE scale (REMOTE) for sampling, counting or weighing operations. The Remote

Scale annunciator (LED) will illuminate to indicate the external (REMOTE) scale is
in use. NOTE: The REMOTE scale cannot be selected until it has first been
enabled in Setup and then calibrated.

ENTER The ENTER key is used to signal the completion of the data entry process and

starts the scale processing the data entered.

0 These keys are used to enter numeric data during setup and calibration as well
through as during normal operations. NOTE: The 1 and 0 keys have dual functions. They
9 are used to enter numeric data during setup and calibration as well as during

normal operations and are also used to answer Yes (1=YES) or No (0 = NO)
to various prompts.

This is the decimal point key used to enter a decimal point where required when
entering numeric data.

CE The CE key is used to perform different functions depending on the current mode of

operation:
Data Entry: The CE key is used to clear an incorrect entry from the display without

processing the data. If an incorrect entry is made, press the CE key and re-enter
the correct data. NOTE: The CE key must be pressed before the ENTER key to
ensure the data is not procesed.

Sample Mode (SAMPLE annunciator on): Pressing the CE key while in the Sample
mode during the initial Add display will reset the Add value to 5. This display
indicates the number of sample pieces to be added to (or removed from) the scale
platform.

NOTE: An invalid key entry will produce a long tone and no change on the
display.

9

RESET FUNCTION

A hidden key (under the Cardinal bird emblem) is provided to be used as an reset function to
abort the current operation and return the scale to the weight display mode. This allows the
operator to start the operation again from the beginning.

Figure No. 6

ANNUNCIATORS

The annunciators are turned on to indicate that the scale is in the mode corresponding to the
annunciator label or that the status indicated by the label is active. It will be helpful to refer to
the scale keyboard or Figure No. 6 when reading this section. The following describes the
functions of each annunciators.

GROSS

The GROSS annunciator is turned on to show that the weight displayed is the gross weight.
Gross weight may be displayed only when in the weight mode and a zero tare weight (or no tare
weight) value is stored. Note that the GROSS annunciator is only active when the display is in
the weight mode as shown by the illumination of the lb or kg annunciator.

TARE

The TARE annunciator is turned on to show that the scale is in a weight mode in which a known
tare (container) weight may be keyed in via the numeric keypad, or in a mode that will display the
current TARE weight.

NET

The NET annunciator is turned on to show that the weight displayed is the net weight. Net weight
is determined by subtracting the stored tare weight from the gross or scale weight. The tare
weight, usually the weight of the container, is entered using the tare key. Note that the NET
annunciator is only active when a zero tare weight or tare weight value is stored and the display
is in the weight mode as shown by the illumination of the lb or kg annunciator.

kg

The kg annunciator is turned on to show that the weight displayed is in kilograms. The lb/kg key
may be used to select kilogram as the weighing units.

lb

The lb annunciator is turned on to show that the weight displayed is in pounds. The lb/kg key
may be used to select pounds as the weighing units.

ZERO

The ZERO annunciator is turned on to show that the scale gross weight is within ± ¼ of a
division of true zero (center-of-zero).

10

ANNUNCIATORS, Cont.

MOTION

The MOTION annunciator shows that the scale weight is unstable. An unstable weight reading
may be caused by motion on the scale platform. Accumulation of piece counts, Zero and printing
cannot take place when the MOTION annunciator is illuminated.

ID

The ID annunciator is used to show the status of the Identification Number mode. During
operation, the ID annunciator will be ON (not flashing) to indicate that an ID number is active.
When the scale is in the ID ADD, EDIT or DELETE modes of operation, the ID annunciator will
be flashing.

ACCUM

The ACCUM annunciator shows that the display is in the Accumulator mode and that the value
displayed is the current contents of the accumulator. Individual counts are adjusted via the ( + )
and ( - ) keys or optionally, any count may be entered using the numeric keypad. Note, a flashing
ACCUM annunciator indicates that the current count has been added to the accumulator (count
annunciator is also lit).

SAMPLE

The SAMPLE annunciator shows that the display is in the Sample mode and that the value
displayed is the sample quantity requested in pieces.

COUNT

The COUNT annunciator shows that the display is in the Count mode and the value displayed is
the count quantity of either the pieces removed from the scale platform (reverse counting) or the
number of pieces added to the scale platform (normal counting). The count value is determined
by dividing the net or gross weight (as selected) by the average piece weight.

INSUFFICIENT SAMPLE

The INSUFFICIENT SAMPLE annunciator is located between the display and the numeric
keypad and shows that the sample selected is too small to calculate an accurate piece weight. If
a counting function is continued by pressing the COUNT key a second time without increasing
the sample size, the INSUFFICIENT SAMPLE annunciator will flash. Note that increasing the
sample size by the amount indicated prior to pressing the COUNT key a second time, will turn off
the INSUFFICIENT SAMPLE annunciator and result in an accurate piece weight.

BATTERY LOW

The BATTERY LOW annunciator is used with the battery operation and will flash slowly to
indicate that the internal battery requires charging. If continued use furthers drains the battery,
the annunciator will stop flashing and stay on continuously. No change in operation will occur
until just before the battery voltage drops to a level where operation is affected. At this level, the
scale will automatically turn itself off. Note that when the scale is charging the battery,
BATTERY LOW annunciator will flash until charging has been completed.

REMOTE SCALE

The REMOTE SCALE annunciator is illuminated when the optional remote scale platform has
been selected for use. The remote scale is selected by pressing the REMOTE SCALE key.

POWER ON

The Power Switch is located on the right side panel towards the front of the scale. Place the
power switch in the on position. The scale will perform a brief lamp test. This test consists of
illuminating all display segments and annunciator LED's for approximately three (3) seconds to
allow the operator to make a visual verification that the display is operational. After completion
of the lamp test, the scale will display the model number and software revision level, then the
weight display will show zero weight, indicating the scale is ready for use.

11