Cardinal 205 Installation And Technical Manual

205

•

•

WEIGHT INDICATOR

INSTALLATION and TECHNICAL MANUAL

8200-M024-O1 Rev G
10/09
www.cardinalscale.com

Technical Support: Ph: 866-254-8261 y [e-mail]

8200-M024-O1 Rev G y 205 Installation & Technical

PO BOX 151

PH [phone]

WEBB CITY, MO 64870

Printed in USA

FAX [phone]

1

2

8200-M024-O1 Rev G y 205 Installation & Technical

TABLE OF CONTENTS

ELECTRICAL

WARNING

STATIC

SENSITVE

SPECIFICATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 1

Standard Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 2
Optional Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 2

Certifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Page 2
EUROPEAN DECLARATION OF CONFORMITY - - - - - - - - - - - - - - - - - - - - - - - - - - Page 3
PRECAUTIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Page 4
SITE PREPARATION REQUIREMENTS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 4
INSTALLATION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 6

MOUNTING - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Page 6

LOAD CELL CONNECTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 7

LOAD CELL CONNECTIONS WITH OVER 30 FEET OF CABLE - - - - - - - - - - - - -Page 8

SERIAL I/O CABLE INSTALLATION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Page 9

OPTICALLY ISOLATED INPUTS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 9

MAIN PCB (Figure No. 7) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 10

MAIN PCB JUMPERS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 11

RE-INSTALLING THE REAR PANEL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 11
KEYPAD FUNCTIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 12
ANNUNCIATORS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 15
SETUP AND CALIBRATION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Page 16
SETUP REVIEW - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 33
CALIBRATION "C" NUMBERS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Page 33
ACCUMULATORS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Page 34
BEFORE YOU CALL SERVICE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 35
ERROR CODES - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 36
CALIBRATION SEAL INSTALLATION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 38
PART IDENTIFICATION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Page 39

APPENDIX A: MODEL 205DC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Page 43

SERIAL NUMBER _____________________

DATE OF PURCHASE _________________

PURCHASED FROM __________________

____________________________________

____________________________________

____________________________________

RETAIN THIS INFORMATION FOR FUTURE USE

PRECAUTIONS

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

IMPORTANT

8200-M024-O1 Rev G y 205 Installation & Technical

I

I

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.

PROPER DISPOSAL

When this device reaches the end of its useful life, it must be properly disposed of. It must not
be disposed of as unsorted municipal waste. Within the European Union, this device should
be returned to the distributor from where it was purchased for proper disposal. This is in
accordance with EU Directive 2002/96/EC. Within North America, the device should be
disposed of in accordance with the local laws regarding the disposal of waste electrical and
electronic equipment.

It is everyone’s responsibility to help maintain the environment and to reduce the effects of
hazardous substances contained in electrical and electronic equipment on human health.
Please do your part by making certain that this device is properly disposed of. The symbol
shown below indicates that this device must not be disposed of in unsorted municipal waste
programs.

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.

II

II

8200-M024-O1 Rev G y 205 Installation & Technical

SPECIFICATIONS

Power Requirements: 90 to 264 VAC (50/60 Hz) at 0.4A
Enclosure Type: NEMA 4X/IP66
Enclosure Size: 9 3/16" W x 7 1/2" H x 3 1/8" D

(233mm W x 191mm H x 79mm D)
Weight: 8.2lbs - (9.6lb with battery)
Operating Environment: Temperature: 14 to 104 ºF (-10 to +40 ºC)

Humidity: 90% non-condensing (maximum)
Display: Six digit, seven segment, 0.6" high LED
Transducer Excitation:
(Jumper selectable)
Signal Input Range: 1.0 mV min. to 40 mV max. (with dead load boost)
Number of Load Cells: 8 each, 350 OHM minimum resistance
Load Cell Cable Length: 1500 feet maximum. Consult factory for other requirements

Division Value: 1, 2, or 5 x 10, 1, 0.1, 0.01, 0.001 commercial

Sensitivity:

NON-COMMERCIAL
NTEP
CANADA
OIML

Scale Divisions:

NON-COMMERCIAL
NTEP
CANADA

OIML
Internal Resolution: 1 part in 16,777,216
Tare Capacity: Scale Capacity
Sample Rate: 1 to 100 samples per second, selectable
Auto Zero Range: 0.5 or 1 through 9 divisions
Weighing Units: Tons, Pounds, Pounds-Ounces, Ounces,

Keypad: Color coded Membrane type, 7 keys
Standard I/O: (1) bi-directional RS232 (20mA)

Battery Operation: 205EU - CAM-350 Type, 12V 2Ah

12 VDC
8 VDC with battery operation (jumper selectable)

30 feet maximum without sense lines

0 to 99, non-commercial

0.15 uV/e

0.3uV/e (Class III/IIIL)

0.3uV/e (Class III/IIIHD)

0.7 uV/e (Class III)

100 to 240,000
100 to 10,000 (Class III/IIIL)
100 to 10,000 (Class III/IIIHD)
100 to 10,000 (Class III)

Metric Tons, Kilograms, Grams

(1) output only RS232 (20mA)

CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.

ATTENTION: RISQUE D'EXPLOSION SI LA BATTERIES EST REMPLACE'E PAR UN
TYPE INCORRECT. REJETEZ LES BATTERIES UTILISE'ES SELON LES
INSTRUCTIONS.

8200-M024-O1 Rev G y 205 Installation & Technical

1

SPECIFICATIONS, CONT.

Standard Features:

• Push button tare function

• Gross, tare, net conversion

• Selectable key lockout

• Hi-Resolution mode

• Adjustable filtering

• Gross and Net accumulators

• Dual serial ports

• Remote input lines for Zero, Tare, Gross and Print (1000 feet maximum)

• Programmable print format using Visual Print or nControl (2 Visual Tickets available)

• SMA level 2 compliant serial communications
(For more information see http://www.scalemanufacturers.org)

• Field re-programmable via PC interconnection

• Test feature (performs display and internal tests)

• Auto Shutoff and Sleep modes

• Battery operation
(Requires additional hardware and includes additional documentation)

Optional Features:

Analog Output*, Allen-Bradley Interface*, 10/100 mbps Ethernet Adapter*, Additional Serial
Port*, Internal Relay Box*, External Relay Box*, Special Filtering, and Column Mounting

*This feature requires additional hardware and includes additional documentation.

Certifications:

This equipment is certified to comply with the requirements for a Class III/IIIL device by the

• National Conference on Weights and Measurements (Certificate No. 01-011)

• Measurement Canada (Approval No. AM-5397)

• And for a Class III device by OIML R-76 (Certificate No. DK 0199.47).

2

8200-M024-O1 Rev G y 205 Installation & Technical

EUROPEAN DECLARATION OF CONFORMITY

Manufacturer: Cardinal Scale Manufacturing Company

PO Box 151
203 East Daugherty
Webb City, Missouri 64870 USA
Telephone No. [phone]
Fax No. [phone]

Product: Non-automatic Weight Indicating Instrument

Model Numbers 200, 205, 210, 210FE, 215, 220 and 225
Serial Number EXXXYY-ZZZ

where XXX = day of year

YY = last two digits of year
ZZZ = sequential number

The undersigned hereby declares, on behalf of Cardinal Scale Manufacturing Company of
Webb City, Missouri, that the above-referenced product, to which this declaration relates, is in
conformity with the provisions of:

European Standard EN 45501: 1992 and equivalent International
Recommendation OIML R76, edition 1992
EU Type Approval Certificate Number DK 0199.159
Report No. DANAK-1910304

Council Directive 2006/95/EC Low Voltage Directive
as amended by Council Directive 93/68/EEC (22 July, 1993)

Council Directive 90/384/EEC (20 June, 1990) on the Harmonization
Of the Laws of Member States relating to non-automatic weighing
Systems as amended by:
Council Directive 93/68/EEC (22 July, 1993)

European Standard EN50082: 1995 for radiated emissions and
European Standard EN50082-2: 1995 Class B for EMC immunity.

The Technical Construction File required by this Directive is maintained at the corporate
headquarters of Cardinal Scale Manufacturing Company, 203 East Daugherty, Webb City,
Missouri.

____________________

Ginger Harper
Director, Quality Assurance

8200-M024-O1 Rev G y 205 Installation & Technical

3

Static Electricity

CAUTION! This device contains static sensitive circuit cards and components.

Improper handling of these devices or printed circuit cards can result in damage to or
destruction of the component or card. Such actual and/or consequential damage IS
NOT covered under warranty and is the responsibility of the device owner. Electronic
components must be handled only by qualified electronic technicians who follow the
guidelines listed below.

ATTENTION! ALWAYS use a properly grounded wrist strap when handling,
removing or installing electronic circuit cards or components. Make certain that the
wrist strap ground lead is securely attached to an adequate ground. If you are
uncertain of the quality of the ground, you should consult a licensed electrician.

ALWAYS handle printed circuit card assemblies by the outermost edges. NEVER
touch the components, component leads or connectors. ALWAYS observe warning
labels on static protective bags and packaging and never
component from the packaging until ready for use. ALWAYS store and transport
electronic printed circuit cards and components in anti-static protective bags or
packaging.

SITE PREPARATION REQUIREMENTS

PRECAUTIONS

remove the card or

The Cardinal 205 indicator is a precision weight-measuring instrument. As with any precision
instrument, it requires an acceptable environment to operate at peak performance and
reliability. This section is provided to assist you in obtaining such an environment.

Environmental

The Model 205 indicator meets or
exceeds all certification requirements
within a temperature range of 14 to 104 °F
(-10 to +40 °C).

In order to keep cooling requirements to a
minimum, the indicator should be placed
out of direct sunlight and to provide
adequate air circulation, keep the area
around the indicator clear.

Make certain the indicator is not directly in
front of a heating or cooling vent. Such a
location will subject the indicator to
sudden temperature changes, which may
result in unstable weight readings.

Insure that the indicator 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.

4

8200-M024-O1 Rev G y 205 Installation & Technical

SITE PREPARATION REQUIREMENTS

Electrical Power

The 205 indicator has been designed to operate from 90 to 264 VAC at 50/60 Hz. Note that a
special order is not

CAUTION! - To avoid electrical hazard and possible damage to the indicator,
DO NOT, under any circumstance, cut, remove, alter, or in any way bypass the
power cord grounding prong.

 The socket-outlet supplying power to the indicator should be on a separate circuit from the

distribution panel and dedicated to the exclusive use of the indicator.

 The socket-outlet shall be installed near the equipment and shall be easily accessible.

Note that the power cord on the 205 (without the Battery Option) serves as the power
disconnect.

 The wiring should conform to national and local electrical codes and ordinances and should

be approved by the local inspector to assure compliance.

 On installations requiring 230 VAC power, it is the responsibility of the customer to have

a qualified electrician install the proper power cord plug that conforms to national electrical
codes and local codes and ordinances.

Electrical Noise Interference

To prevent electrical noise interference, make certain all other wall outlets for use with air
conditioning and heating equipment, lighting or other equipment with heavily inductive loads,
such as welders, motors and solenoids are on circuits separate from the indicator. Many of
these disturbances originate within the building itself and can seriously affect the operation of
the indicator. These sources of disturbances must be identified and steps must be taken to
prevent possible adverse effects on the indicator. Examples of available alternatives include
isolation transformers, power regulators, uninterruptible power supplies, or simple line filters.

required for operation at 230 VAC.

Transient Suppression

The following recommendations will help to reduce transients:

y Always use shielded cables to connect signal wires to the weight indicator.

y Secure the cables in the cable clips provided inside the indicator.

y Connect the cable shield (indicator end only) to a ground point inside the indicator. Keep

wires that extend beyond the shield as short as possible.

y Do not run load cell or signal cables from the weight indicator along side or parallel to

wiring carrying AC power. If unavoidable, position the load cell and signal cables a
minimum of 24" away from all AC wiring.

y Always use arc suppressors across all AC power relay contacts (see recommendations at

http://www.paktron.com/pdf/Quencharch_QRL.pdf

y Use zero voltage switching relays, optically isolated if possible.

).

8200-M024-O1 Rev G y 205 Installation & Technical

5

INSTALLATION

Battery Access Cover

Load Cells

Before beginning installation of your Model 205 Weight Indicator, make certain that the
indicator has been received in good condition. Carefully remove the indicator 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.

Mounting

NOTE! Should your 205 indicator come already installed on a scale, the following information

describing the installation of the indicator does not apply.

The Model 205 indicator is housed in a NEMA 4X/IP66 stainless steel wall or desk-mount
enclosure. The gimbal may be mounted on a desktop or other smooth, flat, horizontal surface
or may be mounted on a wall. Refer to Figure No. 1 for a layout of wall-mounting bolts.

+

If wall mounted, make certain the mounting surface is strong enough to support the indicator.
The mounting location should be where the display is easily viewed while being close enough
to provide the operator easy access to the keypad. Carefully lay out the mounting hole
locations, then drill and install the anchor bolts. Attach the gimbal to the wall and securely
tighten the retaining bolts.

6.00"

Clearance for
#10 size screw

+

Figure No. 1

6

8200-M024-O1 Rev G y 205 Installation & Technical

Figure No. 2

INSTALLATION, CONT.

Load Cell Connection

CAUTION! Disconnect any external load cell power supply before connecting

load cells to the indicator. Failure to do so will result in permanent damage to the
indicator.

Load Cell Cable Connection for RFI Suppression

The load cell cable should be routed through the special metallic gland connector and the
shield wire must be connected to this gland connector for grounding and to eliminate RFI.
Refer to Figure No. 2 and Figure No. 3 for the appropriate gland connector.

1. If using a battery, remove the three acorn
nuts securing the Battery Access Cover to
the bottom of the indicator and remove the
battery.

2. After removing the battery, remove the 12
acorn nuts securing the back panel to main
housing.

3. Loosen and remove the metal gland
connector nut and remove the plastic insert.

4. Route the load cell cable through the nut and
plastic insert and into the enclosure.

5. With the load cell cable routed into the
enclosure, remove approximately 18 to 20
inches of the outer insulating jacket from the
cable exposing the internal wires.

6. Cut the shield wire so that it extends past the
outer jacket approximately 3/4 inch.

7. Remove 1/4" of insulation from the end of
each of the 4 wires (without sense leads) or 6
wires with sense leads (refer to figure No. 4).

8. Connect each of the wires to terminal block
P1 referring to labels on circuit board for
terminal connections. Refer to Figure No. 7
for terminal block location.

9. To terminate a wire, press down on release
bar for the terminal, insert wire into terminal
opening then allow release bar to return to its
original position, locking wire in place.
Repeat procedure until all wires are in place.

10. Route load cell cable wires through the two
cable clips provided on upper and left sides
of enclosure interior.

Figure No. 3

Figure No. 4

TERMINAL NO. Function TERMINAL NO. Function

1 + EXCITATION 5 - SIGNAL
2 + SENSE 6 - SENSE
3 + SIGNAL 7 - EXCITATION

NOTE! If the sense leads are NOT used, you must install plug-in jumpers at J4 and J5
adjacent to the terminal block. These jumpers attach the sense leads to the excitation leads.
If sense leads ARE used (as in motor truck scales), these plug-in jumpers should be positioned
on one plug-in pin only or removed and stored for later use (see Figure No. 8).

8200-M024-O1 Rev G y 205 Installation & Technical

LOAD CELL TERMINAL BLOCK P1

7

INSTALLATION, CONT.

Load Cell Cable Shield Wire Connection for RFI Suppression

1. After all terminations have been made, remove
the excess cable from the enclosure.

2. Referring to Figure No. 5, fold the shield wire
back over the plastic insert and then insert the
plastic insert (with the shield wire) into the gland
connector.

3. The shield wire is secured when tightening the
gland connector nut.

4. Do not over-tighten the connector but make
certain it is snug.

5. DO NOT USE TOOLS! Finger tighten only!

Load Cell Cable Connection (Standard Gland Connector)

The following instructions describe the load cell connection should it be desired to route the
load cell cable through a standard gland connector. If a standard gland connector is used, the
shield wire should be connected to the threaded stud inside the indicator enclosure.

1. Remove the 12 acorn nuts securing the back panel to main housing, then loosen a gland
connector for the load cell cable. Refer to Figure No. 2 for illustration of connector layout.

2. Slip the single cable from the load cell or load cell junction box through the gland connector
and into the enclosure.

3. Remove 3" of the outer insulation jacket then remove 1/4" of insulation from each of the 4
wires and shield (without sense leads) or 6 wires and shield (with sense leads). Refer to
Figure No. 4.

4. Connect each of the wires to terminal block P1 referring to labels on circuit board for
terminal connections. Refer to Figure No. 7 for terminal block location.

5. To terminate a wire, first press down on release bar for the terminal, insert wire into
terminal opening then allow release bar to return to its original position, locking wire in
place. Repeat procedure until all of wires are in place.

6. Route load cell cable through the two cable clips provided on upper and left sides of
enclosure interior.

Figure No. 5

Load Cell Cable Shield Wire Connection (Standard Gland Connector)

The load cell cable shield wire should be connected to the
threaded stud inside the indicator. This stud is located on
the top inside of the indicator near the load cell connector
P1. See Figure No.6.

The shield wire should be wrapped around the stud
between the 2 flat washers and secured using hex nut.

Load Cell Connections With Over 30 Feet Of Cable

For installations with over 30 feet of cable between the indicator and the load cells, sense
wires should be used. The sense wires must be connected between the +SENS, -SENS
terminals on the indicator and the +EXCITATION, -EXCITATION wires of the load cells or the
+SENS, -SENS terminals of the load cell trim board or the section seal trim board.

8

8200-M024-O1 Rev G y 205 Installation & Technical

Threaded Stud

P1 Load Cell

Figure No. 6

INSTALLATION, CONT.

Serial I/O Cable Installation

The 205 indicator may be connected to a printer to record weight and associated data or it may
be connected to a remote display or even to a computer for transmission of weight data. The
weight data may be transmitted on demand (pressing the PRINT key or on receipt of a
command from the computer). Refer to the Setup, SIO Serial I/O section of this manual.

1. Remove the 12 acorn nuts securing the back panel to main housing, then loosen a gland
connector for the serial cable. Refer to Figure No. 2 for illustration of connector layout.

2. Slip the serial cable through the gland connector and into the enclosure.

3. Remove 2" of the outer insulation jacket then remove 1/4" of insulation from each of the
wires (refer to Figure No. 4).

4. Connect each of the wires to the Serial Data terminal block (P11) referring to Figure No. 7
for terminal block locations.

5. To terminate, first press down on the release bar for the terminal, insert the wire into the
opening then allow the release bar to return to its original position, locking the wire in place.
Repeat the procedure until all of the wires are in place.

BI-DIRECTIONAL SERIAL INTERFACE SERIAL OUTPUT

TERMINAL NO.

1 TXD 1 - RS232 5 TXD 2 - RS232
2 RXD 1 - RS232 6 TXD 2 – 20 mA Active
3 TXD 1 – 20 mA Active 7 GROUND
4 GROUND

Function TERMINAL NO. Function

Optically Isolated Inputs

Included with the I/O are 4 programmable inputs that may be used to remotely (up to 100 feet)
initiate various functions within the indicator. These inputs are accessed via a terminal block
(P9) on the back of the PC board (see Figure No. 7). The 4 inputs are defined as follows:

TERMINAL NO.

1 Gross
2 Print
3 Zero
4 Tare
5 Common

NOTE! The input must be connected to Gnd to initiate the function.

Function

8200-M024-O1 Rev G y 205 Installation & Technical

9

Main PCB

INSTALLATION, CONT.

10

8200-M024-O1 Rev G y 205 Installation & Technical

Figure No. 7

INSTALLATION, CONT.

Main PCB Jumpers

J1 – BATTERY CHARGE MODE

Place jumper J1 in the F
only recharging the battery pack when it is low. Place jumper J1 in the T
operating the indicator from commercial power and using the battery pack to supply power only
in the event of a power loss.

J2 – AUTO-ON JUMPER

The AUTO-ON jumper J2, when connected, will cause the indicator to power on automatically
whenever power is applied to the power input connector. If power is lost momentarily and then
reapplied, the indicator will turn on without pressing the ON key.

J3 – 8V EXCITATION JUMPER

The 8V EXCITATION jumper J3, when connected, sets the load cell excitation voltage to 8V
for operation with the 12 VDC battery. To operate from the 12 VDC battery, the load cell
excitation voltage MUST be set to 8 VDC (J3 closed). Battery operation with the load cell
excitation voltage set to 12V will result in an unstable weight display.

J4 AND J5 – SENSE JUMPERS

If the sense leads are NOT used, you must install plug-in jumpers at J4 and J5 adjacent to the
terminal block. These jumpers attach the sense leads to the excitation leads. If sense leads
ARE used (as in motor truck scales), these plug-in jumpers should be positioned on one plug­in pin only or removed and stored for later use.

ull position when operating the indicator totally from battery power and

rickle position when

J10 – DEAD LOAD BOOST JUMPER

For very low dead loads (less than 10% of the combined load cell capacity) connect the dead
load boost jumper J10 on the printed circuit board.

J11 – 12V PWC SRC (SOURCE)

The J11 jumper, when connected (CLOSED) supplies 12 VDC @ 25mA from the 205 indicator
to a solid-state relay or other load of 200 ohms or greater. When J11 is OPEN (positioned on
one plug-in pin only or removed), the 12 to 24 VDC must be provided from an external source
to P10-6. The load must still be 200 ohms or greater.

Re-Installing The Rear Panel

After all terminations have been made, remove the excess cable from the indicator enclosure
and securely tighten each of the cable gland connectors. Do not over-tighten these connectors
but make certain they are snug. DO NOT USE TOOLS! Finger tighten only! Insure any
unused gland connectors are plugged.

1. Make certain no cables or wires are exposed between the main housing and rear panel and
then place the rear panel onto the main housing.

2. Secure with the 12 acorn nuts removed earlier. Follow a diagonal pattern when tightening
the acorn nuts.

3. If using a battery, slide the battery into the opening, until you feel resistance and the edge
of the battery is flush with the bottom of the indicator.

4. Replace the Battery Access Cover and install the three acorn nuts removed earlier,
securing the battery in place.

8200-M024-O1 Rev G y 205 Installation & Technical

11

KEYPAD FUNCTIONS

The Model 205 is equipped with a 7-key keypad. The keypad is used to enter commands and
data into the indicator. This section describes each key along with its normal function. It is
helpful to refer to the actual indicator while reading this section.

Figure No. 8

DO NOT operate the keypad with pointed objects (pencils, pens, etc).
Damage to keypad resulting from this practice is NOT covered under warranty.

ON/OFF KEY

This key performs two functions. Pressing it when the indicator is off will apply power to the
indicator. If the indicator is already on, pressing this key will turn the indicator off.

ZERO KEY/

REVIEW

Pressing this key will cause an immediate zeroing of the weight display up to the selected limit
of 4% or 100% of the scale’s capacity. This selection is made during the setup and calibration
of the indicator. Note the indicator will not respond to this command unless the weight display
is stable.

Pressing the ASTERISK key before the ZERO KEY/

REVIEW key will enter the Review

mode of Setup and Calibration. Refer to the Setup Review section of this manual.

TARE/

ENTER

Pressing the TARE key alone will store the current gross weight as the new tare weight and
the weight display will change to the net weight display mode (

Pressing the ASTERISK key before the TARE/

ENTER key serves two purposes. First,

when reviewing setup parameters, pressing the TARE/
current setting of the parameter. Second, the TARE/

Net annunciator will turn on).

ENTER key will display the

ENTER key is used to signal

completion of the entry of data and causes the indicator to process the data entered.

12

8200-M024-O1 Rev G y 205 Installation & Technical