Detecto AS-300D Series Owner's Manual

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A Division of Cardinal Scale Manufacturing Co.

AS-300D Series

Smart Bench Scales

Owner’s Manual

8527-M214-O1 Rev B

01/03

PO BOX 151 • WEBB CITY, MO 64870

417-673-4631

Printed in USA

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INTRODUCTION

The AS-300 series Smart Bench Scales consist of the AS-300D and AS-350D. The AS-300D is a 100 pound capacity bench scale while the AS-350D model is a 150 pound capacity scale. Both models have a 12" x 14" stainless steel platform. The scales are equipped with a bi-directional RS232C compatible port for communication with a variety of peripheral devices.

TABLE OF CONTENTS

Installation ....................................................1

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

Data Output/Command Format ....................2

Maintenance .................................................3

Part List ........................................................4

Part Identification ..........................................5

This owner’s manual is provided to describe the operation and interfacing requirements for these scale models. The AS-300D and AS-350D models include an integral vacuum fluorescent 7-segment weight display. Both scales may be equipped with an optional ball transfer deck allowing them to be placed at the end of a conveyer.

The AS-350D is shipped from the factory in the following configuration:

Pounds/Ounces Mode Selected 9600 Baud 8 Data Bits No Parity 1 Stop Bit

FCC COMPLIANCE STATEMENT WARNING! This equipment generates, uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions 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 is likely to cause interference in which case the user at his own expense will be required to take whatever measures necessary to correct the interference.

LIST OF FIGURES

Figure No. 1 ............Scale Installation

Figure No. 2 ............Part Identification

All rights reserved. Reproduction or use, without express 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 book, we assume no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the 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, we are not able to guarantee the result of any procedure contained herein. Nor can we assume responsibility for damage to property or injury to persons occasioned from the procedures. Persons engaging the procedures do so entirely at their own risk.

PRECAUTIONS

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

IMPORTANT ELECTRICAL

SERIAL NUMBER

DATE OF PURCHASE

PURCHASED FROM

WARNING

RETAIN THIS INFORMATION FOR FUTURE USE

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INSTALLATION

On receipt of your AS-300 series scale, carefully unpack the scale removing all packing material. Examine the scale to make certain that there is no shipping damage. Should damage be discovered contact the shipping company as soon as possible. The packing material and shipping carton should be retained for possible examination by the shipping company.

Determine where the scale is to be located. It should be a smooth surface capable of supporting both the scale and any load apt to be placed on the scale. It should not be in direct sunlight nor should it be subject to air flow from heating/cooling vents, fans or similar devices.

Place the scale in the chosen location and remove the stainless steel commodity tray. The tray can be removed by lifting upward on it removing it from the weighbridge. Locate the small level indicator on the weighbridge and check to make certain that the scale is level. If the level indicator does not show a level indication, the mounting feet should be adjusted to obtain a level condition. To adjust a mounting foot, first loosen the lock nut then turn the mounting foot in the required direction to raise or lower that corner of the scale. Once a level condition has been achieved, secure the mounting foot settings by tightening each of the lock nuts. Replace the commodity tray on the weighbridge. Refer to Figure No. 1 for additional information.

Make certain that the power switch on the rear of the scale is in the OFF position then plug the power cord into a 115 vac grounded polarized power outlet and make certain that the power cord is not in the way of normal traffic. The socket-outlet shall be installed near the equipment and shall be easily accessible. If you are unsure whether your power outlet is correct, you should consult a qualified electrician. Turn the power switch to the ON position.

If the display illuminates with a display segment test, installation of the scale is complete. If not, check to make sure that the power outlet and the scale fuse are good.

Weighbridge

Commodity

Tray

Indicator

Capacity Label

SCALE INSTALLATION

Figure No. 1

Level

Zero Button

Locking Nut

Weight Display

Mounting

Foot

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SPECIFICATIONS

Platform Size: ...............................................................12" x 14"

Capacity:

AS-350D ............................................................150 lb

AS-300D ............................................................100 lb

Division Size:

AS-300D ............................................................0.5 oz

AS-350D

Pounds/Ounces Mode:

0-5 lb .......................................................0.1 oz

5 to 100 lb ...............................................0.5 oz

100 to 150 lb ...........................................1 oz

Pounds Only Mode (option) .........................0.02 lb

Pounds Only Mode (high resolution,option) .0.002 lb

Load Cell Capacity: .....................................................200 lb

Temperature Range: ....................................................-10° to +40°C

Calibration: ...................................................................Digital

External Controls: .........................................................Zero Button

Display: .........................................................................LED

7 segment - 0.5" high

Options: ........................................................................Ball Top Transfer

DATA OUTPUT/COMMAND FORMAT

The following describes commands that may be sent to the scale via its serial port and the format of the weight and status data transmitted by the scale. Note that the commands are divided into two groups: those used in the optional pounds only mode (only for AS-350D) and those used in the pounds/ounces mode (both models). All commands are the ASCII equivalent and transmitted to the scale.

Pounds Only Mode Selected (Optional-AS-350D only)

W=> Standard Resolution Request to Transmit Scale Weight

(This command can only be used when the scale mode has been set to the Pounds Only Mode)

Scale Output Format: <STX>Snnn.nn<CR>

where:

<STX> = ASCII STX nnn.nn = scale weight in pounds with decimal point <CR> = Carriage Return

If the scale weight is below zero, over capacity, in motion or at center-of-zero, then the status word is returned in place of the scale weight. See the Status Request Section for the format of the scale status character.

H=> High Resolution Weight Request to Transmit Scale Weight

(This command can only be used when the scale mode has been set to the Pounds Only Mode)

Scale Output Format: <STX>nnn.nnn<CR>

where:

<STX> = ASCII STX nnn.nnn = scale weight in pounds with decimal point <CR> = Carriage Return

If the scale weight is below zero, over capacity, in motion, or on center-of-zero, then the status word is returned in place of the weight.

Z=> Zero Scale Weight Command

(resets scale weight to zero)

A=> Status Word Request

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The status word is transmitted in the following format:

1 = Motion 0 = No Motion 1 = Over Capacity 0 = Not Over Capacity 1 = Below Zero 0 = Zero or Above 1 = Center of Zero 0 = Not at Center of Zero

Pounds/Ounces Mode Selected (Both Scale Models)

ASCII SO (%0E) => Enable Continuous Output

ASCII SI (%0F) => Disable Continuous Output

ASCII ~ (%7E) => Transmit Weight in Pounds/Ounces Mode

Data Format: <STX>bPPPbLBb00.0bOZbXCC<ETX>

where:

<STX> = ASCII STX b = ASCII Space PPP = Weight in Pounds LB = Text Indicating Pounds

00.0 = Weight in Ounces OZ = Text Indicating Ounce X = Status Character

M = Motion

B = Below Zero

C = Over Capacity

CC = Checksum Byte

0110XXXX

^^^^

Disable On-Demand Output

Enable On-Demand Output

Checksum Byte - All hexadecimal digits up to but not including the checksum are exclusive-or’d with each other to form a checksum byte. The byte is further split into two nibbles with the high nibble first. Each nibble is or’d with an ASCII 0 (%30) to produce the final ASCII checksum value.

ASCII EOT (%04) =>Version Request Command

Causes the scale to transmit scale software revision level in the

following format: <STX>VVVCC<ETX>

where:

<STX> = ASCII STX VVV = 3 Digit Revision Level CC = Checksum Digits <ETX> = ASCII ETX

The checksum digits (CC) are formed by exclusive or-ing all three version number digits (VVV) to produce a checksum byte. This byte is then split into two nibbles with the high nibble transmitted first. Each nibble is or’d with an ASCII 0 (%30) to form the final ASCII checksum representation.

MAINTENANCE

There are no user replaceable or serviceable parts contained within your AS-300 series scale. Do not disassemble the scale. Maintenance should be limited to cleaning the exterior of the scale enclosure with a damp cloth.

CAUTION! Make certain that you have turned the power switch to the OFF position and removed the power cord from the wall outlet before cleaning the scale.

Should you ever need to replace the fuse, make certain that only fuses of the same type and rating are used to ensure continued electrical protection. If you have any questions concerning service, you should contact your scale service representative.

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PART IDENTIFICATION

Please refer to Figure No.2 when placing an order for a part to ensure that you receive the correct part.

Item Qty Part No. Description

1 1 2950-C064-5A Load Cell Assy 2 1 8527-D206-0A Weighbridge 3 1 427R1313 Commodity Tray 4 1 *511R9458 Calibration Seal 5 1 8530-D014-6A Analog Board Assy 6 1 6910-5095 Power Switch 7 1 *8527-A216-PS Serial Tag 8 6 6021-0665 #6-32 X .375 Pan Head Screw

9 8 6680-0004 #6-32 Inside Star Washer 10 2 6013-0039 #6-32 Hex Nut 11 2 *6540-1005 Jack Socket 12 2 *6680-0052 #4 Lock Washer 13 2 *6013-0245 #4-40 Hex Nut 14 4 6540-1011 Leveler Screw 15 4 6540-1012 Cap, Snap-On 16 8 6024-0039 Lock Washer 17 8 6013-0045 1/4-20 Hex Nut 18 4 6007-2133 M10-35mm 19 1 8527-C370-0A Display Board 20 1 6690-0001 Level 21 1 8527-B217-0A Zero Cable Assembly 22 1 8527-C099-0A Cable Assembly 23 1 8527-D371-0A Controller Assembly 24 1 8527-C099-1A Serial Cable 25 1 8527-B205-08 Load Cell Spacer 26 1 8527-D201-08 Base Assembly 27 1 8527-D210-08 Top Cover 28 1 8527-C211-08 Display Overlay 29 1 6670-0003 RFI Filter Assy 30 1 6610-4046 Fuse Holder 31 1 6610-4019 1/4 AMP Slow Blow Fuse 32 1 8527-B122-0A AC Cable Assembly 33 1 6980-0008 Strain Relief Bshng 34 4 6021-0448 #4-40 X .75 Flat Head Screw 35 2 8527-B109-0A Cable Assembly 36 4 6680-0045 .25 X .14 X .25 Nylon Spacer 37 13 6021-0423 #4-40 X .25 Pan Head Screw 38 13 6680-0026 #4 Internal Star Washer 39 10 6021-0611 #6-32 X .25 Flat Head Screw 40 4 6021-1412 .25-20 X 1.5 Hex Head Screw 41 1 *593R1007 Factor Set Label (Located on Bottom) 42 1 8527-B213-0A Cable Assembly 43 2 6025-2045 #6-32 x .63 Flat Head Screw 44 1 8527-B123-0A Filter Ground Cable 45 1 6021-0801 #8-32 X 3/8 Machine Screw 46 1 8527-B221-08 Power Supply Insul 47 1 6024-1000 #8 Internal Star Washer 48 1 8541-C254-0A Ball Transfer Assembly (Option) 49 1 8540-B305-08 Cover 50 2 6021-1257 #8-32 X .375 Truss Head Screw 51 1 6021-1823 3/8-24 X .5 Set Screw 52 8 *6680-0145 Rivnut

*Not Shown

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PART IDENTIFICATION

Figure No. 2

30 31

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