Sterling scale Dw800 User manual

DW800/820 Operation Manual

STERLING SCALE COMPANY

DW800 HIGH ACCURACY WEIGHT INDICATOR

AND

820 HIGH ACCURACY PIECE COUNTER

USERS MANUAL

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DW800/820 Operation Manual

Table of Contents

Pages

INSTALLATION-------------------------------------------------------------------------------------------------------1 - 4

Unpacking/Inspecting 1

Load Cell Wiring 2

Universal Bracket 3

880/820 Assembl Drawing 3

Installing the Platter Assembl 2

Connecting External Power Suppl 2

Jumper Settings 4

OPERATION-----------------------------------------------------------------------------------------------------------5 - 6

Weighing Operation 5

Weigh Ke s 5

Counting Operations 6

Count Ke s 6

PARAMETER SETUP AND CALIBRATION------------------------------------------------------------------7 - 10

Parameter Setup 7

Parameter List with Parameter Explanation 7 - 9

Calibration Setup 9-10

PRINTERS--------------------------------------------------------------------------------------------------------------11

Ticket and Tape Printer Driver 11

Model 795 and 895 Printer Driver 11

Model LD-2 Printer Driver 11

COMMUNICATION------------------------------------------------------------------------------------------------- 12 - 16

RS-232 Serial Interface 12

RS-232 Connector 12

Output Protocol 12

Computer Output Format 143

Scoreboard Output Format 14

Remote Control Codes 14

External Zero Switch 14

SPECIFICATIONS--------------------------------------------------------------------------------------------------15 - 16

WARRANY INFORMATION--------------------------------------------------------------------------------------17

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DW800/820 Operation Manual

PLEASE READ BEFORE ASSEMBLY INSTALLATION

Unpacking and Inspecting

1. Upon receipt of the shipment, check for an shipping damage. If there is damage then

report it to our shipping carrier immediatel .

2. Carefull unpack all contents from the shipment.

3. Save all shipping material in case contents require transporting at a later date.

4. The content of the shipment should include the following:

Qty: Item:

1 Instrument with options installed.

1 External power suppl if desk mount or NEMA 1 enclosure is provided.

1 Instruction sheet.

1 Hardware kit.

If an of the above items are missing, contact our dealer immediatel .

Assembly

The instrumentation is shipped full assembled. If the unit shipped to ou is a desk mount

indicator, it contains a built-in scale and connecting the load cell is not necessar . If ou

received a wall mount, a stainless steel or a standard enclosure the load cell ma need to be

connected.

Connecting Load Cell

1. Disconnect power to the indicator.

2. Set the unit on a flat surface, open unit and locate “P4” on the lower part of the board.

3. Feed the load cell cable through the strain relief on the left.

4. Connect the load cell cable to the load cell interface connector, “P4” on the

circuit board.

5. Verif that jumpers “J2 and ”J3” are installed on the circuit board.

INSTALLATION

Page 1

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DW800/820 Operation Manual

Pin Name Description

1 +EX + Excitation voltage (+10 VDC)

2 +SN(+EX2) + Sense line

3 +SG + Signal line

4 -SG - Signal line

5 -SN(-EX2) - Sense line

6 -EX - Excitation voltage (GND)

7 SHD Shield

8 +SG2 Do not connect

9 -SG2 Do not connect

The load cell interface connector is “P4” on the circuit board,

located in the lower left hand corner.

Connecting External Power Supply

NEMA 1 enclosures are supplied with a transformer power suppl , which plugs into the wall.

Power Required – 117 VAC +/- 10 VAC, 60 Hz

NEMA 12 and NEMA 4 enclosures are supplied with a 6’ power cord with a standard 3-prong

connector.

Power Required – 117 VAC +/- 10 VAC, 60 Hz.

Desk enclosures are supplied with a transformer power suppl , which plugs into the back of

the instrument and the transformer plugs into the wall.

Power Required – 117 VAC +/- 10 VAC, 60 Hz

Mounting brackets are supplied with a NEMA 1 standard and NEMA 4 stainless steel

enclosures.

(See diagram on the next page for proper positioning)

INSTALLATION

Page 2

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DW800/820 Operation Manual

Desktop Enclosure Assembly Drawing

INSTALLATION

PAGE

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DW800/820 Operation Manual

Jumper Settings

In order for the 800/820 to operate as desired hardware, Jumpers must be set properl .

Most of the jumper setting’s are set correctl at the factor and never need to be altered, but

occasionall there is a need to alter a jumper setting, therefore the are shown below

Jumper List

Number Name Setting Description

J1 Back light On Back light on

Off Back light off

J2* Load Cell Sense (+) On Not using load cell sense wires (+)

Off Using load cell sense wires (+)

J3* Load Cell Sense (-) On Not using load cell sense wires (-)

Off Using load cell sense wires (-)

J4* EPROM 256 Use 27C256 EPROM

512 Use 27C512 EPROM

J5 Ground On Chassis ground tied to digital ground

Off Chassis ground not tied to digital ground

J6 RAM 2K Use 2K RAM

8K Use 8K RAM

J7 Not available

J8 NTEP/CTS NTEP Enable NTEP operation

CTS Enable CTS flow control

J9 RAM 8K Use 8K RAM

32K Use 32K RAM

*NOTE: Jumpers J2 and is J8 must both be either connected or disconnected to avoid

improper weighing and/or possible damage to the indicator.

INSTALLATION

Page 4

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DW800/820 Operation Manual

Weighing Operation

Weigh Keys: During weighing operations the ke s are used as follows:

OPERATION

PAGE 5

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The ZERO ke is used to return the scale to the center of zero.

The TARE ke is used to tare the weight on the scale. Place the

empt container on the scale and then press the TARE ke . The

displa will indicate the new weight.

The PRINT ke is used to print a weigh ticket.

The GROSS/NET ke is used to change the displa ed weight from

Gross Wt. (tare + net = gross) to the Net Wt.

(gross – tare = net).

The UNITS ke is used to switch between weights, units, lbs., kg.,

grams.

DW800/820 Operation Manual

Counting Operation

The Counting Operation cannot be accessed, if the NTEP parameter is set to True

(see parameter setup) or the Units of Weight parameter is set to LB/KG, LB/G, KG/G, or ALL.

The Count Operation is started b pressing and holding the UNIT ke . The indicator will toggle

thru all allowable sample sizes, starting with the current sample size. When the desired

sample size is displa ed release the UNIT ke . The indicator will sample the pieces and

displa the count.

Count Key Operation: During counting operations the ke are used as follows:

OPERATION

PAGE 6

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The ZERO ke is used to zero the scale.

The TARE ke is used to tare the weight on the scale. Place the

empt container on the scale and then press the TARE ke . The

displa will indicate the new weight.

The PRINT ke is used to print a weight ticket.

The GROSS/NET ke is used to change the displa ed weight from

Gross Wt. (tare + net = gross) to the Net Wt. (gross – tare = net).

The UNITS ke is used to switch count and weigh operation. If held

down the count displa will show the average piece weight.

DW800/820 Operation Manual

Parameter Setup Operation

Parameter Setup ma be accessed using the following method:

1. From the Weigh Mode press and hold the GROSS/NET ke . The DW800/820 displa s

“GRSNET” to signif that the GROSS/NET ke has been pressed. After approximatel

3 seconds the indicator displa s “PARAMS” at which time the ke ma be released.

NOTE: Jumper J8 must be removed from the NTEP position, if NTEP is being utilized, before

access to Parameter Setup is allowed.

2. Once access is allowed to Parameter Setup, the NTEP F parameter

is displa ed.

NOTE: NTEP value should alwa s be “F”, unless ou are using the NTEP standards.

3. Press the PRINT ke to select the desired parameter.

4. Press the TARE ke to select the value for the currentl selected

parameter.

5. Press the PRINT ke to save the currentl selected parameter.

6. Repeat steps 3 thru 5 until parameters are set as desired.

7. Press the GROSS/NET ke or RESET ke to exit Parameter Setup.

Parameter List

Name Values Description

NTEP F If NTEP operation not required

T If NTEP operation required

FCAL F If not calibrating and/or configuring indicator

(Calibration) T if calibrating and/or configuring indicator

NOTE: If True then the DW800/820 will start the calibration routine

PCT 0 Minimum load % disabled

(% of loading) 0.2 If minimum is .2% of full scale capacit

0.5 If minimum is .5% of full scale capacit

1 If minimum is 1% of full scale capacit

NOTE: The value is the minimum weight allowed for parts counting

MSQ 1 Allows an number of samples

(Minimum 2 2 samples required

sample 5 5 samples required

quantit ) 10 10 samples required

20 20 samples required

NOTE: The value is the minimum number of samples allowed for an entered sample

size.

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DW800/820 Operation Manual

PARAMETER SETUP AND CALIBRATION

PAGE 7

Name Values Description

ZT 0 Zero tracking disabled

(Zero Tracking) 0.2 Zero tracking at ± 0.2 graduations

0.6 Zero tracking at ± 0.6 graduations

1 Zero tracking at ± 1 graduations

3 Zero tracking at ± 3 graduations

NOTE: This scale will be re-zeroed within the chosen graduation

DA OFF Digital averaging disabled (Fast displa update)

(Digital Average LOW Digital averaging at low (Normal setting for

counting/weighing)

MED Digital averaging at medium Counting/weighing moderate

vibrations)

HI Digital averaging at high (Counting and/weighing

heav vibrations)

ZR 1.5 Zero range at 1.5 percent of full scale

(Zero Range) 100 Zero range at 100 percent of full scale

U LB. Pounds onl

(Units) KG Kilograms onl

G Grams onl

LB/KG Pounds to Kilogram conversion, counting operation is

disabled

LB/G Pounds to Grams conversion, counting operation is

disabled

KG/G Kilogram to Gram conversion, counting operation is

disabled

ALL Pounds, Kilogram, Grams conversion counting operation

is disabled

MB 0 Motion band disabled (Not recommended for normal

operations)

(Motion Band) 0.1 Motion band at 0.1 graduations (Most sensitive setting

counting)

0.2 Motion band at 0.2 graduations (Counting/weighing with

printer

0.3 Motion band at 0.3 graduations

(Counting/weighing with

printer)

0.4 Motion band at 0.4 graduations (Standard setting)

0.5 Motion band at 0.5 graduations

0.6 Motion band at 0.6 graduations

0.7 Motion band at 0.7 graduations

0.8 Motion band at 0.8 graduations

0.9 Motion band at 0.9 graduations (Least sensitive)

1.0 Motion band at 1.0 graduations (Least sensitive)

OF CMP Computer output format (See Data Interface Section)

(Output Format) SCB Scoreboard output format (See Data Interface Section)

290 Output format for 290 and 695 printers (See Printer Section)

795 Output format for 795 printers * (See Printer Section)

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DW800/820 Operation Manual

LD2 Output format for LD2 printers *(See Printer Section)

PARAMETERS SETUP AND CALIBRATION

PAGE 8

Name Values Description

CO F On demand output with PRINT ke

(Continuous Output) T Continuous output of data. T picall used for computers

or

scoreboards

RD 232 Serial interface is RS-232 (standard)

(Interface) or 20 mA Current Loop (optional)

422 Serial interface is RS-422 (optional)

485 Serial interface is RS-485 (optional)

B 150 Baud rate at 150 bits per second

(Baud Rate) 300 Baud rate at 300 bits per second

600 Baud rate at 600 bits per second

1200 Baud rate at 1,200 bits per second

24000 Baud rate at 2,400 bits per second

48000 Baud rate at 4,800 bits per second

9600 Baud rate at 9,600 bits per second

19200 Baud rate at 19,200 bits per second

P NONE Parit disabled

(Parit ) ODD Parit set for odd

EVEN Parit set for even

DBIT 7 Data bits at 7 bits

(Data Bits) 8 Data bits at 8 bits

FC F If not using flow control

(Flow Control) T If using flow control

STTN F If a station number is not required

(Station) T If a station number is required (Choose station 1 – 99)

SN F If the serial number does not need to be changed

(Serial Number) T If the serial number must be changed (Incremented

number for the output)

TIME F If not setting the time and date

(Option) T If setting the time and date

LOCK F If not locking ke board access to parameters

(Parameter Lockout) T If locking ke board access to parameters

Used in conjunction with Jumper J8 on the 800 - 820 boards

DR F Dual Range is disabled

(Dual Range) T Dual Range is enabled

Calibration Setup Operation

1. From the Weigh Mode press and hold the GROSS/NET ke . The

DW800/820

displa s “GRSNET” to signif that the GROSS/NET ke has been pressed. After

approximatel 5 seconds the indicator displa s “PARAMS”, at which time the ke

ma be released.

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DW800/820 Operation Manual

2. Once access is allowed to Parameter Setup, the NTEP parameter, along with its current

value is displa ed.

NOTE: NTEP should alwa s be set to F, unless used. Press the Print Ke to move to the next

parameter.

PARAMETER SETUP AND CALIBRATION

PAGE 9

. Press the PRINT key or ZERO key to select, FCAL, the scale

calibration and configuration parameter.

4. Next parameter “FCAL F” change to “FCAL T” using the TARE ke .

Press the PRINT ke to enter the Scale Calibration and Configuration mode.

5. The displa shows the current capacit of the scale (Example

“C00100”). The capacit ma be changed b using the UNITS, TARE, and ZERO and then

press the PRINT ke .

6. The displa shows the current graduation size (GR). The graduation size is changed b

pressing the TARE ke until the desired value is selected. When the desired graduation size

is selected press the PRINT ke .

7. The displa shows the current graduation size (U). Select the units to be used for calibrating

with the TARE ke . When the desired calibration unit t pe is selected, press the PRINT ke .

8. The displa shows “CAL F”. Select “CAL T” using the TARE ke . Press the PRINT ke

to begin calibrating.

9. The displa will repeatedl flash “CLEAR” and “SCALE”.

NOTE: Make sure there is no weight applied at this time. When the scale is clear press the

PRINT ke .

10. The displa shows “STEP A8”. The indicator will count down to “STEP A0” and then

displa

one of the following messages: “ENT LB”, “ENT KG”, or “ENT G”. Lightl Press the PRINT

ke to show ou the last amount of weight used to calibrate the indicator.

11. The indicator prompts for the calibration weight. The displa shows the current calibration

weight. Use the ZERO, TARE, and UNITS ke s to select the desired calibration weight. Once

the desired calibration weight is entered, place that weight on the scale and press the PRINT

ke .

12. The displa shows “STEP B8”. The indicator will count down to “STEP BO” .

13. The indicator is now at the Fine Span Adjust parameter, “SPN 00”.

14. Hit the GROSS/NET ke twice to exit parameter setup.

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DW800/820 Operation Manual

PARAMETER SETUP AND CALIBRATION

Page 10

Printer Drivers

The DW800/820 can be provided with the following optional print drivers. Each driver is

programmed specificall for each printer and will not work with an other printer.

Onl the computer and scoreboard outputs are available with an DW800/820 shipped without

a printer.

Ticket and Tape Printer Driver

DW800/820 Program Revision 4.21 – Ticket and Tape Printer Format - Part No. 9500

TIME 10:58 AM Output if time and date option installed

DATE 07-24-98 Output if time and date option installed

GROSS WT. 1.018 lb. *

TARE WT. 0.018 lb. *Output if a tare weight is entered

NET WT. 1.000 lb. *Output if a tare weight is entered

QUANTITY 10 pcs. *Output if in Count Mode

DW800/820 Program Revision 4.22 – Battery Operated Tape Printer Format - Part No. 8951

TIME 10:58 AM Output if time and date option installed

DATE 07-24-98 Output if time and date option installed

GROSS WT. 1.018 lb.

TARE WT. 0.018 lb. *Output if a tare weight is entered

NET WT. 1.000 lb. *Output if a tare weight is entered

QUANTITY 10 pcs. *Output if in Count Mode

DW800/820 Program Revision 4.2 – LD-2 Thermal Label Printer Format - Part No. 9504

TIME 10:58 AM Output if time and date option installed

DATE 07-24-98 Output if time and date option installed

GROSS WT. 1.018 lb.

TARE WT. 0.018 lb. *Output if a tare weight is entered

NET WT. 1.000 lb. *Output if a tare weight is entered

QUANTITY 10 pcs. *Output if in Count Mode

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DW800/820 Operation Manual

PRINTERS

Page 11

Serial Interface

The DW800/820 has the capabilit of using one of the following serial interface: RS-232,

RS-422, RS-485, and 20 mA Current Loop. These serial interfaces allow the indicator to be

connected to man different t pes of serial devices such as printers, computers, and

scoreboards. The standard DW800/820 is equipped with the most common of the serial

interfaces, RS-232.

Output Protocol Format

Baud Rate 150 to 19, 200 Parameter

Start Bits 1 Fixed

Date Bits 7 or 8 Parameter

Parit None, Odd, or Even Parameter

Stop Bits 1 Fixed

The format of the serial data is controlled using the following parameters: Baud Rate, Parit ,

and Data Bits.

RS-2 2

The RS-232 interface is the most commonl used of all serial interfaces and is standard on the

DW800/820. It is used in point-to-point communications where the transmission line is less

than 50 feet. If the RS-232 interface is to be used then the Serial interface parameter must be

set to RS-232 (See Parameter Setup).

Flow control ma be used with this interface to regulate the flow of data between the

DW800/820 and another serial device. To enable flow control, set the Flow Control parameter

to True (See Parameter Setup) and Jumper J8 to CTS. The Clear To Send (CTS) input must

then be connected to the compatible flow control output, usuall Data Terminal Read (DTR)

or Request To Send (RTS). The DW800/820 will now onl transmit when CTS is high.

RS-2 2 Connector Pin Assignments

Pin Name Description

01 ZERO External zero

02 Do not connect

03 Do not connect

04 RxD Receive data (input)

05 TxD Transmit data (output)

06 DTR Data Terminal Read (output)

07 CTS Clear To Send (input)

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DW800/820 Operation Manual

08 +5VDC +5 Volt DC power

09 GND Digital ground

10 SHIELD Shield

The RS-232 interface connector is P3 on the circuit board

COMMUNICATIONS

Page 12

Output Formats

The DW800/820 is capable of transmitting one of the following formats: Optional Printer

Output Format (See Printer Section), Computer Output Format, and Scoreboard Output

Format. A format ma be transmitted either on demand or continuousl (See Parameter

Setup). Motion is tested onl when transmitting the Printer Output Format on demand.

Computer Output Format

If the Computer Output Format is to be used then the Output Format parameter must be set to

CMP (See Parameter Setup).

The Computer Output Format is as follows:

STX Mode Value Pad Status Units CR LF

Name Characters Description

STX 1 ASCII Start of Text (02 Hex).

Mode 1 “G” if gross weight mode

1 “N” if net weight mode

1 “Q” if quantit (count) mode

Value 7 Displa ed weight or quantit

Pad 1 ASCII Space (20 Hex)

Status 1

1

Units 3

3

4

“M” if scale is in motion

“0” if scale is in overload. ASCII Space (20 Hex) if scale is stable

“lb.” if in weight mode and unit is pounds. “kg” if in weight mode and unit is kilograms. “g” if in

weight mode and unit is grams, “pcs” if in count mode.

CR 1 ASCII Carriage Return (OD Hex)

LF 1 ASCII Line Feed (OA Hex)

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DW800/820 Operation Manual

COMMUNICATION

Page 1

Scoreboard Output Format

If the Scoreboard Output Format is to be used then the Output Format parameter must be set

to SCB (See Parameter Setup).

The Scoreboard Output Format is as follows: Value CR LF

Name Characters Description

Value 7 Displa ed weight or quantit

CR 1 ASCII Carriage Return (0D Hex)

LF 1 ASCII Line Feed (0A Hex)

External Control

External Keys

The serial interface allows an external device to transmit data (external ke s) to the

DW800/820, which mimic the ke pad operation completel .

External Key ASCII Value Hex Value Decimal Value

ZERO a 81 097

PRINT b 62 098

UNITS c 63 099

TARE d 64 100

GROSS/NET 9 67 103

PARAMETERS z 7A 122

External Switch

An external switch is a hardware switch used to mimic a ke pad operation completel . The

DW800/820 allows for onl the ZERO external switch.

A momentar , normall open, switch must be connected between “Pin 01” and “Pin 09”.

External ZERO is activated when the switch is closed.

To avoid erratic operation the switch cable must be less than 10 feet.

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DW800/820 Operation Manual

COMMUNICATION

Page 14

Specifications

DW800 Physical Specifications

Material: NEMA 1 Enclosure – ABS DFA/R with EMI/RFI shielding

NEMA 4 Enclosure – Stainless steel

NEMA 12 Enclosure – Mild steel

NEMA 7 Enclosure – Cast aluminum

Dimensions: NEMA 1 Enclosure – 6.25” H x 9.5” W x 1.25” D

NEMA 4 Enclosure – 6.25”H x 9.5”W x 2.50”D

NEMA 12 Enclosure – 8.0”H x 10.0”W x 4.0”D

NEMA 7 Enclosure – 14”W x 14”W x 6.00”D

Weight: NEMA 1 Enclosure – 3 lbs.

NEMA 4 Enclosure – 7 lbs

NEMA 12 Enclosure – 10 lbs.

NEMA 7 Enclosure – 50 lbs

Power Requirement: NEMA 1 Enclosure – 12VDC, 500 mA

NEMA 4 Enclosure – 117 VAC ± 10VAC, 60 Hz

NEMA 12 Enclosure – 117 VAC ± 10VAC, 60Hz

NEMA 7 Enclosure – 117 VAC ± 10VAC, 60 Hz

820 Physical Specifications

Dimensions: 12.375” W x 16.55” D x 3.5” H

Power Requirements: 117 VAC ± 10 VAC, 60 Hz

Operating Temperature: -19°C (14 F) to 40° C (104 F)

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DW800/820 Operation Manual

SPECIFICATIONS

Page 15

Operational

Internal Counts: 18,777,215

Displa Counts: 10,000 recommended (50,000 maximum)

Displa Update Rate: 10 times per second

Input Sensitivit : 0.5uV per graduation

Linearit : 0.01% of full scale

Overload Capacit : 105% of full scale

Load Cell Excitation: 10VDC (9,350 ohm load cells or 16,750 ohm load cells)

Calibration

Method: Digital calibration

Range: 0.5 mV/V to 3.0 mV/V

Capacit : 2 to 500,000 lb., kg., or g

Display

T pe: 6, 14 segment LCD with 20 annuniciators

Enunciators: SCALE 1, 2, 3, 4 GROSS, NET, TARE k, g, lb., pcs,

SP3, SP2, SP1, LO BAT, M, -, ID,and ->0<-

Backlight: Yellow/Green LED

Serial Interface

T pe: RS-232 (bi-directional, full-duplex)

*RS-422 (bi-directional, half-duplex)

*RS-485 (bi-directional, half-duplex)

*20mA Current Loop (transmit onl )

Baud Rate: Selectable from 150 to 19,200 bits per second

Parit : Selectable from none, odd, or even

Data Bits: Selectable from 7 or 8 bits

Start Bits 1

Stop Bits 1

Flow Control Hardware flow control available for RS-232 onl

Options

* Batter Operation

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DW800/820 Operation Manual

* Time and Date

* RS-422, RS-485, or 20 mA Current Loop

* 4-20 mA or 0 – 10 VDC Analog Output

* 220 VAC, 50 Hz Operation

SPECIFICATIONS

Page 16

WARRANTY

Information

Sterling Scale Compan warrants that the DW800/820 shall be free of defects in material and

workmanship for a period of one (1) ear from date of shipment.

Sterling Scale Compan will repair or replace, at its discretion, free of charge (exclusive of

shipping costs), an equipment covered b this warrant .

This warrant DOES NOT appl if:

1. The DW 800/820 has been repaired or modified b an one other than Sterling Scale

Compan , if in their judgment such repair or modification has detrimentall effected

the performance or reliabilit of the product.

2. The DW800/820 has been improperl installed or not setup in accordance with the

instructions provided herein.

3. The DW800/820 has been mishandled, abused, or in the judgment of Sterling Scale

Compan has been exposed to an environment for which the product was not

designed.

This warrant constitutes Sterling Scale Compan ’s exclusive warrant , there being no other

warranties, expressed or implied, including an warrant of merchantabilit or fitness for a

particular purpose.

Sterling Scale Compan is not liable for an consequential damages.

Sterling Scale Compan reserves exclusive rights to warrant repair determination.

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DW800/820 Operation Manual

WARRANTY

Page 17

FCC NOTICE

This equipment generates, uses, and can radiate radio frequenc energ . If this equipment is

not installed and used in accordance with the instruction manual, it ma cause interference to

radio communications. This unit has been t pe tested and found to compl 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 in a commercial environment.

Operation of this equipment in a residential area is likel to cause interference, in which case

the user, at his own expense: will be required to take whatever measures ma be required to

correct the interference.

DISCLAIMER

content, in an manner, is strictl prohibited. No patent liabilit is assumed with respect to the

use of the information contained herein. While ever precaution has been taken in the

preparation of this manual, we assume no responsibilit for errors or omissions. Neither is an

liabilit assumed for damages resulting from the use of the information contained herein. All

information has been checked for accurac and ease of application. Since success and safet

in appl ing the equipment depend upon individual accurac , skill and caution, we are not able

to guarantee the results of an procedure contained herein. Nor can we assume responsibilit

for damage to propert or injur to persons engaging from the procedures. Persons engaging

from the procedures do so entirel at their own risk.

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Sterling Scale DW800 User manual

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