DigiWeigh DW98PDH04 Manuel utilisateur

DigiWeigh

DW-97/98 Series

Digital Counting Scales

INTRODUCTION.....................................................................................................5

SPECIFICATIONS...................................................................................................6

DW-97/98 SERIES................................................................................................6

Common Specifications.........................................................................................6

SETUP......................................................................................................................8

GENERAL INSTALLATION...............................................................................8

INSTALLATION OF DW-97/98 SERIES.............................................................8

KEYBOARD FUNCTIONS.................................................................................9

DISPLAYS .............................................................................................................10

WEIGHT DISPLAY ...........................................................................................10

UNIT WEIGHT DISPLAY .................................................................................10

COUNT /PCS DISPLAY.....................................................................................10

OPERATION..........................................................................................................11

ZEROING THE DISPLAY .................................................................................11

TARING .............................................................................................................11

Normal Tare:...................................................................................................11

Pretare:............................................................................................................12

PARTS COUNTING...........................................................................................12

SETTING UNIT WEIGHT..............................................................................12

WEIGHING A SAMPLE TO DETERMINE THE UNIT WEIGHT.................12

ENTERING A KNOWN UNIT WEIGHT.......................................................13

STORING A UNIT WEIGHT.........................................................................13

RECALLING A STORED UNIT WEIGHT ....................................................13

COUNTING MORE PARTS...........................................................................15

AUTOMATIC PART WEIGHT UPDATES....................................................15

PRESET CHECK-WEIGHING.......................................................................15

PRESET COUNTING ALARM......................................................................16

ACCUMULATED TOTAL(Count or Weight).................................................16

BATTERY OPERATION................................................................................16

RS-232 OUTPUT..................................................Error! Bookmark not defined.

OPTION SETTINGS...........................................................................................18

OPTION SETTINGS...........................................................................................20

SCALE CALIBRATION.....................................................................................20

DIGIWEIGHPRO WARRANTY INFORMATION ............................................21

INTRODUCTION

The DigiWeigh DW-97/98 series of scales provides an accurate, fast and

versatile series of counting and check-weighing scales. The scales are

changeable from pounds to Kilograms.

There are 3 models, with capacities up to 60lb/30 kg. They all have stainless

steel weighing platforms on an ABS base assembly. All the keypads are

sealed, membrane switches and the displays are large easy to read liquid

crystal type displays (LCD). The LCD’s are supplied with a backlight.

Features include automatic zero tracking, audible alarm for pre-set weights,

automatic tare, pre-set tare and an accumulation facility that allows the count

to be stored and recalled as an accumulated total. There are 10 memories

for storing and recalling Unit Weights.

SPECIFICATIONS

DW-97/98 SERIES

Model # DW98PDH04 DW97PBM04 DW97PAM04 DW98PAH04

Maximum Capacity 6lb/3000g 30lb/15Kg 60 lb/30Kg 60 lb/30Kg

Readability 0.0001lb /

0.05g 0.001lb / 0.5g 0.002lb / 1g 0.001lb / 0.5g

External Resolution 1:60,000 1:30,000 1:30,000 1:60,000

Internal Resolution 1:600,000 1:600,000 1:600,000 1:600,000

Tare Range KG Mode 1 KG 7 KG 30 KG 10 KG

Tare Range LB Mode 6 LB 30LB 60 LB 60 LB

Minimum Capacity 1g 5g 10g 10g

Repeatability (Std Dev) 0.0002lb / .1g 0.002lb /1g 0.004lb / 2g 0.002lb / 1g

Linearity ± 0.0008lb/ 0.4g 0.004lb / 2g 0.008lb / 4g 0.008lb / 4g

Units of Measure lb/kg lb/kg lb/kg lb/kg

Recommended Calibration

Weight 2KG or 3KG

or 5LBS 10KG or

25LBs 20KG or

50LBS 20KG or

50LBS

Unit Weight Memories 10 10 10 10

Common Specifications

Interface RS-232 Output (optional)

Stabilization Time 2 Seconds typical

Calibration Automatic External

Display 3 x 6 digits LCD digital display, 20mm digits

Operating Temperature 0°C - 40°C 32°F - 104°F

Power supply 12Vdc, 800ma from external adapter or

Internal Rechargeable Battery

Balance Housing ABS Plastic, Stainless Steel platform

Pan Size 225 x 295mm 8.9 x 11.6”

Overall Dimensions (W x D x

H), 310 x 330 x 114mm (12.2”x 13”x 4.5”)

Gross Weight 4.1kg/9.1lb

Applications General Purpose Parts Counting Scale

Functions Pound / Kilogram weight parts counting

accumulating memory preset count with

alarm

Internal Rechargeable Battery FM650E 6V / 5Ah Sealed Lead Acid Battery

Other Features Accuracy enhancement for parts counting

SETUP

GENERAL INSTALLATION

The scales should be sited in a location that will not degrade the

accuracy.

Avoid extremes of temperature. Do not place in direct sunlight or near

air conditioning vents.

Avoid unsuitable tables. The tables or floor must be rigid and not

vibrate. Do not place near vibrating machinery.

Avoid unstable power sources. Do not place near large users of

electricity such as welding equipment or large motors.

Avoid high humidity that might cause condensation. Avoid direct

contact with water. Do not spray or immerse the scales in water.

Avoid air movement such as from fans or opening doors. Do not place

near open windows.

Keep the scales clean.

Do not stack material on the scales when they are not in use.

INSTALLATION OF DW-97/98 SERIES

REMOVE the Shipping Protection Screw from the bottom of the

scale before using!

Level the scale by adjusting the four feet. Center the bubble in the

spirit level located on the top surface of the scale. If the scale rocks

readjust the feet.

The DW-97/98 Series comes with a stainless steel platform packed

separately. Place the platform in the locating holes on the top cover.

Do not press with excessive force as this could damage the load cell

inside.

Attach the power supply cable to the connector on the bottom of the

scale. Be certain that it is firmly seated and that the shoulder of the

plug fits into the hole in the scale case. Plug in the power supply

module. The power switch is located on the bottom near the front of

the scale.

The red battery charge light will come on whenever the scale is

attached to power.

KEYBOARD FUNCTIONS

0-9 Numeric entry keys, used to manually enter a value for

tare weights, unit weight, and sample size.

Decimal Used with numeric entry keys to place the decimal point.

CLEAR Used to clear the displayed numeric readings.

U.Wt Used to enter the known unit weight.

Ptare Used manually enter the container or tare weight.

Smpl Used to input the sample size.

ADD Add the current weight/count to the accumulator. Up to

99 values or full capacity of the weight display can be

added.

Zero Set the weight display to “0”when a minor value is

displayed on the scale (ex. from drifting).

Tare Used to subtract the weight of a container. Indicates that

the current reading is the net weight.

Total Recalls the total accumulated weight and count from the

memory.

ALARM To set the upper and lower limit for the number of items

counted. When the number of items on the scale is within

this range, the scale will sound the beeper.

DISPLAYS

The scales have three digital displays. The displays show WEIGHT, UNIT

WEIGHT and COUNT.

WEIGHT DISPLAY

A 6 digit display which displays the weight on the scale.

Arrowheads adjacent to the symbols will indicate the following:

Zero Indicator, "Zero"

Net Weight Indicator

UNIT WEIGHT DISPLAY

This display will show the unit weight of a sample. This value is either input by

the user or computed by the scale. The unit of measure is grams on all scales

with Kilogram weight units or in pounds on scales that show pounds.

There is an insufficient number of samples to accurately

determine the count:

Indicates that a unit weight must be entered either

manually, or via the sample process.

COUNT /PCS DISPLAY

The display will show the number of items on the scale or the value of the

accumulated count. See OPERATION section.

Scale is in Accumulate Mode

Low battery Symbol

Display Reading is Stable

OPERATION

ZEROING THE DISPLAY

You can press the ZERO key at any time to set the zero point from which all

other weighing and counting is measured, It is active within 4% of power up

zero. This will usually only be necessary when the platform is empty. When

the zero point is obtained the Weight display will show the indicator for zero.

The scale has an automatic re-zeroing function to account for minor drifting or

accumulation of material on the platform. However you may need to press

ZERO to re-zero the scale if small amounts of weight are shown when the

platform is empty.

TARING

There are two methods to enter a tare value. The first uses the weight on the

platform and the second uses a value input by the user.

Normal Tare:

Zero the scale by pressing the ZERO key if necessary. The zero

indicator will be on.

Place a container on the platform, a value for its weight will be

displayed.

Press the TARE key to tare the scale. The weight that was displayed is

stored as the tare value and that value is subtracted from the display,

leaving zero on the display.

The "Net" indicator will be on. As product is added only the weight of

the product will be shown. The scale could be tared a second time if

another type of product was to be added to the first one. Again only the

weight that is added after taring will be displayed.

When the container is removed, a negative value will be shown. If the

scale was tared just before removing the container this value is the

gross weight of the container plus all product that was removed. The

zero indicator will also be on because the platform is back to the same

condition it was when the ZERO key was last pressed.

Press the TARE key again to remove the tare weight .

Pretare:

This method allows you to enter a value for the tare weight from the

keypad. This is useful if all containers weigh the same, or if the

container is already full but the net weigh is required and the tare

weight of the container is known.

Remove all weight from the platform, and press the ZERO key to zero

the display.

Press the P.Tare key and the unit weight display will flash PrEtA

Enter the value for the Tare weight including decimal values (50.00)

using the keypad, press P.Tare to store the tare value. The weight will

show a negative value equal to the tare.

Place the container on the platform. The display will then show the

weight of the container minus the tare weight. Then when the full

container is put on the platform the tare value will be subtracted from

the gross weight displaying only the net weight of the contents.

PARTS COUNTING

SETTING UNIT WEIGHT

In order to do parts counting it is necessary to know the average piece weight

of the items to be counted. This can be done by weighing a known number of

the items and letting the scale determine the average unit weight or by

manually entering a known weight using the keypad.

WEIGHING A SAMPLE TO DETERMINE THE UNIT WEIGHT

To determine the average weight of the items to be counted it will be

necessary to place a known quantity of the items on the scale and then

to key in the number of items being weighed. The scale will then divide

the total weight by the number of items and display the average unit

weight.

Zero the scale by pressing the ZERO key if necessary. If a container is

to be used, place the container on the scale and tare as discussed

earlier.

Place a known quantity of items on the scale. After the weight display

is stable enter the quantity of items using the numeric keys followed by

SMPL key. The number of units will be displayed on the "Count"

display and the computed average weight will be shown on the "Unit

Weight" display.

As more items are added to the scale, the weight and the quantity will

increase.

If the scale is not stable, the calculation will not be completed. If the

weight is below zero, the “Count”display will show all dashes.

The SMPL key may be pressed during the counting to update the unit

weight.

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