Avery Weigh-Tronix QC-3265 User manual

QC-3265 Checkweigher

User’s Manual

2QC-3265 Checkweigher User’s Manual

10/05/01 3265_U.P65 PN 29600-0011J e1 Printed in USA

Risk of electrical shock. Do not remove cover. No user service-

able parts inside. Refer servicing to qualified service personnel.

Weigh-Tronix reserves the right to change

specifications at any time.

CAUTION

QC-3265 Checkweigher User’s Manual

Table of Contents

Table of Contents..........................................................................................3

Specifications ................................................................................................4

Introduction ...................................................................................................7

Front Panel....................................................................................................7

Keys ...................................................................................................8

Annunciators ......................................................................................8

Installation and Operation .............................................................................9

Installation ..........................................................................................9

Explanation of Modes of Operation ....................................................9

Operation as a Scale..........................................................................9

Gross Weight Checkweighing ..........................................................10

Net Weight Checkweighing ..............................................................10

Changing the Acceptance Tolerance ...............................................11

User Menu...................................................................................................11

Communication ...........................................................................................13

Error Displays..............................................................................................13

Plastic Knob Installation for USDA Approved Applications .........................14

Pages are numbered consecutively beginning with the cover page.

4QC-3265 Checkweigher User’s Manual

Specifications

7 segment LCD, 6 digits, 0.7 inch high with 5 decimal points

7 segment LED, 6 digits, 0.6 inch high with 5 decimal points

8 LEDs for the following functions:

OVER- yellow ACCEPT - green UNDER - red

lb - red kg - red oz - red g - red

Center of Zero - green

60 Hz. Delta-Sigma type converter

4,718,592 counts per mV/V per second

Voltage : 6 volts DC (LCD), 10 volts DC (LED)

AvailableCurrent: 69 mA (four 350 ohm load cells) LCD

114 mA (four 350 ohm load cells) LED

*115 VAC +10% to -15% @ 0.10 Amp maximum

230 VAC +10% to -15% @ 0.05 Amp maximum

12 VDC (10 to 15 volts) @ 80 mA with 1 load cell

@ 131 mA with 4 load cells

Available for LCD version only. 30 Hour battery life. 14 hour recharge time. Low

battery warning. Low power shutoff.

Charging can occur during AC operation.

Handbook 44 for 6,000 divisions (-10 to 40°C)

-10 to 40°C -30 to 60°C

Zero: ±.085 µV/°C ±0.17 µV/°C

Span: ±5.0 ppm/°C ±10 ppm/°C

(For scale base, 3000 divisions)

±0.005% of capacity, maximum (For base, ±0.01%)

0.005% of capacity, maximum (For base, 0.01%)

All calibration and programming is done through the front panel with data

stored in nonvolatile memory.

1, 2, 5, or 10*times per second

1*, 2, 5, or 10 display intervals

±1%, ±2%, ±5%, ±10%, ±20%, ±50%, ±100%*of Capacity

d = 1 displayed division

±0.25 d, ±0.5 d, ±0.6 d, ±1 d*, ±2 d, ±3 d, ±5 d

d = 1 displayed division

Window: ±0.25 d, ±0.5 d, ±0.6 d*, ±1 d, ±2 d, ±3, ±5 d,

Rate: 0.1 division per second

StartingDelay: 2 seconds

The scale displays weights up to capacity plus 9 divisions, referenced from

the zero value determined by zero setting point, or 105% of capacity,

referenced from the deadload.

Display

Light Emitting Diodes

A/D Conversion Rate

Internal Resolution

Excitation for Load Cells

Power Requirements

Battery Information

Accuracy

Linearity

Repeatability

Hystersis

Calibration and Programming

Display Rates

Filtering

Push Button Zero Range

Motion Detection Window

Automatic Zero Tracking

Over Range Capacity

LCD only

* = default

QC-3265 Checkweigher User’s Manual

Under Range Capacity

Temperature Range

Humidity

Scale Capacity and Division

Options

The scale displays weights in the negative direction using the same restric-

tions as for over-range, but further limited by the number of display digits

available.

-10 to 40°C (14 to 104°F)

-30 to 60°C (-22 to 140°F) with reduced accuracy

Up to 100% relative humidity.

Pounds Ounces Kilograms Grams

6 x .002 100 x .05 3 x .001 3000 x 1

6 x .001 100 x .02 3 x .0005 3000 x .5

*12 x .005 200 x 0.1 6 x .002 6000 x 2

12 x .002 200 x 0.05 6 x .001 6000 x 1

30 x .01 480 x 0.2 15 x .005 15000 x 5

30 x .005 480 x 0.1 15 x .002 15000 x 2

60 x .02 960 x 0.5 30 x .01 30000 x 10

60 x .01 960 x 0.2 30 x .005 30000 x 5

100 x .05 1600 x 0.5 45 x .02 45000 x 20

100 x .02 1600 x 0.2 45 x .01 45000 x 10

200 x .1 3200 x 1 90 x .05 90000 x 50

200 x .05 3200 x .5 90 x .02 90000 x 20

* = default

• LCD & LED versions

• 230 VAC 50/60 Hz power

• Tower mounted toggle switch for setting target weight and zeroing

• Battery and charger (available with LCD version only)

• RS-232 or RS-485 interface board

• Short and extended towers

• Remote head

• NTEP load cells

6QC-3265 Checkweigher User’s Manual

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QC-3265 Checkweigher User’s Manual

Introduction

The Quick Check QC-3265 Checkweigher is a low-cost, high-speed produc-

tion checkweigher housed in stainless steel for harsh, washdown environ-

ments. This manual is divided into the following sections:

• Introduction

• Front Panel

• Operation

• User Menu

If you have any problems with your QC-3265 Checkweigher, call your local

Weigh-Tronix distributor.

Figure 1 shows the front panel. The panel consists of the following:

• a six-digit, liquid crystal or LED display

• five keys;

QUICK CHECK

TARGET

UNITS

ZERO

(Right arrow key)

• a center of zero annunciator

• four unit of measure annunciators; lb, kg, oz, g

• three checkweigher annunciators; OVER, ACCEPT, UNDER

Figure 1

QC-3265 Front Panel

Front Panel

This manual covers software

48307-0025B and newer on

the LED model of the QC-

3265 and 48307-0017C and

newer on the LCD model.

These revisions contain the

LB-OZ capability which

previous versions did not

have.

8QC-3265 Checkweigher User’s Manual

Keys Following are the keys and their functions.

Press this key to toggle between checkweigh mode and

weight display mode, assuming you have an active target

weight. Use the QUICK CHECK key to return to the

weight display and checkweigh modes from anywhere in

the menus. Press this key to accept a displayed selection

and return to a display mode.

Use the up arrow-TARGET key to set the target weight.

With no weight on the scale, press this key to remove a

target weight and enter the weight display mode. With a

weight on the scale, press this key set the target weight

and to enter the Checkweigh mode from the weight

display mode. Also, press this key to move up in the

menus. You can also set the target weight by flipping the

optional, column mounted toggle switch up.

Use the left arrow-UNITS key to change the unit of

measure in weight display mode and checkweigh mode.

This key works only if more than one unit of measure is

enabled. Use this key to move to the left in the menus.

Use the ZERO-down arrow key to zero the scale while in

either display mode. In the A/D test mode this key sets the

offset to zero. Use this key to move down in the menu

hierarchy. With a selection displayed, press this key to

select that item and go up one menu level. You can also

zero the scale by flipping the optional, column mounted

toggle switch down.

Use the right arrow key to move to the right in the menus.

The OVER, ACCEPT, and UNDER annunciators are to the right of the

display and are shown below. The OVER light is yellow, the ACCEPT light is

green and the UNDER light is red.

Annunciators

Key names are abbreviated in

many of the instructions of this

manual. Instead of saying the

up arrow-TARGET key every

time it is shortened to this

symbol ^.

^ = up arrow key

v = down arrow key

< = left arrow key

> = right arrow key

If for some reason the QC-

3265 cannot perform a key

function (due to motion, range

limits, and others) the display

will show CAN'T while the key

is held down.

Target weight and the toler-

ances are saved in nonvolatile

memory. They are not lost

when the unit is powered

down.

QC-3265 Checkweigher User’s Manual

The unit of measure annunciators are below the display and are reproduced

below. The lit annunciator tells you the currently selected unit of measure-

ment.

The center of zero annunciator, reproduced below, is next to the ZERO key.

When the annunciator is lit the scale is within ¼ division of zero.

Place the QC-3265 on a stable, level surface.

Use the leveling feet to level the scale. A bubble level is visible under the

scale platform shroud. Lock the feet in this position using the locknuts on the

feet.

Plug the unit into a properly grounded 115VAC outlet.

The socket-outlet must be installed near

the equipment and easily accessible.

There are two modes of operation for the QC-3265, the weight display mode

and the checkweigh mode.

• Use the weight display mode when you want to use the scale for

displaying weight. The scale powers up in weight display mode if there

is no target weight in memory.

• Use the checkweigh mode for checkweighing operations and the use

of the OVER, ACCEPT, and UNDER LEDs. If there is a target weight

in memory, the scale will power up in the checkweigh mode. Below are

explanations of the operation in each mode.

With the scale in weight display mode, follow these steps to perform a

weighment:

1. Press the ZERO key to zero the

scale. . . Display shows 0 weight.

2. Place the object to be weighed on

the scale. . . The weight is displayed.

Installation and Operation

Installation

There is no ON/OFF switch.

When the unit is plugged in it

will power up. If the battery

option is installed and enabled,

press any key to start.

Explanation of Modes

of Operation

Operation as a Scale

Press the UNITS key to view a

weight in a different unit of

measure.

The lb and oz annunciators will

be lit when you are in the LB-

OZ unit of measure. Two

numbers are displayed sepa-

rated by a space in LB-OZ.

The left number is the number

of pounds and the right is the

ounces to the correct division

size.

10 QC-3265 Checkweigher User’s Manual

To use the QC-3265 as a checkweigher for gross weight, follow the direc-

tions given below:

1. Zero the scale by pressing the

ZERO key or flip the optional

toggle switch down. . . Display shows 0 weight.

2. Place a test weight on the scale

equal to the gross weight of the

package. . . The gross weight is displayed.

3. Press the TARGET key or flip

the optional toggle switch up. . . The display shows 0 weight and the

ACCEPT LED illuminates.

4. Remove the test weight and

place a package on the scale. . . The display will show the weight

deviation from the target weight and

the OVER, ACCEPT, or UNDER

LED will illuminate accordingly.

IMPORTANT NOTE: If you use the ZERO key to tare a container weight

and use the checkweigher in net weighing mode, the unit will track zero

whenever there is an empty container on the scale. If the scale is left idle

while empty, zero drift may occur.

1. Press the >key. . . OVER is displayed.

2. Press the vkey. .. o 0.5 is an example of what might

be displayed. o stands for over

tolerance and the value is the

current over tolerance. The actual

value depends on the unit of mea-

sure and division size. The over LED

is lit.

3. Press the < key to decrease the

value and the > key to increase

the tolerance value. Press the v

key to accept the displayed value. OVER is displayed.

4. Press the >key. . . UNDER is displayed.

5. Press the vkey. . . u 0.5 is an example of what might

be displayed. u stands for under

tolerance and the value is the

current under tolerance. The under

LED is lit.

6. Repeat step 3 and press the

QUICK CHECK key to return to

the checkweigh or display mode.

Gross Weight

Checkweighing

Changing the

Acceptance Tolerance

Over and Under tolerance can

be set from the User menu or

the Setup menu (see Service

Manual) but not both. The

choice where the tolerances

appear is made in the Setup

menu. The tolerances will not

appear in the User menu if they

appear in the Setup menu and

vice versa.

If you change the tolerance but

decide you would rather keep

the original value, press the ^

key in step 2 to return to OVER

without accepting the displayed

value.

Target weight and the toler-

ances are saved in nonvolatile

memory. They are not lost

when the unit is powered

down.

In gross mode, the indicator

will always represent negative

weight with a leading minus

sign. If the weight becomes too

large, positive or negative,

overscores or underscores will

be displayed while the condi-

tion persists.

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