OHAUS BW Series Manuel utilisateur

BW Series Compact Bench Scale

Báscula compacta de mesa de la Serie BW

Balance de table compacte, série BW

BW SERIES COMPACT BENCH SCALE EN-1

1. INTRODUCTION ............................................................................... EN-2

1.1 Product Description................................................................. EN-2

1.2 General Features..................................................................... EN-2

1.3 Safety Precautions .................................................................. EN-2

2. INSTALLATION ................................................................................. EN-3

2.1 Unpacking ............................................................................. EN-3

2.2 Installing Components............................................................. EN-3

2.3 Selecting the Location ............................................................. EN-3

2.4 Leveling the Scale................................................................... EN-3

2.5 Connecting Power................................................................... EN-4

2.5.1 AC Power...................................................................... EN-4

2.5.2 Battery Power................................................................EN-4

2.6 Initial Calibration .................................................................... EN-4

3. OVERVIEW OF CONTROLS AND FUNCTIONS........................................ EN-5

4. OPERATIONS................................................................................... EN-6

4.1 Switching the Unit On and Off................................................... EN-6

4.2 Manual Tare........................................................................... EN-6

4.3 Zero Operation........................................................................ EN-6

4.4 Changing Weighing Units ........................................................ EN-6

5. SCALE SETTINGS ............................................................................. EN-7

5.1 Scale Increment...................................................................... EN-7

5.2 Backlight ............................................................................... EN-7

6. CALIBRATION AND SEALING............................................................. EN-8

6.1 Calibration ............................................................................. EN-8

6.2 Legal for Trade Sealing........................................................... EN-10

7. MAINTENANCE ............................................................................... EN-11

7.1 Cleaning............................................................................... EN-11

7.2 Troubleshooting..................................................................... EN-12

8. TECHNICAL DATA............................................................................ EN-13

8.1 Specifications........................................................................ EN-13

8.2 Drawings.............................................................................. EN-14

8.3 Compliance .......................................................................... EN-15

WARRANTY ......................................................................................... EN-16

EN-2 BW SERIES COMPACT BENCH SCALE

1. INTRODUCTION

This manual contains installation, operation and maintenance instructions for the BW

Series Compact Bench Scale. Please read the manual completely before installation

and operation.

1.1 Product Description

The BW Series Compact Bench Scale is an economical portioning, packing and

general weighing scale designed to provide fast and accurate weighing performance

in washdown environments. With an internal sealed rechargeable lead-acid battery,

IP65 housing and high-speed display update, the BW Series Compact Bench Scale

offers portability, durability and productivity in one practical design.

1.2 General Features

• Capacity models: 1.5kg/3lb, 3kg/6lb, 6kg/15lb, 15kg/30lb

• Single and dual display models

• Default and LFT displayed resolution 1:3,000

• High-profile ABS housing, stainless steel pan (pan is dishwasher-safe)

• IP65 dust and water jet protection

• 4-adjustable leveling feet with integrated front-panel leveling indicator

•

Bright red LED weight display: 6-digit, 7-segment, 0.55”/14 mm high characters

• 4-button control panel: On/Units Off, Check, Tare, Zero

• 3-weighing units: g, oz, lb

• Battery charge indication

• AC power or 15-hour rechargeable lead-acid battery

• Over-Under checkweighing function with audible alarm

1.3 Safety Precautions

For safe and dependable operation of this scale, please comply with the

following safety precautions:

• Verify that the input voltage printed on the AC Adapter and the plug type

matches the local AC power supply.

•

Make sure that the power cord does not pose an obstacle or tripping hazard.

• Disconnect the scale from the power supply when cleaning the scale.

• Do not operate the scale in hazardous or unstable environments.

• Do not drop loads on the platform.

• Use only approved accessories and peripherals, as available.

•

Operate the scale only under ambient conditions specified in these instructions.

• Service should be performed by authorized personnel only.

BW SERIES COMPACT BENCH SCALE EN-3

2. INSTALLATION

2.1 Unpacking

Unpack and verify that the following components have been included:

• BW Scale Unit

• Weighing Pan

• AC-DC Adapter

• Instruction Manual

Save the packaging material. This packaging ensures the ideal protection for the

storage or transport of the product.

2.2 Transport Protection

BEFORE USING THE SCALE:

Remove the 3 shipping protection screws on

the spider sub-platform, then remove the 3 plastic

column inserts under the spider. Re-install the

protective components if shipping the scale to

ensure proper transport protection.

2.3 Selecting the Location

Operate the scale on a firm, level surface. Avoid locations with rapid temperature

changes, excessive air currents, vibrations, electromagnetic fields, heat or direct

sunlight.

2.4 Leveling the Scale

Adjust the leveling feet* until the bubble is centered in the circle of the level indicator

(located on the front panel). Ensure that the scale is level each time its location is

changed.

* IMPORTANT: To allow proper air flow and minimize condensation inside

the scale, unscrew the 2 rear leveling feet slightly, then level the scale accordingly

for normal operation. However, when cleaning the scale, all 4 leveling feet must be

screwed in tightly to avoid entry of water inside the scale.

EN-4 BW SERIES COMPACT BENCH SCALE

2.5 Connecting Power

2.5.1 AC Power

Verify that the intended AC power source matches the AC adapter rating. Unplug* the

rubber access cap underneath the scale, connect the adapter to the power receptacle

through the cut-out, then plug the AC adapter into a power outlet.

* NOTE: When cleaning the scale, turn off the unit, remove the AC adapter and plug

the rubber access cap securely to avoid entry of water inside the scale.

2.5.2 Battery Power

The scale will begin charging with the AC adapter connected accordingly, and auto-

matically switches to battery operation if there is a loss of power. Normal operating

time on a full charge is 50 hours on a 15-hour charge cycle.

Low battery charge is indicated by the flashing LED over the indicator.

AC power or a fully charged battery is indicated by the illuminated LED over the

indicator. A blinking indicates the battery is charging.

NOTES:

• DO NOT continuously charge the scale longer than 24 hours.

• To maximize battery power, the scale can be set up to enter Sleep mode

(only decimal points are displayed) after 2 minutes of inactivity, or auto-

matically turn off after 15 minutes of inactivity (Section 5.2).

• Charging the scale must be performed in a dry environment.

• Plug the rubber access cap to the adapter receptacle to ensure the scale

is protected when operated in a wet environment.

• If the scale is not used within 3 months, recharge and discharge the bat-

tery fully 3 times to maximize the battery condition.

• Dispose of the lead-acid battery according to local laws and regulations.

CAUTION

BATTERY IS TO BE REPLACED ONLY BY AN AUTHORIZED OHAUS

SERVICE DEALER. RISK OF EXPLOSION CAN OCCUR IF REPLACED

WITH THE WRONG TYPE OR CONNECTED IMPROPERLY.

2.6 Initial Calibration

When the scale is operated for the first time, a Span Calibration is recommended to

ensure accurate weighing results. Before performing the calibration, be sure to have

the appropriate calibration weights. Refer to Section 6 for calibration procedures.

BW SERIES COMPACT BENCH SCALE EN-5

3. OVERVIEW OF CONTROLS AND FUNCTIONS

• Turns the scale on

• Long-press turns the scale off

• Short-presses display successive units of measure

• In SETUP Mode, “Yes” accepts/confirms the displayed setting

• In CHECK Mode, accepts/confirms the displayed value

•

Inputs the weight of the object on the weighing pan as a Tare value

• In SETUP Mode, “No” toggles through the available settings

• In CHECK Mode, increments the value of the selected digit

• Zeros the display

•

With the scale off, long-press together with ON/UNITS

OFF

enters User Setup Mode

• In SETUP Mode, “Exit” ends setup and exits to “Save”

• In CHECK Mode, ends Over/Under setup and exits to weighing mode

• Initiates CHECK Over/Under setup

• In SETUP Mode, “Back” reverts to the previous parameter

• In CHECK Mode, shifts to the next digit

• LED annunciator indicates Center of Zero

• LED annunciator indicates battery is fully charged (blinking if charging)

UNDER •

LED annunciator indicates displayed weight is less than the preset Under value

OVER •

LED annunciator indicates displayed weight is more than the preset Over value

• LED annunciator blinks to indicate the battery voltage is low

NET • LED annunciator indicates Net (Gross minus Tare) value

g, oz, lb • LED annunciator indicates the active weighing unit

UNDER OVER NET

CHECK

ZERO

TARE

Yes

Exit

Back

CAPACITY: 3 lb x 0.001 lb

ON/UNITS

OFF

EN-6 BW SERIES COMPACT BENCH SCALE

4. OPERATIONS

4.1 Turning the Unit On and Off

With the scale off, press ON/UNITS

OFF

to turn on. Make sure the weighing pan is

empty before turning the scale on. Allow 15-30 minutes for the scale to warm up

before use. With the scale on, long-press ON/UNITS

OFF

to turn off.

4.2 Manual Tare

Place a container on the weighing pan, then press TARE. The display will show

a net value of “0” as the Tare weight is registered. Remove the container, and the

resulting negative value displayed will be equivalent to the Tare weight. To clear the

Tare value, press TARE with the pan empty.

4.3 Zero Operation

Press ZERO to zero the stable weight display (the weight must be within ±2% of

scale capacity). Center of Zero is indicated by the LED annunciator.

4.4 Checkweigh Target Setting

Compares the weight of an item against a pre-set Over-Under range.

To activate Checkweighing Mode, refer to user setup (Section 5.2).

• Press CHECK to initiate entering Over-Under parameters.

• The value of the “OVER” target limit will be displayed first, with the active digit

flashing (the “OVER” LED annunciator is lit).

• Enter the desired “OVER” limit value by pressing -No to increment the active digit or

-Back to shift to the next digit.

• Press -Yes to accept the displayed value and proceed to the “UNDER” target limit

(the “UNDER” LED annunciator is lit).

• Enter the desired “UNDER” limit value by pressing -No to increment the active digit

or -Back to shift to the next digit.

• Press -Exit to accept the displayed value and exit into checkweighing mode.

NOTES:

• “OVER” or “UNDER” LED annunciators will light if the weight of an item

placed on the pan is over or under the pre-set limits, respectively. “OVER”

and “UNDER” LED annunciators will light simultaneously if the weight is

within the pre-set limits.

BW SERIES COMPACT BENCH SCALE EN-7

• The LED indication is complemented by an audible alert feature (Sec. 5.2).

• Over-Under values are retained when the unit is turned off.

• Over-Under values are not retained when the weighing unit or resolution

setup are changed.

5. SCALE SETTINGS

5.1 Accessing the User Setup Mode

With the scale on, press ON/UNITS

OFF

and CHECK simultaneously. “SETUP” then

“S1 OFF” is displayed. To navigate in the User Setup Mode:

• Press ON/UNITS

OFF

-Yes to accept the displayed setting

• Press TARE-No to toggle through available settings

• Press ZERO-Exit to end setup and proceed to “Save”

• Press CHECK-Back to revert to the previous parameter

5.2 User Setup Parameters

Parameters Description Settings

S1 Scale automatically turns off after 15

minutes of inactivity.

ON - enables this function.

OFF -disables this function.

S2 Scale enters sleep mode after 2

minutes of inactivity.

ON - enables this function.

OFF -disables this function.

S3 CHECK activation and Alert Range 0- Check mode is off.

Scale beeps when displayed weight is:

1-...within the preset Over and Under values

2-...outside the preset Over and Under range

3-...within the preset Over and Under values (Over-Under LED’s do not

light within preset range)

4-...outside the preset Over and Under range (Over-Under LED’s do not

light within preset range)

5- Alarm is off (Over-Under LED’s do not light within preset range)

6- Alarm is off

S4 Averaging Level 0, 1, 2, 3 (most filtering, longer stabilization time)

4, 5, 6, 7 (corresponds to 0, 1, 2, 3 but with slower display update)

S5 Power-on Weighing Unit lb, oz, g

S6 LED Brightness Level 0,1,2,3 (dimmest).

dsp Display Type OFF - displays weight continuously.

ON - displays first stable weight.

Save Save or Abort Save - saves changes and reverts to weighing mode.

Abort - reverts to weighing mode without saving changes.

Note: Bold settings are defaults.

EN-8 BW SERIES COMPACT BENCH SCALE

6. CALIBRATION AND SEALING

6.1 Calibration

For best results, calibrate the scale at regular intervals. Temperature changes,

geographic gravity variations, altitude changes and abuse are few reasons why a

scale may need recalibration.

Note: The following procedure requires the use of hand tools and calibration

weights. If unable to perform the calibration, contact an authorized Ohaus service

organization.

1. Remove the battery cover to access the two calibration pins located in

a slot at the bottom of the scale. With the scale on under battery power,

short the calibration pins (a small slotted screwdriver may be used).

Note: When accessing the bottom of the scale, avoid placing the scale

upside down on the pan or sub-platform. Place the scale on its side.

2. “SEtUP” then the first parameter “CtY” is displayed.

3. Press -Yes successively to move through the succeeding parameters:

“dEF NO” “S1”, “S2”, “S3”, “S4”, “S5”, “S6”, “dSP”, “S8”, “S9”, “S10”,

“S11”, “S12”, “bAt”, “GEO”.

Note: Do not change the settings of these parameters. These are service

setup parameters intended for authorized servicing use only.

4. After “GEO”, “CAL NO” is displayed. Press -No to switch the setting to

“CAL YES”.

5. “CAL YES” is displayed. Press -Yes to enter calibration sequence.

Calibration Pins

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