Mettler Toledo bTwin Operator's Manual

Operator Manual

bTwin

Retail scale

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Contents

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Contents

1 Your new retail scale ................................................................5

1.1 Most important functions .............................................................5

1.2 Device overview .........................................................................5

1.3 Safety instructions ......................................................................9

1.4 Calibration instructions .............................................................10

2 Setup and device settings ......................................................11

2.1 Contents ..................................................................................11

2.2 Requirements for scale's location ...............................................11

2.3 Setting up the scale ..................................................................11

2.4 Inserting paper ......................................................................... 13

2.5 Inserting the battery ..................................................................15

2.6 Connecting to mains power ....................................................... 16

2.7 Turning on/off .......................................................................... 16

2.8 Turning on background lighting/saving energy .............................16

2.9 Cleaning .................................................................................17

2.10 Disposal .................................................................................17

3 Fast and easy operation .........................................................18

3.1 Free input ................................................................................18

3.2 Working with PLUs ................................................................... 19

3.3 Entering large quantities ............................................................21

3.4 Weighing with 100 g price unit ..................................................22

3.5 Using quantity PLU and multiplication ........................................22

3.6 Using tare ................................................................................23

3.7 Zeroing ...................................................................................23

3.8 The scale as a calculator ..........................................................24

3.9 The scale as a clock .................................................................24

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Contents

4 Active selling .........................................................................25

4.1 Voiding ...................................................................................25

4.2 Granting a discount .................................................................. 26

4.3 Granting a rebate on the total sum .............................................27

4.4 Refunding (ST) ........................................................................28

4.5 Suspending a transaction (ticket parking) ...................................29

4.6 Working with several vendors ....................................................30

4.7 Customer change function .........................................................31

4.8 Various payment methods .........................................................32

4.9 Basket function ........................................................................ 35

4.10 Working with 2 PLUs per preset key ...........................................37

5 Setup .....................................................................................39

5.1 Overview .................................................................................39

5.2 List of all setup points ...............................................................40

5.3 Setup operation ........................................................................42

5.4 Setup group 1 .......................................................................... 45

5.5 Setup group 2 .......................................................................... 57

5.6 Setup group 3 .......................................................................... 59

5.7 Setup group 4 .......................................................................... 60

5.8 Setup group 5 .......................................................................... 65

5.9 Setup group 6 .......................................................................... 66

5.10 Setup group 7 .......................................................................... 71

5.11 Setup group 8 .......................................................................... 75

5.12 Setup group 10 ........................................................................ 77

6 What do you do if....? .............................................................. 81

7 Technical data and accessories ................................................83

7.1 Technical data ......................................................................... 83

7.2 Accessories ............................................................................. 83

8 Appendix ................................................................................84

8.1 Unicode Table ..........................................................................84

8.2 Label formats ...........................................................................86

8.3 Declaration of conformity ..........................................................87

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1 Your new retail scale

1.1 Most important functions

Congratulations on your new scale.
This robust scale with its battery operation, connectable cash drawer
and integrated ticket printer facilitates comfortable, mobile selling while
maintaining the highest accuracy.
Your new scale not only stands out due to its mobility, but also due to its
network-capability and fast data transfer to and from a computer. This
lets you, for example, operate integrated scales which are connected
to quickly and easily create sales reports.

1.2 Device overview

1.2.1 Display

This display is laid out as follows from the customer and vendor point
of view:

Weight display1
Unit price 2
Price3
Level indicator4
Field for instructions or status messages5
Calibration plate6

In addition to the weight and price, the following status messages and
indicators can be displayed:

–>0<– Gross weight is 0
P P Prepack mode
ST Refund mode
X Quantity mode
100G Price per 100 g
NET Net weight
LS Large sale mode
PLU PLU number is displayed
FIX Unit price and/or tare are not hidden when the item is

removed from the weighing pan or when several items
are accumulated

kg

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Connected to mains power supply

Network operation: the scale functions as a master and

is connected to at least one slave

Network operation: the scale functions as a slave and

is connected to the master

Illuminated: the scale is in battery-powered operation

Flashing: battery too low
charge or replace battery

Flashing and power supply operation symbol illuminated:

battery is charging

1.2.2 Keyboard

The keyboard is divided into three sections:

Function keys1
Number keys2
Key panel for entering text / direct keys / vendor keys (V2-V8) 3

In addition to their main function, most of the function keys have one
or more auxiliary functions which are shown on the upper right and
lower left of the key.

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Key Name Function

Void

Void key Cancel the item

Disc

Discount key Enter the discount in percent



Minus key Absolute decrease

C

Delete key Delete the entry

PLU

PLU key Call up a PLU

X

Quantity key Enter quantity

T

Tare key Tare the scale

Asterisk key Complete the transaction, print ticket

V1

Vendor key Book items to Vendor V1.

The vendor keys, V2 to V8, are located
to the left of the number panel.

Mode

Mode key Enter/leave the setup mode, call up the

auxiliary function

Function keys

Main function

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Used in combination with the mode key, the function keys have the
following secondary functions:

Key Function

Mode

+

Disc

Display/hide date/time *

Mode

+

LS

Activate large sale mode **

Mode

+

0

C

Zero the scale *

Mode

+

PLU

ST

Turn refund mode on/off *

Mode

+

100g

X

Toggle between price/100 g and price/kg **

Mode

+

T

Park ticket

Mode

+ Open cash drawer

Mode

+

V1

Turn calculator on/off *

* Activate/deactivate using key combinations:

while holding the mode key, press the function key.

** To activate, either a price must first be entered or a PLU must be

called up. After the transaction is completed, the scale returns
to the normal operating mode.

1.2.3 Connections

The following connections are located on the underside of the scale:

RS-232/COM1 for a scanner or computer1
RS-232/COM2 for a scanner or computer2
Cash drawer connection3
Ethernet connection to set up a network of scales4

Function keys

Auxiliary function

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1.2.4 Options/Accessories

The following options/accessories are available to enhance the per­formance of your scale:

Tower to position the customer display at eye level•
Battery for mobile operation•
Cash drawer•
Integrated calculation function•

If you want to add an option/accessory to your scale, please contact
your sales representative.

1.3 Safety instructions

Basic safety instructions

Read these operating instructions prior to using your scale. f
Store these operating instructions in the vicinity of the scale for f
future reference.
Do not open the scale. f
Always unplug the scale before cleaning. f

Safety instructions for battery operation

The battery must not come into contact with chemical solvents, f
oil or water.
Keep batteries away from heat and fire. f
Do not open the battery. f

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1.4 Calibration instructions

Scales that have been factory-calibrated have a label indicating this
on the packaging.
Scales with a green M on the type plate are ready for operation.

Scales that are calibrated in two stages have a label indicating this
on the packaging.
These scales have only been calibrated in a first stage (declaration of
conformity in accordance with EN 45501-8.2). The second stage of
the calibration must be done on-site by authorized service personnel.
Please contact your local representative.

Medium accuracy scales that are used in commerce where certified
calibration is required must be calibrated and certified.
Observe the respective measurement data guidelines in your country.

M

M

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2 Setup and device settings

2.1 Contents

Check that the delivery is complete: f

Scale –
Stainless steel weighing pan –
Power cable –
Ticket roll –
Operating instructions –
Quick guide –

2.2 Requirements for scale's location

The right location is critical to weighing accuracy.

Conditions for an ideal location:

No shocks and vibrations•
No excessive temperature fluctuations•
No direct sunlight•
No strong drafts•

Select a stable, vibration-free and preferably horizontal location for •
your scale.

2.3 Setting up the scale

2.3.1 Levelling the scale

Only a perfectly levelled scale delivers accurate weighing results. The
scale is equipped with a level indicator to make it easier to level the
scale.

To level the scale, turn the scale's adjustable feet until the air bub- f
ble in the level indicator is positioned in the inner circle.

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2.3.2 Removing the transportation lock

3 kg scales are equipped for transport with a locking bolt.

1. Remove the weighing pan.
Unscrew the locking bolt and put the weighing pan back on.2.

2.3.3 Mounting the tower (optional)

The tower is available as an option to mount the customer display at
eye level.

Loosen the 3 screws on the underside of the scale to remove the 1.
cover plate (1).
Remove the screws and nuts from the side screw caps (2).2.
Remove the screws (3) that fasten the customer display to the 3.
display holder.
Remove the display from the display holder and pull the display 4.
cable out of the cable duct.
Lay the cable in the tower.5.
Put the tower on the display holder and fasten it to the scale with 6.
2 screws (4).

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Put the customer display on the tower and fasten it to the tower 7.
with 2 screws (5).
Fasten both side screw caps (2) with screws and nuts.8.

2.4 Insert ing paper

2.4.1 Paper format

Ticket rolls or label rolls must comply with the following measures:

• The paper used (incl. carrier paper) must not be thicker than

0.12 mm.
Do not slam the printer door as this will damage the printer.•

Legend

A at least 12 mm
B max. 68 mm
C 57 mm
D 50 mm
E 2 mm
F 20 - 60 mm
G 2 mm
H 46 mm

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2.4.2 Inserting the ticket roll

1. To open the printer door press back the small lever on the right
side (towards the customer) underneath the scale.

2. Push the ticket roll onto the spindle as shown.
Pull the paper to the outside over the black spool.3.
Close the printer door and tear off the excess paper. 4.

2.4.3 Insert ing t he label roll

1. Open the printer door as described under inserting the ticket roll.
Push the label roll onto the spindle.2.
Remove the first two labels.3.
Pull the carrier paper through the plastic guide behind the paper 4.
cutter as shown.
Close the printer door.5.

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2.5 Insert ing t he battery

The scale can only be battery-operated when this function has been
activated with a license. If this is not yet the case for your scale, contact
your sales representative.

CAUTION

The battery can be damaged if it is incorrectly installed.

Pay attention to the correct battery polarity. The positive pole (+) f
and negative pole (-) cannot be short circuited.
Only use original manufacturer batteries. f

1. Remove the weighing pan.
Remove the battery compartment cover.2.
Place the battery in the compartment so that the terminal ends 3.
face upwards.
Connect the red terminal end to the positive pole (red or +) and 4.
the black terminal end to the negative pole (black or -).
Close the battery compartment.5.
Put the weighing pan back on.6.

• The battery life is affected by charging and discharging conditions.
If correctly used, the battery life can reach approx. 300 charging •
cycles.
A fully charged battery lasts up to 30 hours. The battery capacity •
decreases with age.
The battery's operating time is reduced when the battery has not been •
used over a longer period of time (two months).
It is recommended that the battery be charged at least every •
3 months.
If the battery was not used over a longer period of time, then charge •
the battery at least three times and use it until it is completely dis­charged.
The charging time decreases if the battery is not fully discharged.•
Battery specification: 12 V / 5 Ah.•

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2.6 Connect ing to mains power

1. Connect the supplied power cable to the power connection socket
on the bottom of the scale.
Plug the power plug into a correctly grounded power outlet.2.

2.7 Turning on/off

Turn the scale on using the switch on the bottom of the scale. f

• After it is turned on, the scale runs through a short display test. All
segments and status messages briefly light up.
The GEO value and the software version are displayed.•
The scale is ready when the weight display appears.•

2.8 Turning on background lighting/saving energy

• The scale comes equipped with a backlit display. If the ambient
lighting is not sufficient, background lighting can be turned on so
that the display can be easily read.
During power supply operation, the background lighting stays on •
until you turn it off.
To extend the battery's operating life, the background lighting turns •
off automatically when the scale is not used for more than one
minute.
When a weight is placed on the scale or a key is pressed, the back-•
ground lighting automatically turns on again.

f Press and hold the C key until a signal sounds and the background

lighting turns on.

f Press and hold the C key until a signal sounds and the background

lighting turns off.

Turning on background

lighting

Turning off background

lighting

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2.9 Cleaning

CAUTION
Damages to the scale

Turn off and unplug the device before cleaning. f
Do not open the device. f
Make sure that no fluids get inside the device. f
Do not use scouring powders or plastic dissolving cleaning agents f
for cleaning.

f Remove the weighing pan and clean it with a commercially avail-

able household detergent.
If heavily soiled, clean the surface of the device with a damp cloth f
that has been dipped in water containing a mild washing-up liquid
and then well wrung out.

2.10 Disposal

In accordance with the requirements of European Directive 2002/96
EC on Waste Electrical and Electronic Equipment (WEEE), this device
may not be disposed of with domestic refuse. This also applies for
countries outside the EU in accordance with their respective national
regulations.

Please dispose of this product in accordance with local regula- f
tions for the separate collection of waste electrical and electronic

equipment.
Should you have any questions, please contact the corresponding
authorities or the dealer from whom this device was purchased.
If this device is passed on (for example for further private or commercial/
industrial use), this regulation is also to be passed on.
Many thanks for your contribution to the protection of the environ­ment.

Batteries contain heavy metals and therefore cannot be disposed of in
the normal refuse.

Observe local regulations on the disposal of materials that are f

hazardous to the environment.

Cleaning

Battery disposal

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3 Fast and easy operation

The applications described in this chapter pertain to working with one
vendor.

3.1 Free input

You can immediately use your scale for weighing and selling - without
prior configuration.
With the factory settings, the scale can total several entries and calcu­late the customer change.

1. Place the item on the scale.

Enter the unit price (price/kg) and enter by pressing the V1 vendor 2.
key.

3. For more items, repeat steps 1 and 2.

4. Total the items with the asterisk key.

5. Enter the customer payment.

6. Complete the transaction with the asterisk key.

The scale calculates the change and prints the ticket.

• If you do not want to use the customer change function, omit step 5.
In this case, press the asterisk key twice to total up and print the
ticket.
Enter the price as usual without the decimal point, but with all the •
decimal places.

0 ... 9

V1

...

0 ... 9

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3.2 Working with PLUs

You can save your item data in the scale's PLU memory and simply
call it up later.
With the factory settings, a PLU contains the item name, price type (per
kg or per piece) and unit price.
PLUs are created in the scale setup.

Creating a PLU

1. Use the mode key to go to setup and then press 2.

Enter password: enter the number 6 six times and confirm with 2.
the asterisk key.

3. Activate setup group 01 with the asterisk key.

4. Activate setup point 101 with the asterisk key.

Enter the desired PLU no. and confirm with the asterisk key.5.

6. Enter the item name using the keys in the left key field and confirm
with the asterisk key.

7. Select the price type (weight or quantity) with the tare key.

8. Confirm the price type with the asterisk key.

9. Enter the unit price and confirm with the asterisk key.

10. Confirm PLU SAVE with the asterisk key.

11. To exit the setup mode, press the mode key 3 times.
The scale prints a list of the saved PLUs for your files.

• Enter other PLUs as described in steps 5 to 10.
Setup can be accessed in two different ways with different authori-•
zations. Further information can be found in section 5.11, setup
group 8

Mode

2

6 6 6 6 6 6

GR 01

5 101

0 ... 9

ABC...

weight

T

count

0 ... 9

plu save

Mode Mode Mode

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Calling up PLUs

1. Place item on the scale.

Enter the corresponding PLU NUMBER and press the PLU key.2.
The unit price and item name appear in the display as a check.

3. Confirm the entry with the vendor key.

4. Complete the transaction with the vendor key and the asterisk key
as described in section 3.1.

If you discover that you have entered the wrong PLU number, before
you have confirmed the entry with the vendor key, then you can clear
it with the C- key and then enter the correct PLU.

You can save the most important PLUs to the keys in the left-hand
key field.

Setting up preset keys

1. Press the desired preset key, e.g. A, for approx. 3 seconds until
PLU appears in the bottom left of the display.

Enter the relevant PLU no. and confirm with the asterisk key.2.

Two acoustic signals confirm that the PLU was assigned to the preset
key.

• This key field comes with a card insert for custom key labelling.
If you want to work with more than one vendor, then the vendor keys •
(V2 ... V8) cannot be used as PLU preset keys.
2 PLUs can be assigned to a preset key, refer to section 4.10.•

V1

...

PLU preset keys

A 3 sec U

0 ... 9

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Calling up PLUs with preset keys

1. Place item on the scale.

Press relevant preset key.2.
The unit price and item name appear in the display as a check.

3. Accept the entry with the vendor key.

4. Enter further items and complete the transaction with the asterisk
key as described in section 3.1.

3.3 Entering large quantities

Using the large sale function, you can also enter weights that are larger
than the scale's capacity, e.g. when you want to sell a whole package
with a known weight.

Enter the respective PLU number and press the PLU key.1.
The unit price and the item name appear in the display as a
check.

or

f Enter the unit price.

2. To go to the large sale function, press the LS key while press­ing the mode key.
LS appears at the bottom of the display.

3. Enter the known weight and confirm with the vendor key.
The large sale mode is ended.

4. Enter further items and complete the transaction with the asterisk
key as described in section 3.1.

A

V1

...

0 ... 9

PLU

0 ... 9

Mode

LS

0 ... 9

V1

...

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3.4 Weighing with 100 g price unit

For many products, customers are used to a price per 100 g.

1. Place item on the scale.

Enter the associated PLU number and press the PLU key.2.
The unit price and the item name appear in the display as a
check.

or

f Enter the unit price.

3. To go to the 100 g mode, press the 100 g key while holding the
mode key.
The unit price per 100 g will be displayed.

4. Accept the entry with the vendor key.
The 100 g mode is ended.

5. Enter further items and complete the transaction with the asterisk
key as described in section 3.1.

3.5 Using quantity PLU and multiplication

With the multiplication function, you can enter several items for a PLU.
How to create a PLU for items is described in section 3.1.

1. Enter the PLU number of the item and press the PLU key.
The unit price and the item name appear in the display as a
check.

or

f Enter the unit price.

2. Press the X key to call up the multiplication function.

3. Enter the number of items and confirm with the vendor key.
The multiplication mode is ended.

4. Enter further items and complete the transaction with the asterisk
key as described in section 3.1.

0 ... 9

PLU

0 ... 9

Mode

100g

X

V1

...

0 ... 9

PLU

0 ... 9

X

0 ... 9

V1

...

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3.6 Using tare

You fill containers with your products or customers bring their own
container. The tare function makes sure than only the goods are entered
and paid.

1. Place the empty container on the scale.

2. Press the tare key.
The scale is tared.

The weight display is reset to 0.000 kg and the NET symbol appears.
The tare weight is displayed in the bottom line of the display.

3. Fill the container with the goods to be weighed.

4. Carry out the transaction as described in section 3.1 and complete
it with the vendor key.
The tare value is cleared.

5. Enter further items and complete the transaction with the asterisk
key as described in section 3.1.

Known tare weights can also be entered via the keyboard, refer to
manual tare in setup point 445.

3.7 Zeroing

Due to soiling on the weighing pan or unfavourable external influ­ences, it is possible that the weight display of an unloaded weighing
pan may no longer be 0.000 kg. In such cases, the scale must be
reset to zero.

f While holding the mode key, press the zeroing key.

The weight display is set to zero.

T

...

V1

...

0.010 kg

Mode

+

0

C

0.000 kg

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3.8 The scale as a calculator

The scale not only performs all calculations for you during sales; it also
performs any other calculations.

In the calculator mode, the keys have the shown values.
The mathematical operators are shown on the lower left of the keys.

Calling up the calculator mode

f While holding the mode key, press the calculator key (V1).

CALCULA appears on the display. The calculator mode is active.

Example: 3x5+5.67

Notes

The calculation is finished when the = key is pressed. It is not pos-•
sible to continue with this calculation.
To end the calculation mode, again press and hold the mode key •
and then press the calculation key (V1).

3.9 The scale as a clock

You can display the date and time in the display at any time.

f While holding the mode key, press the clock (DISC) key.

The date and time are displayed.

• When the date and time are displayed on the scale, you cannot
weigh or enter values.
To return to the scale mode, again press and hold the mode key and •
then press the DISC key.

The clock as a screen saver

When the "sleep mode" is activated in setup point 412, the scale always
displays the time when there has been no scale activity for 3 minutes.
As soon as a weight is put on the scale or a key is pressed, the weight
display again appears.

Mode

V1

Input Display
3 x

3

5 5
+ 15

5.67 5.67
= 20,67

Mode

Disc

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4 Active selling

4.1 Voiding

Your customer decides not to buy one or more items that have already
been weighed, but not paid. In this case, you can void the items that
are not wanted.
Before totalling, you can void one or more vendor entries.
The following procedures are described based on the factory settings.

Voiding individual entries

1. Enter, but not total one or more PLUs or direct price items to a
vendor key, also refer to chapter 3 on entering.

2. Press the void key.
Unit price, total price per PLU and PLU number of the item that was
last entered appear in the display.

3. Use the minus key or the discount key to select the entry to be
voided.

4. Confirm the selected entry with the asterisk key.
VOID OK appears in the display.

5. If more entries should be voided, repeat steps 2 to 4.

6. Enter further items and complete the transaction with the asterisk
key as described in section 3.1.
The voided entries are printed on the ticket.

...

Void



or

Disc

...

...

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Voiding all entries

1. Enter, but not total one or more PLUs or direct price items to a
vendor key, also refer to chapter 3 on entering.

2. Press the void key.
Unit price, total price per PLU and PLU number of the item that was
last entered appear in the display.

3. Press the vendor key.
The message VOID ALL appears in the display. All of the vendor's
entries are voided.
A void ticket is created.

Now you can serve the next customer.

4.2 Granting a discount

You want to grant your customer a discount in percent. With the fac­tory settings, you can grant a discount on a single entry or on the total
sum.

Granting a discount on a single entry

1. Weigh the PLU item as described in chapter 3, but do not confirm
it with the vendor key.

2. Press the discount key and enter the discount in percent.

3. Confirm the discount with the vendor key.

4. Enter further items and complete the transaction with the asterisk
key as described in section 3.1.
The discount is printed on the ticket.

...

Void

V1

...

Disc

0 ... 9

V1

...

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Granting a discount on the total sum

1. Enter items and total with the asterisk key as described in chap­ter 3.

2. Press the discount key and enter the percent discount for the total
sum.

3. Confirm the discount with the asterisk key.

4. Complete the transaction as described in section 3.1.
The discount is printed on the ticket.

In setup point 116, you can define automatic discount promotions for
a specific time period for individual PLUs or groups.

4.3 Granting a rebate on the total sum

You want to decrease or round down single entries or end amounts.
The rebate function allows - contrary to the discount function - to give
absolute price reductions.

1. Enter items as described in chapter 3.

2. Press the minus key.

3. Enter the amount of the rebate to two decimal places and confirm
with the asterisk key.

4. Enter further items and complete the transaction with the asterisk
key as described in section 3.1.
The decrease is printed on the ticket.

If you always want to reduce the total sum or single items by one or two
decimal places, then you can enter these settings in setup point 431.

...

Disc

0 ... 9

...

...



0 ... 9

...

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