Mettler Toledo BBA422, BBA425, BBK422 User Manual
User manual
METTLER TOLEDO
Compact scales BBA422 / BBA425 / BBK422
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use according to this Operating Manual and regular calibration and maintenance by
our factory-trained service team ensures dependable and accurate operation,
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Table of contentsBBA422 / BBA425 / BBK422
3User manual 22013180B 05/08
Table of contents
Page
1 Introduction .....................................................................................4
1.1 Safety instructions .............................................................................4
1.2 Description ......................................................................................5
1.3 Putting into operation ........................................................................9
1.4 Disposal ........................................................................................11
2 Operation ......................................................................................12
2.1 Switching on and off .......................................................................12
2.2 Zeroing / Zero point correction ..........................................................12
2.3 Simple weighing .............................................................................12
2.4 Weighing with tare ..........................................................................13
2.5 Dynamic weighing ..........................................................................14
2.6 Printing results ...............................................................................14
2.7 Cleaning ........................................................................................15
3 Settings in the menu ......................................................................16
3.1 Operating the menu ........................................................................16
3.2 Overview .......................................................................................18
3.3 Scale settings (SCALE) ....................................................................21
3.4 Application settings (APPLICATION) ..................................................23
3.5 Terminal settings (TERMINAL) ..........................................................24
3.6 Configuring interfaces (COMMUNICATION) .........................................25
3.7 Diagnosis and printing out of the menu settings (DIAGNOS) ................28
4 Interface description ......................................................................29
4.1 SICS interface commands ................................................................29
4.2 TOLEDO Continuous mode ..............................................................31
5 Event and error messages ..............................................................33
6 Technical data and accessories ......................................................35
6.1 Technical data ................................................................................35
6.2 Accessories ....................................................................................39
7 Appendix ......................................................................................40
7.1 Safety checks .................................................................................40
7.2 FCC ...............................................................................................40
8 Index ............................................................................................41
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Introduction
User manual 22013180B 05/08
1 Introduction
1.1 Safety instructions
DANGER!
Electric shock hazard!
▲ Always pull out the mains plug before any work on the device.
DANGER!
Electric shock hazard if the mains cable is damaged!
▲ Check the mains cable for damage regularly and replace it immediately if it is dam-
aged.
▲ On the rear side of the device, maintain a clearance of at least 1.2" (3 cm) in order
to prevent the mains cable bending too much.
CAUTION!
On no account open the device!
The warranty is void if this stipulation is ignored. The device may only be opened by
authorized persons.
▲ Call METTLER TOLEDO Service.
CAUTION!
Do not use BBA422 / BBA425 / BBK422 in hazardous areas!
Our product range includes special devices for hazardous areas.
CAUTION!
Scales with protection level IP65 are dust-tight and hose-proof to EN 60529. They are
suitable for use in dusty environment and brief contact with liquids. Ensure that the
scale is dried off again after coming into contact with liquid.
Even with degree of protection IP65 the scale should not be used in environments in
which there is a risk of corrosion.
▲ Do not flood the scale or submerge it in liquid.
IntroductionBBA422 / BBA425 / BBK422
5User manual 22013180B 05/08
CAUTION!
Handle the compact scale with care.
The scale is a precision instrument.
▲ When the weighing pan has been removed, never clean the area under the load
plate holder with a solid object!
▲ Do not put excessive loads on the scale.
▲ Avoid banging the weighing pan.
Note Use with foodstuffs
Parts coming into contact with foodstuffs have smooth surfaces and are easy to clean.
The materials used do not splinter and are free of harmful substances.
With foodstuffs, it is recommended to use the protective cover, see section 6.2 Accessories.
➜ Clean the protective cover regularly and carefully.
➜ Replace damaged or very dirty protective cover immediately.
1.2 Description
This user manual applies to the following types of compact scales:
• Compact scale BBA422... with strain gauge weighing cell, Protection Class IP43
• Compact scale BBA425... with strain gauge weighing cell, Protection Class IP65
• Compact scale BBK422... with MonoBloc, Protection Class IP43
The compact scales are available in a small and large size in various capacities and
resolutions.
The power supply is carried out via a built-in power supply device, an internal
rechargeable battery with an external mains adapter or an external battery.
One of the following options can also be ordered:
• Additional interface RS232 or RS485
• Ethernet interface
• USB interface
• Digital I/O
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Introduction
User manual 22013180B 05/08
1.2.1 Overview
1 Display
2 Scale specifications
3 Load plate
4 Adjustable feet
5 Keys
1 Power supply
connection
2 Fast and fine pressure
equalization, only with
Protection Class IP65
3 Optional interface
4 (Standard) RS interface
1
2
3
4
5
431 2
IntroductionBBA422 / BBA425 / BBK422
7User manual 22013180B 05/08
1.2.2 Display
1 Active interface
2 Weighing range display
3 Battery charge level; only present on scales with a battery
4 Symbol for displaying net values
5 Symbol for dynamic weighing
6 Weight units
7 7-segment display, 7 digits, with decimal point
8 Stability monitor (goes out when a stable weight value is reached)
9 Sign
10 Identification for changed or calculated weight values, e.g. higher resolution,
minimum weight not reached
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Introduction
User manual 22013180B 05/08
1.2.3 Keypad
Main functions
Additional functions
Key Function in operating mode Function in the menu
Switching device on / off, abort To the last menu item –End-
Setting scale to zero Scrolling back
Taring scale Scrolling forward
Transfer key
Long key press: Calling up menu
Activating menu item
Accepting selected setting
0
T
Key Function
Switching weight unit
Clear key
Units
Clear
C
IntroductionBBA422 / BBA425 / BBK422
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1.3 Putting into operation
1.3.1 Selecting or changing the location
The correct location is crucial to the accuracy of the weighing results!
Major geographical
location changes
The manufacturer adjusts each scale to the local gravity conditions (GEO value). In
the event of major geographical location changes, this setting must be adjusted by a
service technician. Certified scales must also be recertified observing the national certification regulations. These steps are not necessary for scales with an internal calibration weight.
➜ Select a stable, vibration-free and if possible a horizontal location.
The ground must be able to safely bear the weight of the fully loaded scale.
Observe the following environmental conditions:
• No direct sunlight
• No strong drafts
• No excessive temperature fluctuations
Aligning the scale
Only scales that have been aligned precisely horizontally provide accurate weighing
results.
➜ Turn the adjustable feet of the scale until the spirit level’s air bubble is inside the
inner circle.
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Introduction
User manual 22013180B 05/08
1.3.2 Connecting the power supply
CAUTION!
Before connecting the scale to the mains, check whether the voltage value printed on
the rating plate corresponds with the local mains voltage.
▲ Never connect the device if the voltage value printed on the rating plate is different
to the local mains voltage.
➜ Plug the mains plug into the socket.
After connection, the device performs a self-test. When the zero display appears,
the device is ready to weigh.
➜ Calibrate the device in order to obtain the greatest possible precision, see
Section 3.3.1.
Note The storage battery is also suitable for permanent mains operation.
➜ In order to obtain the full nominal capacity we recommend that you discharge the
storage battery at regular intervals (approx. every 4 weeks) through normal
operation.
Scales with a built-in battery can work independently from the mains for approximately 30 hours in normal operation. A prerequisite for this is that the background
lighting is switched off and that no peripheral devices are connected.
The device automatically switches to battery operation as soon as the mains supply
is interrupted. When the mains supply is restored, the device automatically switches
back to mains operation.
The battery symbol indicates the present charging level of the battery. 1 segment corresponds to approx. 25 % capacity. When the symbol flashes the battery must be
charged (min. 4 hours). The charging period is extended if work is continued during
charging. The battery is protected against overcharging.
The charging time of the storage battery amounts to approx. 6 hours. If the device
continues to be operated during the charging process, the charging time is extended.
The storage battery has a service life of approx. 1,000 charging/discharging cycles.
IntroductionBBA422 / BBA425 / BBK422
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1.4 Disposal
In conformance with the European Directive 2002/96 EC on Waste Electrical and
Electronic Equipment (WEEE) this device may not be disposed of with domestic
waste. This also applies to countries outside the EU, per their specific requirements.
➜ Please dispose of this product in accordance with local regulations at the collecting
point specified for electrical and electronic equipment.
If you have any questions, please contact the responsible authority or the distributor
from which you purchased this device.
Should this device be passed on to other parties (for private or professional use), the
content of this regulation must also be related.
Thank you for your contribution to environmental protection.
If the device is equipped with a storage battery:
The nickel metal hydride (NiMH) storage battery does not contain any heavy metals.
However, it may not be disposed of with the normal refuse.
➜ Observe the local regulations on the disposal of materials that are hazardous to the
environment.
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Operation
User manual 22013180B 05/08
2 Operation
2.1 Switching on and off
Switching on ➜ Press .
The scale conducts a display test. When the weight display appears, the scale is
ready to weigh.
Switching off ➜ Press .
Before the display goes out, -OFF- appears briefly.
2.2 Zeroing / Zero point correction
Zeroing corrects the influence of slight changes on the load plate.
Manual 1. Unload scale.
2. Press .
The zero display appears.
Automatic In the case of scales that cannot be certified, the automatic zero point correction can
be deactivated in the menu or the amount can be changed.
As standard, the zero point of the scale is automatically corrected when the scale is
unloaded.
2.3 Simple weighing
1. Place weighing sample on scale.
2. Wait until the stability monitor goes out.
3. Read weighing result.
OperationBBA422 / BBA425 / BBK422
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2.4 Weighing with tare
2.4.1 Taring
➜ Place the empty container on the scale and press .
The zero display and the symbol NET appear.
The tare weight remains saved until it is cleared.
2.4.2 Clearing the tare
➜ Press .
The symbol NET goes out, and the scale goes to gross mode.
If A.CL-tr is activated in the menu, the tare weight is automatically cleared as soon
as the scale is unloaded.
2.4.3 Automatic taring
Prerequisite
A-tArE is activated in the menu under SCALE –> tArE, the symbol T flashes in
the display.
The packaging material must be heavier than 9 display steps of the scale.
➜ Place the container or packaging material on the scale.
The packaging weight is automatically saved as the tare weight, the zero display
and the symbol NET appear.
2.4.4 Chain tare
Prerequisite
The tare function CHAIn.tr is activated in the menu.
With this function it is possible to tare several times if, for example, cardboard is
placed between individual layers in a container.
1. Place the first container or packaging material on the scale and press .
The packaging weight is automatically saved as the tare weight, the zero display
and the symbol NET appear.
2. Weigh the weighing sample and read/print out the result.
3. Place the second container or packaging material on the scale and press
again.
The total weight on the scale is saved as the new tare weight. The zero display
appears.
4. Weigh the weighing sample in the second container and read/print the result.
5. Repeat the last two steps for other containers.
T
C
T
T
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