KERN FKB 65k0.5 User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [email protected]
Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instruction
Precision/ compact balances and
platform scales
KERN 572/573/KB/DS/FKB/FCB/PCB
Version 5.3
01/2008
GB
572/573/KB/DS/FKB/FCB/PCB-BA-cz-0853

GB KERN 572/573/KB/DS/FKB/FCB/PCB
Version 5.3 01/2008
Operating instruction
Precision/compact balances and platform scales
Table of contents:
1MODE - MENUE _____________________________________________________ 4
2Technical data ______________________________________________________ 5
2.1 KERN 572 ____________________________________________________________ 5
2.2 KERN 573 ____________________________________________________________ 6
2.3 KERN KB ____________________________________________________________ 7
2.4 KERN FKB ___________________________________________________________ 7
2.5 KERN DS ____________________________________________________________ 8
2.6 KERN PCB ___________________________________________________________ 9
2.7 KERN FCB __________________________________________________________ 10
3Fundamental information (general)____________________________________ 10
3.1 Intended use ________________________________________________________ 10
3.2 Inappropriate use ____________________________________________________ 10
3.3 Guarantee___________________________________________________________ 11
3.4 Monitoring the test substances _________________________________________ 11
4Fundamental safety information ______________________________________ 12
4.1 Observe the information in the operating instructions ______________________ 12
4.2 Staff training ________________________________________________________ 12
5Transport and storage ______________________________________________ 12
5.1 Acceptance check____________________________________________________ 12
5.2 Packaging __________________________________________________________ 12
6Unpacking, installation and commissioning ____________________________ 12
6.1 Place of installation, place of use _______________________________________ 12
6.2 Unpacking __________________________________________________________ 13
6.2.1 Installation ________________________________________________________________ 13
6.3 Mains supply ________________________________________________________ 13
6.4 Connecting peripheral equipment _______________________________________ 13
6.5 Initial start-up________________________________________________________ 13
6.6 Adjustment__________________________________________________________ 13
6.7 Adjusting (go to 7.2.6)_________________________________________________ 13
6.7.1 Adjusting for verification (KERN 573) ___________________________________________ 14
6.8 Verification__________________________________________________________ 14
7Operation _________________________________________________________ 15
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7.1 Display control panel _________________________________________________ 15
7.2 Operation ___________________________________________________________ 16
7.2.1 Weighing with Tare _________________________________________________________ 16
7.2.2 Count – Selection Preference Piece ____________________________________________ 16
7.2.3 Percent % ________________________________________________________________ 16
7.2.4 Formula Weighing __________________________________________________________ 16
7.2.5 Tolerance Weighing_________________________________________________________ 16
7.2.6 Adjust____________________________________________________________________ 18
7.2.7 Preselect Tare _____________________________________________________________ 18
7.2.8 Auto Tare _________________________________________________________________ 18
7.2.9 Speed ___________________________________________________________________ 18
7.2.10 Auto Off ________________________________________________________________ 18
7.2.11 Variable Factor __________________________________________________________ 18
7.2.12 Preselect Unit ___________________________________________________________ 18
7.2.13 Display background illumination _____________________________________________ 20
7.3 Interface RS 232 C____________________________________________________ 20
7.4 RS 232 C Data output via interface RS 232 C ______________________________ 21
7.4.1 There are 4 methods for the data output via RS 232 C ______________________________ 21
7.4.2 Description of the data transfer ________________________________________________ 21
7.4.3 Numerator ________________________________________________________________ 21
7.5 Printer______________________________________________________________ 22
7.6 Underfloor weighing __________________________________________________ 22
8Maintenance, upkeep, disposal _______________________________________ 23
8.1 Cleaning ____________________________________________________________ 23
8.2 Maintenance, upkeep _________________________________________________ 23
8.3 Disposal ____________________________________________________________ 23
9Troubleshooting ___________________________________________________ 23
10 Declaration of conformity__________________________________________ 24

1 MODE - MENUE
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2 Technical data
2.1 KERN 572
KERN 572-30 572-31 572-32 572-33 572-35
Readability (d) 0.001 g 0.001 g 0.001 g 0.01 g 0.01 g
Weighing range (max) 161 g 241 g 301 g 1610 g 2410 g
Taring range (subtractive) 161 g 241 g 301 g 1610 g 2410 g
Reproducibility 0.001 g 0.001 g 0.001 g 0.01 g 0.01 g
Linearity ±0.003 g ±0.003 g ±0.003 g ±0.03 g ±0.03 g
Smallest piece weight 0.001 g 0.001 g 0.001 g 0.01 g 0.01 g
Recommended adjusting
weight F1 (not supplied) 100 g + 50 g 200 g 200 g + 100 g 1 kg + 500 g 2 kg
Humidity of air max. 80% rel. (not condensing)
Appropriate for verification no no no no no
Stabilization time (typical) 3 sec.
Permitted environmental
temperature +10 °C ... + 40 °C
Housing (B x D x H) mm 180 x 310 x 90
Vibration filter yes
Weighing plate mm Ø 106 Ø 106 Ø 150 Ø 150
Units see menu
Weight kg (net) 2.3 2.3 2.3 2.3 2.3
Data interface yes (RS232)
KERN 572-37 572-45 572-49 572-57
Readability (d) 0.01 g 0.05 g 0.1 g 0.1 g
Weighing range (max) 3010 g 12100 g 16100 g 24100 g
Taring range (subtractive) 3010 g 12100 g 16100 g 24100 g
Reproducibility 0.01 g 0.05 g 0.1 g 0.1g
Linearity ±0.03 g ±0.15 g ±0.3 g ± 0.3 g
Smallest piece weight 0.01 g 0.05 g 0.1 g 0.1 g
Recommended adjusting
weight F1 (not supplied) 2 kg + 1 kg 10 kg 10 kg + 5 kg 20 kg
Humidity of air max. 80% rel. (not condensing)
Appropriate for verification no no no no
Stabilization time (typical) 3 sec.
Permitted environmental
temperature +10 °C ... + 40 °C
Housing (B x D x H) mm 180 x 310 x 90
Vibration filter yes
Weighing plate mm Ø 150 160 x 200 160 x 200 160 x 200
Units see menu
Weight kg (net) 2.3 2.7 2.7 2.7
Data interface yes (RS232)

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2.2 KERN 573
KERN 573-46
Accuracy class II
Readability (d) 0.1 g
Verification value (e) 1g
Weighing range (max) 6500 g
Minimum load (Min) 5 g
Taring range (subtractive) 6500 g
Reproducibility 0.1 g
Linearity ±0.2 g
Smallest piece weight 0.3 g
Recommended adjusting weight F2 (not supplied) 5 kg
Verification value 1 g
Humidity of air max. 80% rel. (not condensing)
Stabilization time (typical) 2 sec.
Allowable ambient temperature 0° C to 50° C
Nominal temperature range +10 °C ... + 40 °C
Housing (B x D x H) mm 180 x 310 x 90
Units g, kg
Weighing plate mm 160 x 200
Data interface yes (RS232)
Weighing Units g, kg
Vibration filter yes
Weight (net) 2.7

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2.3 KERN KB
KERN KB 120-3 KB 200-3 KB 1200-2 KB 2000-2 KB 10000-1
Readability (d) 0.001 g 0.001 g 0.01 g 0.01 g 0.1 g
Weighing range (max) 121 g 201 g 1210 g 2010 g 10100 g
Taring range (subtractive) 121 g 201 g 1210 g 2010 g 10100 g
Reproducibility 0.001 g 0.001 g 0.01 g 0.01 g 0.1 g
Linearity ±0.003 g ±0.003 g ±0.03 g ±0.03 g ±0.3 g
Smallest piece weight 0.001 g 0.001 g 0.01 g 0.01 g 0.1 g
Recommended adjusting
weight F1 (not supplied) 100 g 200 g 1000 g 2000 g 10 kg
Humidity of air max. 80% rel. (not condensing)
Appropriate for verification no
Stabilization time (typical) 3 sec.
Permitted environmental tem-
perature 10° C to 40° C
Housing (B x D x H) mm 165 x 230 x 85
Weighing plate mm Ø 81 Ø 81 130 x 130 150 x 170
Units see menu
Vibration filter yes
Weight kg (net) 1.1 1.1 1.2 1.2 1.6
Data interface yes (RS232)
2.4 KERN FKB
KERN FKB 8k0.05 FKB 16k0.1 FKB 36k0.2 FKB 65k0.5
Readability (d) 0.05 g 0.1 g 0.2 g 0.5 g
Weighing range (max) 8100 g 16100 g 36100 g 65100 g
Taring range (subtractive) 8100 g 16100 g 36100 g 65100 g
Reproducibility 0.05 g 0.1 g 0.2 g 0.5 g
Linearity ± 0.15 g 0.3 g 0.6 g 1.5 g
Smallest piece weight 0.05 g 0.1 g 0.2 g 0.5 g
Recommended adjusting
weight F1 (not supplied) 5 kg + 2 kg 10 kg + 5 kg 20 kg + 10 kg 50 kg
Humidity of air max. 80% rel. (not condensing)
Appropriate for verifica-
tion no
Stabilization time (typical) 3 sec.
Permitted environmental
temperature + 10 °C ... + 40 °C
Housing (B x D x H) mm 350 x 390 x 120
Weighing plate (stainless
steel) mm 340 x 240
Vibration filter yes
Weight kg (net) 6.5
Data interface yes (RS232)

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2.5 KERN DS
KERN DS 5K0.05S DS 8K0.05 DS 10K0.1S DS 16K0.1 DS 20K0.1
Readability (d) 0.05 g 0.05 g 0.1 g 0.1 g 0.2 g
Weighing range (max) 5100 g 8100 g 10100 g 16100 g 20100 g
Taring range (subtrac-
tive) 5100 g 8100 g 10100 g 16100 g 20100 g
Reproducibility 0.05 g 0.05 g 0.1 g 0.1 g 0.1 g
Linearity ± 0.15 g 0.15 g 0.3 g 0.3 g 0.3 g
Smallest piece weight 0.05 g 0.05 g 0.1 g 0.1 g 0.1 g
Recomm. adjusting
weight F1 (not sup-
plied) 5 kg 5 kg + 2 kg 10 kg 10 kg + 5 kg 20 kg
Humidity of air max. 80% rel. (not condensing)
Appropriate for verifica-
tion no
Stabilization time
(typical) 3 sec.
Permitted environ-
mental temperature + 10 °C ... + 40 °C
Vibration filter yes
Housing
(B x D x H) mm 228 x 228 x 70 315 x 305 x 70 228 x 228 x 70 315x305x70 315x305x70
Weighing plate,
stainless steel 228x228 315x305 228x228 315x305 315x305
Units see menu
Vibration filter yes
Weight kg (net) 5.5 7.5 5.5 7.5 7.5
Data interface yes (RS232)
KERN DS 36K0.2 DS 36K0.2L DS 65K0,5 DS 100K0,5 DS 150K1
Readability (d) 0.2 g 0.2 g 0.5 g 0.5 g 1 g
Weighing range (max) 36100 g 36100 g 65100g 101000g 151000g
Taring range (subtrac-
tive) 36100 g 36100 g 65100g 101000g 151000g
Reproducibility 0.2 g 0.2 g 0.5g 0.5 g 1 g
Linearity ± 0.6 g 0.6 g 1.5 g 1.5 g 3 g
Smallest piece weight 0.2 g 0.2 g 0.5g 0.5 g 1 g
Recomm. adjusting
weight F1 (not sup-
plied) 20 kg + 10 kg 20 kg + 10 kg 50 kg 50 kg + 50 kg 3 x 50 kg
Humidity of air max. 80% rel. (not condensing)
Appropriate for verifica-
tion no
Stabilization time
(typical) 3 sec.
Permitted environ-
mental temperature + 10 °C ... + 40 °C
Vibration filter yes
Housing
(B x D x H) mm 315 x 305 x 70 450 x 350 x 115
Weighing plate,
stainless steel 315 x 305 450 x 350
Units see menu
Weight kg (net) 7.5 9.5
Data interface yes (RS232)

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2.6 KERN PCB
KERN PCB 200-3B PCB 240-3B PCB 2000-2B PCB 2400-2B PCB 10K0.05B
Readability (d) 0.001 g 0.001 g 0.01 g 0.01 g 0.05 g
Weighing range (max) 201 g 241 g 2010 g 2410 g 10.100 g
Taring range (subtrac-
tive) 201 g 241 g 2010 g 2410 g 10.100 g
Reproducibility 0.001 g 0.001 g 0.01 g 0.01 g 0.05 g
Linearity ± 0.003 g 0.003 g 0.03 g 0.03 g 0.15 g
Smallest piece weight 0.001 g 0.001 g 0.01 g 0.01 g 0.05 g
Recomm. adjusting
weight F1 (not sup-
plied) 200 g 200 g 2000 g 2000 g 10 kg
Humidity of air max. 80% rel. (not condensing)
Appropriate for verifica-
tion no
Stabilization time
(typical) 3 sec.
Permitted environ-
mental temperature + 10 °C ... + 40 °C
Vibration filter yes
Housing
(B x D x H) mm 170 x 250 x 85
Weighing plate,
stainless steel Ø 81 Ø 81 130 x 130 130 x 130 150 x 170
Units see menu
Vibration filter yes
Weight kg (net) 1 1 1.5 1.5 1.7
Data interface yes (RS232)

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2.7 KERN FCB
KERN FCB 12K0.1B FCB 24K0.2B
Readability (d) 0.1 g 0.2 g
Weighing range (max) 12100 g 24100 g
Taring range (subtrac-
tive) 12100 g 24100 g
Reproducibility 0.1 g 0.2 g
Linearity ± 0.3 g 0.6 g
Smallest piece weight 0.1 g 0.2 g
Recomm. adjusting
weight F1 (not sup-
plied) 10 kg 20 kg
Humidity of air max. 80% rel. (not condensing)
Appropriate for verifica-
tion no
Stabilization time
(typical) 3 sec.
Permitted environ-
mental temperature + 10 °C ... + 40 °C
Vibration filter yes
Housing
(B x D x H) mm 270 x 350 x 110
Weighing plate,
stainless steel 253 x 228
Units see menu
Vibration filter yes
Weight kg (net) 3.3
Data interface yes (RS232)
3 Fundamental information (general)
It is essential to read through and observe the complete operating instructions before installing and commis-
sioning.
3.1 Intended use
The balance you have acquired serves to determine the weighing value of the material to be weighed. It is
intended to be used as a “non-automatic“ balance, i.e. the material to be weighed is manually and carefully
placed in the centre of the weighing plate. The weighing value can be read off after a stable weighing value
has been obtained.
3.2 Inappropriate use
Do not use the balance for dynamic weighing. In the event that small quantities are removed or added to the
material to be weighed, incorrect weighing results can be displayed due to the “stability compensation“ in the
balance. (Example: Slowly draining fluids from a container on the balance.)
Do not leave a permanent load on the weighing plate. This can damage the measuring equipment.
Be sure to avoid impact shock and overloading the balance in excess of the prescribed maximum load rating
(max.), minus any possible tare weight that is already present. This could cause damage to the balance.
Never operate the balance in hazardous locations. The series design is not explosion-proof.
Structural alterations may not be made to the balance. This can lead to incorrect weighing results, faults
concerning safety regulations as well as to destruction of the balance.

572/573/KB/DS/FKB/FCB/PCB-BA-e-0853 11
The balance may only be used in compliance with the described guidelines. Varying areas of applica-
tion/planned use must be approved by KERN in writing.
3.3 Guarantee
The guarantee is not valid following
- non-observation of our guidelines in the operating instructions
- use outside the described applications
- alteration to or opening of the device
- mechanical damage and damage caused by media, liquids
- natural wear and tear
- inappropriate erection or electric installation
- overloading of the measuring equipment
3.4 Monitoring the test substances
The metrology features of the balance and any possible available adjusting weight must be checked at regu-
lar intervals within the scope of quality assurance. For this purpose, the answerable user must define a suit-
able interval as well as the nature and scope of this check. Information is available on KERN’s home page
(www.kern-sohn.com) with regard to the monitoring of balance test substances and the test weights required
for this. Test weights and balances can be adjusted quickly and at a reasonable price in KERN’s accredited
DKD calibration laboratory (return to national normal).

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4 Fundamental safety information
4.1 Observe the information in the operating instructions
Please read the operating instructions carefully before erecting and commissioning, even if you already have
experience with KERN balances.
4.2 Staff training
The device may only be operated and looked after by trained members of staff.
5 Transport and storage
5.1 Acceptance check
Please check the packaging immediately upon delivery and the device during unpacking for any visible signs
of external damage.
In the case of visible damages please obtain a signature from the bearer to serve as confirmation of dam-
age. Do not make alterations to the goods and packaging, do not remove any consignment parts. Report
the damage to the parcel service immediately in writing ( within 24 hours).
5.2 Packaging
Please retain all parts of the original packaging in case it should be necessary to return items at any time.
Only the original packaging should be used for return consignments.
Before despatch, disconnect all attached cables and loose/movable parts, remove weighing plate.
Apply any intended transport security devices. Secure all parts, e.g. glass windshield, weighing plate, power
unit etc., to prevent slipping and damage.
6 Unpacking, installation and commissioning
6.1 Place of installation, place of use
The balance is constructed in such a way that reliable weighing results can be achieved under normal appli-
cation conditions.
By selecting the correct location for your balance, you will be able to work quickly and precisely.
Therefore please observe the following at the place of installation:
- Place the balance on a firm, level surface;
- Avoid extreme heat as well as temperature fluctuation caused by installing next to a radiator or in the
direct sunlight;
- Protect the balance against direct draughts due to open windows and doors;
- Avoid jarring during weighing;
- Protect the balance against high humidity, vapours and dust;
- Do not expose the device to extreme dampness for longer periods of time. Inadmissible bedewing
(condensation of air moisture on the device) can occur if a cold device is taken into a significantly
warmer environment. In this case, please acclimatise the device for approx. 2 hours at room tem-
perature after it has been disconnected from the mains.
- Avoid static charging of the material to be weighed, weighing container and windshield.
Major display deviations (incorrect weighing results) are possible if electromagnetic fields occur as well as
due to static charging and instable power supply. It is then necessary to change the location.

572/573/KB/DS/FKB/FCB/PCB-BA-e-0853 13
6.2 Unpacking
Carefully remove the balance from its packaging, remove the plastic wrapping and position the balance in its
intended working location.
6.2.1 Installation
Install the balance in such a fashion that the weighing plate is absolutely horizontally.
6.3 Mains supply
Electric power supply is by means of the external mains supply circuit. The printed voltage level must comply
with the local voltage.
Only use original KERN mains supply circuits. The use of other makes is subject to approval by Kern.
6.4 Connecting peripheral equipment
The balance must be disconnected from the mains before connecting or disconnecting additional equipment
(printer, PC) to or from the data interface.
Only use KERN accessories and peripheral equipment with your balance. These have been ideally coordina-
ted to your balance.
6.5 Initial start-up
A warm-up time of 2 hours stabilises the measured values after switching on.
The accuracy of the balance depends on the local acceleration of the fall.
Please be sure to observe the information in the chapter on adjusting.
6.6 Adjustment
As the acceleration value due to gravity is not the same at every location on earth, each balance must be
coordinated – in compliance with the underlying physical weighing principle - to the existing acceleration
due to gravity at its place of location ( only if the balance has not already been adjusted to the location in the
factory). This adjustment process must be carried out during the initial start-up, after change in location and
variation of surrounding temperature. It is also recommendable to adjust the balance periodically during
weighing operation in order to obtain exact measured values.
6.7 Adjusting (go to 7.2.6)
Using a precision weight, the accuracy of the balance can be checked at any time and adjusted.
Warning:
With verified balances, this precision adjustment is not possible
Adjustment procedure:
Check that the surrounding conditions are stable.
A short warm-up time of about 15 minutes is recommended for stabilisation.

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6.7.1 Adjusting for verification (KERN 573)
General Information:
Prior to the procedure of verification the balance has to be adjusted.
Remark: The adjusting is only possible when not being blocked by the adjusting switch.
The switch for this step is located at the bottom of the housing between the two turning feet.
Switch to the right Adjusting function is released.
This setting has to be selected before starting the adjusting.
Executing the adjusting according to chapter 7.2 “Operation“.
After the adjusting has been completed successfully it is nec-
essary to turn the adjusting switch to the left for blocking.
Switch to the left Adjusting function is blocked.
After the adjusting has been completed successfully the ad-
justing has to be blocked by switching to the left.
The balance is now prepared for the procedure of verification.
After the verification the adjusting switch has to be secured by
a verification mark against access.
6.8 Verification
General:
According to the EU guideline 90/384/EEC balances must be verified officially if they are to be used as fol-
lows (legally regulated area):
a) For commercial transactions if the price of goods is determined by weighing
b) For the production of medines in pharmacies as well as for analyses in the medical and pharmaceu-
tical laboratory
c) For official purposes
d) For the production of finished packages
In case of doubt, please contact your local office of weights and measures.
Verification information
An EU qualification approval is available for those balances marked as appropriate for verification in the
technical data. In the event that the balance is applied in an area subject to verification as described above,
it must be officially verified and re-verified at regular intervals.
Re-verification of a balance is carried out in compliance with the respective legal provisions of the states.
The term of verification validity for balances in Germany, for example, is normally 2 years.
The legal provisions of the country of use are to be observed.

7 Operation
7.1 Display control panel
Keyboard
ON / OFF
Print weighing result
in MODE: No / descending
in % and counting mode:
Form reference
in MODE: Yes / ascending
MODE configuration
(see mode structure diagram page 2)
Formula weighing
in MODE: to left
Change g-pieces
Unit changeover
in MODE: to right
Tare
in MODE: back in weighing operation
Display-Symbol Meaning
==OVERLOAD== Overload: Weighing range has been exceeded
= ============ Underload: Weighing range has been fallen short of
<< . In counting and % mode: part too light
.
Automatic tare active
PTA .
Preselect tare Tare pre-selection active
D .
Difference in % during percentage weighing
Net .
Net weight of the components during formula preparation
SUM .
Gross weight of several components during formula prepa-
ration
Æ. Balance is in counting mode and currently displaying the
weight value of the counting amount
572/573/KB/DS/FKB/FCB/PCB-BA-e-0853 15

7.2 Operation
7.2.1 Weighing with Tare
7.2.2 Count – Selection Preference Piece
7.2.3 Percent %
7.2.4 Formula Weighing
7.2.5 Tolerance Weighing
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7.2.6 Adjust
7.2.7 Preselect Tare
7.2.8 Auto Tare
7.2.9 Speed
7.2.10 Auto Off
7.2.11 Variable Factor
7.2.12 Preselect Unit
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7.2.13 Display background illumination
After having switched on your balance and the zero display, press the „MODE“ button to select the menu
point „Backlight“. Acknowledge by pressing the „YES“ button in order to switch on the permanent back-
ground illumination. By pressing the „NO“ button, the background illumination is switched off.
If the background illumination shall be switched off time-controlled (to save the battery), press the „MODE“
button to select the menu point „Backlight auto“ and confirm by pressing the „YES“ button. The background
illumination will be switched off automatically 10 sec after having reached a stable weighing value.
7.3 Interface RS 232 C
Technical Data
8-bit ASCII Code
1 start bit, 8 data bits, 1 stop bits, no parity bit
Baud rate adjustable to 2400, 4800 and 9600 baud (default), 19200 baud
Sup-D- 9 pol. is necessary .
When working with an interface correct operation is secured only if the corresponding KERN-interface-
cable (max. 2m) is used.
Description of the jack
Sup-D- 9 pol.
5 1
9 6
Pin 2: Transmit data
Pin 3: Receive data
Pin 5: Signal ground
Baudrate
The Baud rate for the data transfer is adjusted with the MODE-key. The following example demonstrates
how to set the Baud rate 4800.
Select Baud rate Display
1. Press MODE-key repeatedly until "PRINTER" is displayed.
2. Press YES-key.
3. Press MODE-key repeatedly until the desired Baud rate appears (for
instance 4800 Baud).
4. Press YES-key to select 4800 Baud. The tick-mark (X) confirms the new
setting.
5. Press MODE-key repeatedly until the balance displays in grams again,
or press tare key.
PRINTER?
2400 Baud
4800 Baud
4800 Baud X
0,0 g
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