KERN FTB User manual

Operating Instructions
Electronic Platform Balance
KERN FTB
Version 1.0 03/03
KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
E-Mail: [email protected]
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2
1keypad
2scale specifications
3display
4weighing pan
5adjustable feet
6power supply:
6a: power cord(scale w/o battery)
6b: AC adapter (scale with battery)
8RS 3 C interface
10 spirit level ( only on certified scales )
11 hole for antitheft device
12 model plate
13 power cord or jack for AC adapter
14 maximum loads (ranges 1/ )
15 minimum loads (ranges 1/ )
16 verification scale interval (certified scale)
(ranges 1/ )
17 max. resolutions (ranges 1/ )
18 dynamic weighing symbol
19 net symbol when weighing with tare
20 weighing unit
21 stability detector
22 changed resolution (only certified scales)
23 certification brackets (certified scales e =10d)
25 weighing range display
26 battery discharge status
Rear of scale Scale specifications (example)
Display
Max1: 3kg Min1: 0g e1: 1g d1: 1g
Max : 6kg Min : 40g e : g d : g
1714 15 16
Overview
813 1112 10
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Contents
1 Putting into service ....................................................................................................................... 4
1.1 Unpacking and checking contents .................................................................................................. 4
1. Safety and environmental protection ................................................................................................ 4
1.3 Positioning and leveling the scale ................................................................................................... 5
1.4 Connecting to power supply ............................................................................................................ 6
1.5 Battery operation ............................................................................................................................. 6
1.6 Monitoring the test substances ........................................................................................................ 7
1.7 Verification ....................................................................................................................................... 7
2 Weighing ....................................................................................................................................... 8
.1 Switching on and off and zeroing .................................................................................................... 8
. Simple weighing .............................................................................................................................. 8
.3 Weighing with tare ........................................................................................................................... 8
.4 Recording weighing results .............................................................................................................. 9
.5 Special functions (master mode) ..................................................................................................... 9
3 Master ode .............................................................................................................................. 10
3.1 Overview and operation ................................................................................................................ 10
3. Adjustment (CAL) ........................................................................................................................ 10
3.3 Scale calibration (adjustment) ...................................................................................................... 11
3.4 Scale settings ............................................................................................................................... 14
3.5 Interface configuration .................................................................................................................. 15
3.6 Printing master mode settings ...................................................................................................... 17
3.7 Saving settings and exiting master mode ..................................................................................... 17
3.8 Making a typical setting in master mode ......................................................................................17
4 Other i portant infor ation ...................................................................................................... 18
4.1 Error messages ............................................................................................................................ 18
4. Cleaning instructions .................................................................................................................... 19
4.3 Declaration of conformity ............................................................................................................ 0
4.4 GEO-value table ...........................................................................................................................
4.5 Technical data .............................................................................................................................. 3
4.6 Interface commands .................................................................................................................... 5
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1Putting into service
Please read through these operating instructions carefully and adhere to them at all times. If you discover
that materials are missing or that the wrong ones have been supplied, or if you have any other problems
with your scale, please refer to the dealer or salesperson concerned.
1.1 Unpacking and checking contents
 Remove the scale and accessories from the packaging.
 Check for completeness. The basic scope of supply comprises:
 scale
 weighing pan
 AC adapter (only for models with integrated battery)
 operating instructions (this booklet)
 any special accessories as per packing list
1.2 Safety and environ ental protection
 Do not use the scale in hazardous areas (unless it is clearlyidenti-
fied as being approved for these areas).
 For service in wet areas or dusty environ ents, or if wet cleaning
is necessary, scales with IP 65 ingress protection must be used.
But even these scales must not be used in environments where
there is a risk of corrosion. The scales must never be drenched or
immersed in a liquid.
 If the power cord is damaged, the scale must no longer beoperat-
ed. Therefore check the cable regularly and ensure that a free space
of about 3 cm is left at the rear of the scale, so that the cable is not
kinked too severely.
 Never tamper with the retaining screws for the load plate support
underneath the weighing pan.
 When the weighing pan is removed, never insert a solid object
underneath the load plate support.
 It is not permitted to open the scale by removing the screws in its
base.
 Only use approved accessories and peripherals.
IP 65
ca. 3cm
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 Handle the scale carefully; it is a precision instrument. Blows on the
weighing pan must be avoided, and heavy overloads must not be
placed on it.
 Important instructions when using FTB scales in the food sector:
those parts of the scale can come into contact with food products
have smooth surfaces and are easy to clean. The materials used do
not splinter and are free from contaminants. In food processing areas
it is recommended that a protective cover is used. This must be
cleaned regularly, just like the scale itself. Damaged or heavily
contaminated protective covers must be replaced immediately.
 When the scale is finally taken out of service, observe the current
environmental regulations. If the scale is equipped with a battery,
this contains heavy metals and therefore must not be treated as
normal refuse! Local regulations for disposing of environmentally
hazardous substances must be complied with.
1.3 Positioning and leveling the scale
The correct location is a decisive factor in ensuring accurate weighing
results.
 Choose a stable and vibration-free location . Place the scale on a
surface that is as horizontal as possible and strong enough to bear
its weight when fully loaded.
 Check the ambient conditions (Section 4.5).
 Avoid:
 direct sunlight
 strong drafts (e.g. from fans or air conditioning systems)
 excessive temperature fluctuations.
 Turn the adjustable feet so that the scale is horizontal. If a spirit level
is fitted, the bubble must be located within the inner circle.
Major changes in geographical location:
Every scale is set by the manufacturer to suit the local gravitational
conditions (geographical adjustment value) in the geographical zone
to which the instrument is supplied. If a major change of geographical
location takes place, this setting must be adjusted by a service
technician or a new setting made. Certified scales must in addition be
recalibrated in accordance with national certification regulations.
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1.4 Connecting to power supply
 Before connecting the power supply plug or AC adapter (AccuPac
version), verify that the voltage stated on the model plate is the
same as the local power line voltage.
 Connect the power cord plug or the AC adapter plug to the supply,
then connect the AC adapter (AccuPac version) via the jack at the
rear of the scale.
Powering up the scale initiates a display test in which all the segments
and then the software version are briefly displayed. Once the decimal
zero appears in the display, the scale is ready to operate.
1.5 Battery operation
Scales with a built-in battery (AccuPac) can under normal operating
conditions work independently of the AC power line for about 0 hours
(MonoBloc version) or about 30 hours (strain gauge version).
Immediately the AC power supply is interrupted (by withdrawing the
power cord plug or if there is a power failure), the scale switchesauto-
matically to battery operation. Once the AC power supply is restored,
the scale reverts automatically to AC operation.
The battery symbol indicates the current discharge status of the
battery (1 segment corresponding to about 5% capacity). If the
symbol flashes, the battery must be recharged.
A discharged battery requires at least 8 hours until it is recharged.
During the charging process work with the scale can continue, but
under these conditions a longer charging time is needed.
The battery is protected against overcharging, and the scale can
therefore remain permanently connected with the AC power line
without any problems.
=000Ð
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The metrology features of the balance and any possible available adjusting weight must be
checked at regular intervals within the scope of quality assurance. For this purpose, the
answerable user must define a suitable 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).
General:
According to the EU guideline 90/384/EEC balances must be verified officially if they are to be used
as follows (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 pharmaceutical 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 years.
The legal provisions of the country of use are to be observed.
1.6
Monitoring
the
test
substances1.6
Monitoring
the
test
substances1.6
Monitoring
th
e
test
substances
1.7 Verification
1.6 Monitoring the test substances
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2Weighing
This section describes how to switch the scale on and off, zero and tare it, weigh materials and record the
results.
2.1 Switching on and off and zeroing
 Briefly pressing the key switches the scale on or off.
The scale carries out a display test (Section 1.4). Once the weight
display appears, the scale is ready to operate and automatically
zeroed.
Note: When necessary, the scale can be zeroed at any time with
the key.
2.2 Si ple weighing
 Place the object to be weighed on the scale.
 Wait until the stability detector (a small ring in the bottom left corner
of the display) disappears, then ...
 ... read the indicated weight.
2.3 Weighing with tare
 Place the e pty weighing container or packaging on the scale.
 Press the key briefly to tare the scale. The zero display and the
NET (net weight) symbol appear. Note: If the automatic tare
function has been activated in master mode (Section 3.4), there is
no need to press the key.
NET
=000Ð
=000Ð
 "416Ð
"420Ð
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Place the material to be weighed in the container, then ...
 ... read the indicated net weight.
2.4 Recording weighing results
 Press the key to send the current weighing result to the peripheral
device (printer, computer) via the interface. Factory default configures
interface 1 for connection to a printer.
Please refer to Section 3.5 for instructions on configuring the
interface(s).
2.5 Special functions ( aster ode)
In addition to simple weighing functions, the scale also has additional
options and settings that can be activated in master mode Sec-
tion3).
NET
ç216Ð
MAStEr
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3Master mode
Inmaster mode the scale settings can be changed and the various functions activated  to adapt the scale
for individual weighing needs.
3.1 Overview and operation
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.
Calibration
CAL
Settings
SCALE
Interface 1
1FACE1 1FACE 2
Print
LiSt
End
ENd
NAStEr
J
J
J J J J J
J
J
JJJJJ
Section 3.3 Section 3.4 Section 3.5 not docu-
mented
Section 3.6 Section 3.7
Weigh ode
=000Ð
Interface 2
J
*
Hold down key (about 5 seconds)
Briefly press key (YES). * Confirm the MASTER display
within 3 seconds to enter master mode.
Briefly press key (NO)
J
J
J
3.2 Adjust ent (CAL)
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