PCE Health and Fitness LS 500 User manual

www.pce-industrial-needs.com
Tursdale Technical Services Ltd
Unit N12B
Tursdale Business Park
Co. Durham
DH6 5PG
United Kingdom
Phone: +44 ( 0 ) 191 377 3398
Fax: +44 ( 0 ) 191 377 3357
[e-mail]
http://www.industrial-needs.com/
Manual
PCE LS 500 / PCE-LS 3000

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1. General description .............................................................................................................3
2. Completeness......................................................................................................................3
3. Balance description .............................................................................................................3
4.Keys and indicators ..............................................................................................................5
5. Technical data .....................................................................................................................6
6. Security rules.......................................................................................................................7
7. Preparations – working environment ...................................................................................8
8. Preparations – the balance..................................................................................................9
9. Operation principles...........................................................................................................10
10. Start-up........................................................................................................................... 11
11. Internal calibration ..........................................................................................................12
12. User functions menu........................................................................................................13
12.1 Autotaring...........................................................................................................14
12.2 Pieces counting function ....................................................................................15
12.3 External calibration / calibration options ..........................................................16
12.4 RS-232C interface setting ...............................................................................20
12.5 Print-out settings .............................................................................................20
12.6 Date and time setting ......................................................................................24
12.6 LCD settings....................................................................................................25
12.8 Language setting (option)................................................................................26
12.9 Weigh summing (option) .................................................................................27
12.10 Maximal /minimal value (option) ..................................................................28
12.11 Treshold signalization (option)....................................................................29
13. Connecting the balance to computer or printer................................................................ 32
14. Troubleshooting and maintenance ..................................................................................33
Declaration of Conformity......................................................................................................35

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1. General description
AG series balances are destined for high accuracy weighing in laboratory practice.
Balances are equipped with internal calibration system for proper accuracy control
during operation. The user should also own weight standard of OIML F2 or F1 class for
periodical control of the balance (weight value stated in Technical Data sheet) -
available for extra fee.
All balances are metrologically tested - calibration or legal verification certificate on
demand.
Legal verification is required for balances used in some applications: direct sale,
pharmaceutical prescriptions, medical and pharmaceutical analysis, goods packing and
others.
Balances with legal verification are mark with the following:
-protective seal placed on the casing mounting screw at the back of the balance,
-calibration switch protective seal,
-notified body stamps and green metrological marking placed on the balance name
plate.
PCE LS series balances are destined for purposes where verification is not required.
PCE LS series balances do not have internal calibration system and also all functions
connected with it are removed.
2. Completeness
A standard set consist of:
1. Balance
2. Pan elements:
-AG50-AG600 (round pan): a pan base and a pan,
-AG1000-AG4000, AG8 (rectangular pan): gum nuts (4pcs) and a pan,
3. Feeder (ZN12V/500mA)
4. User manual
5. Guarantee Card
3. Balance description
Front view (AG100-AG600)

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1 – pan
2 – pan support
3 – pan ring
4 – LCD display
5 – keys
6 – rotating legs
7 – water level
8 – antiblast shield
Note:
AG600 does not have the pan ring and the antiblast shield.
Front view (AG1000-AG4000, AG8)
1 – pan
2 – pan supports
4 – LCD display
5 – keys
6 – rotating legs
7 – water level

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Rear view:
4.Keys and indicators

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keys T -tare (subtract package weight from weighed mass)
key I/ -switch-off (standby),
key ENTER -confirm
key . -decimal point,
key 1/F1 ... 5/F5 -numeric / functional keys,
key 6/0 -numeric key / zeroing (balances for direct sale use only),
key 7/ -numeric key / data output (print / transmission),
key 8/ -numeric key / internal calibration,
key 9/MENU -numeric key / Menu,
key 0/ -numeric key / special function,
key > -enter an option,
key < -leave an option,
key  -navigation / move a cursor up,
 -navigation / move a cursor down,
indicator -result stabilisation,
indicator linear -tatal load indicator (0-100%),
indicator OFF -stand-by mode,
Max, Min, d, e, II -metrologic parameters and accuracy class.
5. Technical data
Type AG100 AG200 AG300 AG500
Capacity (Max) 100g 200g 300g 500g
Min load (Min) 0,02g 0,02g 0,02g 0,02g
Reading unit (d) 0,001g 0,001g 0,001g 0,001g
Verification unit
(e)
0,01g 0,01g 0,01g 0,01g
Tare range -100g -200g -300g -500g
A
ccuracy class II
Working
temperature
+18 ÷ +33°C
Weighing time <8s
Pan dimension 115mm
Balance base
dim.
215(235)x345x90mm
Balance weight 5kg
Power ~230V 50Hz 6VA / =12V 300mA
Calibration weight
(OIML)
100g
F2
200g
F2
200g
F2
500g
F1

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Type AG600 AG100 AG200 AG300 AG4000 AG8
Capacity (Max) 600g 1000g 2000g 3000g 4000g 8000g
Min load (Min) 0,5g 0,5g 0,5g 0,5g 0,5g 5g
Reading unit (d) 0,01g 0,01g 0,01g 0,01g 0,01g 0,1g
Verification unit
(e)
0,1g 0,1g 0,1g 0,1g 0,1g 1g
Tare range -600g -1000g -2000g -3000g -4000g -8000g
Accuracy class II
Working
temperature
+18 ÷ +33°C
Weighing time <5s
Pan dimension 150mm 165x165mm
Balance base
dim.
215(235)x345x90mm
Balance weight 5kg
Power ~230V 50Hz 6VA / =12V 300mA
Calibration weight
(OIML)
500g
F2
1000g
F2
2000g
F2
5000g
F2
6. Security rules
To avoid electrical shock or damage of the
balance or connected peripheral devices, it is
necessary to follow the security rules below.
•All repairs and necessary regulations can be made by authorised
personnel only.
•To avoid fire risk use a feeder of an appropriate type (supplied with the
balance). Pay attention that supply voltage is compatible with specified
technical data.
•Do not use the balance when its cover is opened.
•Do not use the balance in explosive conditions.
•Do not use the balance in high humidity.
•If the balance seems not to operate properly, unplug it from the mains
and do not use until checked by authorised service.

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7. Preparations – working environment
+18°C
+33°C
When choosing a location to set up the balance, remember the following rules to ensure
proper working conditions and user-friendly operating:
-setup the balance on an even, flat surface leaving neccesary room for easy acces,
-maintain proper working temperature,
-avoid strong air drafts, vibrations, dust, big temperature changes and humidity over
90%,
-avoid locations with extreme heat radiation and electromagnetic or magnetic fields.

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8. Preparations – the balance
1. Take the balance and supplied accessories (a feeder, pan elements) out of the box.
2. Place the balance on a stable ground not affected by mechanical vibrations and
airflows.
3. Level the balance with rotating rear legs 6 so that the air bubble in water-level 7 at the
back of the balance is in the middle.
4. (for AG100-AG600) Gently insert the mandrel of pan support 2 into pan socket
through the pan ring 3. Put the decorative pan 1 on (AG600 balances have decorative
pan joined with pan support).
5. (for AG1000-AG8) Place supports 2 on mandrels visible in balance cover hole put
pan 1 on supports.
7
6
123
7
6
1
2

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6. Plug a feeder to the power socket at the back of the balance.
Leave the pan empty and plug the feeder to the mains. At the end of self-tests, the
balance displays zero indication and is now ready to work.
9. Operation principles
1. To ensure proper weighing accuracy the balance is equipped with internal calibration
system. The system automatically calibrates the balance every 2 hours and with
temperature changes (more than 1°C) without user ingerence. Nevertheless, it is
advised to check balance accuracy with weight standard (or other object with known
weight) before and after each series of measurements.
2. Weighed sample should be placed in the centre of the pan.
3. In direct sale use (d=e), make sure that zero indicator is displayed. If not, press 0
key and wait until zero indication and zero indicator appears. In other balances the
key does not operate.
4. The balance is equipped with a tare equal to its range. To tare the balance press
→ T ← key. Storing a tare value does not extend measuring range, but only subtracts
it from a load placed on a pan. To make weight control easier and to avoid range
overdrawing, the balance is equipped with a load indicator (graduated in
percentages).
5. Weighing result should be read when the indicator " " lights, which signalises
stabilisation of a result.
6. When the balance is not used but it is necessary to be ready to work immediately, it
can be switched off by pressing I/key. The balance reading system is then
switched off to "standby" mode (signalled by the indicator "OFF"). To switch the
balance on press I/key. The balance is immediately ready to operate maximum
accuracy (after self tests).
Moisture in the air may condense on the surface of the balance when
transferred to the warmer environment. In this case leave the balance for at
least 4 hours unplugged from the mains for conditioning to avoid wrong
operating or damage of the balance.

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7. The mechanism of the balance is a precise device, sensitive to mechanical strokes
and shocks.
8. The balance should not be used to weigh ferromagnetic materials due to accuracy
decrease.
9. When the balance is moved to another localisation remember to level the balance
and proceed with internal calibration.
10. Start-up
After switching-on, the balance
performs automatic self-test. Each
test must be accepted and
confirmed with mark.
After self-test the balance
proceeds with internal calibration
mode as described in chapter 11.
When internal calibration is
finished, the balance is in normal
weighing mode.
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Do not overload the balance more then 20% of maximum load (Max).
Do not press a pan with a hand.
Before transportation take off the pan (move it slightly and lift it up) and the
pan base and preserve from any damages.

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11. Internal calibration
Internal calibration is performed automatically after each start-up, also every 2 hours
and with temperature changes more than 1°C.
To calibrate the balance with internal weight, simply empty the pan and press key
twice.
Press key twice.
Until calibration process is finished
do not perform any operation, as any
vibrations and shocks may affect the
process of calibration and delay the
calibration or deteriorate the result.
The calibration weight is placed on
the pan three times to avoid
inaccurate calibration result. In case
any problems during calibration, the
error is signalised on the display and
calibration process is stopped. The
result of correct calibration is zero
indication.
In case internal calibration does not ensure proper accuracy of the balance (e.g. results
of weighing object of known weight are wrong), please contact the nearest service
centre.

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12. User functions menu
All balances, beside basic functions like weighing and tare, are equipped with additional
functions. Basic set of special functions is shown below. In respect of metrology
calibration with external weight is important special function.
Other functions: recipe ingredients summing, density calculation etc. can be enabled as
an option on customer request (described in additional brochure when ordered).
To enter the user menu press Menu
key. The cursor (dark background) is
placed at the top.
To move the cursor, use the navigation
keys:▼and ▲.
- function activated
- function deactivated
To enter chosen function and open the
menu of the function press ENTER key.
To return to the previous window press
< key. To leave the user menu and
return to weighing mode choose Exit
option.
Easy access to the most useful
functions will shorten operation time and
make work more comfortable. To
remove a function from the function
menu, use Menu settings option.
Select function by cursor and press
ENTER key. Chosen functions should
be signified with mark.
To quickly go from functions menu to
Menu settings press key.
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borrar la imagen e in sertarla de
nuevo.

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12.1 Autotaring
This function automatically keeps zero indication when a pan is empty or zero indication
was forced with → T ← key.
Press Menu key to enter the user
function menu, choose Autotaring and
press ENTER key.
Choose Correction range using ∨and ∧
keys and press ENTER key.
Enter maximum zero flow to be
automatically corrected (choose
between 0.5 ÷ 5 verification unit(s) per
second).
Choose Activate option and press
ENTER.
Any changes off the zero readout that
are equal to a defined fraction of digits
per second are automatically tared,
independently of changing environment
conditions (temperature, humidity, etc.).
To leave the function press Menu key, choose Autotaring function and then choose
Deactivate option.

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12.2 Pieces counting function
1. Counting with a reference sample
Place a reference sample with known
number of pieces on the pan.
Press Menu key to enter the user
function menu, choose Counting with
the cursor and press ENTER key.
Chose Pieces quantity option and
press ENTER key.
Using numeric keys enter the quantity
of the sample and press ENTER key.
The balance calculates unit weight
basing on given number of pieces and
reference sample weight and then
shows number of pieces on the
display.
Reference sample parameters may be used in series of weighing. To recall previously
used sample parameters start Counting function with Activate option.
To leave the function press Menu key, choose Counting function and then choose
Deactivate option.
Note:
To switch between weighing mode and pieces counting mode press key.

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2.Counting with unit weight.
Press Menu key to enter the user
function menu, chose Counting and
press ENTER key.
Chose Unit weight option and press
ENTER key
Enter unit weight value using numeric
keys and press ENTER to accept. The
unit weigh value is stored in balance
memory until switched off.
The balance displays pieces amount.
Note: To correct wrong digits when entering unit weight, press < key to delete the last
number or CLR to leave the function and proceed from the beginning.
12.3 External calibration / calibration options
Calibration with external weight standard in verified balances should be performed in
case balance indications exceed permissible error. To calibrate the balance a service
centre should use calibration weight as stated in Technical Data table (or of better
accuracy) with valid calibration certificate.
Calibration of EC verified balance requires to destroy a mark for protecting
an access to adjustment switch and results in loosing its EC verification. To
renew EC verification of a balance, contact with service or notified body is
necessary.

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In EC verified balances executing a
calibration requires to change
adjustment switch position, which is
placed behind the mark (sticker) of a
notified body. An access to the switch is
possible only after the mark is removed,
which causes loosing EC verification of
the scale. To renew EC verification of a
balance, contact with service or notified
body is necessary.
In order to store results of calibration with external weight it is possible to print
calibration report (see Calibration options). For this purpose a printer or a computer with
testing program is necessary.
The report printout example
- external weight value registered during
factory calibration
- internal weight value registered during factory
calibration
- external weight value registered during last
calibration
- internal weight value registered during last
external calibration
- difference between internal weight values:
factory value–current value
Calibration options:
ON OFF
Adjustment
switch Mark
Date : ... Time: ...
Calibration report
--------------------------------
Date of production: ...
Serial number: ...
Program version: ...
Adjustment no.: ...
Factory external weight:
...
Factory internal weight:
...
Current external weight:
...
Current internal weight:
...
Weight difference: ...

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If an access to adjustment switch is not
protected with the mark, with a thin
screwdriver set adjustment switch to ON
position (balance displays the message
Calibration switch ON and makes a
sound).
Press MENU key choose Calibration
option and press ENTER.
Option External weight enables to enter
the value of used calibration weight.
Choose External weight option, press
ENTER and use >and < keys to select
desired value. It is advised to use as
great weight value as possible.
Calibration of time and Calibration of
temperature option is related with
internal calibration.
To print a calibration report, connect a
printer and use Report printout option.
Calibration report is a proof of correct
calibration process and may be useful
for balance diagnostics.

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Calibration sequence:
Press Menu key, choose Calibration
option and press ENTER to accept
(calibration must be enabled).
Check if External weight value is equal to
external weight value used for calibration.
If not, choose External weight option and
enter correct value.
Choose External calibration option and
press ENTER to accept.
Wait until taring process is finished and
load the pan with the calibration weight of
correct value.
Take off the calibration weight.
Wait until external calibration is finished.
After external calibration the balance
switches to the weighing mode.

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12.4 RS-232C interface setting
To enable cooperation with a printer (or a computer), transmission parameters must be
equal in both devices.
This function enables the following transmission parameters:
-send and receive speed (1 200 ÷115 200bps),
-number of bits (7 or 8 Bytes),
-parity control (none, even, odd),
-protocole type (default protocole - LONG),
-transmission mode (after / PRINT key pressing with stable indication, directly
after / PRINT key pressing without stable indication, automatically after
stabilisation of each weighing result, continuous transmission in 0,1s periods).
Press MENU key to enter the user
function menu, choose RS232C settings
and press ENTER key.
Check if balance RS232C interface
transmission parameters are compliant
with connected external device
parameters.
To enter correct parameters values select
desired parameter using ∨and ∧keys and
press ENTER key.
Set correct parameter value using < and >
keys and press ENTER to accept.
To leave the function press MENU key or
use Exit option.
12.5 Print-out settings
This function enables to select desired information, which will be used on print-outs:
-numeration of succesive measurements,
-date and time of each measurement,
-custom information (optional) – additional text entered with a computer keyboard.