RADWAG WTC series User manual

WTC 600
WTC Series Verified Balance
USER MANUAL
ITKU-24-03-01-17-EN

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JANUARY 2017

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CONTENTS
1. GENERAL INFORMATION...................................................................................................................... 5
2. PRECAUTIONS ....................................................................................................................................... 5
2.1. Maintenance .................................................................................................................................... 5
2.2. Battery ............................................................................................................................................. 5
3. WARRANTY CONDITIONS ..................................................................................................................... 6
4. BALANCE DESIGN ................................................................................................................................. 6
4.1. Dimensions ...................................................................................................................................... 6
4.1.1.Connection Cables - Diagrams ................................................................................................ 7
4.1.2.Connectors description ............................................................................................................ 7
5. UNPACKING AND INSTALLATION ........................................................................................................ 8
6. START-UP ............................................................................................................................................... 8
6.1. Levelling........................................................................................................................................... 8
6.2. Powering the Device ........................................................................................................................ 8
6.3. Battery Status .................................................................................................................................. 9
6.4. Battery Power .................................................................................................................................. 9
7. MAINTENANCE ACTIVITIES................................................................................................................... 9
7.1. Cleaning ABS components .............................................................................................................. 9
7.2. Cleaning stainless steel components.............................................................................................10
8. TEMPERATURE STABILIZATION ........................................................................................................ 10
9. KEYPAD ................................................................................................................................................ 10
10. KEYS ................................................................................................................................................... 11
11. PROGRAM .......................................................................................................................................... 11
12. OPERATING BALANCE MENU ..........................................................................................................12
12.1. Keypad ........................................................................................................................................ 12
12.2. Return to the Weighing Mode ...................................................................................................... 13
13. WEIGHING........................................................................................................................................... 13
13.1. Taring .......................................................................................................................................... 14
13.2. Manual Tare Entering .................................................................................................................. 15
13.3. Zeroing ........................................................................................................................................ 15
13.4. Weighing for Dual Range Balances ............................................................................................. 16
13.5. Basic Weighing Unit Selection..................................................................................................... 16
13.6. Temporary Weighing Unit Selection............................................................................................. 17
14. MAIN PARAMETERS .......................................................................................................................... 18
14.1. Filter Level ................................................................................................................................... 18
14.2. Autozero ...................................................................................................................................... 19
14.3. Tare ........................................................................................................................................... 19
14.4. Median Filter................................................................................................................................ 20
15. RS 232 SETTINGS .............................................................................................................................. 21
15.1. Printout type ................................................................................................................................ 22
15.2. LO Threshold............................................................................................................................... 23
15.3. Baud Rate.................................................................................................................................... 23
15.4. Setting Serial Communication Parameters .................................................................................. 24
16. MISCELLANEOUS .............................................................................................................................. 25
16.1. Backlight...................................................................................................................................... 25
16.1.1. Backlight for Power Supply From Mains .............................................................................. 25
16.1.2. Backlight for Power Supply From Mains or Battery .............................................................. 26
16.2. 'Beep' Sound ............................................................................................................................... 27
16.3. Automatic Shutdown.................................................................................................................... 27
16.4. Battery Charging.......................................................................................................................... 28
17. WORKING MODES ............................................................................................................................. 29
17.1. Running Working Mode ............................................................................................................... 30
17.2. Working Modes Accessibility ....................................................................................................... 30
17.3. Selection of Modes Quantity Available For the User.................................................................... 31
17.4. Counting Parts of the Same Mass ............................................................................................... 31
17.5. +/- Control Against Set Reference Sample Mass......................................................................... 33
17.6. Percent Weighing Against Reference Sample Mass.................................................................... 35
17.6.1. Reference Mass Determined by Weighing........................................................................... 35
17.6.2. User-Determined Reference Mass....................................................................................... 35

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17.7. Autotare....................................................................................................................................... 36
17.8. Peak Hold.................................................................................................................................... 37
17.9. Totalizing ..................................................................................................................................... 37
17.9.1. Totalizing Procedure............................................................................................................37
17.9.2. Last Total Sum Value Storage ............................................................................................. 38
17.9.3. Function disabling:............................................................................................................... 39
17.10. Animal Weighing........................................................................................................................ 39
17.11. Tare Values Storage.................................................................................................................. 41
17.11.1. Entering Tare Value to Balance Memory ........................................................................... 41
17.11.2. Selecting Tare Value in Balance Memory .......................................................................... 42
18. ADJUSTMENT..................................................................................................................................... 42
18.1. Adjustment................................................................................................................................... 42
18.2. Start Mass Determination ............................................................................................................ 44
19. COOPERATION WITH PRINTER........................................................................................................45
20. COOPERATION WITH COMPUTER ................................................................................................... 46
21. COMMUNICATION PROTOCOL......................................................................................................... 47
21.1. General Information..................................................................................................................... 47
21.2. List of Commands........................................................................................................................ 47
21.3. Response Format ........................................................................................................................ 48
21.4. Commands Overview................................................................................................................... 48
21.4.1. Zeroing ................................................................................................................................ 48
21.4.2. Tarring ................................................................................................................................. 49
21.4.3. Give Tare Value................................................................................................................... 49
21.4.4. Set tare ................................................................................................................................ 49
21.4.5. Send stable measurement result in basic measuring unit .................................................... 50
21.4.6. Immediately send measurement result in basic measuring unit ........................................... 50
21.4.7. Send stable measurement result in current measuring unit ................................................. 51
21.4.8. Immediately send measurement result in current measuring unit ........................................ 51
21.4.9. Switch on continuous transmission in basic measuring unit................................................. 52
21.4.10. Switch off continuous transmission in basic measuring unit .............................................. 52
21.4.11. Switch on continuous transmission in current measuring unit............................................ 52
21.4.12. Switch off continuous transmission in current measuring unit............................................ 53
21.4.13. Lock balance keypad......................................................................................................... 53
21.4.14. Unlock balance keypad...................................................................................................... 53
21.4.15. Give balance serial number ............................................................................................... 53
21.4.16. Send all implemented commands...................................................................................... 54
21.5. Manual Printout / Automatic Printout ........................................................................................... 54
21.6. Continuous Transmission ............................................................................................................ 55
21.7. Printout Customization................................................................................................................. 56
22. TECHNICAL SPECIFICATIONS.......................................................................................................... 56
23. TROUBLESHOOTING......................................................................................................................... 57
24. ERROR MESSAGES........................................................................................................................... 57
25. ADDITIONAL EQUIPMENT................................................................................................................. 58

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1.GENERAL INFORMATION
WTC 600 precision balance enables fast and accurate mass measurements
under laboratory conditions.
The weighing pan, made of stainless steel and equipped with anti-draft shield,
is an integral part of WTC 600 balance. Backlit LCD display ensures clear
measurement result. WTC balance is equipped with an internal battery (comes
standard), so it does not have to be connected to the mains.
WTC 600 precision balance is equipped with RS 232 interface that enables
communication between the balance and peripheral devices (e.g. printer,
computer).
2.PRECAUTIONS
2.1. Maintenance
A. Prior first use, carefully read this User Manual. Use the balance only as
intended;
B. Balance to be decommissioned, should be decommissioned in
accordance with valid legal regulations.
2.2. Battery
WTC 600 precision balance is supplied by NiMH-type battery (nickel-metal-
hydrogen) of 1800-2800 mAh capacity.
In case of prolonged storage of the balance in low temperature,
the battery has to be charged.
A worn out battery can be replaced only by the manufacturer or
by the authorized service.
The equipment including accumulators does not belong to
regular household waste. The European legislation requires
electric and electronic equipment to be collected and disposed
separately from other communal waste with the aim of being
recycled.

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Notice:
Symbols on accumulators identify harmful compounds: Pb = lead, Cd =
cadmium, Hg = mercury.
3.WARRANTY CONDITIONS
A. RADWAG feels obliged to repair or exchange all elements that appear to
be faulty by production or by construction,
B. Defining defects of unclear origin and means of their elimination can only
be realized with assistance of manufacturer and user representatives,
C. RADWAG does not bear any responsibility for defects or losses resulting
from unauthorized or inadequate performing of production or service
processes,
D. Warranty does not cover:
•mechanical defects caused by product exploitation other than
intended, defects of thermal and chemical origin, defects caused by
lightning, overvoltage in the power network or other random event,
•Inappropriate cleaning.
E. Loss of warranty takes place if:
•a repair is carried out outside RADWAG authorized service point,
•service claims intrusion into mechanical or electronic construction by
unauthorized people,
•the balance does not bear company protective stickers.
F. Warranty conditions outline the warranty period for rechargeable
batteries attached to the balance for 12 months.
G. For detailed warranty conditions go to the warranty certificate.
H. Contact with the central authorized service: (0-48) 384 88 00 ext. 106
and 107.
4. BALANCE DESIGN
4.1. Dimensions

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Dimensions of WTC 600 precision balance
4.1.1. Connection Cables - Diagrams
WTC 600 connectors
1- 12VDC power outlet
2- RS232 connector
4.1.2. Connectors description
Pin2 – RxD
Pin3 – TxD
Pin5 – GND
RS 232 DB9/M
connector (male)

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5.UNPACKING AND INSTALLATION
A. Take the device out of the
packaging,
B. Place the balance on a flat and even
surface. Keep it far away from any
sources of heat,
C. Install the weighing pan in
accordance with the figure below:
6.START-UP
6.1. Levelling
Prior first use level the balance. To level the platform
use the levelling feet and the level indicator. Keep
turning the feet until the air bubble takes central
position.
6.2. Powering the Device
Caution:
Balance can be connected to the mains only with a power adapter that comes
standard with the particular model. Nominal power supply of the power adapter
(specified on the power adapter data plate) has to be compatible to the power
from the mains.
Plug the balance to the mains – connect the power adapter to the socket, next
connect its connector to port located at the back of the balance housing.
Turn the balance on or off using key.
Test of the display unit takes place right after connecting the balance to the
power, all the elements and pictograms are backlit for a short time. Next, the
name and the program number appear, the indication gets to ZERO (displayed
reading unit depends on the balance). If the indication is different than zero,
press key.

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6.3. Battery Status
An internal battery comes standard with the balance. pictogram, displayed
at the top of the display, signals battery status.
Pictogram operation Overview
No pictogram Battery full. Standard balance operation
Pictogram displayed
continuously
Battery status low (message <bat Lo> is displayed and the
balance turns off). Charge the battery immediately.
Pictogram blinks every 1s Battery charging. Balance connected to power supplier, the
battery is being charged.
Pictogram blinks every 0,5s Battery error. Battery damaged.
6.4. Battery Power
•Simultaneously press and keys .
•Message <bAtt> is displayed for 1s. Next, battery power given in [%] is
displayed for 2 s.
•Wait for the home screen to be displayed.
7.MAINTENANCE ACTIVITIES
Disassembly a weighing pan and other detachable components (the
components differ depending on a balance type – see: UNPACKING AND
INSTALLATION).
Caution:
Cleaning anti-draft chamber while still installed may cause damage of the
measuring system.
7.1. Cleaning ABS components
To clean dry surfaces and avoid smutching use clean non-colouring cloths
made of cellulose or cotton. You can use a solution of water and detergent
(soap, dishwashing detergent, glass cleaner). Gently rub the cleaned surface
and let it dry. Repeat cleaning process if needed.
In the case when contamination is hard to remove, e.g. adhesive, rubber, resin,
polyurethane foam residues etc., you can use a special cleaning agents based
on a mixture of aliphatic hydrocarbons that do not dissolve plastics. Before
using the cleanser for all surfaces we recommend carrying out tests. Do not
use products containing abrasive substances.

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7.2. Cleaning stainless steel components
Avoid using cleansers containing any corrosive chemicals, e.g. bleach
(containing chlorine). Do not use products containing abrasive substances.
Always remove the dirt using microfiber cloth to avoid damage of protective
coating.
In case of a daily maintenance:
1. Remove the dirt using cloth dipped in warm water.
2. For best results, add a little dishwashing detergent.
8.TEMPERATURE STABILIZATION
•For correct operation of the balance the temperature has to range +15°C ÷
+30°C;
•On switching on, the balance requires 30 minutes of temperature
stabilization time;
•During temperature stabilization displayed information may change;
•Adjustment has to be carried out after temperature stabilization;
•Any changes of temperature and humidity during operation can cause
indications errors. Errors can be corrected by carrying out user
adjustment.
9.KEYPAD
WTC 600 series keypad

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10. KEYS
Press to switch the balance on/off – keep pressing for about 1 s
Function key: press to select respective operation mode.
Press to send the weighing result to a printer or a computer.
Press to zero the balance
Press to tare the balance
Caution:
On pressing and )keys balance menu is displayed and keys'
functions change. For detailed overview of keys' functions go further down this
user manual.
11. PROGRAM
Main menu is divided into function groups. Function group is a group of
interrelated parameters.
Parameter No. Name Options Overview
P1. rEAd - Balance parameters
1.1. FIL 1, 2, 3 Filter
1.2. Auto YES, no Autozero
1.3. tare no, AtAr, tArF Tare
1.4. Fnnd YES, no Median Filter
P2. Prnt RS232 parameters settings
2.1. Pr_n StAb, noStAb, rEPL, CntA,
Cntb Printout type
2.2. S_Lo LO Threshold
2.3. bAud 2400, 4800, 9600, 19200,
38400 RS232 baud rate
2.4. S_rS
7d2SnP, 7d1SEP, 7d1SoP,
8d1SnP, 8d2SnP, 8d1SEP,
8d1SoP
Serial communication
parameters
P3. Unit Units
g, kg, N, ct, lb Basic weighing unit selection
P4. Func Working modes

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4.1. FFun
ALL, Funi, PcS, HiLo, AtAr,
PrcA, Prcb, toP, Add,
AnLS, tArE
Selection of modes quantity
available for the user
4.2. Funi YES, no <Funi> mode accessibility
4.3. PCS YES, no <PcS> mode accessibility
4.4. HiLo YES, no < HiLo> mode accessibility
4.5. PrcA YES, no < PrcA> mode accessibility
4.6. Prcb YES, no < Prcb> mode accessibility
4.7. AtAr YES, no < AtAr> mode accessibility
4.8. toP YES, no < toP > mode accessibility
4.9. Add YES, no < Add> mode accessibility
4.A. AnLS YES, no <AnLS> mode accessibility
4.b. tArE YES, no <tArE> mode accessibility
P5. Misc Miscellaneous
5.1. bL no, YES, Auto Backlight for power supply from
mains
5.2. bLbA no, 10, 20, 30, 40, 50, 60,
70, 80, 90, 100
Backlight for power supply from
battery
5.3. bEEP YES, no Key sound
5.4. t1 no, YES, Auto Time-defined finish mode
5.5. CHr6 YES, no Battery charging function
P6. CAL Adjustment
6.1. St_u - Start mass determination
6.2. uCAL - Adjustment process
12. OPERATING BALANCE MENU
Use keypad to navigate in menu.
12.1. Keypad
+ Press to enter 'Main Menu'
+
Press to enter tare value manually
Press to edit parameter value and to change it by 1 digit up
Press to move the menu up
+ Press to check battery status
+
Press to switch between gross / net value
Press to swap between particular menu/submenu parameter
Press to change current parameter value

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Press to enter particular submenu
Press to select parameter that is to be modified
Press to confirm introduced modifications
Press to leave, parameter remains unmodified
Press to move one menu level up
12.2. Return to the Weighing Mode
Introduced modifications are permanently recorded into balance memory upon
returning to the weighing operation after carrying out saving procedure.
Press key repeatedly, keep pressing until message <SAuE?> is
displayed. Upon noticing the query press: - to confirm introduced
modifications, or - to resign from introducing the modifications. Now the
balance proceeds to weighing.
13. WEIGHING
Load the weighing pan. You can read weighing result when ,pictogram is
displayed. To assure long-term operation and correct mass measurements
follow the rules presented below:
•Load the weighing pan steadily avoiding shocks:
•Place weighed loads centrally on the weighing pan (eccentricity errors are
specified by PN-EN 45501 standard, points 3.5 and 3.6.2.):

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•Do not load the pan with concentrated force:
•Avoid side loading, in particular side shocks:
13.1. Taring
To determine net weight, put the packaging on the weighing pan. On
stabilizing, press key (indication changes to zero, Net pictogram is
displayed in the left upper corner):
On loading the weighing pan net weight is displayed. You can tare repeatedly
within the whole measuring range. While using tare function remember not to
exceed the maximum measuring range of the balance. On unloading the
weighing pan, the sum of tared masses with minus sing is displayed.
Caution:
Taring cannot be performed when the displayed value is negative or equal
zero. In such case message <Err3> is displayed and short signal is emitted.

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13.2. Manual Tare Entering
•Simultaneously press and keys.
•Using and keys set tare value,
•Press key,
•Balance returns to weighing mode. Tare value with '-' sign is displayed.
•Tare can be entered at any moment during the weighing process.
Caution:
Tare cannot be entered manually when tare value is already implemented to
balance's memory. In such case message <Err3> is displayed and a short
signal is emitted.
13.3. Zeroing
To zero mass indication press .key. Zero value and following pictograms
and are displayed.
Zeroing enables determining new precise zero point. Zeroing is possible only
when the indication is stable.
Caution:
Indication can be zeroed only within ±2% range of maximum capacity. If the
zeroed value is greater than ±2% of the maximum capacity, message <Err2> is
displayed and short signal is emitted.

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13.4. Weighing for Dual Range Balances
Switching from weighing with the accuracy of the I weighing range to weighing
with the accuracy of the II weighing range takes place automatically on
exceeding Max of I weighing range. On switching to weighing with the
accuracy of the II weighing range, symbol is displayed on the left. On
unloading the weighing pan indication zeroes. Weighing is carried out with II
range accuracy until the indication is zeroed.
Switching from weighing with the accuracy of the II weighing range to
weighing with the accuracy of the I weighing range takes place automatically
on unloading the weighing pan and returning to AUTOZERO –(symbol
is displayed). II weighing range pictogram is blanked and the balance switches
back to the I weighing range.
13.5. Basic Weighing Unit Selection
You can set the start unit.
Procedure:
•Enter <P3.Unit> submenu.
•Press key to view available units:

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Options:
A. When [kg] is the main unit, then you can select the following units:[kg,
lb, N]; [lb] unavailable for verified balances,
B. When [g] is the main unit, then you can select the following units:[g, ct,
lb]; [lb] unavailable for verified balances,
•On selecting basic unit, press key to confirm. Return to home
screen:
•Return to the weighing mode saving introduced modifications.
Caution:
The balance turns on with basic start unit selected.
13.6. Temporary Weighing Unit Selection
Function enables selecting mass indication unit. Temporary unit remains active
until it is changed or the balance is turned off.
Procedure:
•Press key, next:
•On confirmation the balance proceeds to weighing with selected unit.

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Options:
A. When [kg] is the main unit, then you can select the following units:[kg, lb,
N]; [lb] unavailable for verified balances,
B. When [g] is the main unit, then you can select the following units:[g, ct, lb];
[lb] unavailable for verified balances,
14. MAIN PARAMETERS
You can adjust the balance to ambient conditions (filter level) or to your own
needs (autozero, tare value). The parameters are to be found in <P1.rEAd>
submenu.
14.1. Filter Level
Procedure:
•Enter <P1.rEAd> submenu.
1 - 4 - filter setting in accordance with the ambient conditions
•Return to the weighing mode saving introduced modifications.
Caution:
The higher filter level, the longer the indication takes to stabilise.

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14.2. Autozero
The software features an autozero function (Auto) ensuring precise mass
indication. This function automatically controls and corrects zero indication.
There are, however, some cases when this function can be a disturbing factor
for the measuring process; e.g. very slow placing of a load on the weighing pan
(load adding). In such case, it is recommended to disable the function.
Procedure:
•Enter <P1.rEAd> submenu.
AUTO no - autozero disabled
AUTO YES - autozero enabled
•Return to the weighing mode saving introduced modifications.
14.3. Tare
Function enables setting appropriate parameters related with taring.

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Procedure:
•Enter <P1.rEAd> submenu.
tare AtAr - automatic tare - saved after the power supply is
disconnected;
tare
no
-
basic tare mode (taring using key);
tare tArF - tare storage - last tare value is stored in balance's
memory. Tare value is automatically displayed on
restarting the balance.
•Return to the weighing mode saving introduced modifications.
14.4. Median Filter
Median filter enables eliminating short impulse interferences (e.g. mechanical
shocks).
Procedure:
•Enter <P1.rEAd> submenu.