Sartorius WZA X Series User manual

Installation Instructions
Sartorius
Explosion-protected Weigh Cells
Models WZA...-X
98648-013-18
98648-013-18

Contents Warnings and Safety Precautions
System Description ............. 2
Warnings and Safety Precautions . . 2
General View of the Equipment . . . . 4
Installation ................... 5
Storage and Shipping Conditions . . . 5
Incoming Inspection . . . . . . . . . . . . . 5
Equipment Supplied . . . . . . . . . . . . . 5
Ambient Conditions . . . . . . . . . . . . . 5
Components Attached
to the Load Receptor . . . . . . . . . . . . 5
Connecting an Optional Display
and Control Unit . . . . . . . . . . . . . . . 5
Conditions for Installation . . . . . . . . 6
Connecting an Equipotential
Bonding Conductor . . . . . . . . . . . . . 7
Connecting the Weigh Cell
to AC Power ................... 7
Leveling the Load Receptor . . . . . . . . 8
Leveling the Weigh Cell . . . . . . . . . . 9
Operation
Notes on Analytical Weighing . . . . . . 10
Below-Cell Weighing . . . . . . . . . . . . 11
Factory Settings . . . . . . . . . . . . . . . . 12
Parameter Settings (Overview) . . . . . . 12
RS-232 Interface Port ...........15
Pin Assignment Chart . . . . . . . . . . . . 18
Troubleshooting Guide ...........19
Overview .....................20
Specifications . . . . . . . . . . . . . . . . . . 20
Dimensions (Scale Drawings) . . . . . . . 21
Accessories (Options) . . . . . . . . . . . . 24
EC Declaration of Conformity . . . . . . 25
EC Type-Examination
Certificate (KEMA) . . . . . . . . . . . . . . 27
Certificates of Compliance . . . . . . . . 45
Control Drawing . . . . . . . . . . . . . . . . 49
Verification of the Intrinsic Safety . . . 52
Return to Repair . . . . . . . . . . . . . . . . 59
System Description
The product is comprised of two
components:
– Compact weigh cell that can be affixed
to a smooth, even surface
– Electronics module
– These compact weigh cells can be used
to determine weights within restricted
space.
The weigh cells have been developed for
– Installation in measuring devices and
production machinery
– High-precision weighing within
limited space
– Precise weight determination on active
production lines
Safety Precautions
– The weigh cell meets the require-
ments for Group II, Category 2 equip-
ment in accordance with EC Directive
94/9/EC and bears the designation
h II 2 GD EEx ib IIB/IIC T4 T115°C
or 135°C in accordance with KEMA
EC type-examination certificate
05ATEX1147X.
Furthermore, the weigh cell meets
the EC Directives for electromagnetic
compatibility (see the Declaration of
Conformity). Improper use or han-
dling, however, can result in damage
and/or injury.
§ To prevent damage to the equipment,
read these installation instructions
thoroughly before using your weigh
cell.
§ These installation instructions
describe only the technological speci-
fications of the weigh cell and the
conditions that must be observed
during installation.
– The weigh cell can be operated
indoors or outdoors. This weigh
cell must not be used in the medical
industry (as a medicinal product).
– The weigh cell may be used in Zone
1, 2, 21 or 22 hazardous areas or
Class 1, Division 1 or 2 hazardous
locations (gas and dust explosion
hazards). Please make sure the cur-
rently valid regulations and guide-
lines for installing equipment in
the hazardous areas/locations listed
above (e.g., EN60079-14, EN50281-
1-2) are strictly observed. Whether
the equipment can be used in a given
area containing potentially explosive
agents must be checked on a case-
by-case basis.
! Any incoming inspection, alterations
to the equipment or installation
work that does not conform to the
instructions in this manual will result
in forfeiture of all claims under the
manufacturer’s warranty.
! If you use electrical equipment in
installations and under ambient
conditions requiring higher safety
standards, you must comply with the
provisions as specified in the applica-
ble regulations for installation in your
country.
! Have the equipment inspected at
appropriate intervals for correct func-
tioning and safety by a trained tech-
nician.
! Always make sure the weigh cell is
disconnected from AC power before
performing any installation, clean-
ing, maintenance or repair work.
If the equipment housing is opened
by anyone other than persons
authorized by Sartorius, all claims
under the manufacturer’s warranty
are forfeited. Use only original
Sartorius spare parts.
! Disconnecting equipotential bonding
conductors is not permitted.
! If you see any indication that the
weigh cell cannot be operated safely
(for example, due to damage), turn
off the unit and lock it in a secure
place so that it cannot be used for
the time being. Observe the relevant
safety precautions and inform per-
sonnel as required.
– The casing on all connecting cables,
as well as the casing on wires inside
the equipment housing, is made of
PVC. Chemicals that corrode these
materials must be kept away from
these cables.
– Make sure the weighing instrument
is not exposed to substances that
release chlorine ions at the place
of use. If such exposure cannot be
ruled out, the operator is responsi-
ble for establishing and observing
appropriate safety precautions, to
be checked at regular intervals for
continued effectiveness.
! The weigh cell may be used and
operated by qualified personnel only.
The permissible use of the equip-
ment is defined by the equipment
specifications and the relevant safety
regulations. Operating the weigh cell
beyond the specifications listed in
the type-approval certificate is
not permitted, and is considered use
of the equipment for other than its
intended purpose. All restrictions
listed in the type-examination cer-
tificate must be strictly observed.
§ Once the weigh cell has been
installed, it must be checked to
ensure:
– Observance of the guidelines and
standards for using electrical equip-
ment
– Electromagnetic compatibility of the
entire device
– Compliance with mandatory safety
regulations.
2

Installation Requirements
– Installation in a Zone 1, 2, 21 or 22
hazardous area or Class 1, Division
1 or 2 hazardous location must be
performed by a trained technician
who is familiar with the assembly
and operation of the equipment,
as well as with the procedure for
putting the system into operation.
Furthermore, the trained technician
must have the required qualifications
and must be familiar with the rel-
evant guidelines and regulations.
If you need assistance, contact the
system installer, your Sartorius dealer
or the Sartorius Service Center.
Any installation work that does not
conform to the instructions in this
manual will result in forfeiture of
all claims under the manufacturer’s
warranty. Be sure to observe all
restrictions listed in the type-
examination certificate. Operating
the weigh cell beyond the limits
imposed by these restrictions is not
permitted and is considered use of
the equipment for other than its
intended purpose.
! Always make sure the weigh cell is
disconnected from AC power before
performing any installation, clean-
ing, maintenance or repair work.
! The electronics module and the
optional YAC02FC-X display and
control unit may not be opened.
The weigh cell may be opened only
by authorized service technicians
who have been trained by Sartorius
and who follow Sartorius’ standard
operating procedures for mainte-
nance and repair work.
! Avoid interchanging weigh cells and
electronics modules.
Connect the parts that fit together,
ensuring that the serial numbers
match.
! Do not expose the weigh cell unnec-
essarily to extreme temperatures,
aggressive chemical vapors, mois-
ture, temperature fluctuations or
vibrations. The permissible operating
temperature range during operation
is +5°C to +40°C.
! Be sure to unplug the system from
AC power before connecting or dis-
connecting any cables.
! If you are using the optional
YAC02FC-X display and control unit,
it must be installed a way that limits
the risk of mechanical damage.
! Never open the display and control
unit.
$ If there is visible damage to the
components: disconnect the equip-
ment from AC power and replace the
weigh cell along with the electronics
module.
! If you use cables purchased from
another manufacturer in the non-
hazardous area/location, check the
pin assignments. Before connecting
the cable to Sartorius equipment,
check the pin assignments in the
cable against those specified by
Sartorius and disconnect any wires
that are assigned differently. The
operator shall be solely responsible
for any damage or injuries that occur
when using cables not
supplied by Sartorius. On request,
Sartorius will provide information
on the minimum operating speci-
fications (in accordance with the
Standards for defined immunity to
interference).
! When using the weigh cell in haz-
ardous areas/locations, make sure
there is no current or voltage in the
equipment before connecting or dis-
connecting current-carrying cables
to or from the weigh cell. Disconnect
the weigh cell from AC power before
connecting or disconnecting cables.
– Avoid exposing the weigh cell to
static electricity.
! All components of the system must
be grounded, including any draft
shields used. Be sure to connect an
equipotential bonding conductor.
$ If any problems arise with the weigh
cell that require service, please
contact your local Sartorius dealer.
Hotline
§ If you have technical questions
about the construction, specifications
or installation of this weigh cell, just
call or fax your local Sartorius office.
For the address, please visit our
Internet website at: www.sartorius.
com
Explanation of Symbols
The following symbols are used in
these instructions:
§ indicates required steps
$ indicates steps required only under
certain conditions
> describes what happens after you
have performed a particular step
– indicates an item in a list
! indicates a hazard
Make sure you observe the warning
and safety information in its entirety
during installation and operation,
as well as while performing mainte-
nance and repair work on the
equipment. It is important that
all personnel using the equipment
understand this information and
have access to it at all times.
3

4
Pos. Designation
1 Electronics module
2 Identification label on the electronics module
3 Socket for connecting an optional display and control unit
4 Interface port
5 DC jack
Pos. Designation
6 Load receptor
7 Weigh cell
8 Identification label on the weigh cell
9 Level indicator
10 Threaded hole (M6) for mounting the weigh cell
General View of the Equipment
2
3
5
6
1
4
7
9
10
8

5
Installation
The weigh cells are available in various
versions. If you have ordered special
options, the weigh cells are equipped
with the specified features at the factory.
Storage and Shipping Conditions
– Once the equipment has been removed
from the packaging, it may lose accu-
racy if subjected to strong vibration.
Excessively strong vibration may com-
promise the safety of the equipment.
– Do not expose the equipment unneces-
sarily to extreme temperatures, mois-
ture, shocks or vibration.
$ It is a good idea to save the box and all
parts of the packaging until you have
successfully installed your equipment.
Only the original packaging provides
the best protection for shipment.
$ Before packing your equipment, unplug
all connected cables to prevent damage.
$ Do not expose the equipment to
gravitational acceleration in excess of
0 300 m/s2 (unless additional equip-
ment is installed on the load receptor
that enables it to withstand this force).
Incoming Inspection
The customer shall inspect the product
and packaging immediately upon deliv-
ery for proper functioning, complete-
ness, and absence of defects. This is to
be performed in an incoming inspection
within 10 days of delivery of the prod-
uct. The incoming inspection must take
place before the equipment is installed.
Any obvious defects, errors, or incorrect
delivery must be reported in writing.
Defects detected at a later date must
be reported in writing immediately
upon detection.
Be sure to perform the following as part
of the incoming inspection:
– We recommend performing a repeat-
ability test using an auxiliary draft
shield to make sure the weigh cells were
not damaged in transport. You can use
the YAD01IS software or the optional
YAC02FC-X display and control unit
as an aid for this test.
Equipment Supplied
– Weigh cell
– Electronics module
– Installation instructions (this document)
– Special accessories as listed on the bill
of delivery, if ordered, or in accordance
with specific arrangement.
Ambient Conditions
The equipment is designed to provide
reliable results under normal ambient
conditions. If you have any questions or
difficulties when developing your weigh-
ing system, please contact the specialists
at Sartorius. When designing and setting
up your weighing system, please observe
the following so that you will be able to
work with added speed and accuracy:
– Avoid exposing the equipment to the
effects of extremely high temperatures;
for example, caused by other electronic
components, heaters or direct sunlight.
– Protect the equipment from drafts that
come from open windows or doors.
– Avoid exposing the equipment to exces-
sive vibrations during weighing; for
example, caused by motors or valves.
– Protect the equipment from aggressive
chemical vapors.
Switch the system to the standby mode
when not in use.
Conditioning the Equipment:
Moisture in the air can condense on the
surface of a cold weighing instrument
or other device whenever it is moved
to a substantially warmer place. If you
transfer the equipment to a warmer
area, make sure to condition it for
about 2 hours at room temperature,
leaving it unplugged from AC power.
Components Attached to the Load
Receptor
– Components that are attached to the
load receptor can adversely affect the
way the weigh cell functions. The user
is responsible for how the series is used
and the specifications achieved for the
entire system. Your specifications may
differ from those listed in the section
entitled “Specifications.”
Connecting an Optional YAC02FC-X
Display and Control Unit
! The display and control unit can only
be connected if specified directly at the
time the order is placed.
! Protect the YAC02FC-X display and
control unit from mechanical damage.
If you discover that the equipment has
been damaged, disconnect it from AC
power and remove it from service.

6
Conditions for Installation
Before putting the equipment into operation, it is important to
make sure that the power cord on the associated power supply is
correctly connected to the power outlet (mains supply). All equip-
ment must be connected to the equipotential bonding conductor
by connecting the grounding cable (not included in delivery) to the
grounding terminals provided for this purpose on each device.
The dimensions of the grounding cable are specified in national
regulations for electrical installations. Installation must be per-
formed by a trained technician in accordance with national regula-
tions and acknowledged technological standards.
Use only cabling and extensions approved by Sartorius, as these are
made in accordance with the restrictions on permissible cable lengths
imposed by both the capacitance and inductivity values and the
requirements for electromagnetic compatibility (see the EC Type-
Examination Certificate).
Before putting the weighing system into operation for the first
time, make sure there is no hazard of explosion present at the place
of installation. If there is any indication that the equipment does
not function properly (e.g., display remains blank or is not backlit)
due to damage during transport:
– disconnect the equipment from power and
– notify your nearest Sartorius Service Center.
The weigh cell specifications for Ui, Li, Pi, Ta, temperature class,
Ci, and Li are listed in the EC type-examination certificate.
This certificate also specifies the display and control unit models
that can be used with these weigh cells.
The explosion-protected weighing system must be installed in
accordance with acknowledged rules of engineering. These include
national and international laws and regulations (such as VbF,
EX-RL, DIN EN 60079-14, DIN EN 5281-1-2, DIN VDE 0166, DIN
VDE 0100, DIN VDE 0101, and DIN VDE 0800).
In particular, the conditions described under Item 17 of the KEMA
EC type-examination certificate, “Special Conditions for Safe Use,”
must be observed. Furthermore, national regulations for accident
prevention and environmental protection must be observed at all
times.
Before you operate your weigh cell in a hazardous area/location,
it must be inspected either by a certified electrician or under the
guidance and supervision of a certified electrician to make sure that
the weigh cell complies with the applicable regulations. Determine
whether your weigh cell must be reported to the technical inspec-
tion authorities (such as the trade board) in your country. The system
must also be inspected during operation. The system should be
inspected at intervals which allow for early detection of the faults
that occur as a result of normal wear and tear, so that they can
be corrected before damage is caused. In any case, inspection must
be performed at least every 3 years. Other conditions and standards
that regulate the installation and operation of the equipment and
are applicable in your country must be met as well. When perform-
ing inspections, generally acknowledged rules of engineering rel-
evant to these conditions must also be applied. If the unit housing
is opened by anyone other than persons authorized by Sartorius,
or if the equipment is installed or operated incorrectly, this will
result in forfeiture of the approval for use in the stated hazardous
area(s)/location(s) and of all claims under the manufacturer’s
warranty.

§ Connecting an Equipotential Bonding Conductor (Grounding)
If the weigh cell is in a hazardous area/location, it must be grounded (i.e., an equipo-
tential bonding conductor must be connected). This connection should be made by
a trained technician. The weigh cell is equipped with a connector for the grounding
conductor. The position is marked by the symbol shown here, indicating the ground-
ing connection.
Use a stainless steel screw (M6 thread) to connect the grounding conductor.
We recommend using a tooth lock washer to prevent the screw from coming loose.
The wire used for the grounding conductor should have a cross-sectional diameter of
at least 4 mm2, with a suitable ring lug attached.
The grounding cable must be installed in such a way that it is not under mechani-
cal stress and so the screw will not become loose. Connect all equipment, including
peripheral devices, to the equipotential bonding conductor.
Connecting the Weigh Cell to AC Power
§ Before putting the weigh cell into operation, make sure that the power cable is
correctly connected to the electrical outlet; it is especially important to make sure
the grounding cable is attached to the housing of the power supply. All devices used
must be connected to the equipotential bonding conductor via the retainers provided
on each device. Installation must be carried out by a certified electrician according to
the valid standards of technology.
! Before putting the equipment into operation for the first time, make sure that the
area of installation is not hazardous. If the equipment shows any signs of malfunction
as a result of damage during shipment (display remains blank, display not backlit even
with a weight readout, weight value not repeatable, readout does not stabilize, etc.),
disconnect the equipment from AC power and contact a Sartorius service technician.
§ YPS02-X..: flameproof power supply:
– Install both cables to that they are stationary and mechanically protected
– Flexible installation of cables with threaded fasteners can be carried out on request.
§ Check the voltage rating and the plug design.
If they do not match the rating or standard you use, contact your Sartorius office or
dealer.
Use only original Sartorius power supplies:
– YPS02-Z.. (for use outside hazardous areas/locations)
– YPS02-X.. (for use within hazardous areas/locations)
$ To operate the weigh cell in a hazardous area or location, please comply with the fol-
lowing:
– Currently valid standards and regulations for installation of explosion-protected
equipment in such areas
– Installations in Zone 1 must be carried out and checked by a certified electrician.
§ Plug the female connector of the blue intrinsically safe power supply cable into the
socket on the weigh cell. Secure this connection by tightening the knurled collar.
! Be sure to connect the power supply to the electronics module before plugging the
equipment in to AC power.
! Install the power cable so that it is protected from damage.
$ The intrinsically safe connector for the power cable (primary side) of YPS02-X.. power
supplies is not part of the standard equipment supplied (open cable ends).
Connecting Electronic Peripheral Devices
§ Make absolutely sure to unplug the weigh cell from AC power before you connect or
disconnect a peripheral device (display and control unit or PC) to or from the interface
port.
7

Warmup Time
$ The amount of warmup time required depends in part on the system in which the weigh
cell is installed. To deliver exact results, the weigh cell must warm up for at least 30 min-
utes after it is connected to power for the first time. Only after this time will the device
have reached the required operating temperature.
Leveling the Load Receptor and User-Specific Transducer
§ Remove the (S1) screw.
§ Use the (S2) screws to radially position and level the load receptor (minor height adjust-
ment also possible).
§ Attach the (S1) screw to affix the load receptor and tighten it as indicated in the table
below listing the torque values.
§ Attach any user-specific transducer to the threaded fastener (S3) on the load receptor and
tighten it as indicated in the table below: Maximum load on load receptor.
! The user-specific transducer must be rigid and securely connected to the load receptor.
Maximum load on load receptor:
Model Meck S1 S2 S3
WZA64-X 2 Nm 1 Nm 2 Nm
WZA623-X 2.5 Nm 1 Nm 1 Nm 2 Nm
WZA6202-X 6 Nm 4 Nm 2 Nm 4 Nm
WZA12001-X 6 Nm 4 Nm 2 Nm 4 Nm
If the load is not centered on the load receptor, the corner load moment Meck may not be
exceeded, since this could lead to a defect in the weigh cell.
The force “G” is comprised of the weight of the sample and the non-centric load on the
weigh cell.
The load receptors should be constructed so that they are stiff and cannot be bent or
twisted.
Example: What is the maximum permissible length of the cantilever
(on WZA623-X in this instance)?
It is assumed that the load is connected to a cantilever that has a uniform width.
The cantilever utilizes the necessary preload of 600 grams on the WZA623-X.
Meck Arm ~ 1 R + GArm GArm = 9.81 m/s2 + 0.6 kg
= 5.9 N
Meck Last = R + GLast GLast = 9.81 m/s2 + 0.62 kg
= 6.1 N
Meck = Meck Arm + Meck Last
= R (1 + GArm + GLast)
Meck
R = ———————————
(1 GArm + GLast)
R = 2.5 Nm / 12 N = 0.2 m
R = 0.2 m
8
G
R
G = Load
R = Distance from the center of the pan
Meck = G . R
The maximum length that the cantilever
can be without destroying the system is
200mm. As a result of handling, other
moments can occur, which must be taken
into consideration. In general, we recom-
mended testing first because there can
be undesired repercussions. Drafts can
influence results as well.

Leveling the Weigh Cell in a Portable Weighing System (Leveling Feet Optional)
Purpose:
– To compensate for uneven areas at the place of installation
– To ensure that the weigh cell is placed in a perfectly horizontal position for consistently
reproducible weighing results
– Always level the weigh cell again any time after it has been moved to a different location.
§ Adjust the leveling feet until the air bubble is centered within the circle on the level
indicator.
Permanently Installed Weigh Cells
– Adjust the weigh cell after it has been installed in the system in its permanent location
(see next page).
The weigh cell must be leveled again any time the location or position of the weighing
system is changed.
– For optimum operation, install the weigh cell in a horizontal position.
1) Bottom plate of the weighing cell
2) Fastening frame of the system
§ Fastening with M6 screws:
Connection to the threaded fasteners on the weigh cell (1): torque: 2.5 Nm
§ Fastening with M4 screws:
Connection to the threaded fasteners of a user-specific frame (2).
Device-Specific Information: Coding of the Serial Number
The year that the device was manufactured is coded in the serial number.
The format is as follows:
YMM x x x x x
Y Year
1 2000–2006 6 2035–2041
2 2007–2013 7 2042–2048
3 2014–2020 8 2049–2055
4 2021–2027 9 2056–2062
5 2028–2034
Each number in the Y column represents a group of seven years during which the device
was manufactured. Within each group of years, the months of the year (M M) advance
chronologically from 13 upwards.
2000 13-24
2001 25-36
…
Example:
113xxxxx (January 2000)
xxxxx is a consecutive number that is counted upward after being reset each month.
9
1
1
2
2

Operation
Notes on Analytical
Weighing with Weigh Cells
Handling of Samples and Containers
Samples should be acclimatized to the
temperature of the weigh cell to avoid
negative effects on results, such as
measurement errors and fluctuations
caused by air buoyancy resulting from
convection currents across the surface
of the sample.
These negative effects increase as the
volume and/or surface area of the sam-
ple increases. For this reason, the size of
the container should be appropriate for
the sample.
Samples and containers should not be
touched by the operator’s hands, as the
hygroscopic effect of fingerprints and
the effect of the hand’s temperature
can influence the measurement results.
Samples must be applied very carefully,
whether manually (using forceps) or
automatically (by a robot or filling
system).
When designing a draft shield device,
steps must be taken to keep the
increase in temperature within the
weighing chamber to a minimum
(e.g., using a bypass).
Weighing Electrostatically Charged
Samples or Containers
If a sample or container is electrostati-
cally charged, significant errors may
result during weighing. Materials with
low conductivity, such as glass, plastic
or filters, are particularly susceptible to
static electricity (resulting, e.g., from
friction) because the weighing pan can
discharge the static electricity only very
slowly.
The result is a force action between
the charge on the sample and the per-
manently installed parts of the weigh
cell. This causes the readout to fluctu-
ate constantly.
Ionization can be applied to make the
air around the sample conductive. This
allows the charge to be compensated
through the air, or discharged through
the ground (grounded).
The area around the weigh cell can
also contain charges that negatively
affect the accuracy of weighing results.
Appropriate steps taken in the design
of a draft shield device can counteract
such effects. In the process, be sure to
install devices that are suitable for use
in the particular hazardous zones.
10
Weighing Magnetic or Magnetizable
Samples
For technical reasons, the use of mag-
netizable materials in the manufacture
of weigh cells is unavoidable, primarily
because the operating principle of high-
resolution weigh cells is based on
compensation of the load through
magnetic forces.
When weighing magnetic or magnetiz-
able samples or containers, interaction
between the sample or container and
certain parts inside the weigh cell may
have a distorting effect on the weighing
results.
To keep such effects to a minimum,
we recommend increasing the distance
between the sample/container and the
weighing system using a non-magnetic
material. The force is reduced quadrati-
cally with the increase in distance.
Magnetizable or magnetized samples
and the weigh cell itself interact with
magnetic fields and magnetizable or
magnetized parts in the area surround-
ing the weighing system. The system
can be shielded from external magnetic
fields to some extent using (soft mag-
netic) plates.
Calibration/Adjustment
Calibration/adjustment can be per-
formed as follows:
– Using control commands sent by the
YAD01IS configuration software from
Sartorius, installed on a computer (see
page 16 for the commands)
or
$ Using the optional YAC02FC-X display
and control unit

Below-Cell Weighing
A port for a below-cell weighing hanger is located on the bottom of the weigh cell.
§ Remove the cover plate.
$ Threaded fastener for hook: M3
$ Overload protection
– Standard feature on the following models: WZA64-X and WZA623-X
Models WZA6202-X and WZA12001-X:
! No overload protection provided
§ Carefully install the special hook: maximum torque: 0.75 Nm
$ If necessary, install a shield for protection against drafts.
! Protection rating: only protection rating IP22 is provided when the cover plate for the
below-cell weighing port has been removed.
11

Factory Settings (Setup)
Purpose
The weigh cell is configured at the fac-
tory. The factory settings can be adapt-
ed to individual requirements by editing
the “Setup” menu.
Features
The parameters are combined in the
following groups (highest menu level):
1 Weigh cell functions (“Weighing”)
5 Interface
6+7 Print in weighing mode
8 Extra functions
9 Restore factory settings
Factory Settings for Menu Parameters
The factory-set configurations are
identified by an “o” in the list below.
Customer-specific settings can be
configured upon request.
Preparation
$ Using the YAD01IS configuration
software from Sartorius, you can process
the operating menu parameters as
follows:
– read
– edit
– print
– save
$ Operation with the optional YAC02FC-X
display and control unit:
– The menu is extended by the addition
of application programs.
– The display and control unit has a
separate processor for configuring the
settings.
– The settings are effective only as long
as the display and control unit is
connected.
For more detailed information on
configuration of the weigh cell, please
contact Sartorius.
12
Parameter Settings (Overview)
o Factory setting
√ User-defined setting
Operating menu 1 Weighing 1 1 Adapt filter 1 1 1 Very stable conditions
1 1 2 o Stable conditions
1 1 3 Unstable conditions
1 1 4 Very unstable conditions
1 2 Application filter 1 2 1 o Final readout
1 2 2 Filling (manual)
1 2 3 Low filtering
(computer-aided filling)
1 2 4 W/o filtering (checkweigher operation)
1 3 Stability range 1 3 1 4 digit
The stability symbol 1 3 2 1 digit
remains displayed 1 3 3 1 digit
when the value is stable 1 3 4 o 2 digits
within this range 1 3 5 4 digits
1 3 6 8 digits
1 4 Stability 1 4 1 No delay
delay 1 4 2 o Short delay
1 4 3 Long delay
1 4 4 Extremely long delay
1 5 Tare function 1 5 1 Without stability
1 5 2 o After stability
1 6 Auto zero 1 6 1 o On
1 6 2 Off
1 7 through 1 15 see next page

13
Operating menu 1 Weighing 1 1 through 1 7 see previous page
1 7 Weight unit 1 1 7 1 Grams (display: o)
1 7 2 o Grams (display: g)
1 7 3 Kilograms
1 7 4 Carats
1 7 5 Pounds
1 7 6 Ounces
1 7 7 Troy ounces
1 7 8 Hong Kong taels
1 7 9 Singapore taels
1 7 10 Taiwanese taels
1 7 11 Grains
1 7 12 Pennyweights
1 7 13 Milligrams
1 7 14 Parts per pound
1 7 15 Chinese taels
1 7 16 Mommes
1 7 17 Austrian carats
1 7 18 Tola
1 7 19 Baht
1 7 20 Mesghal
1 8 Display/output 1 8 1 o All digits
accuracy 1 8 2 Reduced for load change
1 8 3 Index +1
1 8 4 Index +2
1 8 5 Reduced by 1 digit
1 9 Calibration/adjustment, 1 9 1 o External calibration/adjustment with
linearization factory-set weight value
and preload 1 9 2 External calibration/adjustment with
known weights
1 9 3 External calibration/adjustment with
user-defined weights
1 9 6 External linearization with
factory-set weight value
1 9 7 External linearization with
user-def. weights
1 9 8 Store preload
1 9 9 Clear preload
1 9 10 Calibration/adjustment/linearization blocked
1 10 Calibration/ 1 10 1 o Calibrate, then auto adjust
adjustment sequence 1 10 2 Calibrate, then manual adjust
1 11 Zero-setting range 1 11 1 1%/max. cap.
1 11 2 o 2%/max. cap.
Extended zero-setting range
available on request
1 12 Initial zero 1 12 1 o 3 to 5 %/max. cap. (depending on model)
setting range 1 12 2 2%/max. cap.
1 12 3 5%/max. cap.
1 12 4 10%/max. cap.
1 13 Tare/zero at power-on 1 13 1 o On
1 13 2 Off
1 13 3 Only zero at power on
1 14 Display 1 14 1 o Normal output rate
update 1 14 2 Accelerated output rate

14
Operating 5 Interface 5 1 Baud rate 5 1 1 150 baud
menu 5 1 2 300 baud
5 1 3 600 baud
5 1 4 o 1,200 baud
5 1 5 2,400 baud
5 1 6 4,800 baud
5 1 7 9,600 baud
5 1 8 19,200 baud
5 2 Parity 5 2 1 Mark
5 2 2 Space
5 2 3 o Odd
5 2 4 Even
5 3 Number of stop bits 5 3 1 o 1 stop bit
5 3 2 2 stop bits
5 4 Handshake mode 5 4 1 Software
5 4 2 Hardware, 2 characters after CTS
5 4 3 o Hardware, 1 character after CTS
5 5 Communication 5 5 1 o SBI mode (ASCII)
mode 5 5 2 XBPI mode (binary)1)
6 Print 6 1 Manual/auto print 6 1 1 Manual without stability
6 1 2 o Manual after stability
6 1 3 Manual at stability
6 1 4 Automatic without stability
6 1 5 Automatic at stability
6 2 Stop automatic 6 2 1 Manual with function/print key
printing function 6 2 2 o Not stoppable
6 3 Time-dependent 6 3 1 o 1 display update
printing 6 3 2 2 display updates
6 3 3 5 display updates
6 3 4 10 display updates
6 3 5 20 display updates
6 3 6 50 display updates
6 3 7 100 display updates
7 Print 7 2 Line format 7 2 1 o 16 characters
of printout 7 2 2 22 characters2)
8 Extra 8 1 Menu 8 1 1 o Parameter settings alterable
functions 8 1 2 Parameters “read only”
8 4 External switch 8 4 1 o Print
function 8 4 2 Tare
8 4 3 Function key F1
8 4 4 “Toggle” function key
8 5 Turn on the 8 5 1 o On
display2) 8 5 2 Off
8 5 3 Automatic shut-off after 4 min. not in use
8 6 Power-on mode for 8 6 1 Off/on/standby2)
weighing platform 8 6 2 Off/on2)
8 6 4 o Auto on
9 Reset menu 9 1 Factory settings 9 1 1 Restore
9 1 2 o Do not restore
1) xBPI extended operating mode: additional commands for weigh cell < - > computer communication.
For more information, please contact Sartorius.
2) Function available only when using YAC02FC-X display and control unit or YAD01IS software.

Purpose
The weigh cells are equipped with
a data interface for connection to
a computer or other peripheral device.
Computer
You can connect a computer to alter,
start or monitor weigh cell functions.
Features
Type of interface: Serial interface
Operating mode: Full duplex
Standard: RS-232
Transmission rates: 150, 300, 600, 1200, 2400, 4800, 9600 and
19,200 baud
Parity: Space, odd, even
Character format: Start bit, 7-bit ASCII, parity 1 or 2 stop bits
Handshake mode: For 2-wire interface: software (XON/XOFF)
For 4-wire interface: hardware (CTS/DTR)
Operating mode: SBI (ASCII), XBPI*
* XBPI operating mode:
Always 9600 baud, 8 bits, odd parity, 1 stop bit.
There are a number of commands for use in communication between weigh cell and
computer.
For more information, please contact Sartorius.
Factory Settings for SBI Operating Mode:
Transmission rate: 1200 baud (Menu code 5 - 1 - 4)
Parity: Odd (Menu code 5 - 2 - 3)
Stop bits: 1 stop bit (Menu code 5 - 3 - 1)
Handshake: Hardware, 1 character
after CTS (Menu code 5 - 4 - 3)
Operating mode: SBI (Menu code 5 - 5 - 1)
Print manually/automatically Manually after stability (Menu code 6 - 1 - 2)
Stop automatic printing: Not possible (Menu code 6 - 2 - 2)
Time-dependent autoprint: After 1 display update (Menu code 6 - 3 - 1)
Preparation
§ See page 18 for the pin assignment chart and cabling diagram.
Data Output Format with 16 Characters
Display segments that are not activated are output as spaces. Values with no decimal
point are output without a decimal point.
The type of character that can be output depends on the character’s position:
Normal Operation
Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
+ A A A A A A A A A * E E E CR LF
or – . . . . . . . . . * * *
or * * * * * * * * * *
*: Space
A: Digit or letter
E: Unit symbol
CR: Carriage return
LF: Line feed
15
RS-232 Interface Port
Data Output Format
Data are output with 16 characters
per line.
Example:
+ 253 pcs

Special codes for operation with optional YAC02FC-X display and control unit:
Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
* * * * * * – – * * * * * * CR LF
or H H
or L L
or C
*: Space
– –: Final readout mode
H: Overload
H H: Overload in checkweighing
(Function available only when operating the YAC02FC-X display
and control unit)
L: Underload
L L: Underload in checkweighing
C: Calibration/adjustment
Error codes
Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
* * * E r r * # # # * * * * CR LF
*: Space
# # #: Error code number
Example: Output of the weight value + 1255.7 g
Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
+ * * * 1 2 5 5 . 7 * g * * CR LF
Position 1: Plus or minus sign or space
Position 2: Space
Position 3 - 10: Weight with a decimal point; leading zeros = space
Position 11: Space
Position 12 - 14: Unit symbol or space
Position 15: Carriage return
Position 16: Line feed
Data Input Format
The computer connected to the interface can be used to send commands controlling weigh
cell functions.
The commands sent are control commands and may have different formats. Control com-
mands consist of up to 26 characters. Each character must be transmitted according to the
settings configured in the operating menu for data transmission.
Formats for Control Commands
Format 1: Esc ! CR LF
Format 2: Esc ! # _ CR LF
Esc: Escape !: Command character
#: Digit
_: Underline (ASCII: 95)
CR: Carriage return (optional)
LF: Line feed (optional)
max: depends on command character, i.e., parameter input beyond the maximum
length is truncated, not discarded as in the case of keypad input
Format 1 (example: ESC K)
! Meaning
K Adapt filter (ambient conditions):
very stable conditions
L Adapt filter: stable conditions
M Adapt filter: unstable conditions
N Adapt filter: very unstable conditions
O Block all keys
Q Beep
P Print
R Release (unblock) keys
S Restart
T Tare and zero
Z Internal calibration/adjustment
(WZ...-CW models)
Format 2 (example: ESC f3_)
!# Meaning
f1_ Calibration or adjustment
in accordance with menu setting
Menu code 1 9 xx
f3_ Zero
f4_ Tare without zeroing
s1_ External calibration/adjustment
s3_ Clear function [CF]
x0_ Internal calibration WZ...-CW models
x1_ Print weigh cell type
x2_ Print serial no. of weigh cell
x3_ Software version in weigh cell
16

Synchronization
During data communication between
the weigh cell and a connected compu-
ter, messages consisting of ASCII char-
acters are transmitted via the interface.
For error-free data communication, the
parameters for baud rate,
parity, handshake mode and charac-
ter format must be the same for both
units. You can set these parameters in
the operating menu so that they match
those of the connected device. You can
also define parameters in the weigh cell
to make data output dependent on
various conditions. The conditions
that can be configured are listed in the
operating menu overview.
If you do not connect a peripheral
device to the interface port, this will not
generate an error message.
Handshake
The weigh cell interface (SBI) has
transmit and receive buffers. You can
define the handshake parameter in the
operating menu (menu code 5 4 x):
– Hardware handshake (CTS/DTR)
– Software handshake (XON, XOFF)
Hardware Handshake
Hardware handshake with a 4-wire
interface: 1 more character can be
transmitted after CTS (clear-to-send).
Software Handshake
The software handshake is controlled
via XON and XOFF. When a device is
switched on, XON must be transmitted
to enable any connected device to com-
municate.
When the software handshake is
configured in the operating menu,
the hardware handshake becomes active
after the software handshake.
The data transmission sequence is as
follows:
Weigh cell ––– byte –––> Computer
(trans- ––– byte –––> (receiving
mitting ––– byte –––> device)
device) ––– byte –––>
<––– XOFF –––
––– byte –––>
––– byte –––>
…
(Pause)
…
<––– XON –––
––– byte –––>
––– byte –––>
––– byte –––>
––– byte –––>
Transmitting Device:
Once XOFF has been received, it prevents
further transmission of characters. When
XON is received, it re-enables the transmit-
ting device to send data.
Receiving Device:
To prevent too many control commands
from being received at one time, XON is
not transmitted until the buffer is almost
empty.
Activating Data Output
Data output can be activated by sending
a print command or automatically, either
synchronously with the display or at
defined display update intervals (see the
application program and autoprint
settings).
Data Output by Print Command
The print command can be transmitted by
sending a software command (Esc P).
Automatic Data Output
In the “auto print” operating mode, data
are output to the interface port without a
print command. You can have data output
automatically synchronously to the display
at defined intervals, with or without the
stability parameter. The length of a print
interval depends on the weigh cell model
and operating mode.
If you select the auto print setting during
setup, data will be transmitted immediately
the moment you turn on the weigh cell.
In the operating menu, you can define
whether automatic printing can be stopped
and started by pressing the “Print” key.
Faster Ouput Speeds
If you require measured value output at
speeds faster than 10 Hz, please contact
Sartorius for further information.
17

Pin Assignment Chart
Female Interface Connector:
14-contact round connector with screw
lock hardware
Pin Assignment
14-contact: 12-contact:
Electronics module of the weigh cell YDI05-Z... Zener barrier
14-contact 12-contact RS232 signal RS485 signal1)
round round (SBI and xBPI) (xBPI)
connector connector
G A3) Control output “heavier” Control output “heavier”
K B Data output (T+D) R+D – T+D – N
J C Data input (R+D) R+D – T+ D – P
N D Data terminal ready (DTR) –
M E Signal ground Signal ground
F G3) Control output “lighter” Control output “lighter”
A H Clear to Send (CTS) –
E J3) Control output “equal” Control output “equal”
O – Universal switch function2) Universal switch function2)
D L3) Control output “set” Control output “set”
Provide a low-resistance connection between shield and connector casing.
1) RS-485 interface available on request
2) For details, see “External Remote Switch” under “Additional Functions”
3) Control output available only for YDI03-Z
Important Note
! Only electrical equipment with a maximum voltage rating Um of 250 V is permitted to be
connected to the Zener barrier. The voltage rating UZ of this Zener barrier is 12 V.
Cabling Diagram (Connecting Cable for PC)
YCC01-09ISM5 adapter cable, round, DB9-PC
Diagram for interfacing a computer via a Zener barrier to the weigh cell using the
RS-232C/V24 standard and cables up to 15 m long.
! Warning When Using Prewired Connecting Cables:
Cables purchased from other manufacturers often have incorrect pin assignments for
use with Sartorius weighing instruments. Be sure to check the pin assignment against
the chart below before connecting the cable, and disconnect any lines marked “Internally
Connected.” Failure to do so may damage or even completely destroy your weigh cell
and/or peripheral device.
18
B
D
O
E
F
G
M
H
J
N
K
L
C
A

19
Troubleshooting Guide
Error codes are displayed for about 2 seconds. The program then returns automatically to the previous mode.
Display Cause Solution
No segments appear No AC power is available Check the AC power supply
Power supply not plugged in Connect power supply to the wall outlet (mains)
H The load exceeds the weigh cell capacity Unload the weigh cell
L or Err 54 Necessary preload has not been reached Place weighing pan or sample holder on weigh cell
Err 01 Data output not compatible with output format Change the configuration in the operating menu
Err 02 Calibration/adjustment condition
not met, e.g.: Calibrate only when zero is displayed
– not tared Tare the weigh cell
– load on load plate Unload the weigh cell
Err 03 Calibration/adjustment could not Allow the weigh cell to warm
be completed within the required time period up again and repeat the adjustment
Err 07 Function not allowed Contact the Sartorius Service Center
Err 08* The load on the weigh cell is too Check whether the “initial”
heavy to zero the readout zero-setting range” isconfigured
Err 09* No tare possible when gross < zero Zero the weigh cell
Err 10 Tare key blocked when there is data Delete the tare memory by pressing CF (Clear
in tare memory (Net-total). Function) to make the tare key accessible again
Only one tare function can be
performed at one time
Err 11 Tare memory not allowed Check the value entered
Err 12 Tare memory greater than weighing Check the sample or container
range or range limits
Err 30 Interface port for printer output Contact the Sartorius Service Center
Err 340 Operating parameters (EEPROM) Contact the Sartorius Service Center
are defective
No WP** Weigh cell defective Contact the Sartorius Service Center
Function blocked None
The weight readout Unstable ambient conditions Set up the weigh cell
changes constantly (excessive vibration or draft) in another area
at the place of installation Add a draft shield
A foreign object is caught between Remove the foreign object
the load plate and the housing
The weight readout is The weigh cell was not calibrated/adjusted Calibrate/adjust the weigh cell
obviously wrong The weigh cell was not tared Tare before weighing
The weigh cell is not level Level the weigh cell
If any other errors occur, contact your local Sartorius Service Center.
* = Occurs only when operated over the SBI interface (ESC f3_/f4_)
** = Only with optional YAC02FC-X display and control unit

20
Overview
Specifications
Standard specifications User-specific
modifications
Model WZA64-X WZA623-X WZA6202-X WZA12001-X
Weighing capacity g 64 620 6,200 12,000
Readability g 0.0001 0.001 0.01 0.1
Necessary preload on
pan support g 105 600 0 0
Tare range (subtractive) g 100% of the maximum capacity
Repeatability <±g 0.0001 0.001 0.01 0.05
(standard deviation) 1)
Linearity <±g 0.0002 0.002 0.02 0.2
Response time 1) s < 2 < 1.5 < 2 < 1
Adaptation to
ambient conditions By selection of 1 of 4 optimized filter levels
Display update (factory
setting, depends on
filter level selected) s 0.1 – 0.4
Fast display update
(with menu code
setting 1 14 2) s 0.02 – 0.1
Operating temperature range °C +10…+30 °C
Allowable ambient
operating temperature °C +5…+40 °C
Sensitivity drift
within +10… +30°C <±/K 1 · 10–6 2 · 10–6 2 · 10–6 4 · 10–6
External calibration weight g 20 (E2) 200 (E2) 2000 (E2) 5000 (F1)
(of at least accuracy class)
Material:
– Weigh cell: Stainless steel (load receptor: chemically nickel-plated aluminum)
– Electronics module: Stainless steel aluminum/Stainless steel
Net weight, approx. kg 2.0 2.0 2.8 2.8
AC power source, power supply AC adapter 90 Vac (min.) to 264 Vac (max.)
Frequency 48 – 60 Hz
Power consumption 25 VA
Built-in interface RS232C-S/V24-V28; 7-bit; parity: even, mark, odd, or space;
transmission rates 150 to 19,200 baud, 1 or 2 stop bits, software/hardware handshake
IP protection rating
of the weigh cell IP44
1) = depends on system design