HBM WTX110 Operating Manual
Operating Manual | Bedienungsanleitung
English Deutsch
WTX110
Hottinger Baldwin Messtechnik GmbH
Im Tiefen See 45
D-64239 Darmstadt
Tel. +49 6151 803-0
Fax +49 6151 803-9100
info@hbm.com
www.hbm.com
Mat.:
DVS: A4774-1.0 HBM: public
12.2017
Program version: ≥ Firmware Update_20160412.1.IT468E
E Hottinger Baldwin Messtechnik GmbH.
Subject to modifications.
All product descriptions are for general information only.
They are not to be understood as a guarantee of quality or
durability.
Änderungen vorbehalten.
Alle Angaben beschreiben unsere Produkte in allgemeiner
Form. Sie stellen keine Beschaffenheits- oder Haltbarkeits
garantie dar.
Operating Manual | Bedienungsanleitung
English Deutsch
WTX110
English
1 Safety instructions 9.......................................
2 Markings used 14...........................................
2.1 The markings used in this document 14.........................
2.2 Markings used on the device 15...............................
3 System description 17......................................
4 Installation 20..............................................
4.1 Overview of connections 20...................................
4.1.1 ADM (analog sensors) 20.....................................
4.1.2 Serial interfaces 21..........................................
4.1.3 Digital inputs/outputs 22......................................
4.1.4 Analog output 24............................................
4.2 Setup and installation 24......................................
4.3 Mains connection 25.........................................
4.4 General cable assembly 26...................................
4.5 Connection of analog SG sensors 27...........................
4.5.1 Connection cable for analog load cell 29........................
4.5.2 Saving calibration data for legal for trade applications 30..........
4.6 Serial interface connection 32.................................
4.7 USB connection 35..........................................
4.8 Ethernet TCP/IP connection 35................................
4.9 Digital inputs/outputs 36......................................
4.9.1 Overview I/O Connection 37..................................
4.9.2 Overview I/O Connection with Ethernet (Modbus-TCP) Fieldbus
coupler 38..................................................
4.10 Connection of digital inputs/outputs IO (2xDO, 2xDI) 39...........
4.11 Connection of digital inputs/outputs DIO (2xDO, 1xDI) 41.........
4.12 Connection of 15-bit analog output 43..........................
4.13 Power supply for external peripheral devices 47..................
4.14 Connection to 110 … 240 VAC 48.............................
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4.15 Connection to 12…30 VDC 50.................................
4.16 Connection to external battery 12…30 VDC 50..................
4.17 Legal for trade data storage/alibi memory 52....................
4.18 Activating the On/Off key 54..................................
5 Operator control/settings 55.................................
5.1 Service password 55.........................................
5.2 Display and control elements 56...............................
5.3 Example of entries via WTX110 display keys 59.................
5.3.1 Alphanumeric entry 59.......................................
5.3.2 Entering whole numbers 60...................................
5.3.3 Entering numbers with decimal places 62.......................
5.4 Operating the weighing functions 63............................
5.4.1 Tare functions 63............................................
5.4.2 Set / delete tare (Tare mode: Gross/Net) 63.....................
5.4.3 Automatic deletion of tare (Tare mode: Auto Clear) 64............
5.4.4 Repeated taring (Tare mode: Net=0) 65........................
5.4.5 Zeroing 66..................................................
5.4.6 Weighing 66................................................
5.4.7 Switch weight indicator to 10 times the resolution 67..............
Navigation Pilot 68..................................................
6 Service mode 69............................................
6.1 Configure interfaces (Interface) 70.............................
6.1.1 Setting the Ethernet interface (interface: Com0 (Eth)) 70..........
6.1.2 Setting the serial interface (interface: Com1 (SIM)) 71............
6.1.3 Setting the serial interface (Com6 (DWB1)) 73...................
6.2 Enter parameter (General) 73.................................
6.2.1 Continuous Out 78...........................................
6.3 Calibrate scale (Calibration) 79................................
6.4 Configuration 80.............................................
6.4.1 Configure scale (Configuration Scale) 80........................
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6.4.2 Configure digital I/Os (Config. Digital IO) 81.....................
6.4.3 Configure analog outputs (Configuration Analog out) 81...........
6.5 Hardware test (Test) 83......................................
6.5.1 Test digital interfaces (Test: Digital IO) 83.......................
6.5.2 Test serial interfaces (Test: Serial IO) 84.......................
6.6 Reset parameter (Reset) 85...................................
6.6.1 Reset parameter (Reset Parameter) 85.........................
6.6.2 Delete legal for trade weight memory (Reset Approved Weight) 87.
6.7 Network 87.................................................
6.8 Backup/restore (Backup) 90...................................
6.8.1 Back up/ restore using USB 90................................
7 Operating modes 92........................................
7.1 Operating mode STANDARD 92...............................
7.2 Operating mode FILLER 93...................................
7.3 Operating mode COUNT 95...................................
7.4 Application examples COUNT 98..............................
7.4.1 Counting into an empty counting 98............................
7.4.2 Counting from a full container 102...............................
7.5 Operating mode CHECK 105...................................
7.6 Application examples CHECK 109..............................
8 Application 111..............................................
8.1 General setup 111............................................
8.2 Limit switches 114............................................
8.2.1 Mode: Above level (Above level) 115............................
8.2.2 Mode Below level (Below level) 116.............................
8.2.3 Mode: Outside band (Outside band) 117.........................
8.2.4 Mode: Inside band (Inside band) 118............................
8.3 Configuration Digital I/O (Digital I/O) 118.........................
8.3.1 Configuration of the digital inputs and outputs for
Application: Standard 119......................................
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8.3.2 Configuration of the digital inputs/outputs for Application: Filler 120..
8.4 Adapting print formats (Format) 122.............................
8.4.1 Standard print formats 123.....................................
8.5 Factory Defaults 127..........................................
9 Mastermode 128.............................................
10 Supervisormode 130........................................
10.1 General 130..................................................
10.2 Products 131.................................................
10.2.1 Edit/Load from USB/Save to USB 132...........................
10.2.2 <Info> 133...................................................
10.2.3 Product number (Product No.) 133..............................
10.2.4 Product (Product) 133.........................................
10.2.5 Dosing mode (Dos.mode) 133..................................
10.2.6 Tare mode (Tare mode) 135...................................
10.2.7 Emptying mode (Emptying) 135.................................
10.2.8 Optimization (Optimization) 136.................................
10.2.9 Re-dosing (Re-Dosing) 137....................................
10.2.10 Alarm (Alarm:Empty) 138......................................
10.2.11 Valve control Valve 139........................................
10.2.12 Empty weight monitoring (Empty weight) 143.....................
10.2.13 Target weight (Target weight) 144...............................
10.2.14 Empty weight (Empty weight) 144...............................
10.2.15 Minimal starting weight (Min. Start w.) 144.......................
10.2.16 Coarse flow cut-off point Crs.Fl.off 145..........................
10.2.17 Coarse flow monitoring (Crs. Monitor) 145........................
10.2.18 Fine low cut-off point (Fine fl.off) 145............................
10.2.19 Fine flow monitoring (Fine monitor) 146..........................
10.2.20 Minimum fine flow (Min.Fine fl.) 146.............................
10.2.21 Lower tolerance (Lower tol.) 147................................
10.2.22 Upper tolerance Upper tol.) 147.................................
WTX110 A4774-1.0 HBM: public 5
10.2.23 Systematic difference (Syst.diff.) 147............................
10.2.24 Maximum dosing time (Max.dos.t(s)) 148........................
10.2.25 Tare delay (Tare delay(s)) 148..................................
10.2.26 Start fine flow before coarse flow (Start Fine(s)) 149...............
10.2.27 Coarse flow monitoring (time interval) (Cors.mon.(s)) 149..........
10.2.28 Lockout time coarse flow (Lockout crs(s)) 149....................
10.2.29 Fine flow monitoring (time interval) (Fine mon.(s)) 150.............
10.2.30 Lock out time fine flow (Lock fine(s)) 151.........................
10.2.31 Dosing delay 1 (Dos.delay1(s)) 152.............................
10.2.32 Dosing delay 2 (Dos.delay2(s)) 152.............................
10.2.33 Residual flow time (Residuals) 153..............................
10.2.34 Stabilization time (Stabilizat.(s)) 153.............................
10.2.35 Emptying time (Empt.time(s)) 153...............................
10.2.36 Number of dosing operations (No. of dosing) 154.................
10.2.37 Total weight (Total weight) 154.................................
10.2.38 Mean value of dosing results (Mean Value) 154...................
10.3 Weight Storage 155...........................................
10.3.1 Display of saved weight values 156.............................
10.3.2 Reset the "legal for trade weight memory" 156....................
10.4 Logbook (Logbook) 156........................................
10.5 Software ID 157..............................................
10.6 MAC/IP address 158..........................................
11 Calibration 159..............................................
11.1 Multiple-range 159............................................
11.2 Multi-interval weighing machine 161.............................
11.2.1 Adaptation to the weighing environment 162......................
11.2.2 Calibration and geo value setting 163............................
11.2.3 Legal for trade applications 163.................................
11.3 Select group (group 1-9) 166...................................
11.4 Scale parameters 167.........................................
11.5 Calibration 170...............................................
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11.6 Linearization 174.............................................
11.7 Zero Adjust 176..............................................
11.8 Adaptation 178...............................................
11.9 Incline Setup 181.............................................
11.9.1 Incline parameters 182........................................
11.9.2 Incline calibration 183.........................................
11.9.3 Incline linearization 184........................................
11.9.4 Incline weight 186.............................................
11.9.5 Incline Reset 186.............................................
11.10 High resolution 187...........................................
11.11 Reset parameters 187.........................................
11.12 Calculate span 189...........................................
11.13 W&M Info 191................................................
12 PanelX interface 192.........................................
13 Data transfer 193............................................
13.1 Protocol for data transfer 193...................................
14 Continuous output/HBM protocol (Cont.out) 195...............
14.1 HBM Remote protocol 196.....................................
14.2 Customized protocol 197......................................
15 Transport, maintenance and cleaning 200.....................
15.1 Transport 200................................................
15.2 Maintenance 200.............................................
15.3 Cleaning 201.................................................
15.4 Replacing the battery 202......................................
15.5 ROHSII 205..................................................
16 Interference 207.............................................
16.1 Scale error log 207............................................
16.2 Error messages 209...........................................
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17 Geo values 212..............................................
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Safety instructions
1 Safety instructions
Intended use
The device is to be used exclusively for measurement tasks and directly
related control tasks within the application limits detailed in the specifications.
Use for any purpose other than the above is deemed to be non-designated
use.
Depending on the variant, the device operates with a power supply of either
12...30 VDC or 110...240 VAC (50...60 Hz). Note the applicable national and
international requirements according to the state of the art for the relevant
application. Changes to the integrated power supply and/or pre-wired
connection cables (applies to 110...240 AC variants) are strictly prohibited and
shall render all claims against HBM for any damage whatsoever null and void.
Device variants with 12...30 VDC power supply must be used with a shielded
connection cable.
Hardware changes to pre-wired options not described in the WTX110 manual
are not permitted. Service cases must always be processed through HBM.
Any person instructed to carry out installation, commissioning or operation of
the device must have read and understood the Operating Manual and in
particular the technical safety instructions.
In the interests of safety, the device should only be operated by qualified
personnel and as described in the Operating Manual. It is also essential to
comply with the legal and safety requirements for the application concerned
during use. The same applies to the use of accessories.
The device is not intended for use as a safety component. Please also refer to
the "Additional safety precautions" section. Proper and safe operation requires
proper transportation, correct storage, siting and mounting, and careful
operation.
WTX110 A4774-1.0 HBM: public 9
Safety instructions
Operating conditions
S Protect the device from direct contact with water.
S Protect the device from moisture and weather such as rain or snow. The
protection class of the device (front panel after installation) is IP69K
(DIN EN 60529).
S The device is designed for use in industrial environments and conforms with
Class A in accordance with DIN EN55011.
S Do not expose the device to direct sunlight.
S Comply with the maximum permissible ambient temperatures and the
specifications regarding maximum humidity.
S The device must not be modified in terms of design or safety engineering
except with our express agreement. In particular, any repair or soldering
work on motherboards (replacement of components) is prohibited. When
exchanging complete modules, use only original parts from HBM.
S The device is supplied ex works with a fixed hardware and software
configuration. Changes can only be made within the range of possibilities
described in the corresponding documentation.
S The device is largely maintenance-free.
S Please note the following when cleaning the housing:
- Disconnect the device from all current and voltage supplies.
- Clean the housing with a soft, slightly damp (not wet!) cloth. Never use
solvent, as this could damage the label or the housing.
- When cleaning, ensure that no liquid gets into the device or connections.
S The device has a configurable On/Off key. If the key is deactivated, the
device is ready for operation immediately after the power supply network is
connected. Please read the corresponding section in the technical manual.
S The local input voltage must match the input voltage of the device.
S In accordance with national and local environmental protection and material
recovery and recycling regulations, old devices that can no longer be used
must be disposed of separately and not with normal household garbage.
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Safety instructions
S If the weighing terminal is connected via mains cable with a plug, the socket
must be located in the immediate vicinity of the device plug. If the con
nection is permanent, there must be a readily accessible isolating
mechanism present in the supply circuit.
Qualified personnel
Qualified persons means persons entrusted with the installation, fitting,
commissioning and operation of the product who possess the appropriate
qualifications for their function.
This includes people who meet at least one of the three following requirements:
S They have knowledge of the safety equipment and procedures of measure
ment and automation systems, and are familiar with them as project
personnel.
S They are operating personnel of measurement or automation systems and
have been instructed on how to handle the machinery. They are familiar
with the operation of the equipment and technologies described in this
document.
S As commissioning engineers or service engineers, they have successfully
completed the training to repair the automation systems. Moreover, they are
authorized to start up, ground and label circuits and equipment in ac
cordance with safety engineering standards.
Working safely
S The device must not be directly connected to the power supply system.
S Error messages should only be acknowledged once the cause of the error
has been eradicated and there is no further danger.
S Maintenance and repair work on an open device with the power on may
only be performed by trained personnel who are aware of the dangers
involved.
S Automation equipment and devices must be designed to ensure adequate
protection or locking against inadvertent actuation (e.g. access control,
password protection, etc.).
WTX110 A4774-1.0 HBM: public 11
Safety instructions
S For devices operating in networks, safety precautions must be taken in
terms of both hardware and software, so that an open circuit or other inter
ruptions to signal transmission do not result in undefined states or loss of
data in the automation device.
S Following work on settings or password-protected activities, make sure that
any controls that may be connected remain in a safe condition until the
switching behavior of the device has been tested.
Additional safety precautions
Additional safety precautions to meet the requirements of the relevant national
and local accident prevention regulations must be taken in plants where
malfunctions could cause major damage, loss of data or even personal injury.
The scope of supply and performance of the device covers only a small area of
measurement technology. Before starting up the device in a system, a project
planning and risk analysis must first be implemented, taking into account all the
safety aspects of measurement and automation technology so that residual
risks are minimized. This particularly concerns personal and machine protec
tion. In the event of a fault, the relevant precautions must establish safe
operating conditions.
If this device is used as a component in a system, the system design must be
checked by qualified specialists who are familiar with the design and function of
all the individual components!
General dangers of failing to follow the safety instructions
The device is state of the art and as such is failsafe. The device may give rise
to residual dangers if it is inappropriately installed or operated.
Exercise caution when pressing the keys that control movable system parts
such as conveyor systems, flaps, etc. Before pressing these buttons, make
sure that no persons are in the danger zone of moving system parts!
The weighing terminal must not be used in a potentially explosive atmosphere.
It is the responsibility of the owner of the equipment to classify potentially ex
plosive areas (division into zones, equipment groups, temperature classes,
12 A4774-1.0 HBM: public WTX110
Safety instructions
etc.). Local labor inspection authorities and technical inspection agencies can
be of assistance here!
The power input terminals of the device must be connected to safety extra low
voltage (12…30 V
). When connecting external components with their own
DC
power supply (e.g. serial interfaces), care must be taken to ensure that only
SELV is used in that case as well! This applies to variants with 12…30 VDC
power supply.
The weighing terminal contains a lithium battery for storing the data that is
entered. There is a risk of explosion if the battery is replaced incorrectly. It
must only be replaced with the same type of battery, or an equivalent type
recommended by the manufacturer. Dispose of used batteries in accordance
with the manufacturer's instructions.
Notices:
S All switching devices (e.g. relays and contactors) that are connected or in
the immediate vicinity must be wired to effective noise filters (RC filters,
free-wheeling diodes).
S In order to avoid static charge buildup, all metallic parts of a system must
be thoroughly grounded. Moving parts, such as portable scales on plastic
wheels, must be grounded with ground clamps or ground leads of
appropriate diameter.
WTX110 A4774-1.0 HBM: public 13
Markings used
2 Markings used
2.1 The markings used in this document
Important instructions for your safety are specifically identified. It is essential to
follow these instructions in order to prevent accidents and damage to property.
Symbol Meaning
WARNING
CAUTION
Notice
Important
Information
Emphasis
See …
Service mode Menu names and entries are in the Consolas font
This marking warns of a potentially dangerous
situation in which failure to comply with safety re
quirements could result in death or serious physical
injury.
This marking warns of a potentially dangerous
situation in which failure to comply with safety re
quirements could result in slight or moderate physical
injury.
This marking draws your attention to a situation in
which failure to comply with safety requirements
could lead to property damage.
This marking draws your attention to important in
formation about the product or about handling the
product.
This marking draws your attention to information
about the product or about handling the product.
Italics are used to emphasize and highlight text and
identify references to sections, diagrams, or external
documents and files.
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2.2 Markings used on the device
Electrical shock
Disconnect the power plug before opening the housing.
This applies to variants with power supply
110 … 240 V
Note supply voltage
This symbol indicates that the supply voltage must be
between 12 and 30V
12…30 V
CE mark
With the CE mark, the manufacturer guarantees that the
product complies with the requirements of the relevant
EC Directives (the Declaration of Conformity can be
found on the HBM website HBM (www.hbm.com) under
HBMdoc).
.
AC
power supply.
DC
DC
Markings used
. This applies to variants with
Statutory waste disposal mark
In accordance with national and local environmental
protection and material recovery and recycling regula
tions, old devices that can no longer be used must be
disposed of separately and not with normal household
garbage.
Battery disposal
In accordance with national and local environmental pro
tection and material recovery and recycling regulations,
old batteries that can no longer be used must be
disposed of separately and not with normal household
garbage.
WTX110 A4774-1.0 HBM: public 15
Markings used
Marking of pollutant emission limits (for deliveries to China)
Statutory mark of compliance with emission limits in
20
electronic equipment supplied to China.
16 A4774-1.0 HBM: public WTX110
System description
3 System description
The WTX110 weighing terminal is designed for universal use, for example in
weighing, recording and dosing systems.
Depending on the device variant, either analog SG load cells or specified digital
HBM sensors and electronics can be used.
Depending on the device variant, three power supplies are available
S 12 … 30 VDC
S 110 … 240 VAC
S External battery 12 … 30VDC (battery not included)
Two stainless steel housing variants (1) table / wall-mounting or panel
mounting are available. Both variants have IP protection rating IP69K (panelframe: front).
Fig. 3.1 Desktop and wall mounting
WTX110 A4774-1.0 HBM: public 17
System description
Fig. 3.2 Panel mounting
The WTX110 can optionally be equipped with the following hardware options:
S Communications interfaces
- Ethernet TCP/IP interface (e.g. for PanelX, printer or firmware update)
- 2 x Digital Out, 1 x Digital In
- RS485 (4 wires) (e.g. for printer)
- RS232 (e.g. for incline sensor)
- USB2.0 (e.g. for printer, keyboard or firmware update)
S Analog or digital inputs/outputs
- 2 x Digital Out, 2 x Digital In
- 1 x analog output
S Legal for trade data storage 1,000,000
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System description
Important
Only one option can be selected at a time for communications interfaces and
analog or digital I/Os.
Scale
connection
of ADM,
DWB
Battery
CR2032
Slot for legal for
trade data storage
(ASM)
Slot for communications
interfaces Ethernet TCP/
IP, RS485-4, RS232
SIM USB
slot
S100 On/
Off key
Terminals
KL1-KL3 Power
Slot for analog
output or digital
I/Os PIM500,
DAU15
Power supply
12…30 VDC
110…240 AC
supply
For connecting different plug-in modules see section 4 "Installation," page 20.
WTX110 A4774-1.0 HBM: public 19
Installation
4 Installation
4.1 Overview of connections
4.1.1 ADM (analog sensors)
ADM for analog sensors in slot ADM1
6 wires 4 wires
1 + Excitation 1 / 3 + Excitation
2 – Excitation 2 / 4 – Excitation
3 + Sense 5 + Signal
4 – Sense 6 – Signal
5 + Signal
6 – Signal
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4.1.2 Serial interfaces
KL2: Serial interfaces RS485, RS232 in slot SIM1
ConnectionRS232 RS485 4 wires
1 TxD Tx A (Tx+)
2 RTS Tx B (Tx‒)
3 RxD Rx A (Rx+)
4 CTS Rx B (Rx‒)
5 Gnd -
Installation
WTX110 A4774-1.0 HBM: public 21
Installation
4.1.3 Digital inputs/outputs
KL3: Digital inputs/outputs PIM500 in slot PIM1
1 (=0 V) Power supply for external peripheral devices (digital load cells, etc.)
2 (=+12 V) Power supply for external peripheral devices (digital load cells, etc.)
3 IN 0
4 IN 1
5 IN ‒ PIM500: for IN 0, IN 1 and OUT 0, OUT 1
6 OUT 0
7 OUT 1
8 OUT + for OUT 0, OUT 1
Notice
Load carrying capacity of outputs max. 500 mA at 12…24 VDC.
Notice
Current consumption of inputs max. 7 mA at 12…24 VDC.
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KL2: Digital inputs/outputs SIO in slot SIM1
1 OUT 0
2 OUT 1
3 OUT + For OUT 0 … OUT 1 and IN 0
4 IN 0
5 - Must stay clear
Installation
Notice
Load carrying capacity of outputs max. 100 mA at 12–24 VDC.
Notice
Current consumption of inputs max. 7 mA at 12–24 VDC.
WTX110 A4774-1.0 HBM: public 23
Installation
4.1.4 Analog output
KL3: Analog output DAU15 in slot PIM1
1 2 3 I + Current output 0/4–20 mA (+)
4 I – Current output 0/4–20 mA (–)
5 6 U + Voltage output 0/2–10 V (+)
7 U – Voltage output 0/2–10 V (–)
8 -
4.2 Setup and installation
The operating temperature can be between –10 °C and +40 °C with 95 %
relative humidity (non-condensing). Avoid direct sunlight
For wall-mounting the device is first mounted on the wall and then the cables
are connected with the housing cover open.
There are six fastening clamps on the device for control cabinet mounting.
Before commissioning the housing must always be closed and screwed shut
with the hexagonal nuts included with delivery. The hexagonal nuts must be
tightened crosswise to a torque of 1.1 Nm.
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Installation
4.3 Mains connection
DANGER
Danger of death! it is absolutely necessary to read the General safety instruc
tions chapter before making the mains connection!
The WTX110 is available for connection in three variants:
S Alternating voltage systems K-WTX110-*-AC*-**-***-**-***-**
S DC voltage systems K-WTX110-*-DC/-**-***-**-***-**
S External batteries K-WTX110-*-BA/-**-***-**-***-**
Power supply
unit
Power supply
The power supply is connected to terminal 4.
WTX110 A4774-1.0 HBM: public 25
Installation
The device power supply must not simultaneously supply machines or
equipment that cause grid interference (motors, relays, heaters, etc.). Even
brief surges or drops in the voltage supply can adversely affect how the device
functions or lead to damage. An uninterruptible power supply (UPS) or voltage
stabilizer can prevent this.
The device must be incorporated into the potential equalization of the system.
There is a threaded bolt on back for this purpose.
4.4 General cable assembly
All connection cables are directed through the bolted cable connection on the
bottom of the device to the inside of the housing.
Cable sheath Shield Swivel nut Plastic
insert
Metal
housing
Check
nut
► Slide the swivel nut over the cable sheath.
► Push the plastic insert over the cable sheath until the right edge of the
insert meets the end of the cable sheath.
► Unbraid the shield and lay it as flat as possible over the right part of the
plastic insert so that the shield is conductively connected with the housing.
The shield wires must not be longer than the right part of the insert.
Otherwise the bolted cable connection no longer provides a reliable seal.
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Installation
► Guide the cable with plastic insert into the metal housing.
► Screw on the swivel nut and tighten it with a screwdriver.
WARNING
Cut the individual wires to length so that the parts conducting mains voltage
(connection cable, power supply unit) cannot touch! Use wire end ferrules for
leads with fine wires and make certain no individual wires are sticking out.
4.5 Connection of analog SG sensors
The WTX110-A permits the connection of analog SG sensors with the following
specification:
S Maximum 8 SG load cells with 350 Ω each
S Load cell impedance range 43 Ω ... 3321 Ω
S Legal for trade weight resolution 10.000 e, internal 524.000 d
S Smallest permissible input signal for legal for trade applications: 0.33 μV/e
S Sample rate 50–800 measurements / second (can be adjusted in Service
mode)
S Supply voltage for load cells: 5 V ±5 %, clocked
S Connection in 4- or 6-wire configuration
WTX110 A4774-1.0 HBM: public 27
Installation
Tip
Use a suitable terminal box to connect multiple load cells, for example types
VKK1-4 or VKK2-8 from HBM, for wiring the load cells.
6-wire configuration of load cell 4-wire configuration of load cell
Fig. 4.1 Schematic diagram of load cell with 6- and 4-wire configuration
Fig. 4.2 Connection of an analog SG sensor in 6-wire configuration to the ADM
module
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