Scaime eNod4-D BOX User manual

NU-eNod4D-ETH-E-0418_216710-E.docx
SCAIME SAS – Technosite Altéa – 294, Rue Georges Charpak – 74100 JUVIGNY - FRANCE
Tél. : [phone] – www.scaime.com
eNod4-D ETHERNET
Digital Process Transmitter
Characteristics and functioning

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SCAIME Manual : NU-eNod4D-ETH-E-0418_216710-E.docx
1 SAFETY INSTRUCTIONS ............................................................................................ 5
1.1 Getting started ................................................................................................ 5
1.2 Protection ........................................................................................................ 6
1.3 Power supply .................................................................................................. 6
1.4 Grounding ....................................................................................................... 6
1.5 Installation ....................................................................................................... 6
1.6 Maintenance .................................................................................................. 6
1.7 Caution ............................................................................................................ 6
2 ENOD4 PRODUCT RANGE ....................................................................................... 7
2.1 General presentation ..................................................................................... 7
2.2 Versions ........................................................................................................... 7
2.2.1 Communication protocol versions ......................................................... 7
2.2.2 IO+ version ................................................................................................ 7
2.2.3 Bluetooth® version .................................................................................... 7
2.3 eNodView Software ....................................................................................... 8
2.4 eNodApp - Mobile Application .................................................................... 8
3 GENERAL CHARACTERISTICS .................................................................................. 9
3.1 Dimensions ...................................................................................................... 9
3.2 Electrical characteristics ............................................................................. 11
3.3 Legal for trade .............................................................................................. 12
4 CONNECTIONS ...................................................................................................... 14
4.1 Cabling basic rules ...................................................................................... 15
4.1.1 Prevent Electrostatic Discharges .......................................................... 15
4.1.2 Prevent Electromagnetic disturbances ............................................... 16
4.2 Power supply connection ........................................................................... 17
4.3 Load-cell wiring ............................................................................................ 17
4.4 IO+ version .................................................................................................... 17
4.5 Inputs / outputs connections ...................................................................... 18
4.5.1 Typical connections .............................................................................. 19
4.6 JB4 option ..................................................................................................... 19
4.6.1 Specifications ......................................................................................... 20
4.6.2 Excitation trimming procedure ............................................................. 20
4.6.3 Spring terminal connections ................................................................. 21
4.7 220V option ................................................................................................... 21
5 COMMUNICATION ................................................................................................ 22
5.1 Communication Interface connections .................................................... 22
5.1.1 Process control communication .......................................................... 22
5.1.2 PC communication ................................................................................ 22
5.1.3 AUX Communication (for HMI) ............................................................. 22
5.2 Communication address selection ............................................................ 22
5.3 Communication rate selection ................................................................... 23
5.4 Communication protocols .......................................................................... 23
5.5 Simultaneous functioning of communications .......................................... 24
5.6 Bluetooth® Communication (Optional) ...................................................... 25
6 CALIBRATION AND SCALE ADJUSTMENT ............................................................. 26
6.1 Physical calibration ..................................................................................... 26
6.2 Theoretical calibration ................................................................................. 26
6.3 Scale adjustment coefficient ...................................................................... 26
6.4 Gravity correction ........................................................................................ 26
6.5 Scale interval ................................................................................................ 26

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7 FILTERS .................................................................................................................... 27
7.1 Filtering related to the A/D conversion rate .............................................. 27
7.2 Bessel low pass filter .................................................................................... 27
7.3 Notch filter ..................................................................................................... 27
7.4 Self-adaptive filter ........................................................................................ 27
8 MEASUREMENT AND STATUS ................................................................................. 28
8.1 Gross measurement ..................................................................................... 28
8.2 Net measurement ........................................................................................ 28
8.3 Tare value ..................................................................................................... 28
8.4 Factory calibrated points ............................................................................ 28
8.5 Logical IN/OUT level .................................................................................... 28
8.6 Preset Tare value .......................................................................................... 28
8.7 Measurement status ..................................................................................... 28
8.8 Weighing diagnosis ...................................................................................... 28
8.8.1 Global weighing diagnosis ................................................................... 28
8.8.2 Sensor input control ............................................................................... 28
9 INPUTS FUNCTIONING ........................................................................................... 29
9.1 Inputs assignment: ....................................................................................... 29
9.2 General functions: ........................................................................................ 29
9.3 Functions attached to an operating mode: .............................................. 29
10 OUTPUTS FUNCTIONING ...................................................................................... 30
10.1 Outputs assignment: .................................................................................. 30
10.2 General functions: ...................................................................................... 30
10.3 Functions attached to an operating mode: ............................................ 31
10.4 Feeding mode in dosing processes ......................................................... 31
10.5 Analog output (IO+ version) ..................................................................... 31
11 DOSING BY FILLING OPERATING MODE ............................................................ 33
11.1 Starting conditions ..................................................................................... 35
11.2 Cycle description ....................................................................................... 35
11.2.1 Flow rate control (optional) ................................................................ 35
11.2.2 Automatic taring at start ..................................................................... 35
11.2.3 Coarse feed effect neutralization time .............................................. 35
11.2.4 Fine feed level ...................................................................................... 35
11.2.5 Fine feed effect neutralization time ................................................... 36
11.2.6 Target weight and in-flight weight ..................................................... 36
11.2.7 Final stabilization time ......................................................................... 36
11.2.8 Tolerances ............................................................................................ 36
11.2.9 End of emptying level and emptying holding time .......................... 36
11.2.10 End of cycle waiting time ................................................................. 36
11.2.11 Effective end of cycle ....................................................................... 36
11.3 Inputs utilization .......................................................................................... 36
11.3.1 Start cycle ............................................................................................. 36
11.3.2 Suspend current cycle ........................................................................ 36
11.3.3 Stop cycle ............................................................................................. 37
12 DOSING BY UNLOADING OPERATING MODE .................................................... 38
12.1 Reloading management ........................................................................... 39
12.1.1 Reloading at the end of the cycle ..................................................... 40
12.1.2 Reloading at the start of the cycle ..................................................... 40
12.2 Cycle description ....................................................................................... 40
12.2.1 Flow rate control (optional) ................................................................ 40
12.2.2 Verification of the available product quantity .................................. 40

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12.2.3 Start delay ............................................................................................. 40
12.2.4 Coarse feed effect neutralization time .............................................. 40
12.2.5 Fine feed level ...................................................................................... 40
12.2.6 Fine feed effect neutralization time ................................................... 40
12.2.7 Target weight and in-flight weight ..................................................... 40
12.2.8 Final stabilization time ......................................................................... 41
12.2.9 Tolerances ............................................................................................ 41
12.2.10 End of cycle waiting time ................................................................. 41
12.2.11 Effective end of the cycle ................................................................. 41
12.3 Digital inputs utilization .............................................................................. 41
12.3.1 Start cycle ............................................................................................. 41
12.3.2 Suspend current cycle ........................................................................ 41
12.3.3 Stop cycle ............................................................................................. 41
13 ENODTOUCH – INTERFACE HOMME MACHINE (OPTION) ................................ 42
13.1 Online functioning ...................................................................................... 42
13.1.1 Startup screens ..................................................................................... 42
13.1.2 Multi-eNod screens ............................................................................. 43
13.1.3 Main screen .......................................................................................... 47
13.1.4 Result displaying and storage (eNod4-C, eNod4-D) ....................... 51
13.1.5 Main setup menu ................................................................................. 53
13.2 Dosing setup menu (eNod4-D) ................................................................. 73
13.2.1 Dosing Cycle Setup ............................................................................. 74
13.2.2 Starting conditions setup ..................................................................... 75
13.2.3 Dosing Timing Setup ............................................................................ 76
13.2.4 In-flight correction Settings ................................................................. 77
13.2.5 Flow rate control settings .................................................................... 78
13.2.6 Dosing Tolerance control .................................................................... 79
13.2.7 Dosing Target values ........................................................................... 79
13.2.8 Configuration of Quick Access menu ............................................... 81

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1 SAFETY INSTRUCTIONS
Important information
Be sure to read this manual thoroughly before starting the PRODUCT. This manual is part of the PRODUCT and comes
with it. Rules for the prevention of risks and accidents as well as safety rules must be observed!
The PRODUCT is manufactured in accordance with the current state of the art and in accordance with safety
regulations laws of the Labour Code.
The general safety requirements must be observed during all phases of operation and repair of equipment. Non-
compliance of written warnings in this manual is contrary to the requirements of safe operation and normal operation
of the PRODUCT.
As a user of this product, it is necessary to strictly follow in your work environment, all warnings and requirements
necessary to perform safely any operation on the PRODUCT.
This symbol means that there is a risk of electrisation that can lead to death or serious injuries instructions
are not followed.
This symbol means that there is a risk of danger that can lead to injuries if safety instructions are not
followed.
Earth protection connection
WEEE 2002/96/CE Waste of electrical and electronic equipment directive imposes to final users the
management of electrical and electronic equipment (EEE). For the purpose, it is mandatory for them to
selectively collect their EEE depositing them in dedicated places.
DANGER
Danger: dangerous situation that can lead immediately to death or serious injuries.
WARNING
Warning: situation potentially dangerous that could lead to death.
CAUTIOUS
Cautious: situation potentially dangerous that could lead to injuries.
1.1 Getting started
WARNING
Security provided by this product is provided for use for its intended purpose. Maintenance can only be performed by
qualified staff.

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1.2 Protection
WARNING
The PRODUCT, with 220V option, must be linked to a protection device. This one must comply to the standards in
force in the country (NFC 15-100 in France) and must be part of the building in which the PRODUCT has been installed.
The circuit breaker must be 16 Amps and should have a response curve of type C.
WARNING
The mains plug of the PRODUCT serves as disconnecting device. Consequently, it must be connected near the device
and easily accessible.
1.3 Power supply
WARNING
The PRODUCT, with 24VDC version, must be powered by a power supply in accordance to EN 60950-1. It must be
located close to the PRODUCT.
1.4 Grounding
DANGER
To minimize any risk of electric shock, frame and all parts of the equipment must be connected to Earth.
1.5 Installation
The PRODUCT must be fitted on a support by using the mounting brackets at the rear of the box.
1.6 Maintenance
The PRDUCT can be cleaned using a damp slightly cloth.
DANGER
For your safety, before any technical intervention or cleaning, it is imperative that the equipment is turned off and not
plugged in. It is forbidden to replace components with power cable connected.
1.7 Caution
When installing, moving, or handling this product or peripherals connected to it, refer to the instructions below to
connect and disconnect the various cords.
Connection:
Disconnection:
1.
Turn off the units.
2. Start by connecting all cords to the units.
3. Connect the interface cables to the connectors.
4. Connect the power cords into outlet.
5. Turn on the units.
1.
Turn off the
units.
2. Disconnect the power cords from the outlets.
3. Disconnect the interface cables from the
connectors.
4. Disconnect all cabled from the units.

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2 ENOD4 PRODUCT RANGE
2.1 General presentation
eNod4 is a high speed digital process transmitter with programmable functions and powerful signal processing
capabilities. eNod4 offers operating modes for advanced process control both static and dynamic.
Quick and accurate:
 Analog to digital conversion rate up to 1920 meas/s with maximum scaled resolution of ±500 000 points.
 Digital filtering and measurement scaling.
 Measurement transmission up to 1 000 meas/s.
Easy to integrate into automated system:
 USB, RS485 and CAN communication interfaces supporting ModBus RTU, CANopen® and PROFIBUS-DPV1
(depending on version) communication protocols.
 Digital Inputs/Outputs for process control.
 Setting of node number by rotary switches and communication baud rate by dip switches.
 Integrated selectable network termination resistors.
 Wiring by plug-in terminal blocs.
2.2 Versions
2.2.1 Communication protocol versions
 Strain gauges load-cell conditioner with CANopen® and ModBus RTU communication.
 Strain gauges load-cell conditioner with Profibus DP-V1 and ModBus RTU communication.
 Strain gauges load-cell conditioner with Modbus TCP and ModBus RTU communication.
 Strain gauges load-cell conditioner with EtherNet/IP and ModBus RTU communication.
 Strain gauges load-cell conditioner with Profinet IO and ModBus RTU communication.
 Strain gauges load-cell conditioner with EtherCAT and ModBus RTU communication.
EDS, GSD, ESI and GSDML configuration files for above protocols can be downloaded from our web site:
http://www.scaime.com
2.2.2 IO+ version
In conjunction with all communication protocol versions, eNod4 can supports an opto-insulated board fitted with:
 2 additional digital inputs and 1 speed sensor dedicated input.
 0-5V or 0-10V analog output voltage.
 4-20mA, 0-24mA, 0-20mA or 4-20mA with alarm at 3.6mA analog output current.
2.2.3 Bluetooth® version
In conjunction with all communication protocol versions and IO+ version, eNod4 can supports a communication board
that allows to exchange information via Bluetooth®.
Radio information
Wireless communication Bluetooth® Low Energy 4.2
Max. RF output power -16.9 dBm
Frequency range 2.4 – 2.4835 GHz

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2.3 eNodView Software
So as to configure eNod4, SCAIME provides eNodView software tool. eNodView is the software dedicated to eNod
devices and digital load cell configuration from a PC. This simple graphical interface allows accessing the whole
functionalities of eNod4 for a complete setting according to the application.
eNodView features and functions:
 eNod4 control from a PC
 Calibration system
 Modification/record of all parameters
 Measure acquisition with graphical display
 Numerical filters simulation
 Frequential analysis FFT
 Process control
 Network parameter
eNodView software is available in English and French version and can be downloaded from our web site:
http://www.scaime.com or ordered to our sales department on a CD-ROM support.
2.4 eNodApp - Mobile Application
So as to configure eNod4, SCAIME provides eNodApp application through the Google Play Store. eNodApp is the
application dedicated to eNod devices (fitted with the Bluetooth® option) configuration from an Android device. This
simple graphical interface allows accessing most of the functionalities of eNod4 for a quick setting according to the
application.
eNodApp features and functions:
 eNod4 control from an Android device
 Calibration system
 Modification/record of all parameters
eNodApp application is available in English and French version and can be downloaded from the Google Play Store.

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3 GENERAL CHARACTERISTICS
3.1 Dimensions

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3.2 Electrical characteristics
Power supply
Unit
Supply voltage
10.....28
V
DC
1
10.....2
40
V
AC
Max supply power 4.4 W
Additional max supply power (IO+ version) 3 W
Temperature range
Storage temperature range -25...+85 °C
Working temperature range -10...+40 °C
Load cell sensor
Minimum input resistance > 43 Ω
sensor connection 4 or 6 wires
Bridge excitation voltage 5 VDC
Communication
RS 485 Half-duplex
Rate 9 600...115 200 bauds
Ethernet 2 x RJ45 10/100 Mbits/s
Logical inputs
Number 2 (+2 with IO+ version)
Type opto-insulated type 3
Low level voltage-current 0 / 5 VDC – 0 /1.5 mA
High level voltage-current
11 / 30 VDC
–
2 / 9 mA
7 mA @ 24VDC
Logical outputs
Number 4
Type solid state relay
Max. current @ 40°C 0,4 A
Max. voltage in open state 53 VDC or 37 VAC
Max resistor in close state 2 Ω
Metrological specifications on A3 connector input (load
-
cell type sensor)
Input sensor range for a load cell sensor
 7.8 mV/V
Thermal zero drift typical 1.5 ppm/°C
Thermal span drift typical 2 ppm/°C
Linearity deviation 0.003 % FS
Conversion rate 6.25 ... 1920 meas./s

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Metrological specifications on analog output (IO+
version
)
Output voltage range 0-5 or 0-10 V
Output current range 4-20, 0-24 ou 0-20 mA
Max. load on current output 500 Ohm
Outputs resolution 16 bit
Max. linearity error 1 LSB
Total error +/- 0.07 %FSR
Thermal zero drift typical +/- 2 ppm/°C
Thermal span drift typical +/- 3 ppm/°C
Conversion rate A/D converter rate value Hz
Speed sensor power
-
supply (IO+
version
)
Bridge excitation voltage (V+ …V-) 12.5 +/- 2 V
Bridge excitation current 30 mA
Isolation 1000 V
Speed sensor input (IO+
version
)
IN5 HTL 0…2.5 / 5…30 VDC
IN5 TTL 0…0.5 / 2.4…5 VDC
Isolation 1000 V
3.3 Legal for trade
Characteristics Unit
Accuracy class III or IIII
Maximum number of weighing ranges 1
Maximum number of verification scale divisions 6000
Load cell(s) excitation voltage 5 V
Minimum voltage division per verification scale division
(ΔUmin) 0.5 µV
Minimum voltage of the weighing range 0.5 * n * 10-3 mV
Maximum voltage of the weighing range 39 mV
Value of factor pi 0.5
Minimum impedance for the load cell 47 Ohm
Type of load cell(s) connection system 4-wire or 6-wire
Maximum impedance for the load cell 1500 Ohm
Maximal length/section measurement cable 166 m/mm2

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eNod4* is an analog data processing unit evaluated as a part of a non-automatic weighing instrument (NAWI) with
applicative software -T or an automatic weighing instrument (AWI) like an automatic gravimetric filling instrument
with applicative software -D or a catchweigher with applicative software -C. This instrument is not intended for direct
sales to the public. It is suitable for conditioning OIML R60 certified strain gauges load cell(s) with analog output.
Legal for trade mode has to be activated internally in order to respect metrological requirements. All the
functionalities will be conformed to the essential requirements for certified weighing instruments.
Sealing will be material on the eNod4 housing and load cell connections. If a junction box is used it will have to be
sealed too. eNod4 is fitted with a software sealing for metrological parameters and once activated, is composed of an
event counter and a CRC value of specific and adjustment parameters. These values shall be marked on the terminal
device connected after the last official verification when putting in service the instrument. Any mismatch between the
displayed values on the terminal and those marked will signify a broken sealing.
eNod4 is fitted with a data storage device (DSD) so called alibi memory. Any weighing result (or checkweigher result
with applicative software -C, or dosing result with applicative software -D) is stored internally and can be recalled on
demand. 130816 records can be stored permanently at maximum. Any record is identified by a unique 32-bit long
number. This identifier is incremented each time a weighing result is stored and transmitted.
The minimum time between two DSD recording operations is 50ms.
* legal for trade use does not apply to software applicative for beltweigher (-B) and weigh feeder (-F)

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4 CONNECTIONS
Repère
Mark
Fonction
Function
Repère
Mark
Fonction
Function
A1
alimentation
power supply
1 +VDC
JP1 Câblage capteur 6 fils / 4 fils
6-wire / 4-wire loadcell wiring
2 GND
A3
connexion
capteur
load cell
connection
1 Exc+ JP2 Résistance de terminaison connexion AUX
AUX connection termination resistor
2 Sens+
3 Exc- A8
connexion AUX
AUX connection
1 RB/TB (B-)
4 Sens- 2 RA/TA (A+)
5 Sig+ 3 GND
6 Sig-
CN2
1 V+
7 Shield 2 IN5-HTL

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4.1 Cabling basic rules
4.1.1 Prevent Electrostatic Discharges
For ESD protection, cabling for the analog load cell must include a ferrite and a silicone protection sleeve, not included
with the transmitter.
Install the ferrite by passing the analog cell connection through the ferrite and wrapping it around once, as shown on
the following picture:
A4 Port USB
Connexion IO+
IO+ connection 3 IN5-TTL
A5
entrées/sorties
IN / OUT
1 IN1+ 4 V-
2 IN1- 5 GNDA
3 IN2+ 6 IN4+
4 IN2- 7 IN3+
5 OUTCOM 8 Iout
6 OUT1 9 GNDA
7 OUT2 10 Vout
8 OUT3
SW1 Sélecteur Adresse haute (hex)
High Address selector (hex)Low
9 OUT4
SW2 Sélecteur Adresse basse (hex)
Low Address selector (hex) A7
2 x RJ45
Ethernet
Ethernet ETH1 RJ45 (sortie)
Ethernet ETH1 RJ45 (output)
SW3 Sélecteur Baud rate AUX/USB
Aux/USB Baud rate selector
Ethernet ETH2 RJ45 (entrée)
Ethernet ETH2 RJ45 (input)
SW4 bouton poussoir Reset
reset push button NS / MS
LED NS: Network Status (Bus Fault Profinet)
LED MS: Module Status (System Fault Profinet)
S1-S2-S3-S4 LED sorties logiques
outputs LED PWR-USB LED alimentation & activité USB power supply & USB activity LED

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4.1.2 Prevent Electromagnetic disturbances
Observe these basic rules to guard against Electromagnetic disturbances.
Rule 1: Large area grounding contact
 When installing the devices, make sure that the surfaces of inactive metal parts are properly bonded to
chassis ground (see following sections).
 Bond all inactive metal parts to chassis ground, ensuring large area and low-impedance contact (large cross-
sections).
 When using screw connections on varnished or anodized metal parts, support contact with special contact
washers or remove the protective insulating finish on the points of contact.
 Wherever possible, avoid the use of aluminium parts for ground bonding. Aluminium oxidizes very easily and
is therefore less suitable for ground bonding.
 Provide a central connection between chassis ground and the ground/protective conductor system.
Rule 2: Proper cable routing
 Organize your wiring system into cable groups (high-voltage/power supply/signal/measurement/data cables).
 Always route high-voltage and data cables in separate ducts or in separate bundles.
 Install the measurement cables as close as possible to grounded surfaces (e.g. supporting beans, metal rails,
steel cabinet walls).
Rule 3: Fixing the cable shielding
 Ensure proper fixation of the cable shielding.
 Always use shielded data cables. Always connect both ends of the data cable shielding to ground on a large
area.
 Keep unshielded cable ends as short as possible.
 Always use metal/metalized connector housings only for shielded data cables.
 Shields of load cells must be connected to the pin ‘Shield’ of the load cell connector of the eNod4 or, in case
of junction box, directly on the body of this one.
Rule 4: Special EMC measures
 For cabinet or enclosure lighting in the immediate range of your controller, use incandescent lamps or
interference suppressed fluorescent lamps.
Rule 5: Homogeneous reference potential
 Create a homogeneous reference potential and ground all electrical equipment.
Use sufficiently dimensioned equipotential bonding conductors if potential differences exist or are expected between
your system components.
Equipotential bonding is absolutely mandatory for applications in hazardous areas.

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4.2 Power supply connection
On the front panel a green light ‘PWR’, (D7) indicates if power is connected.
4.3 Load-cell wiring
 4 wires load-cell: jumpers in place (by default at delivery).
 6 wires load-cell: jumpers removed
4.4 IO+ version
An analog board in current and voltage might be used with eNod4 to provide IO+ version. This has to be requested
when ordering eNod4 product. The analog output is both current and voltage galvanically isolated at 1000V.
Voltage output might be set either 0-5V or 0-10V, and the current output to 4-20mA, 0-24mA, 0-20mA or 4-20mA
alarm 3.6mA. It is software setting and both output (current and voltage) might separately be enable.
The IO+ version is fitted with two additional inputs IN3 and IN4:
1
2
+VDC
GND
A1
1
2
3
4
5
6
7
Exc+
Sens+
Exc-
Sens-
Sig+
Sig-
Shield
4/ 6 wire jumper
ON: 4 wires
OFF: 6 wires
IOUT
N
Current output connection
CN2
Iout
GNDA
Vout
8
9
10
VOUT
N
Voltage output connection
CN2
Iout
GNDA
Vout
8
9
10
A3

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The IO+ version is fitted with a pulse input and a dedicated power supply for a speed sensor (belt weigh feeder, belt
weigher). Two input voltage levels are proposed for the pulse input of the speed sensor: TTL logical level or high
voltage 30 V maxi level.
4.5 Inputs / outputs connections
An indicator light in front panel is assigned to each Output.
Inputs connection
CN2
V+
IN5-TTL
IN5-HTL
V-
GNDA
IN4+
IN3+
Iout
GNDA
Vout
1
2
3
4
5
6
7
8
9
10
V supply
Speed sensor power supply
CN2
V+
IN5-TTL
IN5-HTL
V-
GNDA
IN4+
IN3+
Iout
GNDA
Vout
1
2
3
4
5
6
7
8
9
10
Speed sensor input connection
CN2
V+
IN5-TTL
IN5-HTL
V-
GNDA
IN4+
IN3+
Iout
GNDA
Vout
1
2
3
4
5
6
7
8
9
10
D1
D2
D3
D4

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4.5.1 Typical connections
Inputs : Connection to a detector Inputs : Connection to a push button
Outputs : Possible connections
4.6 JB4 option
PNP
+
-
S
IN+
IN-
NPN
+
-
S
IN+
IN-
+
-
IN+
IN-
+
-
IN+
IN-
+
-
Load
OUT
OUTCOM
+
-
Load
OUT
OUTCOM
Load
OUT
OUTCOM

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4.6.1 Specifications
Version Standard
Version ATEX / IECEx
Cable diameter (output) Ø 6 … Ø 11.5 mm Ø 6 … Ø 10 mm
Cable diameter (inputs) Ø 2.5 … Ø 7 mm Ø 4 … Ø 8 mm
Wire cross section 0.14 mm2 … 1 mm2
Cable stripping length 7 …10 mm
4.6.2 Excitation trimming procedure
For load cells with matched outputs, shortcut the potentiometers by soldering bridges J1, J2, J3, J4.
First adjustment with reference weight:
1. Turn the potentiometers fully clockwise for each load cell so that the potentiometer resistance is as
low as possible.
2. Lay your reference weight at one corner of your weighing system and note the result of the
weighing indicator.
Repeat this operation for each corner.
3. Spot the corner with the lowest output.
Load successively each corner with the same reference weight and adjust at each step the
potentiometer to match the lowest output corner value.
4. The load cells outputs are now matched.
Then proceed to normal zero and gain adjustment of the weighing indicator.
Optional overvoltage protection
Corner balancing potentiometer
Additional resistor for special use* (not supplied)
* cut strip conductor before insertion