Agreto B300-V4-K354 User manual

© AGRETO electronics GmbH
Manual
AGRETO Hydraulic Scale
Indicator B300-V4-K354
8.5.2017

AGRETO Hydraulic Scale
© AGRETO electronics GmbH page:2
Content
1Introduction .................................................................................................. 3
2Scope of Delivery ......................................................................................... 3
3Intended Use................................................................................................ 3
4Security ........................................................................................................ 4
4.1 Safety Instructions for the buyer .....................................................................................4
4.2 Safety instructions for the operator .................................................................................4
4.3 Personal Protective Equipment.......................................................................................5
4.4 Residual Hazards............................................................................................................5
5Technical Specifications .............................................................................. 6
5.1 Pressure Sensor..............................................................................................................6
5.2 Weighing Indicator ..........................................................................................................6
5.3 Cabling ...........................................................................................................................6
6Installation .................................................................................................... 7
6.1 Installation of the Pressure Sensor..................................................................................7
6.2 Installation of the Weighing Indicator ..............................................................................8
7Settings of the Weighing Indicator............................................................... 9
8Calibrate the Weighing Indicator................................................................ 10
9Working with the Hydraulic Scale .............................................................. 12
9.1 Switching on the Weighing Indicator.............................................................................12
9.2 Zeroing..........................................................................................................................12
9.3 Standard weighing procedure ......................................................................................12
9.4 Weighing with TARE-function........................................................................................12
9.5 Weighing with Sum-function .........................................................................................13
9.6 Switching off the Weighing Indicator.............................................................................13
9.7 Error messages.............................................................................................................14
10 Warranty ..................................................................................................... 15
11 Disposal ..................................................................................................... 16
12 Declaration of Conformity .......................................................................... 17
13 Imprint ........................................................................................................ 18

AGRETO Hydraulic Scale
© AGRETO electronics GmbH page:3
1Introduction
Thank you that you have chosen an Agreto three-point scale. You have
acquired arobust tool for daily practice.
The Agreto three-point scale may be used solely for internal use as a
checkweigher. A use for the legal transactions is not permitted.
Please read this manual carefully before using the scale in operation.
In this manual, as usual "weight" is used in common parlance, the term for the
mass.
2Scope of Delivery
1 Pressure sensor with 4 m signal cable
1 Weighing display with weighing software, housing and mounting bracket
4m Cable for weighing signal
2m Power supply cable
1 Manual
3Intended Use
The AGRETO hydraulic scale is designed for installation in the lifting hydraulics
of forklift trucks and front loaders with single-acting lift cylinders.
The pressure sensor measures the pressure in the hydraulic circuit, the display
converts this pressure into the weight and displays it.
In order to get meaningful values, the system must be calibrated after fitting
with a known weight.
To perform weighings the instructions in this manual must be followed.
When using the system in front loaders, the position of the load and the lifting
height has a significant influence on the accuracy.
A weighing on the basis of the hydraulic pressure in the rear hydraulics of a
tractor is not possible due to the different leverage and rotational movements of
the lifting rod!

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4Security
4.1 Safety Instructions for the buyer
Important!
Make sure that each person who works for the first time with the
AGRETO Hydraulic Scale, has read and understood this manual.
4.2 Safety instructions for the operator
Danger!
The AGRETO Hydraulic Scale may only be operated by persons
who are familiar with the operation of the device.
Precaution!
Keep the work area clean! Soiled areas contributes to accidents.
Danger!
Risk of injury from tip-over / fall and inattention while working with
the measuring instrument getting on and off the tractor.

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4.3 Personal Protective Equipment
WARNING!
For people who work with the device, the wearing of safety shoes
is required.
4.4 Residual Hazards
Working with the device residual risks may arise for persons and objects that
cannot be prevented by design or technical protection measures.
WARNING!
The AGRETO Hydraulic Scale must not be operated in explosive
areas.

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5Technical Specifications
5.1 Pressure Sensor
Maximum pressure: 250 bar
Overload 120%, breaking load 150%
Accuracy: +/- 0,1%
Working temperatur: -20 to +65 ° C
Temperature compensation: -10 bis +50 °C
Hydraulic connection: M14 x1,5 inner angle 37°
5.2 Weighing Indicator
6-digit LCD display mit 20mm digit height, LED-illuminated
Power supply 12 bis 24 VDC
Working temperature: -10 to +50 Grad Celsius
Real time watch
Tare by pressing a button (zero position of the empty device)
Sum function (also possible via external switch)
Erschütterungsfest und spritzwassergeschützt
Vibration damped display for reading while driving
5.3 Cabling
5m specially coated weighing signal cable
Waterproof screw connector (IP68)
2m power supply cable for the weighing indicator

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6Installation
6.1 Installation of the Pressure Sensor
Find a suitable place between the controller and cylinder in the pressure
line of your hydraulic system. If any control valves and blocking valves are
used, the pressure sensor must be mounted between these valves and the
cylinders.
Disconnect the hydraulic line at a threaded connection and arrange the
necessary fittings, such as T-piece, socket, etc., these are very individual
and are not supplied with the hydraulic scale.
If no proper separation point is present, you must remove a piece of hose
and let press in a T-piece.
Mount the pressure sensor and route the signal cable to the area of the
weighing indicator.

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6.2 Installation of the Weighing Indicator
Place the weighing indicator at a suitable location in the vehicle.
Connect the power cable to positive and negative to the on-board electrics.
The display can be operated from 12 to 24 V.
Connect the plugs of the weighing signal cable.
The weight signal cable has the following pinout:
Front view cable socket front view cable plug
on the scale connection cable
No.:
Description
Function
1
EX -
Power supply -
2
EX +
Power supply +
3
SI -
Signal -
4
SI +
Signal +
5
6
7

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7Settings of the Weighing Indicator
The weighing indicator has several adjustable parameters that affect the
operation of the system.
To use the weighing indicator with the three-point scale AGRETO following
parameters are set differently from the default settings when delivered:
BUILD CABLE: 4 (Load cell connection with 4 wires)
BUILD CAP: 6000 (Capacity of the Scale 6.000 kg)
BUILD RES: 5 (Resolution of the weighing indicator to 5 kg)
OPTION FILTER: 4 (Strong damping of the display)
OPTION MOTION: OFF (ZERO/TARE/SUM always possible)
OPTION Z.RANGE: FULL (Zeroing possible at any load)
SPEC KEY.FN: SHOW.T (Set function key to SUM-function)
SPEC REM.FN: KEY 4 (Remote control Summing key enabled)
SPEC QCK.CAL: ON (enables the quick calibration)
SERIAL TYPE: PRINT (Type of output for remote control)
The default setting for the capacity of the display (= maximum weighing range)
is set to 6000. If you must weigh heavier loads than 6000 kg the parameter
BUILD CAP has to be set accordingly higher (up 999,999) so that the display
during operation does not go on overload.
For operations with larger loads, the division upwards should be adjusted as
otherwise the displayed value is not meaningful.

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8Calibrate the Weighing Indicator
To adjust the conversion of hydraulic pressure to weight for your system the
weighing indicator must be calibrated before first use.
Think of a defined lift height of your front loader, which you can reposition
exactly at any time as precisely as possible and in which you want to display the
weights later. Due to the construction of a front loader weighing can always be
performed correctly only in this defined lift height. For forklift mast with free lift
you must (usually the lower) decide at least for a lifting range.
Think of a defined position of the work tool (shovel, fork ...) which you can reset
at any time as precisely as possible and in which you want to display the
weights later. Due to the construction of a front loader weighing can always be
performed correctly only in this defined tool position. It is advisable to spin up
the tool until it stops, and always to weigh in this position. For forklift masts,
there is no such limitation.
Decide whether you prefer to weigh after a lifting procedure or a lowering
operation. By different pressure conditions in the system by means of friction in
mechanical parts, should always be weighed just by an at least short lifting or
lowering operation in the same direction.
Consider these three facts in any case already at calibration time!

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To carry out the calibration, please follow the steps below:
Stand with the vehicle on a flat surface.
Turn on the indicator
Press and hold the [ZERO] button until the weight is flashing.
Bring your empty front loader (fork lift mast) in weighing position (as
described above with lift / tool position / direction of movement).
Press the [f] button, the display will show Z.inP, now the zero point is
defined and confirmed with 3 short tones.
Press the [ZERO] button, on the display the weight is flashing again.
Press the [f] button, on the display you see the last set calibration value.
Change the displayed number to the actually filled weight or weight used
for calibration. The number digit by digit can be changed, the current point
will blink. To change the current position use the [SELECT] button. After the
most right digits the most left digit will become active again. To change the
number of the current (blinking) digit use the [PRINT] button.
Strain now the loader (forklift) with a familiar weight or fill a known amount
of material in your tool. The weight should be as large as possible, best fill
your device completely full.
Bring your front loader (fork lift mast) back in weighing position (as
described above with lift / tool position / direction of movement).
Press the [f] button, the display will show S.inP, now the calibration is
performed and confirmed with 3 short tones.
Press the [ZERO] button, the calibration is stored. This is confirmed with a
long tone.
To cancel the calibration procedure at any point just turn off the display.
The calibration process can be done as often as you need. A new calibration is
always overriding the existing calibration.

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9Working with the Hydraulic Scale
9.1 Switching on the Weighing Indicator
Turn on the weighing indicator with the leftmost button. The display shows a
startup sequence then the current weight on the scale, referenced from the zero
point of the last calibration.
If you have performed calibration with the currently attached tool, and have
used this tool as the zero point in this calibration, the empty device then applies
the zero point. You can read the current weight of the load also after switching
off and switching on the weighing indicator.
9.2 Zeroing
Press the [ZERO], the zero point of the display is reset. Use this function to zero
the scale in weighing position. Thus, the zero point is set to the empty weight of
the tool and the weight of the load can then be read directly.
When the weighing indicator is switched on the zero-point from the last
calibration is used.
9.3 Standard weighing procedure
Loading / filling your tool, bring front loading (forklift mast) in weighing position
and read the weight from weighing indicator.
9.4 Weighing with TARE-function
If you want to weigh goods in containers or packaging, with the Tare-function
the weight of the empty container can be automatically deducted without
changing the zero point of the scale.
Make sure that the display shows zero.
Put the empty container onto the scale.
Wait until a meaningful weight is displayed.
Press the [TARE] key. The weighing display jumps back to zero and shows
the NET symbol. Now the weighing indicator shows only the net weight.
Now bring the goods to be weighed in the container.
Wait until the weighing display indicates a stable value.

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Read the weight - it is the net weight of the weighing goods without
packaging.
If you want to weigh several goods in the same empty containers, you can
bring them successively on the scale. As long as the NET symbol is
illuminated the previously determined tare will be deducted and just the net
weight will be displayed
To switch from gross to net, press the [SELECT] button.
To end the tare function, take the entire load of the scale and press the
[TARE] key again.
9.5 Weighing with Sum-function
Bring your front loader (forklifts) in weighing position, wait until the weight is
stable and press the [PRINT] button. Thus, the current weight is added to
the total weight.
To read the sum you press the button [f]. The display first shows the
number of weights in the summation memory (COUNT) and then the total
weight of the total memory (TOTAL).
To delete the total push and hold the [PRINT] button.
The summation can also be triggered with an external button, which the
[PRINT] key practical remote controls. Connect using a cable connection
terminals TX and RX on the weighing display and run this cable isolated
through a push button (NO). When the button is pressed TX and RX are
connected, and the weighing indicator triggers the sum function (Press and
hold to the delete function).
9.6 Switching off the Weighing Indicator
Press and hold the leftmost button until the weighing indicator goes out.

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9.7 Error messages
Error
Description
Action
(U - - - - )
Underload
Increase load or switch the
scale off and back on again
(O - - -- -)
Overload
Reduce load
(TARE)
(ERROR)
Taring attempt outside of the
permitted range
Reduce tare
(ZERO)
(ERROR)
Zeroing attempt outside of the
permitted range
Reduce load
(STABLE)
(ERROR)
A [ZERO] or [TARE] command
can't be executed because the
scale is unstable
Try again when the scale is
stable
(SPAN)
(LO)
The difference between zero
point and calibration weight is
too small
Use a higher calibration
weight
E0200
Calibration is lost
Make a new calibration
E0400
All settings are lost
Make all settings and the
calibration again
E2000
Scale is not connected
Turn off the indicator
Connect the scale
Turn on the indicator
E2000
Weighing signal out of range
Check cable and plugs for
damage

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10 Warranty
Over and above statutory warranty for AGRETO hydraulic balance following
warranty provisions apply :
The AGRETO electronics GmbH guarantees the function and repairs or
replaces all the parts that have a material or manufacturing damage within
the warranty period.
Warranty services will be performed by the AGRETO electronics GmbH.
The decision on the existence of a warranty claim is sole responsibility of
the AGRETO electronics GmbH.
The warranty period begins with the first accounting to an end customer
and ends 5 years from this date of invoice.
Prerequisite for warranty service are the presentation of the original invoice
and compliance with all elements of this instruction manual.
Excluded from warranty are wear, normal wear and tear, damage due to
misuse, negligence or accident.
When processing a warranty claim transport costs incurred will be charged
to the buyer.

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11 Disposal
Dispose the product in the definitive shutdown or parts of
environmentally friendly (metal to the respective metal scrap, plastic
to plastic waste, etc. - Do not dispose as household waste!)
Detailed information can be found in Directive 2002/96/EC

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12 Declaration of Conformity
EC Declaration of Conformity
For the following named product
AGRETO Hydraulic Scale
This is to confirm that it complies with the essential protection requirements of Council
Directive on the approximation of the laws of Member States relating to electromagnetic
compatibility (2004/108/EC).
For the evaluation regarding electromagnetic compatibility, the following standards were
applied:
EN 61000-6-3 :2001
EN55022 :1998
EN60601-1-2 :2007
And with reference to Security:
EN60950 :2000
This explanation is given by the manufacturer
AGRETO electronics GmbH
Pommersdorf 11
3820 Raabs
Submitted by:
Anton Eder
Business Manager
Pommersdorf 26.02.2014
___________________ ________________ ______________________
legally binding signature

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13 Imprint
All information, specifications and illustrations are as of 2017, subject to
technical changes or design changes.
All information in this manual are supplied without liability despite careful
preparation. A liability by the author is excluded.
Copyright © 2017, AGRETO electronics GmbH
AGRETO electronics GmbH
Pommersdorf 11
A-3820 Raabs
Tel.: [phone]
Fax: [phone]
E-Mail: [e-mail]
Internet: www.agreto.com

      
AGRETO electronics GmbH Pommersdorf 11 3820 Raabs AUSTRIA Tel. [phone] Fax [phone]
   
Email: [email protected] Homepage: www.agreto.com Commercial register: 397160i, Jurisdiction: Krems
AGRETO Hydraulic Scale
Applications:
Hydraulic scale for installation in single-acting lift
cylinder with front-end loaders and forklifts
Identification of loading rates and transport volumes
Technical details:
Pressure sensor up to 250 bar
Weighing indicator with stainless steel mounting
bracket
Waterproof ABS housing
Power supply 12 - 24 Volt
Backlit display, digit height 20 mm
Functions of weighing indicator: calibration, zeroing,
taring, summing
Continuously displays the weight of the load
5 m connection cable with waterproof plug
connection
2 m cable for power supply
Not officially calibratable
Deviation in practical use up to +/- 2 %
Benefits:
Simple and inexpensive scale for each hydraulic unit
with single-acting hydraulic lift
Easy installation
Maintenance-free
Weighs your load while working
Allows optimal loading of vehicles
Ideal for check weighing applications

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