Itowa HANITO 5.4 mt User manual

HANITO
MANUAL APPLICABLE TO:
HANITO 5.4 mt
HANITO 3 mt
HANITO 300 kg
HANITO 600 kg
MAHIGB
REV 3
Aproved by J. Varela

TABLE OF CONTENTS: Page
1. INTRODUCTION 1
2. SAFETY INSTRUCTIONS 3
3. DESCRIPTION OF THE DEVICE 5
3.1. MATERIALS INCLUDED 5
3.2. ACCESSORIES 6
3.2.1. Batteries 6
3.2.2. Battery charging unit 6
3.2.3. Carrying case 6
3.2.4. Metal fixtures 7
4. TECHNICAL DATA 8
5. OPERATING INSTRUCTIONS 10
5.1. OPERATION 10
5.1.1. Start-up 10
5.1.2. Test completion 11
5.1.3. Stop 11
5.1.4. Start-up with a weight 11
5.1.5. Negative weight 11
Causes of a negative weight 12
Intermittent negative weight 12
5.1.6. Constant zero 12
5.2. ZEROING 13
5.2.1. Considering the dead weight 13
5.2.2. Gross weight 13
5.2.3. TARE, NET WEIGHT AND GROSS WEIGHT Function 14
Tare calculation 14
Net weight calculation 14
Gross weight calculation 15
Summary 15
5.2.4. Tare storage 15
5.2.5. Negative Tare 16
5.2.6. Overweight 17

6. REPLACING AND CHARGING BATTERIES 18
6.1. REPLACING THE BATTERY 18
Replacing alkaline batteries 18
Replacing rechargeable batteries 19
6.2. CHARGING BATTERIES ONCE FITTED 19
6.3. MAINTENANCE OF BATTERIES AND RECHARGEABLE BATTERIES 20
7. MAINTENANCE 21
7.1. CLEANING 21
7.2. TROUBLESHOOTING 21
7.3. RUSTED BATTERY HOLDER 21
7.4. CALIBRATION 22
8. WARRANTY 23
ANNEX
A. USEFUL ADDRESSES 24

HANITO
USER´S MANUAL
Page -1-
1. INTRODUCTION
The Hanito 300 kg, Hanito 600 kg, Hanito 3mt, and Hanito 5.4 mt weighing units have been designed
exclusively for electronic weighing of loads on crane devices. Any other use is considered inappropriate.
Proper usage includes adhering to all instructions contained in the operating instructions as well as
performing all necessary inspection or maintenance tasks.
This device has been developed using state-of-the-art electronics. The system includes an instrument
amplifier, digital-to-analog converter with a 4-1/2 Digit-BCD output as well as a microprocessor with a
1.5-micron-structure and low energy consumption through the use of CMOS Technology.
The sturdy case is made of steel and is capable of withstanding heavy loads in industry or construction
sector for which this device is primarily designed.
The LCD display allows a lower energy consumption during approximately 100 hours of operation with
six batteries of R6 (Mignon) size.
A highly developed mathematic algorithm, together with powerful software, ensures high precision even
when the load is moving. Vibrations caused by the moving load are automatically offset.
The following functions are available to the user:
-AUTOMATIC ZEROING AT THE STARTUP
-THERMAL CORRECTION OF THE ZERO SETTING
-MANUAL ZEROING
-TARE
-BATTERY CHARGE STATUS SENSOR
A special feature is the use of a roller bearing for load hook holding. Although this increases the cost of
the device, it also ensures precise weighing, since the load cell is not subject to lateral stresses or
torsional movements.

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USER´S MANUAL
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This is a carefully designed high-tech product, which will enable you to handle your weighing problems
for many years if you handle the unit properly.
We strongly recommend that you read the instructions carefully for precise information on the features
and operating principles of this standalone weighing system.

HANITO
USER´S MANUAL
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2. SAFETY INSTRUCTIONS
This section contains some tips on safe operation of the Hanito series devices.
1. Only battery types approved by the manufacturer should be used. If batteries from other sources are
used, personal injury or damage to the device may occur.
2. If the weighing system will not used for a long time, remove the batteries from the device, since they
will become discharged and the battery electrolyte could leak and damage the device.
3. Batteries must be treated as hazardous waste. Used batteries should not be mixed in with normal
household rubbish. Please follow the instructions given by the battery manufacturer concerning
battery disposal.
4. As an option, the device can be used with rechargeable batteries. In this case, the device is provided
with a suitable charging outlet. Please make sure that no non-rechargeable batteries are fitted in the
device as the device could be damaged and operating safety could be adversely affected.
5. In order to charge the batteries in the device use only the manufacturer’s charging unit (for the
module, please see accessories). If a different charging unit is used, the device could be damaged
and its operating safety adversely affected.
6. Avoid constant high air humidity and condensation. Protect the device against water spray and
chemicals.
7. Fully satisfactory operation can only be ensured when the following operating conditions are met:
Air humidity: 0 - 90% (without condensation)
Ambient temperature: 0 - 40°C
8. Never perform any repairs on the electrical/mechanical system of the devices yourself. The device
must be serviced (except for battery changing) only by a technical support organisation authorized by
ITOWA S.A.U.
9. The manufacturer accepts no liability for any damages arising from nonobservance of the cautions
concerning risk contained herein.

HANITO
USER´S MANUAL
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10. The weighing system operator should not start any load motion until he makes sure that the load has
been safely fastened and no one is in the risk area.
11. Before every load motion the weighing system operator must make sure that the rated load of the
weakest elements of the entire load fastening system (load housing elements, fasteners, carrier
elements) has not been exceeded.
12. The weighing units must be checked for proper attachment of all individual parts (shackle, load
hooks) particularly for proper seating of all cotter pins.
13. Should the weighing unit operator detect any visible defects, he must remove them immediately. If
this is not part of his responsabilities or he is not sufficiently qualified, if required, he must switch off
the device and notify the employer of the defect.

HANITO
USER´S MANUAL
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3. DESCRIPTION OF THE DEVICE
3.1. MATERIALS INCLUDED
The material supplied with the HANITO weighing unit
consists of the following individual parts (please see
figure):
Electronic weighing system
1. Operation panel with Lexan membrane
2. " I " Button: ON
3. " O " Button: OFF
4. " →T←" Button: TARE
5. " →0←" Button: ZEROING
Fixtures
6. Ring
7. Shackle
8. Roller bearing
9. Load hook
Fig. 1 - HANITO DEVICE

HANITO
USER´S MANUAL
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3.2. ACCESSORIES
In order to meet individual requirements of our customers, optional accessory parts are available.
3.2.1. Batteries
If the device is used extensively, battery costs can be reduced by using six 1.2V Ni-Cd batteries. These
batteries supply a current of 700 mA/h, hence allowing operation for 40 hours without a new recharge
being necessary. While a set of batteries is supplying a dynamometer, another set can be externally
charged to allow for continuous operation.
3.2.2. Battery charging unit
a) External charging
The batteries can be recharged in 12 hours with a separate standard charging unit,
once they have been removed. In this way, the set of reserve batteries remains always charged.
b) Charging with the batteries fitted
The device’s built-in charging outlet direct charging of rechargeable batteries with the aid of the
standard charging unit. However, in this case, the safety instructions (Section 2, Safety
Instructions) must be followed.
3.2.3. Carrying case
The device is made of steel and, therefore, is very sturdy. Moreover, the display is scratch-proof due to
protection provided by the housing frame and Lexan membrane. This is a very sensitive area which must
not be exposed to direct shocks.
When transporting the device, do not place it with the display facing the floor. Always make sure that the
display does not knock against loose elements in the vehicle while it is being transported.
If the device is to be transported frequently, we recommend that you buy the carrying case to ensure that
the device can be transported under fully safe conditions.

HANITO
USER´S MANUAL
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3.2.4. Metal fixtures
The rings and shackles are available in different sizes with the appropriate bolt types in order to simplify
the fastening of the weighing system onto the crane. Using appropriate fixtures increases the speed and
precision of the weighing operation. However, when equipping the device, please keep the maximum
allowable weighing system load in mind at all times.
The accessories described in Section 3.1.1 to 3.1.4 are available directly from:
ITOWA S.A.U.
Faraday 159
08224 Terrassa / Barcelona -Spain
or from your local dealer.

HANITO
USER´S MANUAL
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4. TECHNICAL DATA
Rated load (depending on the module): 300, 600, 3000, 5400 kg
Precision: 0.1, 0.2, 1, 2 kg
Display: 4 - digit LCD display; digit height 25.4 mm
Supply voltage: 6 x 1.5 VDC
Supply allowable tolerance: - 30%/+ 10%
Power consumption: 20mA
Power supply through 6 alkaline batteries, model: LR6
(Size: Mignon; AA); 1.5V
or 6 nickel cadmium batteries, model: R6
(Size: Mignon; AA); 1.2V; Capacity: 700mAh
Battery service life: Non-rechargeable batteries: approx. 100 operating
hours.
Rechargeable batteries: 40 operating hours
Allowable ambient temperature: 0 to +40C
Air humidity: 0 to 90 % (without condensation)
Housing: Made of 2 mm-thick steel, kiln-baked epoxy resin
finish.
Display operation states:
Battery almost empty YES
Tare YES
Overweight YES
Sound pressure level < 70 dB (A)

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USER´S MANUAL
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LOAD CELL
Maximum load: 125 % (R.L.)
Load limit: 500 % (R.L.)
Temperature range: -10ºC to +50C
Subdivisions: 300 O.L.L.M., Class C
Protection rating: IP67 (DIN 40050)
Materials: Alloy steel with hard-nickel rust-inhibiting treatment.
Dimensions and weight (of all materials supplied):
Type: 300kg 600kg 3000kg 5400kg
Dimensions: L 140 L 140 L 140 L 140
W 130 W 130 W 130 W 130
H 550 H 550 H 550 H 730
Weight: 300 kg 600 kg 3000 kg 5400 kg

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USER´S MANUAL
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5. OPERATING INSTRUCTIONS
5.1. OPERATION
5.1.1. Start - up
In order to start the device, press the " I " (ON) button (Fig. 2).
The dynamometer will then carry out the initial test (Fig. 3) in which all figures of the weight display are
activated to check the display indicators.
Figure 3 - TEST
Figure 2 - OFF

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USER´S MANUAL
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5.1.2. Test completion
After this test is finished, the first zero in the weight display (Fig. 4) appears after activating the zero
figure; this indicating that the dynamometer is ready for weighing.
CAUTION!: The dynamometer is provided with automatic zeroing which uses the load suspended from
the hook when operation is started as a dead weight. This requires that the device has no load
suspended when it is started, since the load will automatically be considered as net weight.
Fig. 4 - 0 kg
5.1.3. Stop
To switch off the dynamometer, press the " O " (OFF) button (Fig. 2)
5.1.4. Start-up with a weight
If you start the weighing system with a load suspended, it must be removed; this will cause a negative
sign to appear on the left side of the display (Fig. 5), meaning that the weight is below ZERO.

HANITO
USER´S MANUAL
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5.1.5. Negative weight
If the negative sign appears when starting (Fig. 5), press the "→0←" (ZEROING) button to reset the
dynamometer to zero weight (Fig. 4). The dynamometer will then be ready to display new weight data.
Fig. 5 - NEGATIVE WEIGHT
Causes of negative weight
The negative sign is displayed by the dynamometer to indicate that the load is smaller than the original
zero load. This occurs, for example, when load slings or weights suspended from the dynamometer are
removed after it is switched on or after the last zeroing. These are some of the most frequent operations
causing negative weight data to appear on the display. In these and other cases, the negative sign can
be removed as described above.
Intermittent negative weight
In some cases a negative weight and a zero are displayed alternately. In almost all cases this occurs due
to mechanical vibrations generated by the elastic load slings. These vibrations can also be caused by
improper belt arrangements used to fasten the dynamometer. Although weighing operations are possible
under those conditions, it is strongly recommended that you check, repair or replace the parts causing
those vibrations in order to obtain higher weighing precision.

HANITO
USER´S MANUAL
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5.1.6. Constant zero
Although both the hardware and software are supplied with powerful filters, negative weight corrections
should be performed when the crane is at rest in order to initially achieve a constant zero, if possible.
Please check with your dealer concerning the possibility of reinforcing those filters if you operate traveling
cranes with a nominal width of many meters, as this type of equipment frequently experiences vibration
problems.

HANITO
USER´S MANUAL
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5.2. ZEROING
The zeroing function (5: " →0←" button) has also been designed to prevent the dead weight of load
slings, fastening accessories, pull chains, platforms, pallets, etc. from being weighed at the same time.
5.2.1. Considering the dead weight
If dead weight such as load slings, chains or accessories are incorporated into the weighing process, the
weight to be included should be hang from the dynamometer. As soon as the weight to be excluded
appears on the display (Fig. 6), press the " →0←" (ZEROING) button. After approximately one second,
the zero will appear on the display (Fig. 7) and the dynamometer will be ready for a new weighing
operation.
Fig. 6 - DEAD WEIGHT Fig. 7 - ZERO WEIGHT
5.2.2. Gross weight
The GROSS WEIGHT is the sum of the NET WEIGHT and the TARE. For example, when weighing a
container loaded with apples, the overall weight is the GROSS WEIGHT, the weight of the apples is the
NET WEIGHT and the container weight is the TARE.

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USER´S MANUAL
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5.2.3. TARE, NET WEIGHT AND GROSS WEIGHT Function
The dynamometer is equipped to display the gross weight, net weight and tare with the aid of several
operations.
TARE calculation
To calculate the tare, hang the appropriate element, e. g. an empty apple container from the
dynamometer. The figure "1638" (Fig. 8) appears on the display, indicating the TARE. In order to store
this value, press the "→T←" button; the display shown in Figure 9 will appear.
Fig. 8 - TARE TO BE STORED
Fig. 9 - STORED TARE
NET WEIGHT Calculation
In order to calculate the net weight, fill the container with the material to be weighed (in our case, apples).
The display now shows the NET WEIGHT. The colon in the middle of the display area means that the
NET WEIGHT is being displayed (Fig. 10).

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USER´S MANUAL
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GROSS WEIGHT Calculation
To calculate the gross weight, press the "→T←" button. The GROSS WEIGHT (Fig. 11) will appear on
the display.
Figure 10 - NET WEIGHT
Figure 11 - GROSS WEIGHT
Summary
In our example, the TARE (container) is 1638 kg, the NET WEIGHT (the apples) is 2850 kg and the
GROSS WEIGHT (NET WEIGHT + TARE) is 4488 kg.
5.2.4. TARE storage
As soon as the dynamometer has stored the tare, the container can be lowered for filling. After it has
been filled, hang again from the dynamometer in order to obtain the net weight.

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USER´S MANUAL
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5.2.5. Negative TARE
If a weight stored as tare is removed from the dynamometer, the dynamometer displays a negative tare
on the display (Fig. 12), which means that the dynamometer has been loaded with a weight smaller than
the value stored as a tare. This condition can be removed in 2 ways:
- by replacing the removed weight, e. g., enter the weight removed from the dynamometer again, in order
to display the net weight again or
- by pressing the "→0←" (ZEROING) button.
If the latter method is used, the stored tare is cleared and the dynamometer is once again ready for the
next operation (Fig. 13).
Figure 12 - NEGATIVE TARE
Figure 13 - ZERO WEIGHT