General Measure AF-25K User manual

AF-25K / AF-50K
Automatic quantitative unit
User’s manual
Ver A5

Content
1. overview ............................................................................................... 1
1.1 Product parameters, functions and features .................................1
1.1.1 Product parameters........................................................... 1
1.1.2 Product features................................................................ 1
1.1.3 Product features................................................................ 2
1.2 The working principle of.............................................................. 2
1.3 Main purpose and scope of application........................................ 2
2. Precautions for safe use......................................................................... 3
2.1 Safe operation...............................................................................3
2.1.1 Basic Safety Instructions.................................................... 3
2.1.2 Operation safety instructions.............................................. 3
3．Product installation and transportation protection....................................5
3.1 The overall appearance and mechanism of the product are
introduced .......................................................................................... 5
3.2 The installation conditions........................................................... 6
3.2.1 Equipment installation basis and installation conditions........6
3.3 Unpacking and inspection........................................................... 6
3.3.1 The crates ........................................................................ 6
3.3.2 Spare parts for.................................................................. 7
3.4 Product packaging and transportation protection .......................... 7

3.4.1 Packaging requirements.................................................... 7
3.4.2 Transport protection .......................................................... 7
3.4.3 Remove transport limit protection....................................... 8
3.4.4 Requirements for equipment installation and maintenance... 9
4. Product size ........................................................................................ 10
4.1 External dimensions of AF-25K ................................................. 10
4.2 External dimensions of AF-50K ................................................. 12
5. Electrical connections........................................................................... 14
5.1 Air supply connection................................................................ 14
5.2 Electrical connections............................................................... 14
5.2.1 External interface definition.............................................. 15
5.2.2 .Switching value interface wiring description .................... 16
6. The Modbus address table ................................................................... 18
The Modbus address table....................................................................... 18
7. Touch screen Operation Instructions (optional) ...................................... 41
7.1 Login screen ............................................................................... 41
7.2 Touch screen login permission description.................................... 42
7.3 Main Interface description............................................................ 44
7.4The parameter setting page is described........................................ 45
7.5Description of working parameters................................................. 47
7.6Description of formula parameters................................................. 53

7.7 The Quick Mode Parameters interface says............................... 56
7.8 Calibration interface description................................................. 57
7.9 Step of weight calibration.......................................................... 59
7.10 Material calibration steps ....................................................... 59
7.11 Description of switch quantity interface ................................... 61
7.12 Control Parameters screen Description................................... 69
7.13 Communication Parameters screen description....................... 71
7.14 Historical data page description.............................................. 72
7.15 Description of automatic balance adjustment interface............. 74
7.16 Describes the user management interface .............................. 76
7.17 System information interface description................................. 77
8. Basic Function description............................................................ 80
8.1 Basic running process ................................................................. 80
8.2 Overage and underage detection function..................................... 80
9. Common failure analysis and troubleshooting........................................ 81
10. Maintenance and warranty.................................................................. 82

Shenzhen General Measure Technology Co., LTD. All rights reserved.
Without the permission of Shenzhen General Measure Technology Co.,
LTD., no unit or individual shall reproduce, disseminate, transcribe or translate
into any other language version in any form or means.
As our products are constantly improving and updating, we reserve the
right to modify this manual at any time without prior notice. To this end, please
visit the company website frequently for timely information.
Company website: http://www.gmweighing.com

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1. overview
AF-25K /AF-50K is an automatic quantitative unit suitable for quantitative packaging of
granular materials. The feeding mechanism adopts the mode of "motor + vibration feeder"
to realize multi-stage feeding, and the unloading is driven by cylinder to realize rapid
unloading.The product has the characteristics of high speed, high precision and wide range,
which can be widely used in the quantitative packaging machinery of grain, feed, chemical,
rubber and plastic industries.
1.1 Product parameters, functions and features
1.1.1 Product parameters
specifications
AF-25K
AF-50K
Electrical source
AC220V±10%, 50/60Hz,
1000W
AC220V±10%, 50/60Hz,
1000W
The quantitative range
5 ~25 kg
10~ 50 kg
The weighing accuracy
Plus or minus 15g
Plus or minus 25g
Weighing speed
900 PCS/hour or more
800 PCS/hour or more
Metering bucket volume
55L
86L
Working temperature
In 0 ~ 40 DHS C
In 0 ~ 40 DHS C
Maximum humidity
90% OF R.H is not dewy
90% OF R.H is not dewy
Air source
0.4 ~ 0.6 MPa after 2 m/h
0.4 ~ 0.6 MPa after 2 m/h
Note: packaging accuracy and speed may fluctuate due to material, feed and other
environmental factors. The precision and speed are the test data of using round grain rice
in our company's test line.
1.1.2 Product features
1.Automatic weighing function.
2.Three material speed (free blanking + vibration feeding) feeding control.
3.Automatic zero clearing function.

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4.Automatic correction function of process control parameters.
5.Accumulative and statistical functions.
1.1.3 Product features
1. Intelligent: only set the target value, and automatically adjust the optimal quantitative
speed under the condition of ensuring the accuracy.
2. Simple installation: standard external interface flange, quick installation.
3. Data export: with USB interface, data record export is more convenient.
4. Simple operation: 7 inch /10 inch touch screen, Chinese and English display
(optional).
5. Material: 304 stainless steel for contact material.
6. High speed, high precision: the combination of feeding (free feeding + vibration
feeding), both fast and accurate.
1.2 The working principle of
The equipment starts the three-material fast feeding process, namely: fast, medium
and slow feeding. The switch of each speed feeding takes the corresponding advance
quantity in the formula as the control cut-off point. In order to avoid the influence of
overfeed on measurement, the corresponding prohibition discriminant time is set.After
feeding, enter the value setting process, the value setting time can be set, after the end of
the value, the equipment through the switch output "feeding complete" signal;The
equipment receives the external "unloading" effective switching signal, the equipment will
drive the cylinder to open the unloading door of the metering bucket, when the weight of the
material in the metering bucket is lower than the zero zone value set before, the equipment
drives the cylinder to close the unloading door, complete a quantitative process;Before
starting the next quantification process, the equipment carries out a pre-feeding delay, and
then the next feeding, and so on.
1.3 Main purpose and scope of application
AF-25K /AF-50K automatic quantitative unit is mainly used for quantitative packaging
of granular materials, weighing range is 25kg and 50kg, and can be used together with
vacuum shaping packaging machine.

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2. Precautions for safe use
2.1 Safe operation
Before installing and using the product, read the product instruction carefully and have the
equipment tested by professional personnel
2.1.1 Basic Safety Instructions
1. The power supply meets the requirements of this manual, and the equipment
grounding meets the requirements.
2. Power and air should be turned off before starting cleaning, maintenance and
repair.
3. Only use cleaners that do not damage mechanical and electrical equipment.
4. The mounting frame connected with the product should be stable and reliable.
5. Please cut off the power supply and air source when installing the metering
bucket.
6 metering bucket, sensor connected parts and sensors are not allowed to knock,
overload and other damage to the sensor behavior.
7. During the use of the equipment, no part of the body is allowed to extend into
the equipment, and the weigher door has been firmly installed before use.
8. Machines that pack materials harmful to human body should be cleaned after
using special protective tools according to the existing regulations of the
country where the machines are operated. For details, please contact the
relevant local authorities.
2.1.2 Operation safety instructions
1. In order to avoid dangerous accidents, only one person is allowed to operate
the machine.
2. The machine should only be operated by properly trained personnel.
3. Operating instructions, especially safety instructions and regulations, must be
read and fully understood by the operator (or anyone responsible for operating
the machine) before the machine is run.
4. Before the machine runs, the operator must check whether the scale works
normally, whether the machine is fixed and the appearance is normal.

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5. In case of any danger, click the "emergency stop" button on the main interface
or disconnect the main power supply immediately.
6. For the electrical and electronic system, it is not allowed to modify, replace or
carry out any other non-standard operation; Any updates or modifications must
be made by General Measure technologies.
7. Wear safety helmets and other protective devices when maintaining
equipment, especially when entering the packaging area.
8. Be careful to step on or off the maintenance platform.

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3．Product installation and transportation protection
3.1 The overall appearance and mechanism of the product
are introduced
Overall appearance
Lifting ring: used for lifting during equipment installation.
Feeding port: the material to be weighed enters the scale body.
Feeding motor: the main function of weighing is to control the feed quantity.
Electrical control box: built-in circuit board and external signal connection, I/O control
connection and power connection.