Inspection Systems

AD-4961A Series
Checkweigher AD-4961A Better accuracy in high speed range! Easy to use!
AD-4961A series are Checkweighers that can be used in a variety of industries, especially in the food industry.

AD-4961A series are equipped with a new CPU which has increased processing power, and the newly implemented vibration elimination filter HPDF (High Performance Digital Filter) has been optimized to increase accuracy at high speeds.

Equipped with a 7-inch color touchscreen, AD-4961A series have high visibility and operability, and even first-time users can easily set up the system.
PDFBrochure (PDF 8.5MB)
Accuracy in high speed range is improved by max. 80%. *1
High repeatability checkweighing by optimizing checkweighing settings
Waterproof (IP65) as standard.
Display unit: 7-inch color touchscreen
Stainless Steel Cover for display unit is available as an option. (Factory option)
Storable product info: Up to 1,000 products (including product images)
Connectable to Barcode Reader allowing automatic switching of the product to be weighed. *2
Data such as Summary and Operation History can be output to a USB flash drive.
Assures consistent quality by way of the Operation History function and restricting operation according to user level
Various communication methods: RS-232C or RS-485 (selectable), a USB flash drive, wired LAN and wireless LAN
Feedback control by weighing result

*1 When compared to data from A&D’s conventional models.
*2 Barcode reader shall be prepared by the customer.
Accuracy in high speed range is improved by max. 80%. *1
Contributes to increased productivity.
The design has evolved to be less susceptible to wind and vibration than previous models, and environmental resistance has been greatly improved. AD-4961A series are equipped with a new CPU which has increased processing power, and the newly implemented vibration elimination filter HPDF (High Performance Digital Filter) has been optimized to increase accuracy by up to 80% at high speeds. *1
Checkweighing process can be performed better at high speed range than conventional models, contributing to improved production capacity and efficiency.

*1 When compared to data from A&D’s conventional models.
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High speed checkweighing
Max. 120 m/min : AD-4961A-6001224 and AD-4961A-2KD2035
Max. 80 m/min: AD-4961A-6K3050
For the load cell box (weighing side only), more protection is provided with
the newly developed Lower Breeze Break.
AD-4961A-6001224: Standard
AD-4961A-2KD2035: Option
High repeatability checkweighing by optimizing checkweighing settings
The optimum checkweighing settings are automatically set when the weight and length of weighed products, and throughput or conveyor belt speed are input. Setting for vibration elimination filter (HPDF) is also automatically selected. So, checkweighing can be performed easily regardless of the operator.
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Waterproof structure: IP65
Stainless steel cover for display unit is available as an option.
Equipped with a 7-inch color touchscreen and a new CPU, operability has been improved and AD-4961A series are easier to use.
AD-4961A series have high visibility and operability, and even first-time users can easily set up the system.
By registering and displaying a photo of the weighed product, a user can immediately check what product is being produced.
Up to 1,000 products can be registered and categorized into 10 different groups.
An image of each product can also be quickly and easily registered from a USB flash drive.
The standard display unit is made of a reasonably priced, waterproof resin. If preferred, a stainless steel cover is also available as an option.
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USB interface as standard specification USB interface is in the control box when the Stainless Steel Cover is mounted.
Automatic switching of product settings by reading barcode
By reading the barcode on a product, the product settings on the Checkweigher are automatically switched to those of the scanned product. *2

*2 Barcode reader shall be prepared by the customer.
Wireless LAN as standard feature enables remote monitoring.
Wireless LAN function is equipped as a standard feature. *3 *4
Various data such as Summary Data can be monitored on tablets, etc., in another room, even during weighing.

*3 The standard wireless LAN is for monitoring only and cannot be used for remote operation.
*4 Wireless LAN can be used depending on the regulations in your region.
Also, remote maintenance is available.
You can operate a Checkweigher from a PC by connecting it to a PC.
In addition, the AD-4961A can be used for offsite maintenance by "remotely operating *5" a PC connected to the AD-4961A via wired LAN from another PC in a remote location via an Internet connection.

*5 In addition to the AD-4961A, other necessary equipment such as a PC and an Internet connection must be provided by the customer.
User management
To operate the device, user name and user level are registered.
For each user registered, you can limit the operations they can perform depending on their user level.
Inadvertent operation can be avoided by assigning each user a user level from the four levels below.
Data summary
Various summary data such as histograms (frequency including defects), X-Bar Control Chart, R Control Chart, total summaries, etc., are available.
You can visually confirm fluctuation of weighing results and adjust your manufacturing machine accordingly.
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Histogram display screen X-Bar Control Chart R Control Chart
History function
Weighing results can be automatically recorded in a USB flash drive during weighing.
Output data: Date, time, number, product number, weight data, preset tare and judgment.

[USB flash drive]
Approx. 8 MB memory size is required for 8 hours operation at the maximum throughput (320 pcs/min.)
Approx. 8 GB memory size is required for 24 hours 365 days operation.

Operational History shows a record of the changes made to the settings.
The Operation History as well as Weighing History can be saved onto a USB flash drive.
Weighing History and Operation History are helpful for management of HACCP.
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Weighing Result display screen Example of Weighing Result output in CSV format Operation History display screen
Summary, Weight Result, Control Chart and Histogram (PDF or print)
After weighing, press the “PDF” key on the summary display. A PDF report is output to a USB flash drive.
The same reports can be printed out by pressing the “Print” key when a PostScript printer is connected to AD-4961A.
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Summary Weight Result
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Control Chart Histogram
A wide variety of external interfaces for various types of communication
The provided contact points can be used to connect the outputs of Rejector and/or alarm, and also for the inputs from a metal detector or an X-ray inspection system, etc.
RS-232C or RS-485 (selectable) interface (for connecting to Modbus RTU, barcode reader, PC, PLC, etc.), wireless LAN functionality (for remote monitoring), wired LAN interface (for remote operation, Modbus TCP/IP, etc.), and USB interface are provided as standard features. These various connection interfaces enable a Checkweigher to be connected to an X-ray inspection system and/or metal detector.

Modbus communication *6
With Modbus communication, seamless connection can be easily achieved.
Operations such as stopping and starting weighing, collecting data and changing product can all be set from an external device.

Furthermore, data can be saved to a USB flash drive and output to a printer.
In addition, the communication function enables interlocking and linking to other devices in the production line.

*6 Modbus is a communication protocol developed by Modicon, Inc.
Application example
Final inspection of packaged boxes
Can be used as the final inspection step in your production line by checking whether some items in a box are missing by weighing the box.
Many logistics centers and production plants for food, cosmetics, machine parts industry, etc., adopt a checkweigher in their final inspection phase.
Feedback Control by Weighing Result
Weighing results can be fed back to another system upstream of the production line.
Model AD-4961A-6001224 AD-4961A-2KD2035 AD-4961A-6K3050
Capacity 600 g 500 g / 2,000 g 6,000 g
Resolution 0.01 g 0.01 g / 0.1 g 0.1 g
Accuracy(3δ) *7 0.08 g 0.08 g / 0.18 g 1.0 g
Max. throughput 400 pcs/min 320 pcs/min 145 pcs/min
Conveyor belt width 120 mm 200 mm 300 mm
Conveyor length Weighing: 240 mm, Infeed: 360 mm 350 mm 500 mm
Transport medium Urethane belt
Conveyor belt speed 15 to 120 m/min 10 to 80 mm/min
Product length 22 to 200 mm 30 to 300 mm 80 to 450 mm
Max. product width 120 mm 200 mm 300 mm
Weighing sensor Strain gauge load cell
Display 7-inch touchscreen color display (WSVGA)
Operation method Touchscreen (resistive film type), operation buttons
Number of registrable products 1,000 products (10 groups x 100 products)
Communication functions RS-232C or RS-485 (for Modbus RTU, barcode reader *9, PC, PLC, dump printer, etc.)
Wireless LAN *10 *11 (for remote monitoring)
Wired LAN (for remote operation *12, Modbus TCP/IP and PostScript printer)
USB (for USB flash drive [Data storage and image import use] *13)
External input/output Input: Non-voltage contact input 8 points (option available to expand to max. 16 points) *14
Output: Relay output 8 points (option available to expand to max. 20 points) *14
Dust-/water-proof IP65
Operation temperature/humidity range 0 to 40℃ / humidity 85% or less (with no condensation)
Power supply Single phase AC100 to 240 V (+10% / -15%), 50 / 60 Hz, Approx. 180VA
Electric power source should be connected to terminal (M4).
Power cable should be provided by the customer.
Weight *8 Approx. 35kg Approx. 50kg
Material Weighing unit: Stainless steel and PP resin, Display: ABS resin
Conveyor unit: Aluminum (alumite coating), stainless steel and PP resin
Control unit: Stainless steel, PP resin and PE resin, Base unit: Stainless steel
*7 Depends on the shape and the condition of the product and installation environment
*8 Weight is for the standard condition without option and/or Rejector.
*9 Barcode reader shall be prepared by the customer.
*10 Reception sensitivity of wireless LAN depends on radio wave environment.
      For continuous monitoring, it is recommended to use a combination of the HMI indicator and the Modbus communication function
      via RS-485 or wired LAN as communication may be interrupted.
*11 Wireless LAN can be used depending on the regulations in your region.
*12 An Internet connection and a system for remote operation are required. Please consult with your sales staff for further detail.
*13 USB flash drive should be formatted in FAT32.
*14 Maximum number of input/output points that can be added will depend on the combination of additional input/output points.
      Please consult with your sales staff for further detail.
Options (Accessories)
AD4961-01 Display Stand AD4961-02 Tower light AD4961-13 Cross Plate
AD-4961-01Display Stand AD-4961-02Tower Light AD-4961-13Cross Plate
The display is attached on the opposite side from the standard display position, across from the user.
The display is located approx. 310 mm above the conveyor belt.
Orientation of the display can also be adjusted.
Highly visible LED comparator light with 3 colors.
Easily set on the Checkweigher DO (Digital Output) map.
(Example: Red = Overweight, Yellow = Metal detected, Green = OK)

* AD-4961-01 Display Stand is required to mount this option.
Dust-/water-proof protection of the light part is IP53.
Eliminates gap between infeed conveyor and weighing conveyor and conveys products smoothly.
Suitable for weighing small products.
Material: Stainless steel

* This option is for AD-4961A-2KD2035.
Product Guide    
Product Guide    
Adjusts products to be conveyed on the center of both conveyors.
Material: Stainless steel

AD-4961-1236-14 (For Infeed Conveyor of AD-4961A-6001224)
AD-4961-1224-14 (For Weighing Conveyor of AD-4961A-6001224)
                                Applicable product width is from 30 mm to 120 mm.

AD-4961-14 (For Infeed and Weighing Conveyor of AD-4961A-2KD2035)
                        Applicable product width is from 50 mm to 100 mm.

AD-4961-14-3050 (For Infeed or Weighing Conveyor of AD-4961A-6K3050)
                                Applicable product width is from 100 mm to 300 mm.
Photo gallery
AD-4961A-2KD2035 with AD-4981-2057 (Flipper Type Rejector)
AD4961A AD4961A
AD-4961A-2KD2035 with optional Display Stand, Tower Light, Stainless Steel Cover, AD-4982-2035 (Conveyor Drop Type Rejector), and Base Unit (AD-4982-11-79) for the Rejector AD-4982-2035 can be connected to an AD-4961A-2KD2035 without its Base Unit.
AD4961A AD4961A
AD-4961A-6K3050 with AD-4983-3050 (Pusher Type Rejector) AD-4961A-6001224 with optional Upper Breeze Break, Display Stand, Tower Light and AD-4984-1246 (Air Jet Type Rejector)

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