A9 Digital Weighing Indicator for Platform Scales

• 7-digit high-visibility LED weight display
• Integrated membrane control keypad
• Three-level battery status indication
• Analog load-cell signal input
• External scoreboard and computer connectivity
• RS232 standard communication interface
• Optional RS422 and RS485 communication

• High-Precision A/D Conversion: Sigma-Delta conversion technology processes analog load-cell signals from -16 mV to 18 mV.
• Stable Weighing Performance: High consistency and strong resistance to electrical interference support reliable operation in farm and industrial weighing systems.
• Multiple Load Cells: Supports up to eight 350 Ω load cells or sixteen 700 Ω load cells.
• 6-Wire Load Cell Connection: Provides automatic compensation for long signal cables.
• 7-Digit LED Display: Large 0.8-inch LED digits provide clear weight visibility.
• AC/DC Dual Power: Supports mains power and an external rechargeable battery for flexible installation.
• Large Data Storage: Stores up to 1001 weighing records, 1000 vehicle ID and tare records, and 201 commodity records.
• Flexible Communication: Standard RS232 with optional RS422 or RS485 interfaces supports computer and remote data applications.
• External Display Support: Can connect to a remote large scoreboard through current-loop or RS232 communication.
• External Printing Support: The A9 has no built-in printer but provides interfaces for compatible external printing equipment.

• Livestock platform scales
• Pig, cattle and goat-farming-equipment/" target="_blank" class="keylink">sheep pen scales
• Farm floor scales
• Feed and agricultural material weighing
• Industrial platform scales
• Electronic truck scales
• Static weighing systems with multiple load cells
• Weighing systems requiring computer, scoreboard or printer connectivity

• Confirm that load-cell type, resistance and total number are compatible with the indicator before connection.
• Use the correct 6-wire load-cell wiring configuration and ensure all terminals are securely connected.
• Keep signal cables separated from high-power motor and electrical cables to reduce interference.
• Perform zero setting and calibration after installation or major scale maintenance.
• Use the two-point correction function where required by the weighing-system calibration procedure.
• Protect the indicator from direct water spray, excessive condensation, dust accumulation and mechanical impact.
• Check battery condition and charging status regularly when DC backup power is used.
• Verify RS232, RS422 or RS485 communication settings before connecting computers or remote devices.
• Back up important weighing records before service or configuration changes.
• Electrical installation and calibration should be carried out by qualified personnel familiar with electronic weighing systems.

Q: What type of weighing systems can use the A9?
A: It is designed for static electronic weighing systems such as platform scales, floor scales, livestock scales and truck scales using compatible analog load cells.

Q: How many load cells can be connected?
A: The A9 supports up to eight 350-ohm load cells or sixteen 700-ohm load cells.

Q: Does the A9 have a built-in printer?
A: No. The standard A9 does not have a built-in printer. The A9+P version provides an integrated printer, while the A9 can connect to compatible external printing equipment.

Q: Can the indicator connect to a computer?
A: Yes. RS232 communication is standard, while RS422 and RS485 are available as optional interfaces.

Q: Can a remote large display be connected?
A: Yes. The indicator provides an interface for an external scoreboard using current-loop or RS232 communication.

Q: Does it work when mains power is unavailable?
A: Yes. The indicator supports an external 6 V / 10 Ah rechargeable battery in addition to AC power.

Q: How many weighing records can be stored?
A: Up to 1001 weighing records can be stored, together with 1000 vehicle and tare records and 201 commodity records.

Q: Is the A9 a dedicated dynamic animal-weighing indicator?
A: The A9 is primarily designed for static weighing systems. For applications requiring specialized live-animal anti-motion algorithms, confirm the required indicator configuration before ordering.