Description
After purchasing one ATO load cell, you can buy a special digital display controller to obtain readings directly, or buy a transmitter to output standard signal to PLC, DCS and other systems. Customized output signal is 0-5V, 0-10V, or 4-20mA.
Note: The load cell cannot be connected to both the transmitter and the controller at the same time — only one can be selected.
Digital load cell weight sensor are available in multiple measurement ranges: 0-350kg. They support two output options: RS485 and RS232, with a high accuracy of ±0.05% and a 150% F.S safety overload.
Specification
| Model | ATO-GPB100D/ATO-GPB144D |
| Measuring Range | 3/5/10/25/30/40/50 (kg) (ATO-GPB100D) |
| 60/100/200/350 (kg) (ATO-GPB144D) | |
| Resolution | ＜5kg: 0.1g, ≤50kg: 1g, 60-100kg: 2g, 150-200kg: 5g, 350kg: 10g |
| Identification Rate | Default 1 (adjustable based on user application) |
| Comprehensive Error | 0.005% F.S |
| Zero Temperature Drift | 0.002% F.S/°C |
| Span Temperature Drift | 0.002% F.S/°C |
| Creep | 0.018% F.S/30min |
| Output Signal | RS485 or RS232 |
| Baud | RS485:115200, RS232:19200 |
| A/D Sample Rate | 1200 times/second |
| A/D Resolution | 300000 |
| Weight Output Speed | RS485: 3ms, RS232: 20ms |
| Operating Temperature | RS485: -20~+70°C, RS232: -10~+70°C |
| Power Supply Voltage | 5~12VDC |
| Safe Load | 150% |
| Ultimate Load | 200% |
| Cable Type | Four-core shielded cable |
| Cable Length | φ5mm × 1.5m |
| Protection Level | IP65 |
| Communication Protocol | RS485: MODBUS RTU & factory custom protocol, RS232: factory custom protocol only |
Feature
- Durable Construction: Made of aluminum alloy with anodized surface treatment for enhanced corrosion resistance and longevity.
- Integrated Digital Module: Built-in digital signal processing unit provides high accuracy and stable performance.
- Multiple Communication Options: Digital load sensor supports RS485 and RS232 digital signal output, making it compatible with various industrial systems.
- Large Weighing Platform: Supports a maximum sample plate size of 400 × 400mm, suitable for different applications.
- Pre-Calibrated for Convenience: Factory calibration eliminates the need for on-site adjustments, simplifying installation.
- Customizable Weight Acceleration: Digital load cell weight sensor allows users to modify weight acceleration settings to suit different environments.
- Adaptive Resolution: Automatically adjusts resolution based on the measured weight, eliminating the need for manual recalibration.
- Simple Command Control: RS485 load cell requires only one zeroing command and one weight retrieval command for efficient operation.
- Wide Application Range: Suitable for smart storage shelves, intelligent weight cabinets, and waste recycling stations.
Dimension (unit: mm)
3-50kg size:
60-350kg size:
Wiring Definition
| RS232 | RS485 | Color | Description |
| +V | +V | Red | 5~12VDC |
| GND | GND | Black | 0V |
| RD | A | Green | Connect to external device TXD or A |
| TD | B | White | Connect to external device RXD or B |
Application
Tips: How does an RS485 digital load cell differ from an RS232 load cell?
RS485 and RS232 are both serial communication protocols used in digital load cells, but they differ in performance, distance, and application:
RS232 (Short-Distance Communication):
- Supports point-to-point communication (one load cell to one device).
- Transmission distance is limited to around 15 meters.
- Commonly used for single-device connections, such as computers or display units.
RS485 (Long-Distance & Multi-Device Communication):
- Supports multi-drop networking (one load cell can communicate with multiple devices).
- Transmission distance extends up to 1200 meters, making it ideal for large-scale industrial applications.
- More resistant to electrical interference, ensuring stable data transmission in noisy environments.
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