BENGBUZZYQ Multi-Channel Load Cell Digital Transmitter 4 Inputs RS485 Modbus RTU Strain Gauge Sensor Converter Module 10-28VDC
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Specifications
- Brand Name
- ZHIZHONGYIQI
- High-concerned chemical
- None
- Origin
- Mainland China
- Output
- Digital Sensor
- Theory
- Resistance Sensor
- Type
- Optical-Electronics Sensor
- is_customized
- Yes
- Use
- Pressure Sensor
- Material
- Polymer
- Power Supply
- 10-28V DC
- Power Consumption
- < 2W
- Operating Current
- Depends on sensors; drive capacity 500 mA
- Operating Temperature
- -40~85°C
- Humidity
- 0-95% RH, non-condensing
- Protection Level
- IP65
- Excitation Voltage
- 5VDC ±3%
- Channels
- 2-4 load cell inputs
- Resolution
- 1/500,000
- Sampling Rates
- 10Hz, 40Hz, 640Hz, 1280Hz
- Communication Interface
- RS485, Modbus RTU, Function Codes 03/06/16
- Baud Rates
- 2400*600000 bps (configurable via DIP or software)
- Addresses
- 1-255, broadcast = 254
- Sensor Drive
- Up to 4 X 350Ω sensors per channel
- ADC Type
- Sigma-Delta
- Isolation & Protection
- Optical isolation, power isolation, surge protection
- Mounting
- DIN rail or fixed mounting
Product Description
Parameter | Specification |
Power Supply | 10–28V DC, <2W |
Operating Current | Depends on connected sensors, max drive 500mA |
Channels | 2–4 load cell inputs |
Sensor Excitation | 5V DC ±3% |
Sensor Drive | Up to 4 × 350Ω sensors per channel |
Input Signal Range | 0 to ±30 mV |
Resolution | 1/500000 |
Sampling Rates | 10Hz, 40Hz, 640Hz, 1280Hz (selectable) |
ADC Type | Sigma-Delta |
Communication | RS485, Modbus RTU, Function Codes 03/06/16 |
Baud Rates | 2400–600000 bps (configurable via DIP or software) |
Slave Address | 1–255, broadcast = 254 |
Isolation & Protection | Optical isolation, power isolation, surge protection |
Operating Temp | –40 to +85°C |
Humidity | 0–95% RH (non-condensing) |
Protection Level | IP65 |
Mounting | DIN rail or fixed mounting |
Weight | ~250g |
Communication Interface
The transmitter provides RS485 communication with standard Modbus RTU protocol, ensuring compatibility with PLCs, DCS, and industrial PCs.
Specifications:
Item | Specification |
Interface | RS485 (2-wire differential) |
Protocol | Modbus RTU |
Supported Function Codes | 03 (Read), 06 (Write Single Register), 16 (Write Multiple Registers) |
Baud Rate Options | 2400, 4800, 9600, 19200, 28800, 38400, 57600, 115200, 128000, 230400, 256000, 460800, 500000, 512000, 600000 bps |
Slave Address (software) | 1–255 (default = 1), broadcast = 254 |
Slave Address (DIP) | 0–15 (DIP switch configuration) |
Default Settings | Baud rate: 115200, Data bits: 8, Stop bit: 1, Parity: None, Address: 1, Byte order: Little-endian (2143) |
RS485 Cabling:
Maximum distance: up to 1200 m at 9600 bps.
For short-distance debugging, ordinary cables are acceptable. For longer runs, use shielded twisted pair cables.
For multi-drop connections, connect a 120Ω termination resistor across A and B at the end of the line.
Indicators & Reset:
P (Power): Always ON when powered.
G (Comm): Blinks during communication (frequency depends on baud rate).
T (TX): Blinks when transmitting.
R (RX): Blinks when receiving.
Reset button: Hold >3s to restore factory defaults (⚠ clears calibration data).
Pros & Cons
Pros
- Supports 2-4 channels with high 1/500,000 resolution and 1280Hz sampling.
- RS485 Modbus RTU for easy integration in industrial setups.
- Wide 10-28VDC power, IP65 protection, and surge isolation.
- Drives up to 4 sensors per channel with optical isolation.
Cons
- Complex setup requires Modbus knowledge and software config.
- Power consumption depends on sensors, up to 500mA drive.
- No included sensors; purchase separately.
- High baud rates may need DIP switch adjustments.
Common Questions
What material is the Multi-Channel Load Cell Transmitter made from?
Polymer material with IP65 protection for industrial use.
What is the size and mounting for this sensor converter?
DIN rail or fixed mounting; compact module for 2-4 channels.
Is this load cell compatible with RS485 Modbus systems?
Yes, supports RS485 Modbus RTU with 2-4 inputs for strain gauges.
How to use this digital transmitter module?
Connect 10-28VDC power, up to 4x350Ω sensors per channel; configurable baud rates and sampling up to 1280Hz.
What is the operating temperature and shipping origin?
-40~85°C range; ships from Mainland China.
Product information last updated on March 30, 2026