Loadcell Amplifier - ±10V
Bipolar Load Cell Amplifier ±10V AC-LD-B10
The AC-LD-B10 (UC-LD-±10V) is an industrial bipolar strain gauge load cell signal conditioner engineered to convert bidirectional bridge sensor outputs into a calibrated -10V to +10V DC (\(\pm 10\text{V}\)) analog voltage signal. Specially designed for bidirectional force measurement—such as tension and compression testing, push-pull dynamics, and bidirectional torque—it integrates a regulated sensor excitation supply, front-panel multi-turn Zero and Span calibration potentiometers, and an ultra-fast response time of less than 1 ms. It delivers precise, linear signal conversion directly to industrial PLCs, PACs, and high-speed data acquisition systems.
Key Features
- Bidirectional full-bridge load cell input for tension/compression sensing
- Built-in precision regulated bridge excitation supply
- Calibrated ±10V DC bipolar linear analog output (< 0.5% ripple noise)
- Ultra-fast response time (< 1 ms) for dynamic material and torque testing
- Front-panel multi-turn Zero and Span calibration potentiometers
- Continuous output short-circuit and input reverse polarity protection
- ±15 kV ESD protection across all signal and power terminals
- 24V DC industrial power supply input (18V to 30V DC)
- 35 mm DIN rail and wall mountable housing
- Dimensions: 110 mm × 50 mm × 55 mm
Ordering Information
| Product Code | Description |
|---|---|
| AC-LD-B10 | Bipolar Load Cell Amplifier ±10V (Bidirectional Tension/Compression, DIN Rail / Wall Mount) |
| AC-LD-10 | Load Cell Amplifier 0–10V (24V DC, DIN Rail / Wall Mount) |
| AC-LD-20mA | Load Cell Amplifier 4–20mA / 0–20mA (1.1k \(\Omega\) Load, 24V DC) |
| MIO-1LD | Loadcell to Modbus RTU RS485 Transmitter |
| USS10V24V-D | Voltage Source Simulator 0-10V with Display |
| SPD-24V-DC | Surge Protection Device 24V DC |
Applications
- Bidirectional Tension & Compression Testing: Measuring both tensile and compressive loads on universal testing machines and load frames.
- Push-Pull Force Measurement: Real-time force verification in automated insertion, crimping, and assembly equipment.
- Bidirectional Torque & Shaft Sensing: Amplifying torque transducer signals rotating in clockwise and counter-clockwise directions.
- Dynamic Material Testing & Impact Analysis: Sub-millisecond response enables high-speed capture of sudden shock and cyclic strain.
- Industrial Automation & Robotics: Providing balanced bidirectional force feedback for robotic grippers and automated actuators.
Specifications
| Parameter | Value |
|---|---|
| Mounting Type | 35 mm DIN Rail & Wall Mounting |
| Dimensions | 110 mm x 50 mm x 55 mm (L x W x H) |
| Weight | 100 g |
| Enclosure Material | Industrial Grade ABS |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -40 °C to +85 °C |
| Relative Humidity | 5% to 95% RH (non-condensing) |
Electrical Specifications
| Parameter | Specification |
|---|---|
| Power Supply Voltage | 24V DC |
| Operating Current | 200 mA @ 24V DC |
| Sensor Input Type | Full-bridge strain gauge load cell with excitation source (unidirectional & bidirectional) |
| Sensor Excitation Output | Integrated precision excitation supply (EX+, EX-) |
| Output Signal Range | -10.00 V to +10.00 V DC (\(\pm 10\text{V}\)) |
| Accuracy | < \(\pm 1\%\) of Full Scale @ 25 °C ambient temperature |
| Output Ripple Noise | < 0.5% of Full Scale |
| Response Time | < 1 ms (< 1 milliSec) |
| Output Short Circuit Protection | 20 mA @ 10V continuous limiting |
| Reverse Polarity Protection | Integrated diode on 24V DC input |
| ESD Protection | \(\pm 15\text{kV}\) Air / HBM, Contact discharge across all I/O pins |
Calibration Procedure
The front-panel multi-turn trimpots allow precision field calibration:
- Zero Offset Calibration:
- Install the bidirectional load cell sensor in its mechanical fixture with zero net load applied (tare condition).
- Measure the output voltage between terminals
OUT +andOUT -using a calibrated digital multimeter. - Adjust the front ZERO potentiometer until the output reads \(\approx 0.00\text{ V}\).
- Span Calibration:
- Apply a known certified reference load (in positive tension or compression) corresponding to full scale.
- Adjust the front SPAN potentiometer until the output reads \(\approx +10.00\text{ V}\) (or proportional positive voltage).
- Bidirectional Verification:
- Apply reverse load (e.g. compression if tension was calibrated, or vice-versa) and verify negative voltage response down to \(-10.00\text{ V}\).
- Remove load and verify that the output cleanly returns to \(0.00\text{ V}\).
Mechanical Dimensions
Terminal Details & Port Pinouts
Loadcell Sensor & Power Connections
| Terminal Block | Pin | Label | Signal | Description |
|---|---|---|---|---|
| Loadcell Terminal | 1 | EX+ | Excitation (+) | Precision positive excitation voltage to load cell |
| (Top 5-Pin Block) | 2 | S+ | Signal (+) | Positive differential signal input from load cell |
| 3 | SLD | Shield | Cable shield connection (Earth ground) | |
| 4 | S- | Signal (-) | Negative differential signal input from load cell | |
| 5 | EX- | Excitation (-) | Negative excitation return to load cell | |
| DC Power | 1 | V+ | Power Input | +24V DC Operating Power Supply |
| (Bottom Left) | 2 | V- | Power Ground | 0V Power Ground Return |
| ±10V Output | 1 | OUT + | Voltage Out (+) | Calibrated Bipolar -10V to +10V DC Analog Output |
| (Bottom Right) | 2 | OUT - | Voltage Out (-) | Analog Signal Ground Return |
LED Indications and Diagnostics
| LED | Color | Status | Description |
|---|---|---|---|
| PWR | Green | ON | Operating power connected and bridge excitation active |
Revision History
| Revision | Date | Description of Change |
|---|---|---|
| Rev 1.0 | 2026-09-09 | Initial datasheet release |
Get the latest version of this datasheet : click here..
Support
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Email: info@veawe.io