ACL-10137-1MM
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- Integrated Cold Junction Compensation (CJC):
Built-in temperature sensor circuit for thermocouple measurement accuracy. The CJC circuit compensates for ambient temperature variations at the connection point, ensuring precise thermal readings.
- Signal Conditioning for Each Channel:
Each analog input channel includes onboard signal conditioning circuitry, allowing for stable and noise-free signal transmission to the data acquisition card.
- Dual Wiring Configurations:
Supports both single-ended and differential input wiring modes, providing flexibility for various measurement setups.
- High-Quality Connectivity:
Equipped with a 37-pin D-sub female connector for direct interface with ADLINK DAQ cards and screw terminals for secure field wiring.
- Compatibility:
Designed for use with multiple ADLINK analog input and multifunction DAQ cards, including:
- PCI-9112
- PCI-9111 Series
- ACL-8312/8316
- ACL-8112 Series
- ACL-8216
- ACL-8126
- Compact and Durable Design:
PCB dimensions of 168 mm × 114 mm, suitable for tabletop or panel mounting using included nylon standoffs.
- Included Accessories:
Supplied with an ACL-10137-1 cable for direct connection to compatible DAQ cards.
- Ease of Installation:
Plug-and-play connection via DB-37 interface and screw terminals simplifies setup and maintenance.
Built-in temperature sensor circuit for thermocouple measurement accuracy. The CJC circuit compensates for ambient temperature variations at the connection point, ensuring precise thermal readings.
- Signal Conditioning for Each Channel:
Each analog input channel includes onboard signal conditioning circuitry, allowing for stable and noise-free signal transmission to the data acquisition card.
- Dual Wiring Configurations:
Supports both single-ended and differential input wiring modes, providing flexibility for various measurement setups.
- High-Quality Connectivity:
Equipped with a 37-pin D-sub female connector for direct interface with ADLINK DAQ cards and screw terminals for secure field wiring.
- Compatibility:
Designed for use with multiple ADLINK analog input and multifunction DAQ cards, including:
- PCI-9112
- PCI-9111 Series
- ACL-8312/8316
- ACL-8112 Series
- ACL-8216
- ACL-8126
- Compact and Durable Design:
PCB dimensions of 168 mm × 114 mm, suitable for tabletop or panel mounting using included nylon standoffs.
- Included Accessories:
Supplied with an ACL-10137-1 cable for direct connection to compatible DAQ cards.
- Ease of Installation:
Plug-and-play connection via DB-37 interface and screw terminals simplifies setup and maintenance.
Comprehensive Product Summary – ADLINK NuDAQ® ACLD-8125 Panel with Cold Junction Compensation
### 1. Product Overview
Product Name: Panel with Cold Junction Compensation
Model: ACLD-8125
Series: NuDAQ® ACLD Series Termination Boards
Article Number: ACLD-8125
Manufacturer: ADLINK Technology Inc.
Manufacturer Address: 9F, No. 166, Jian Yi Road, Chungho City, Taipei 235, Taiwan, R.O.C.
Website: [www.adlinktech.com](http://www.adlinktech.com)
Support Email: service@adlinktech.com
The ADLINK ACLD-8125 is a precision-engineered signal conditioning termination board designed for use with ADLINK’s NuDAQ® data acquisition systems. It integrates a built-in cold junction compensation (CJC) circuit for accurate thermocouple temperature measurements and provides convenient screw terminal connections for analog input channels. The ACLD-8125 serves as an interface between field wiring and ADLINK’s analog input cards, ensuring reliable signal integrity and simplified wiring in laboratory, industrial, and automation environments.
### 2. Key Features
- Integrated Cold Junction Compensation (CJC):
Built-in temperature sensor circuit for thermocouple measurement accuracy. The CJC circuit compensates for ambient temperature variations at the connection point, ensuring precise thermal readings.
- Signal Conditioning for Each Channel:
Each analog input channel includes onboard signal conditioning circuitry, allowing for stable and noise-free signal transmission to the data acquisition card.
- Dual Wiring Configurations:
Supports both single-ended and differential input wiring modes, providing flexibility for various measurement setups.
- High-Quality Connectivity:
Equipped with a 37-pin D-sub female connector for direct interface with ADLINK DAQ cards and screw terminals for secure field wiring.
- Compatibility:
Designed for use with multiple ADLINK analog input and multifunction DAQ cards, including:
- PCI-9112
- PCI-9111 Series
- ACL-8312/8316
- ACL-8112 Series
- ACL-8216
- ACL-8126
- Compact and Durable Design:
PCB dimensions of 168 mm × 114 mm, suitable for tabletop or panel mounting using included nylon standoffs.
- Included Accessories:
Supplied with an ACL-10137-1 cable for direct connection to compatible DAQ cards.
- Ease of Installation:
Plug-and-play connection via DB-37 interface and screw terminals simplifies setup and maintenance.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Model | ACLD-8125 |
| Type | Signal Conditioning Termination Board with Cold Junction Compensation |
| Dimensions | 168 mm (W) × 114 mm (H) |
| Connector Type | 37-pin D-sub female connector |
| Terminal Type | Screw terminal blocks (2×12 + 1×16 configuration) |
| Included Cable | ACL-10137-1 |
| Power Supply | +12 V DC (from DAQ card or external source) |
| CJC Sensor Type | LM335 precision temperature sensor |
| CJC Output Voltage | Approximately 2.98 V at 25°C (298 K) |
| Temperature Conversion | 10 mV per Kelvin (T(K) = T(°C) + 273) |
| Mounting Options | Tabletop or panel mounting with nylon standoffs |
| Material | FR-4 PCB with high-quality copper traces |
| Weight | Approx. 0.3 kg (board only) |
| Operating Environment | 0°C to 50°C, non-condensing humidity |
| Storage Temperature | -20°C to 70°C |
### 4. Functionality
The ACLD-8125 functions as a termination and signal conditioning interface between field sensors and ADLINK’s analog input DAQ cards. It provides a structured connection point for analog signals, ensuring accurate and stable data acquisition.
Working Principle:
- Analog input signals from sensors or transducers are wired to the screw terminals.
- The board routes these signals through conditioning circuits that stabilize and filter the inputs.
- The conditioned signals are transmitted via the 37-pin D-sub connector to the DAQ card.
- For thermocouple inputs, the onboard Cold Junction Compensation (CJC) circuit measures the ambient temperature at the terminal block and provides a reference voltage to correct thermocouple readings.
Use Cases and Applications:
- Temperature measurement using thermocouples (with CJC compensation)
- Analog signal acquisition in laboratory instrumentation
- Industrial process monitoring and control
- Data logging and environmental testing
- Educational and research applications requiring precise analog interfacing
Compatibility:
- Fully compatible with ADLINK’s NuDAQ® series analog input and multifunction cards.
- Supports both ISA and PCI-based DAQ systems.
### 5. Components & Accessories
Included Items:
- ACLD-8125 Termination Board
- ACL-10137-1 37-pin D-sub cable
- Nylon standoffs for mounting
- User’s manual and documentation
Connectors and Terminals:
- CN1 (37-pin D-sub female): Main interface to DAQ card
- CN2A and CN2B: Internal analog input terminal blocks
- CN3: Auxiliary connector for reference and counter signals
Pin Assignments (Summary):
CN1 (Main Connector):
- AIH0–AIH7: Analog input high channels
- AIL8–AIL15: Analog input low channels
- AGND/DGND: Analog and digital grounds
- VREF, EXTREF1/2: Reference voltage inputs
- AO1/AO2: Analog output channels
- CNT0_GATE, CNT0_OUT, CNT0_CLK: Counter/timer signals
- +12V, VCC: Power supply inputs
CN2A / CN2B (Analog Input Terminals):
- Provide direct access to analog input channels (AI0–AI15)
- Alternating AGND terminals for noise reduction and shielding
CN3 (Auxiliary Connector):
- Provides reference, analog output, and counter/timer connections
- Includes VREF, AO1, EXTREF1/2, AGND, DGND, CNT0_CLK, CNT0_OUT, EXT_TRG, and VCC
### 6. Installation & Setup
Installation Steps:
1. Unpack and Inspect:
Verify that the ACLD-8125 board, cable, and accessories are present and undamaged.
2. Mounting:
Install the board on a tabletop or panel using the provided nylon standoffs.
3. Connection to DAQ Card:
Use the ACL-10137-1 cable to connect the DB-37 connector on the ACLD-8125 to the corresponding port on the DAQ card.
4. Wiring Sensors:
Connect analog input signals to the screw terminals according to the desired configuration (single-ended or differential).
5. Configure Jumpers for CJC:
Set jumpers JP1 and JP2 to select the desired cold junction compensation mode:
- JP1: 1–2, JP2: 1–2 → Fully differential with CJC
- JP1: 1–2, JP2: 2–3 → Single-ended with CJC
- JP1: 2–3, JP2: 2–3 → CJC disabled
6. Power Supply:
Ensure +12V DC is available from the DAQ card or external source.
7. Software Configuration:
Configure the DAQ card software to recognize the connected channels and apply CJC correction if thermocouples are used.
Mounting Options:
- Tabletop installation for laboratory use
- Panel mounting for industrial enclosures
### 7. Performance & Capabilities
Signal Conditioning:
- Each analog input channel includes resistors and capacitors for filtering and stabilization.
- Supports both single-ended and differential measurement modes.
Cold Junction Compensation (CJC):
- Utilizes LM335 temperature sensor for precise ambient temperature measurement.
- Provides a linear output of 10 mV/K.
- Example: At 25°C (298 K), output ≈ 2.98 V.
Measurement Example:
- When connected to an ACL-8112 DAQ card:
- Set ACLD-8125 JP1: 1–2, JP2: 2–3
- Set ACL-8112 JP9: ±5V range
- Read channel 0 voltage for CJC output
- Convert voltage to temperature using:
- V(mV) = T(K) × 10 mV/K
- T(°C) = (V/10 mV) – 273
Electrical Performance:
- High signal integrity with minimal noise coupling
- Stable reference voltage distribution
- Low thermal drift due to precision components
Limitations:
- Designed for low-voltage analog signals (typical ±10V range)
- Not intended for direct high-voltage or high-current inputs
- CJC accuracy depends on proper jumper configuration and calibration
### 8. Standards & Compliance
Certifications and Compliance:
- Designed and manufactured by ADLINK Technology Inc. under ISO-certified quality systems.
- Complies with CE and FCC standards for electromagnetic compatibility (EMC).
- RoHS-compliant materials and lead-free soldering processes.
- Meets industrial-grade reliability and safety standards for data acquisition hardware.
Industry Standards Supported:
- IEEE analog signal conventions for single-ended and differential inputs
- Standard DB-37 pinout for DAQ interfacing
- Compatible with ADLINK’s NuDAQ® and PCI DAQ hardware architecture
### 9. Additional Information
Warranty:
- Standard two-year limited warranty (one year in China) from the date of shipment.
- Covers defects in materials and workmanship under normal use.
- Excludes damage from misuse, unauthorized repair, or environmental factors.
Support and Service:
- Technical support available via email and online resources:
- General Support: service@adlinktech.com
- NuDAQ Technical Support: nudaq@adlink.com.tw
- RMA (Return Material Authorization) process available through [ADLINK RMA Portal](http://rma.adlinktech.com/policy)
Maintenance:
- Periodic inspection of terminal connections recommended.
- Keep board free from dust and moisture.
- Avoid exposure to high humidity or corrosive environments.
Software and Firmware Updates:
- Compatible with ADLINK’s DAQ software drivers and SDKs.
- Updates and documentation available from ADLINK’s official website.
Packaging and Storage:
- Supplied in anti-static packaging.
- Store in a dry, temperature-controlled environment when not in use.
### Summary
The ADLINK NuDAQ® ACLD-8125 is a robust and versatile termination board engineered for precision analog signal interfacing and temperature measurement applications. Its integrated Cold Junction Compensation (CJC) circuit ensures accurate thermocouple readings, while its signal conditioning capabilities enhance measurement stability and noise immunity. With flexible wiring options, comprehensive connectivity, and compatibility with a wide range of ADLINK DAQ cards, the ACLD-8125 is an essential component for laboratory instrumentation, industrial automation, and data acquisition systems requiring high accuracy and reliability.
Keywords for Technical Search Optimization:
ADLINK ACLD-8125, NuDAQ termination board, cold junction compensation, CJC panel, analog input termination, DB-37 connector, signal conditioning board, thermocouple interface, ACL-8112 compatible, PCI-9112 interface, ADLINK DAQ accessory, differential analog input, single-ended input, LM335 sensor, 37-pin D-sub, industrial data acquisition, temperature measurement board.
### 1. Product Overview
Product Name: Panel with Cold Junction Compensation
Model: ACLD-8125
Series: NuDAQ® ACLD Series Termination Boards
Article Number: ACLD-8125
Manufacturer: ADLINK Technology Inc.
Manufacturer Address: 9F, No. 166, Jian Yi Road, Chungho City, Taipei 235, Taiwan, R.O.C.
Website: [www.adlinktech.com](http://www.adlinktech.com)
Support Email: service@adlinktech.com
The ADLINK ACLD-8125 is a precision-engineered signal conditioning termination board designed for use with ADLINK’s NuDAQ® data acquisition systems. It integrates a built-in cold junction compensation (CJC) circuit for accurate thermocouple temperature measurements and provides convenient screw terminal connections for analog input channels. The ACLD-8125 serves as an interface between field wiring and ADLINK’s analog input cards, ensuring reliable signal integrity and simplified wiring in laboratory, industrial, and automation environments.
### 2. Key Features
- Integrated Cold Junction Compensation (CJC):
Built-in temperature sensor circuit for thermocouple measurement accuracy. The CJC circuit compensates for ambient temperature variations at the connection point, ensuring precise thermal readings.
- Signal Conditioning for Each Channel:
Each analog input channel includes onboard signal conditioning circuitry, allowing for stable and noise-free signal transmission to the data acquisition card.
- Dual Wiring Configurations:
Supports both single-ended and differential input wiring modes, providing flexibility for various measurement setups.
- High-Quality Connectivity:
Equipped with a 37-pin D-sub female connector for direct interface with ADLINK DAQ cards and screw terminals for secure field wiring.
- Compatibility:
Designed for use with multiple ADLINK analog input and multifunction DAQ cards, including:
- PCI-9112
- PCI-9111 Series
- ACL-8312/8316
- ACL-8112 Series
- ACL-8216
- ACL-8126
- Compact and Durable Design:
PCB dimensions of 168 mm × 114 mm, suitable for tabletop or panel mounting using included nylon standoffs.
- Included Accessories:
Supplied with an ACL-10137-1 cable for direct connection to compatible DAQ cards.
- Ease of Installation:
Plug-and-play connection via DB-37 interface and screw terminals simplifies setup and maintenance.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Model | ACLD-8125 |
| Type | Signal Conditioning Termination Board with Cold Junction Compensation |
| Dimensions | 168 mm (W) × 114 mm (H) |
| Connector Type | 37-pin D-sub female connector |
| Terminal Type | Screw terminal blocks (2×12 + 1×16 configuration) |
| Included Cable | ACL-10137-1 |
| Power Supply | +12 V DC (from DAQ card or external source) |
| CJC Sensor Type | LM335 precision temperature sensor |
| CJC Output Voltage | Approximately 2.98 V at 25°C (298 K) |
| Temperature Conversion | 10 mV per Kelvin (T(K) = T(°C) + 273) |
| Mounting Options | Tabletop or panel mounting with nylon standoffs |
| Material | FR-4 PCB with high-quality copper traces |
| Weight | Approx. 0.3 kg (board only) |
| Operating Environment | 0°C to 50°C, non-condensing humidity |
| Storage Temperature | -20°C to 70°C |
### 4. Functionality
The ACLD-8125 functions as a termination and signal conditioning interface between field sensors and ADLINK’s analog input DAQ cards. It provides a structured connection point for analog signals, ensuring accurate and stable data acquisition.
Working Principle:
- Analog input signals from sensors or transducers are wired to the screw terminals.
- The board routes these signals through conditioning circuits that stabilize and filter the inputs.
- The conditioned signals are transmitted via the 37-pin D-sub connector to the DAQ card.
- For thermocouple inputs, the onboard Cold Junction Compensation (CJC) circuit measures the ambient temperature at the terminal block and provides a reference voltage to correct thermocouple readings.
Use Cases and Applications:
- Temperature measurement using thermocouples (with CJC compensation)
- Analog signal acquisition in laboratory instrumentation
- Industrial process monitoring and control
- Data logging and environmental testing
- Educational and research applications requiring precise analog interfacing
Compatibility:
- Fully compatible with ADLINK’s NuDAQ® series analog input and multifunction cards.
- Supports both ISA and PCI-based DAQ systems.
### 5. Components & Accessories
Included Items:
- ACLD-8125 Termination Board
- ACL-10137-1 37-pin D-sub cable
- Nylon standoffs for mounting
- User’s manual and documentation
Connectors and Terminals:
- CN1 (37-pin D-sub female): Main interface to DAQ card
- CN2A and CN2B: Internal analog input terminal blocks
- CN3: Auxiliary connector for reference and counter signals
Pin Assignments (Summary):
CN1 (Main Connector):
- AIH0–AIH7: Analog input high channels
- AIL8–AIL15: Analog input low channels
- AGND/DGND: Analog and digital grounds
- VREF, EXTREF1/2: Reference voltage inputs
- AO1/AO2: Analog output channels
- CNT0_GATE, CNT0_OUT, CNT0_CLK: Counter/timer signals
- +12V, VCC: Power supply inputs
CN2A / CN2B (Analog Input Terminals):
- Provide direct access to analog input channels (AI0–AI15)
- Alternating AGND terminals for noise reduction and shielding
CN3 (Auxiliary Connector):
- Provides reference, analog output, and counter/timer connections
- Includes VREF, AO1, EXTREF1/2, AGND, DGND, CNT0_CLK, CNT0_OUT, EXT_TRG, and VCC
### 6. Installation & Setup
Installation Steps:
1. Unpack and Inspect:
Verify that the ACLD-8125 board, cable, and accessories are present and undamaged.
2. Mounting:
Install the board on a tabletop or panel using the provided nylon standoffs.
3. Connection to DAQ Card:
Use the ACL-10137-1 cable to connect the DB-37 connector on the ACLD-8125 to the corresponding port on the DAQ card.
4. Wiring Sensors:
Connect analog input signals to the screw terminals according to the desired configuration (single-ended or differential).
5. Configure Jumpers for CJC:
Set jumpers JP1 and JP2 to select the desired cold junction compensation mode:
- JP1: 1–2, JP2: 1–2 → Fully differential with CJC
- JP1: 1–2, JP2: 2–3 → Single-ended with CJC
- JP1: 2–3, JP2: 2–3 → CJC disabled
6. Power Supply:
Ensure +12V DC is available from the DAQ card or external source.
7. Software Configuration:
Configure the DAQ card software to recognize the connected channels and apply CJC correction if thermocouples are used.
Mounting Options:
- Tabletop installation for laboratory use
- Panel mounting for industrial enclosures
### 7. Performance & Capabilities
Signal Conditioning:
- Each analog input channel includes resistors and capacitors for filtering and stabilization.
- Supports both single-ended and differential measurement modes.
Cold Junction Compensation (CJC):
- Utilizes LM335 temperature sensor for precise ambient temperature measurement.
- Provides a linear output of 10 mV/K.
- Example: At 25°C (298 K), output ≈ 2.98 V.
Measurement Example:
- When connected to an ACL-8112 DAQ card:
- Set ACLD-8125 JP1: 1–2, JP2: 2–3
- Set ACL-8112 JP9: ±5V range
- Read channel 0 voltage for CJC output
- Convert voltage to temperature using:
- V(mV) = T(K) × 10 mV/K
- T(°C) = (V/10 mV) – 273
Electrical Performance:
- High signal integrity with minimal noise coupling
- Stable reference voltage distribution
- Low thermal drift due to precision components
Limitations:
- Designed for low-voltage analog signals (typical ±10V range)
- Not intended for direct high-voltage or high-current inputs
- CJC accuracy depends on proper jumper configuration and calibration
### 8. Standards & Compliance
Certifications and Compliance:
- Designed and manufactured by ADLINK Technology Inc. under ISO-certified quality systems.
- Complies with CE and FCC standards for electromagnetic compatibility (EMC).
- RoHS-compliant materials and lead-free soldering processes.
- Meets industrial-grade reliability and safety standards for data acquisition hardware.
Industry Standards Supported:
- IEEE analog signal conventions for single-ended and differential inputs
- Standard DB-37 pinout for DAQ interfacing
- Compatible with ADLINK’s NuDAQ® and PCI DAQ hardware architecture
### 9. Additional Information
Warranty:
- Standard two-year limited warranty (one year in China) from the date of shipment.
- Covers defects in materials and workmanship under normal use.
- Excludes damage from misuse, unauthorized repair, or environmental factors.
Support and Service:
- Technical support available via email and online resources:
- General Support: service@adlinktech.com
- NuDAQ Technical Support: nudaq@adlink.com.tw
- RMA (Return Material Authorization) process available through [ADLINK RMA Portal](http://rma.adlinktech.com/policy)
Maintenance:
- Periodic inspection of terminal connections recommended.
- Keep board free from dust and moisture.
- Avoid exposure to high humidity or corrosive environments.
Software and Firmware Updates:
- Compatible with ADLINK’s DAQ software drivers and SDKs.
- Updates and documentation available from ADLINK’s official website.
Packaging and Storage:
- Supplied in anti-static packaging.
- Store in a dry, temperature-controlled environment when not in use.
### Summary
The ADLINK NuDAQ® ACLD-8125 is a robust and versatile termination board engineered for precision analog signal interfacing and temperature measurement applications. Its integrated Cold Junction Compensation (CJC) circuit ensures accurate thermocouple readings, while its signal conditioning capabilities enhance measurement stability and noise immunity. With flexible wiring options, comprehensive connectivity, and compatibility with a wide range of ADLINK DAQ cards, the ACLD-8125 is an essential component for laboratory instrumentation, industrial automation, and data acquisition systems requiring high accuracy and reliability.
Keywords for Technical Search Optimization:
ADLINK ACLD-8125, NuDAQ termination board, cold junction compensation, CJC panel, analog input termination, DB-37 connector, signal conditioning board, thermocouple interface, ACL-8112 compatible, PCI-9112 interface, ADLINK DAQ accessory, differential analog input, single-ended input, LM335 sensor, 37-pin D-sub, industrial data acquisition, temperature measurement board.
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ACLD Series.PDF
Manual
- ACL-10137-1MM - DB37 cable 1m male/male
- ACL-10137-2MM - DB37 cable 2m male/male
