Agilent/Keysight 44425A
Agilent / Keysight Digital Input Board. Channels: Up to 16, Channels: Up to 8 (within the 16-channel set).
- Model
- Agilent / Keysight 44425A
- Calibration
- Available on request
- Price
- $1,250
- Status
- In stock
- RFQ ref
- 44425A
This unit
The Agilent/Keysight 44425A is a 16-channel isolated digital input/interrupt assembly for the HP 3497A Data Acquisition/Control Unit. It operates in two distinct modes: digital input mode accepts up to 16 digital inputs for monitoring limit switches, position indicators, and digital data buses; interrupt mode monitors up to 8 inputs (bits 0–7) and generates interrupt signals to the controller upon specified system conditions. This dual-mode architecture enables both continuous signal monitoring and event-driven program control, making it suitable for immediate reaction to level changes and transient signals.
Technical Specifications
- Digital Input Channels: Up to 16
- Interrupt Channels: Up to 8 (within the 16-channel set)
- Operating Modes: Digital Input Mode and Interrupt Mode
- System Platform: HP 3497A Data Acquisition/Control Unit
Key Features
- Isolated digital input architecture eliminates common-mode coupling issues in multi-channel sensing applications
- Interrupt-driven operation supports time-critical monitoring without continuous polling
- Configurable input allocation allows partitioning of channels between standard monitoring and interrupt functions
- Digital bus monitoring capability for complex signal validation tasks
Typical Applications
- Industrial automation and machinery status monitoring
- Limit switch and position indicator sensing
- Event-driven system control with pre-programmed responses
- Digital logic prototyping and validation
- Expanding digital input capacity of existing data acquisition systems
Compatibility & Integration The 44425A integrates directly into the HP 3497A mainframe. When paired with an Actuator/Digital Output Assembly (such as Option 110), it forms an independent digital input/output port, enabling bidirectional digital control within test and measurement systems.
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | 12 Vdc, 24 Vdc input |
Agilent / Keysight 44425A — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 44425A. Calibration covers per-channel threshold accuracy, input leakage current, logic level high/low margins, and signal timing verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Agilent / Keysight 44425A faults: ESD-damaged input protection, failed driver ICs, connector pin damage. Most failures involve ESD-damaged input protection circuitry, failed logic driver ICs, or mechanical connector pin damage. Board-level component replacement is standard practice.
Agilent / Keysight 44425A price
This Agilent / Keysight 44425A is listed at $1,250. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent / Keysight 44425A calibration cost
NIST-traceable calibration for the Agilent / Keysight 44425A is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers per-channel threshold accuracy, input leakage current, logic level high/low margins, and signal timing verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →
