Agilent/Keysight 3421A
The Agilent/Keysight 3421A is a data acquisition/switch unit, designed for automated test and measurement applications. It features multiple channels for voltage, current, and resistance measurements, and offers versatile switching capabilities to connect various instruments and devices. This unit is ideal for applications requiring automated data collection and signal routing.
- Model
- Agilent / Keysight 3421A
- Calibration
- Available on request
- Price
- $1,250
- Status
- In stock
- RFQ ref
- 3421A
This unit
The Agilent/Keysight 3421A is a programmable data acquisition and control unit that integrates a 5½ digit voltmeter, 10 kHz counter, and HP-IL controller interface in a single mainframe. The system accommodates up to three optional assemblies, providing flexible configuration for automated test, measurement, and process control applications.
Technical Specifications
Measurement Capabilities:- 5½ digit voltmeter resolution
- 10 kHz counter
- DC and AC voltage measurement
- 2-wire and 4-wire resistance measurement
- Frequency measurement to 10 kHz
- Temperature measurement with thermocouple compensation (T-type) Channel Scanning:
- 30 differential analog channels
- 56 single-ended analog channels Data Storage: 30 readings Power Options:
- AC line powered
- Battery-powered operation with latching relays for uninterruptible supply
- Optional 12V battery for automotive environments Interface:
- HP-IL controller (standard)
- Optional HP-IB interface Environmental: Operating humidity less than 85% relative humidity at 30°C
Key Features The 3421A supports three optional assemblies. The 10-channel multiplexing assembly (44462A) provides signal input with built-in temperature reference junction and two channels configurable as actuators for motor and alarm control. The 8-bit digital I/O assembly (44465A) supplies 8-bit input and output ports for switch monitoring and low-voltage actuation with individual bit or word control. A breadboard assembly enables custom circuit design and direct 8-bit microprocessor communication. Programmable control functions support process monitoring and automated operation. Temperature conversion for T-type thermocouples is compensated on-board, eliminating external reference requirements.
Typical Applications Automated test systems, process control, environmental monitoring, multichannel data acquisition, and equipment testing requiring precise measurement with remote programmability.
Compatibility & Integration Operates with HP computers (HP-85), HP handheld calculators (HP-41C/CV), and HP-IB compatible controllers. Data Acquisition Pac software available for enhanced logging and analysis.
Agilent / Keysight 3421A — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 3421A. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
Agilent / Keysight 3421A price
This Agilent / Keysight 3421A is listed at $1,250. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent / Keysight 3421A calibration cost
NIST-traceable calibration for the Agilent / Keysight 3421A is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →
