Keysight / Agilent / HP E3243A Microphone/Voltage Breakout Box
The Keysight E3243A Microphone/Voltage Breakout Box is a versatile accessory designed for use with Keysight data acquisition systems. It allows easy connection of microphones and voltage signals, providing a convenient interface for audio and general-purpose voltage measurements. This breakout box simplifies setup and ensures accurate signal routing for various testing applications.
- Model
- Agilent E3243A
- Calibration
- Available on request
- Price
- $950
- RFQ ref
- E3243A
This unit
The Keysight/Agilent/HP E3243A Microphone/Voltage Breakout Box is a four-channel signal conditioning accessory that interfaces microphones, voltage signals, and IEPE transducers with the E1432A and E1433A VXI modules. The unit consolidates multiple transducer input types - including 7-pin LEMO connectors for microphones and female BNC connectors for voltage and IEPE sources - into a single interface, eliminating the need for separate conditioning equipment. Each channel incorporates programmable signal conditioning with selectable microphone gain, polarization voltage control (0 V or 200 V DC), and switchable 4 mA constant current supply for IEPE accelerometers. Buffered monitor outputs on each channel deliver up to 5 V peak with 1 kΩ output impedance, enabling real-time signal observation. The E3243A connects to the VXI module via a 2-meter cable terminated with Amp connectors, with an optional 20-meter extension available.
Technical Specifications
Input Channels: 4
Input Connectors: 7-pin LEMO (microphones), female BNC (voltage/IEPE)
Output: Single 26-pin Amp 750823-1 connector to VXI module
Monitor Output: One female BNC per channel, buffered, 5 V peak maximum, 1 kΩ output impedance
Polarization Voltage (Microphone): Programmable 0 V or 200 V DC
IEPE Power Supply: 4 mA constant current, software switchable with indicator light
Microphone Input: AC-coupled with programmable gain settings; low-frequency coupling to minimize phase errors
Float/Ground Control: Program-selectable per channel for differential or single-ended operation
Input Noise: Less than 20 nV/√Hz (referenced to input, 20 Hz to 88 kHz, 50 Ω termination)
A-Weighted Noise Floor: Less than 8 dB SPL with 50 mV/Pa microphone
Channel-to-Channel Crosstalk: Less than −80 dBfs at 20 kHz (50 Ω termination)
Frequency Response: 20 Hz to 88 kHz
Cable: 2-meter Amp 750833-1 terminated cable included; 20-meter extension available (Option AFL)
Key Features
Integrated conditioning for acoustic and mechanical measurements
Microphone pre-amplifier with three programmable gain levels
Independent channel control for polarization, IEPE power, and input impedance
Low-noise design suitable for low-level microphone acquisition
High channel isolation (−80 dBfs) for multi-channel recording
Typical Applications
Acoustic and vibration analysis
Audio signal acquisition
General-purpose voltage measurement with transducers
IEPE accelerometer data collection
Compatibility & Integration Designed exclusively for Keysight E1432A and E1433A VXI modules.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 20 Hz to 88 kHz | Voltage / Current Range: 0 V or 200 V DC (polarization) |
Agilent E3243A — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent E3243A. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
Agilent E3243A price
This Agilent E3243A is listed at $950. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent E3243A calibration cost
NIST-traceable calibration for the Agilent E3243A 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 →
