Keysight / Agilent / HP 34970-66502 Front Panel Display Board
This is a replacement front panel display board for the Keysight, Agilent, or HP 34970A/34972A data acquisition/data logger switch units. It is essential for units with damaged displays.
- Model
- Keysight / Agilent / HP 34970-66502
- Calibration
- Available on request
- Price · starting from
- $225
- Status
- In stock
- RFQ ref
- 34970-66502
This unit
The Keysight/Agilent/HP 34970-66502 is a front panel display board assembly (A2 circuit assembly) that restores the visual interface and operator control of the 34970A and 34972A Data Acquisition/Switch Units. This replacement component houses the vacuum fluorescent display control, high-voltage drivers, and keyboard scanning circuits essential to full instrument operation. The display board communicates with main logic circuits via a two-wire bi-directional serial interface, managing real-time measurement readout, alarm limits, and system status.
Technical Specifications
Display Technology: Vacuum fluorescent with segment control via +18 V (on) and −18 V (off), cathode bias at −11 V
Logic Voltage Levels: −13 V (logic 1), −18 V (logic 0); −13 V regulated from −18 V supply
Interface: Two-wire bi-directional serial communication to main logic circuits
Keyboard Scanning: Integrated scanning circuits for user input handling
Compatibility: Designed for Keysight 34970A and 34972A units exclusively
Key Features
Displays setup parameters, measured values, and alarm thresholds
Keyboard interface for manual instrument configuration and control
Vacuum fluorescent display with dedicated high-voltage driver circuitry
Direct integration with 6½ digit (22-bit) DMM architecture
Serial protocol for bi-directional data exchange with system controller
Typical Applications
Replacement of failed or damaged front panel assemblies in field-deployed 34970A/34972A systems
Restoration of display and control functionality in data acquisition installations
Service repair of units with non-functional vacuum fluorescent displays
Compatibility & Integration The 34970-66502 integrates with 34970A units equipped with GPIB and RS-232 interfaces, and 34972A units featuring LAN, USB, graphical web interface, and USB memory port connectivity. The parent instruments support scanning rates to 250 channels/second across temperature, DC/AC voltage/current, resistance, frequency, and period measurements. System power requirements are 100/120/220/240 Vac ±10%; 45–66 Hz operation.
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | '+18 V |
Keysight / Agilent / HP 34970-66502 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keysight / Agilent / HP 34970-66502. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
Keysight / Agilent / HP 34970-66502 price
This Keysight / Agilent / HP 34970-66502 is listed at $225. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keysight / Agilent / HP 34970-66502 calibration cost
NIST-traceable calibration for the Keysight / Agilent / HP 34970-66502 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 →
