Keithley 194A
The Keithley 194A is a high-resolution, programmable digital multimeter designed for precision measurement applications. It features a wide range of functions, including DC voltage, AC voltage, DC current, AC current, and resistance measurements. Known for its accuracy and stability, the 194A is suitable for both laboratory and automated testing environments.
- Model
- Keithley 194A
- Calibration
- Available on request
- Price
- $650
- Status
- In stock
- RFQ ref
- 194A
This unit
The Keithley 194A is a programmable high-resolution digitizer engineered for precision waveform acquisition and multi-function signal analysis. It acquires waveforms with frequency components below 500 kHz using external triggering at sampling rates up to 1 MS/s, with selectable 16-bit resolution at rates to 100 kHz or 8-bit resolution from 100 kHz to 1 MHz. The instrument digitizes signal levels from 10 µV to 200 V across an isolated input, making it suitable for floating or ground-referenced measurements. Its 64 KB memory capacity stores either 32k samples at 16-bit resolution or 64k samples at 8-bit resolution, enabling comprehensive waveform capture for post-acquisition analysis.
Technical Specifications Sampling and Resolution
Externally triggered sampling: up to 1 MS/s
16-bit (4½-digit) resolution at sampling rates to 100 kHz
8-bit resolution at 100 kHz to 1 MHz
Programmable sampling interval: 1.0 µs to 1.0 s with 0.1 µs resolution
Minimum detectable change: 1 part in 32,000 at 100 kHz Input Specifications
Input range: 10 µV to 200 V
Maximum input: 250 V peak, 2×10⁷ V·Hz
Input impedance: 1 MΩ shunted by 60 dB (DC to 1 kHz, 1 kΩ unbalance)
Isolated input - floating signal measurements permitted Memory and Storage
Total capacity: 64 KB
32k samples at 16-bit resolution
64k samples at 8-bit resolution Display and Control
14-digit alphanumeric LED display with function and bus status indicators
Manual or autoranging operation Waveform Analysis Functions
Average, Peak to Peak, Plus Peak, Minus Peak, Standard Deviation, True RMS, Integral
Key Features
IEEE-488 programmability with 90 KB/s binary transfer rate
Analog outputs: 0–10 V full scale (X and Y), 2.44 mV resolution
Z output: 0 V, 5 V, or 15 V selectable
Clock input/output connectors for external synchronization
One-hour warmup to rated accuracy
Typical Applications Transient waveform capture, signal integrity analysis, frequency-domain measurements below 500 kHz, automated test environments requiring programmatic control.
Compatibility & Integration Fully compliant IEEE-488 interface supporting SH1, AH1, T6, TEO, LA, LEO, SR1, RL1, PP0, DC1, DT1, C0, E1 functions. Operates on 105–125 V or 210–250 V selectable, 50/60 Hz.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | below 500 kHz | Voltage / Current Range: 10 µV to 200 V input |
Keithley 194A — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keithley 194A. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
Keithley 194A price
This Keithley 194A is listed at $650. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keithley 194A calibration cost
NIST-traceable calibration for the Keithley 194A 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 →
