Keithley 193A System Digital Multimeter
Keithley Laboratory Measurement Instruments. Voltage: 100 nV to 1000 V, Current: 1 nA to 2 A (with 1931 Current option), Bandwidth: Typically 500 kHz (3 dB).
- Model
- Keithley 193A
- Calibration
- Available on request
- Price
- $570
- Status
- In stock
- RFQ ref
- 193A
This unit
The Keithley 193A System Digital Multimeter is a instrument for precision measurement and automated testing. It delivers 6½-digit resolution across DC and AC voltage, current, resistance, and temperature measurement functions. The 193A integrates IEEE-488 programmability for direct integration into automated test systems, internal data storage for up to 500 readings, and configurable digital filtering to optimize measurement stability across demanding R&D, calibration, and manufacturing workflows.
Technical Specifications Measurement Ranges
DC Voltage: 100 nV to 1000 V
AC Voltage (TRMS): 1 µV to 700 V (with 1930 True RMS ACV option)
DC Current: 1 nA to 2 A (with 1931 Current option)
AC Current (TRMS): 1 nA to 2 A (with 1930 and 1931 options installed)
Resistance (4-Wire): 200 Ω to 200 MΩ
Temperature: RTD −100°C to 630°C; Thermocouple types J, K, T, E, R, S, B via IEEE-488
dB measurements available
TRMS AC + DC measurements supported Performance
Display: 14-character alphanumeric LED, ±2,200,000 counts
A/D Converter: Greater than ±1,999,999 count range
Measurement Rate: Up to 1000 readings per second (internal memory, filter and multiplex off)
AC Voltage Bandwidth: Typically 500 kHz (3 dB)
Key Features
Digital Filter: Weighted average, settable 1 to 99 readings via front panel or bus
Zero Function: Offset cancellation and baseline establishment; programmable locally or over IEEE-488
Internal Buffer: Stores up to 500 readings
Digital Calibration: Accessible from front panel or IEEE-488 bus
User-Programmable Defaults: Configure any measurement setup as power-up state
Translator Software: Define custom command words for IEEE-488 operation
Compatibility & Integration
IEEE-488 Interface: Full programmability and remote control
Power: 105–125 V or 210–250 V, 50–60 Hz, 40 VA
Optional voltage ranges: 90–110 V or 180–220 V
Available Options: 1930 True RMS ACV, 1931 Current module, CAL calibration
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | 50–60 Hz, DC Voltage: 100 nV to 1000 V |
| AC Voltage | 1 µV to 700 V |
| DC Current | 1 nA to 2 A |
| AC Current | 1 nA to 2 A |
| Power | 105–125 V or 210–250 V |
Keithley 193A — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keithley 193A. Calibration covers DC voltage accuracy at all ranges, AC voltage (True RMS) accuracy at 50 Hz, 1 kHz, and 10 kHz, DC current accuracy, resistance accuracy at all decade ranges, frequency accuracy, and diode test voltage. Fluke 87V and 289 also include capacitance and temperature calibration.. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Keithley 193A faults: blown input fuse, worn input jacks, display segment failure, relay contact wear on bench DMMs. Common faults include worn input jacks (banana socket contact wear on the mA and COM terminals), blown input fuses (especially the 440 mA HRC fuse), and display segment failures. Keithley 2000/2001/2002 bench DMMs commonly develop relay contact wear affecting resistance accuracy after extended service.
Keithley 193A price
This Keithley 193A is listed at $570. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keithley 193A calibration cost
NIST-traceable calibration for the Keithley 193A 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 DC voltage accuracy at all ranges, AC voltage (True RMS) accuracy at 50 Hz, 1 kHz, and 10 kHz, DC current accuracy, resistance accuracy at all decade ranges, frequency accuracy, and diode test voltage. Fluke 87V and 289 also include capacitance and temperature calibration.. Turnaround is 1 to 3 business days after receipt. See full calibration details →
