Keithley 7164 / 7164-M 20-Channel Scanner Card
Keithley Data Acquisition Systems (DAQ). Voltage: 350V peak between any terminal and earth.
- Model
- Keithley 7164 / 7164-M
- Calibration
- Available on request
- Price
- $550
- Status
- In stock
- RFQ ref
- 7164 / 7164-M
This unit
The Keithley 7164/7164-M is a 20-channel scanner card for integrating with Keithley data acquisition systems and mainframes. It routes multiple signals to a single measurement instrument - such as a multimeter or source meter - enabling efficient automated test setups and data logging. The 7164-M variant employs mercury wetted reed relays for superior contact performance and signal integrity across demanding measurement applications.
Technical Specifications Channel Configuration & Contacts
20 channels in 2-pole Form A configuration
Common guard/shield connection per channel
Mercury wetted reed relays (7164-M)
Contact resistance: less than 1Ω at end of life
Contact potential: less than ±500nV typical per contact; 1µV maximum Relay Signal Ratings
DC: 110V DC, 1A switched, 30VA maximum (resistive load)
AC: 125V AC rms or 175V AC peak, 100kHz maximum, 1A switched, 62.5VA maximum (resistive load)
Contact life: greater than 10⁵ operations at maximum signal level; greater than 10⁸ operations cold switching
Actuation time: 2.5ms maximum on/off Input Characteristics
Connector: Screw terminal, #22 AWG wire
Isolation between any two terminals: greater than 10⁹Ω, less than 75pF
Isolation between any terminal and earth: greater than 10⁹Ω, less than 150pF
Common mode voltage: 350V peak between any terminal and earth
Maximum voltage between any two terminals: 110V DC, 125V AC rms
Key Features
Mercury wetted reed relays deliver low contact potential for precision measurements
Cold switching rated to 10⁸ operations ensures extended operational life
Screw terminal connectors accept #22 AWG conductors for field wiring
Superior isolation characteristics minimize crosstalk in multi-channel measurement configurations
Form A relay configuration provides straightforward two-pole switching architecture
Typical Applications
Multi-channel DC and AC signal routing to digital multimeters
Source meter multiplexing in automated parametric test systems
Data acquisition switching matrices for environmental chamber testing
Precision measurement instrument signal distribution
Compatibility & Integration Designed for Keithley data acquisition systems and mainframes. Verify specific mainframe compatibility based on system requirements. Physical dimensions: 21mm H × 72mm W × 221mm D.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | DC to 100kHz | Voltage / Current Range: 110V DC / 1A, 125V AC rms / 1A, 175V AC peak |
Keithley 7164 / 7164-M — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keithley 7164 / 7164-M. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
Keithley 7164 / 7164-M price
This Keithley 7164 / 7164-M is listed at $550. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keithley 7164 / 7164-M calibration cost
NIST-traceable calibration for the Keithley 7164 / 7164-M 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 →
