Keithley
Keithley 7700
Differential Multiplexer Module, 20 Channel, 50 MHz
20 two-wire channels (or 10 four-wire channels) Number of Channels
2-pole or 4-pole multiplexer switching Multiplexer Configuration
Up to 300V DC/AC Voltage Measurement Range
Supports current measurements via external shunt Current Measurement
J, K, T, E, R, S, B, N thermocouple types Thermocouple Types Supported

| Attribute | Value |
|---|---|
| Number of Channels | 20 two-wire channels (or 10 four-wire channels) |
| Multiplexer Configuration | 2-pole or 4-pole multiplexer switching |
| Voltage Measurement Range | Up to 300V DC/AC |
| Current Measurement | Supports current measurements via external shunt |
| Thermocouple Types Supported | J, K, T, E, R, S, B, N thermocouple types |
| Resistance Measurement | 2-wire and 4-wire resistance measurements supported |
| Compatible Mainframe | Keithley 2700, 2701, and 2750 multimeter/data acquisition systems |
| Relay Type | Electromechanical relays |
| Relay Life Expectancy | 100,000 operations (typical) |
| Maximum Signal Level | 300V, 1A maximum switching |
Keithley 7700 Options:
- 7700 - 7700-3Y-EW - 1-year factory warranty extended to 3 years from date of shipment
| Model | 7700 |
|---|
The Keithley 7700 plug-in module offers 20 2-pole or 10 4-pole multiplexer switching channels, supporting independent bank configuration, 50 MHz bandwidth, and latching electromechanical relays with memory-stored closures.
It supports RTD, thermistor, and thermocouple temperature applications with automatic CJC and protected current measurement channels.
Testwall can supply the used Keithley 7700, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keithley 7700.





