34902A CAL

The 34902A CAL from Keysight Technologies is a 16 channel reed multiplexer module (2/4-wire) module for 34970A/34972A data acquisition/switch units. It employs reed relays to achieve scan rates up to 250 channels-per-second. This module can be used for high throughput automated test applications as well as high speed data logging and monitoring tasks. A 16 two-wire inputs switch up to 300V. Two- and four-wire channels may be mixed on the same module. User provided shunt resistors are required for current measurements. The 34970A/34972A’s internal DMM connections are accessible only through the 34902A low frequency multiplexer. This multiplexer modules employ break-before-make scanning, ensuring only one closed channel (or channel pair) at a time. Multiple channel closures are allowed on the 34902A modules when not configured for scanning.

• Calibrated multiplexer module
• 16 channel multiplexer, 250ch/sec speed
• 2-wire reed (4-wire selectable)
• 300V maximum voltage, 50mA maximum current, 10MHz bandwidth
• Built-in thermocouple reference junction
• Less than 6µV thermal offset, 2W power rating
• Less than 1ohm initial closed channel, greater than 10Gohm isolation (ch to ch, ch to earth)
• 120/s open/closed speed
• Operating temperature range from 0°C to 55°C

Contents

34902A multiplexer module, Certificate of calibration.