Table of Contents
Advertisement
Chapter 4 Features and Functions
HP 34902A 16-Channel Multiplexer
HP 34902A 16-Channel Multiplexer
This module is divided into two banks of eight channels each. All 16
channels switch both HI and LO inputs, thus providing fully isolated
inputs to the internal DMM or an external instrument. When making
4-wire resistance measurements, the instrument automatically pairs
channel n with channel n+8 to provide the source and sense connections.
The module has a built-in isothermal block to minimize errors due to
thermal gradients when measuring thermocouples.
Backplane Switches
Internal
DMM Input
98
Reference
Junction
99
Sensor
Internal
DMM Input
(4W Sense)
97
NOTES:
If any channels are configured to be part of the scan list, you cannot close multiple channels;
closing one channel will open the previously closed channel.
Current measurements on this module will require external shunt resistors.
166
Channel Switches
100
100
Bank Switch
100
100
01
08
Com
Com (4W Sense)
09
16
Advertisement
Table of Contents
