User`s manual

Configuring the Relay Multiplexer Modules 27Chapter 2
5 Volt Excitation for Strain Gages
The E1345-66201 is used with a variety of terminal modules including the
E1355A and E1356A Strain Gage Multiplexers. When used with these strain
gages, the jumpers JM1 and JM2 may be installed to provide 5 volt
excitation to the strain gage bridge. This voltage is fused at 4A. Channel x93
is used to sense it.
Jumpers JM1 and JM2 must be removed when used with the E1347A
Thermocouple terminal module. This must be done because the connector
pins in this case are used to sense the 5k Ohm thermistor on the terminal
module.
When the relay multiplexer is shipped from the factory, the jumpers are not
installed.
Adding Signal Conditioning Components/Current Shunts
The multiplexer module's terminal module allows you to add components on
each channel for:
-- Low-Pass Filters
-- Attenuators
-- Current Shunts (for current measurements using a voltmeter)
Figure 2-5 shows how to install the appropriate components for the above
configurations. In the figure, channel 12 shows a low pass filter
configuration, channel 07 an attenuator configuration, and channel 04 a
current shunt configuration.