4 Installation

4.1 Lead Wire Identification

The 5623A PRTis equipped with a four-wire cable (see Figure 1). Four lead
wires are used to cancel lead wire resistance. Forbest results, the readout de-
viceshould b e equippedto handle four-terminal resistors.
The lead wires aretwo different colors. Lead wire pairs attached to each end of
the sensor are identified by red and white insulation.
5623A 9
4Installation
White Red
White Red
Figure1 PRTSchematic