ognize thataccuracy may be significantly degraded using a two-wire connec-tion because of wire resistance.

1521 Handheld Thermometer Readout

User’s Guide

24

GND
P1
C2
P2
C1
J1 J2
Four-wire Connection
GND
P1
C2
P2
C1
J1 J2
Three-wire Connection
GND
P1
C2
P2
C1
J1 J2
Two-wire Connection
Short
Short

Figure6 Probe Wiring Diagrams