Installation, 1 wiring to datalogger, Wiring to datalogger – Campbell Scientific 109-L Temperature Probe User Manual
Page 14: 2. steinhart-hart linearization error, 1. wire color, function, and datalogger connection

Model 109 Temperature Probe
FIGURE 6-2. Steinhart-Hart linearization error
7. Installation
If you are programming your datalogger with Short Cut, skip Section 7.1,
Wiring to Datalogger, and Section 7.2, Datalogger Programming. Short Cut
does this work for you. See Section 4, Quickstart, for a Short Cut tutorial.
7.1 Wiring to Datalogger
TABLE 7-1. Wire Color, Function, and Datalogger Connection
Wire Color
Wire Function
Datalogger Connection
Terminal
Black
Voltage-excitation input
U configured for voltage
excitation
1
,
EX, VX
(voltage excitation)
Red
Analog-voltage output
U configured for single-ended
analog input
1
,
SE
(single-ended,
analog-voltage input)
Purple
Bridge-resistor lead
AG or
(analog ground)
Clear
EMF shield
AG or
(analog ground)
1
U channels are automatically configured by the measurement instruction.
-0.005
0
0.005
0.01
0.015
0.02
0.025
0.03
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
Erro
r °
C
Temperature °C
Steinhart-Hart Linearization Error
6