229 Heat Dissipation Matric Water Potential Sensor
10
5.6 Example #2 — CR1000 with AM16/32-series Multiplexer, CE4
and Sixteen 229 Sensors with Temperature Correction
Table 5-2 shows wiring information for connecting multiple 229 sensors and CE4
excitation module to an AM16/32 multiplexer and CR1000 datalogger. See
Figure 6-4 for a schematic of this wiring configuration.
Table 5-2. 229 Sensor and CE4 Wiring with CR1000 and AM16/32-series
229
107
Function
CR1000
CE4
Multiplexer
(4x16 mode)
Blue
229 Thermocouple High
ODD H
(1H, 3H, etc)
Red
229 Thermocouple Low
ODD L
(1L, 3L, etc)
Green
229 Heater High
EVEN H
(2H, 4H, etc)
Black
229 Heater Low
EVEN L
(2L, 4L, etc)
Clear
229
Shield
G
CE4
Power
12V
+12V
CE4
Ground
G
CE4
Enable
C3 CTRL
1H
COM
ODD
H
1L
COM
ODD
L
CE4 current excitation channel
Channel 1 COM EVEN H
CE4
Ground
COM EVEN L
AM16
Power
12V
12V
AM16/32
Ground
G
GND
AM16/32
Enable
C1
RES
AM16/32
Advance
C2
CLK
Red
107
Signal
SE
3
Black
107
Excitation
EX1
Purple
107
Signal
Ground
Clear
107
Shield
G