CNR4 Net Radiometer
14
FIGURE 7-6. Labels on the pigtail end of the TEMP cable.
7.4 Data Logger Programming
Short Cut
is the best source for up-to-date data logger programming code.
If your data acquisition requirements are simple, you can probably create and
maintain a data logger program exclusively with
Short Cut
. If your data
TABLE 7-2. TEMP Cable (Wire Colo
u
r, Function, and Data Logger Connection)
Wire
Colo
u
r
Wire Function
Data Logger Connection Terminal
Using Thermistor
1
Using Pt-100
1
White
Thermistor Signal
U
configured for single-ended analog
ue
input
2
,
SE
(single-ended, analog
ue
-voltage input)
N/A
Red
Thermistor Voltage
Excitation
U
configured for voltage excitation
2
,
EX
,
VX
(voltage excitation)
N/A
Black
Thermistor Reference
⏚
(analog
ue
ground)
N/A
Green
PRT (Pt-100) Signal
N/A
U
configured for differential high
analog
ue
input
2
,
DIFF H
(differential
high, analog
ue
-voltage input)
Yellow
PRT (Pt-100) Signal
Reference
N/A
U
configured for differential low
analog
ue
input
2
,
DIFF L
(differential
low, analog
ue
-voltage input)
Grey
PRT (Pt-100) Current
Excitation
N/A
U
configured for current excitation
2
,
IX
(current excitation)
Brown
PRT (Pt-100) Current
Return
N/A
IXR
(current excitation return),
⏚
(CR6 only)
Clear
Shield
⏚
(analog
ue
ground)
⏚
(analog
ue
ground)
1
Pull back unused wires and tie them around the
TEMP
cable using a cable tie or electrical tape to avoid possible damage to the thermistor or Pt-
100, due to electrical short circuit.
2
U
terminals are automatically configured by the measurement instruction.
