Campbell EE181, Инструкция по эксплуатации, Страница: 15 / 32

Model EE181 Temperature and Relative Humidity Probe
7
7.1 Wiring to Datalogger
Connections to Campbell Scientific dataloggers for measuring humidity and
temperature using two single-ended analog inputs are given in TABLE 7-1 . See
Section 8.3 , Long Cable Lengths
(p. 11)
, for a discussion on errors caused by
long cable lengths.
TABLE 7-1. Wire Color, Function, and Datalogger Connection for
Single-Ended Measurement
Wire
Color Wire Function Datalogger Connection Terminal
Yellow
Temperature
signal
U configured for single-ended analog input 1 ,
SE (single-ended, analog-voltage input)
Blue
Relative
humidity signal
U configured for single-ended analog input,
SE
Black Signal reference
⏚
(analog ground)
Clear Shield
⏚
Red Power 12V or SW12V
1 U channels are automatically configured by the measurement instruction.
7.2 Datalogger Programming
Short Cut is the best source for up-to-date datalogger programming code.
Programming code is needed when:
• Creating a program for a new datalogger installation
•
Adding sensors to an existing datalogger program
If your data acquisition requirements are simple, you can probably create and
maintain a datalogger program exclusively with Short Cut . If your data
acquisition needs are more complex, the files that Short Cut creates are a great
source for programming code to start a new program or add to an existing
custom program.
Short Cut
cannot edit programs after they are imported and edited
in CRBasic Editor .
A
Short Cut
tutorial is available in Section 4 ,
QuickStart
(p. 2)
. If you wish to
import Short Cut code into CRBasic Editor to create or add to a customized
program, follow the procedure in Appendix A , Importing Short Cut Code Into
CRBasic Editor
(p. A-1)
. Programming basics for CRBasic dataloggers are
provided in the following sections. A complete program example for a select
datalogger can be found in Appendix B , Example Programs
(p. B-1)
.
7.2.1 VoltSE() Instruction
The
VoltSE()
measurement instruction is used with CRBasic dataloggers to
measure both temperature and relative humidity from the EE181 sensor. The
NOTE