CS215 Temperature and Relative Humidity Probe
A
Short Cut
tutorial is available in Section 4,
Quickstart
. If you wish to import
Short Cut
code into either
Edlog
or
CRBasic Editor
to create or add to a
customized program, follow the procedure in Appendix A.1,
Cut Code into a Program Editor
. Programming basics for CRBasic and Edlog
dataloggers are provided in the following sections. Complete program
examples for select dataloggers can be found in Appendix B,
Example
Programs
.
7.2.1 CRBasic Programming
The
SDI12Recorder()
measurement instruction programs CRBasic
dataloggers (CR200(X)-, and CR800-series, CR1000, CR3000, and CR5000)
to measure the CS215 sensor. This instruction sends a request to the sensor to
make a measurement and then retrieves the measurement from the sensor. See
Section 8.1,
Sensor Measurements
, for more information.
When using a CR200(X), the
SDI12Recorder()
instruction has the following
syntax:
SDI12Recorder
(
Destination
,
OutString
,
Multiplier
,
Offset
)
For the other CRBasic dataloggers, the
SDI12Recorder()
instruction has the
following syntax:
SDI12Recorder
(
Destination, SDIPort, SDIAddress, “SDICommand”,
Multiplier, Offset
)
For all of the CRBasic dataloggers, the
Destination
parameter must be an array
of length 2, with the first index for Air Temperature (in °C) and the second for
Relative Humidity (as a percent).
Variations:
•
Temperature reported as °C — set
Multiplier
to
1
and
Offset
to
0
•
Temperature reported as °F — set
Multiplier
to
1.8
and
Offset
to
32
7.2.2 Edlog Programming
Edlog dataloggers read the CS215 using the
SDI12 Recorder (P105)
instruction.
Please note that Edlog only allocates one input location for the
SDI12
Recorder (P105)
instruction. Two input locations are required for the SDI-12
M!
command. The additional input location needs to be inserted manually
using the Input Location Editor. To get into the
Input Location Editor
, select
Edit/Input Labels
or press the
F5
key. Once in the
Input Location Editor
,
do the following:
1.
Choose
Edit/Insert Block
.
2.
After the
Insert Block
dialog box appears, type in a base name for the
input locations. Each input location will have the base name with an
underscore and a consecutive number.
3.
In the
Start Address
field, type in the number of the first input location.
4.
In the
Number of InLocs
field, type in 2 and select
OK
.
7
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