Campbell OBS500, Руководство оператора

Страница: 39 / 64

OBS500 Smart Turbidity Meter with ClearSensor
®
Technology
29
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. Complete program examples for select CRBasic dataloggers can be
found in Appendix B , Example Programs
(p. B-1)
. Programming basics and
programming examples for Edlog dataloggers are provided at
www.campbellsci.com/old-manuals .
7.6.1 SDI-12 Programming
The SDI12Recorder instruction is used to read the OBS500 in SDI-12 mode.
A multiplier of 1.0 and an offset of 0.0 yield water level in psig and
temperature in degrees C.
The SDI12Recorder instruction has the following form:
SDI12Recorder (Destination, Output String, Multiplier, Offset)
Refer to Appendix B.1 , CR1000 SDI-12 Program
(p. B-1)
, for an example of
using this CRBasic instruction.
7.6.2 RS-232 Programming
The SerialOut() instruction sends strings over the Tx COM port and the
SerialIn() instruction receives strings from the Rx COM port.
Refer to Appendix B.2 ,
CR1000 RS-232 Program
(p. B-2)
, for an example of
using these CRBasic instructions.
7.6.3 Analog Programming
The
PortSet
instruction is used to open the shutter. Either the
VoltDiff
(recommended) or VoltSe instruction is used to measure the analog voltage
output.
Refer to Appendix B.2 ,
CR1000 RS-232 Program
(p. B-2)
, for an example of
using these CRBasic instructions.
7.7 Operation in High Sediment Loads and Sandy Sediments
Sites with high sediment loads and large sand grains can be problematic for the
shutter and its motor. The recommendations provided in this section should
help reduce these problems.
Typically sites with high biological growth have relatively low
sediment loads.
NOTE
NOTE