Campbell Scientific OBS500 Smart Turbidity Meter with ClearSensor Technology - Manual (Page 31)

OBS500 Smart Turbidity Meter with ClearSensor™ Technology
The address may also be changed by connecting to the probe in the Device
Configuration Utility. Once connected, in the Settings Editor tab click in the
address box and enter the new address. Press Apply to save the changes.
7.4.1.2 SDI-12 Transparent Mode
The transparent mode allows direct communication with the OBS500. This
may require waiting for programmed datalogger commands to finish before
sending responses. While in the transparent mode, datalogger programs may
not execute. Datalogger security may need to be unlocked before the
transparent mode can be activated.
The transparent mode is entered while the PC is in telecommunications with
the datalogger through a terminal emulator program. It is most easily accessed
through Campbell Scientific datalogger support software, but it is also
accessible with terminal emulator programs such as Windows Hyperterminal.
To enter the SDI-12 transparent mode, enter the terminal emulator from
LoggerNet, PC400, or PC200W datalogger support software. A terminal
emulator screen is displayed. Click the Open Terminal button.
For CR800 series, CR1000, and CR3000 dataloggers, press until the
datalogger responds with the prompt (e.g., “CR1000>” for the CR1000). Type
SDI12 at the prompt and press . In response, the query Enter Cx Port
1,3,5 or 7 will appear. Enter an integer value indicating the control port to
which the OBS500 is connected. A response of Entering SDI12 Terminal
indicates that SDI-12 Transparent Mode is active. Any of the SDI-12
commands may be entered (e.g., aM1! where a refers to the address). After
entering a command, the results may be viewed by entering aR!.
FIGURE 7-4. Terminal Emulator
21