Campbell CS230, Руководство по техническому обслуживанию и инструкция

Страница: 27 / 31

CS230 Temperature Profiler
18
FIGURE 7-2. Screen capture of SDI-12 transparent mode on CRBasic
CR800 datalogger using control port 1 and prompting for SDI-12
addresses
6. To change the SDI-12 address, press the <enter> key. At the “CR800>”
”CR1000>” prompt enter the command SDI-12 and press the <enter> key.
Enter the appropriate control port, press the <enter> key, and enter aAb! ;
where
a
is the current address from the above step and
b
is the new
address. The temperature sensor will change its address and the datalogger
will respond with the new address and then exit the SDI-12 transparent
mode.
8. Maintenance and Calibration
The CS230 probe requires no maintenance or calibration.
9. Troubleshooting
Symptom: –9999 or NAN for temperature
1. Verify the green wire is connected to the control port specified by the
SDI12 measurement instruction.
2. Verify the red power wire is connected to a 12V terminal; check the
voltage with a digital volt meter. If a switched 12V terminal is used,