Campbell T107, Instruction Manual

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T107 Weather Station
4.2.2 No Response from Datalogger through SC32B, RAD Modem, or
Phone Modem
At the datalogger:
A. Make sure the battery has been installed and the power switch set to “ON”
(Section 2.8,
Battery Installation
).
B. Use a voltmeter to measure the voltage on the 12V and G terminals (see
FIGURE 2-44); the voltage must be between 9.6 and 16 Vdc.
Use a voltmeter to measure the voltage on the 5V and G terminals (see
FIGURE 2-44); the voltage must be between 4.9 – 5.1 Vdc.
C. Make sure the datalogger is connected to the communication peripheral,
and the communication peripheral properly installed and configured
(Section 2.5,
Communication Peripherals
).
At the computer:
D. Make sure calling software is properly configured (PC200W,
VisualWeather, or LoggerNet).
E. Check the cable(s) between the serial port and the modem. If cables have
not been purchased through Toro, check for the following configuration
using an ohm meter:
25-pin serial port:
computer end modem end
2 2
3 3
7 7
20 20
9-pin serial port:
computer end modem end
2 3
3 2
4 20
5 7
F. Make sure the communication device at the computer is properly
configured and cabled (Section 2.5,
Communiction Peripherals
).
G. Call your local Toro distributor if still no response.
4.2.3 NAN or
rr
INF Displayed in a Variable
A. Make sure the battery voltage is between 9.6 and 16 Vdc.
B. Verify sensors are plugged into the correct sensor connector and the
locking ring is securely in place (see FIGURE 2-21). Check connectors for
any corrosion on pins.
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