Campbell CRVW3, Инструкция по эксплуатации

Страница: 60 / 135

CRVW3 3-Channel Vibrating-Wire Datalogger
47
CRVW3. Once the startup sequence is finished, the two LEDs will stop
showing solid orange, and begin to indicate the regular measurement and
communications status of the device.
When the CRVW3 begins operating you will see a green flash on the Status
LED every few seconds to indicate that the device is awake. If the CRVW3-
RF451 is configured as a radio repeater (see Section 10.1 , Radio Network
Station Types
(p. 58)
), the Status LED will flash orange instead of green while it
is awake. While the device is measuring its sensors, the Status LED will show
as solid green. This lasts about 1-3 seconds and then the solid green condition
ends. You should observe this LED behavior to confirm that the CRVW3 is
measuring its channels at the desired interval (which was set previously using
DevConfig
).
As a power-saving feature, the CRVW3 remains awake between measurements
only for a limited time. If the device is powered up without a USB cable
connected to it, it will remain awake between measurements (indicated by the
green or orange “awake” flash on the Status LED) for five minutes. After five
minutes, the device will sleep between measurements. While in sleep mode, the
CRVW3 will wake up only long enough to measure its sensors and store the
results, and the Status LED will light up as solid green during that time. The
device then immediately returns to sleep, and therefore no “awake” indicator
flashes (green or orange) will be observed between measurements.
The CRVW3 will wake up (if not already awake) and remain awake as long as
the USB cable is connected to the device. After the USB cable has been
disconnected, the device will remain awake for five minutes, and then sleep
between measurements.
On devices with the –RF451 and –RF407 options, the RX/TX LED flashes red
when transmitting data over the radio and green when receiving data over the
radio. A solid red condition indicates a radio error.
Radio transmissions received by the device will wake it up if needed. The
device will remain awake for as long as radio activity is in process plus an
additional 20 seconds (just in case additional radio transmissions are received).
After that the device will return to sleep (if it was asleep before the radio
transmissions were first received).
8.2.8.2 Validation with DevConfig
To perform measurement validation with the laptop, connect the USB cable,
run
DevConfig
, and connect to the CRVW3 (see Section 8.1.4 ,
Connecting to
the CRVW3
(p. 20)
, for more information). The top set of tabs displayed after
connecting includes the
Troubleshoot
tab. Use the
Troubleshoot
tab screen to
test and examine the sensor response for each channel. The diagnostic
information provided helps you determine whether the connected sensor is
operating correctly and is providing proper measurement readings. Press the
Poll button to perform the test and wait a few seconds for the results to appear
on the screen. Use the Channel selection box to select each active channel in
turn for individual testing.
A high-quality sensor response (spectrum and time-series waveform in the
Troubleshoot screen) is shown here: