September
2017
Sentinel V SC and RT Operation Manual
Page 136
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
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If the computer uses an external wireless adapter, make sure the adapter is working correctly
and is attached and installed properly.
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If wireless capability is integrated into the computer, make sure the wireless transmitter is
turned on. This might also turn the wireless network receiver on and off. Many laptops have an
external switch for turning the transmitter on and off. If you aren’t sure how to turn it on, check
the information that came with the computer or go to the manufacturer’s website.
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If the ADCP does not appear on the list of wireless networks available to connect to, make sure
the ADCP has not timed out. The network is available after power up for five minutes. Placing a
finger over the Touch sensor starts the network again for five minutes. Click on the Refresh
icon ( ) or use the wireless adapter’s interface to search for connections.
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If the ADCP does not appear on the list of wireless networks available to connect to, another
computer may already be connected to the ADCP. Only one computer may be connected to an
ADCP at a time.
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If the ADCP appears on the list of wireless networks available to connect to but the laptop fails to
connect to it, Windows® 7 may have kept the name on the list because it connected to that net-
work in the past. In other words, this does not mean that the network is actually available.
Touch the Wireless Touch Sensor to start the network. Listen for the two beeps: the first one
confirms the sensor detected your finger and the second beep confirms the wireless network is
on. Click on the Refresh icon ( ) or use the wireless adapter’s interface to search for connec-
tions and try to connect again.
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The touch sensor may stay “triggered” for up to 60 seconds when touched. During this time, the
sensor will not respond with a beep when touched again. This is normal and does not affect con-
necting to the WLAN.
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The touch sensor can be saturated to a point where it won’t register to touch. This occurs, for ex-
ample, when the ADCP is submerged in water or covered with biofouling. In extreme cases, the
WLAN will not connect. If this occurs:
o
Take the system out of the water.
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Rinse the sensor and end-cap with fresh water and then dry the instrument.
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Remove biofouling from the touch sensor and end-cap, and then the housing if
problems persist.
o
Remove the ADCP from any mounting fixture, especially if it is conductive or me-
tallic.
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The Touch sensor may have failed. Open the system and try communications
Troubleshooting Serial Issues
If there is a communications issue and the beeps are heard when power is applied to the ADCP:
Check the system configuration for RS-232 or RS-422. If the system is configured for RS-422 and con-
nected to a RS-232 port, you may see the wakeup banner, but can not send commands to the ADCP.
How do I know if the system is RS-232 or RS-422? Check the part number on the product label:
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S100-53P2WR-16G-200-5000 is a RS-232 system;
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S100-53P4WR-16G-200-5000 is a RS-422 system. If the Sentinel V Real-Time system is config-
ured for RS-422, use a RS-232 to RS-422 converter when connecting to the serial port. The serial
port on the computer must match the serial communications of the Sentinel V system.
