Vaisala K-PATENTS PR-43, Руководство пользователя

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3.4.1 IP settings for PR-43
All PR-43 refractometers are shipped with the factory default IP address of 169.254.43.43 .
This address belongs to the Zeroconf addresses (as defined in IETF standard RFC 3927) so that
it can easily be reached from a stand-alone computer, usually without changing the network
settings of the computer.
This address remains in the refractometer even after a different IP
address has been set. The refractometer answers in the address that is first called up after
startup.
If there are more than one refractometer in the same network, this address cannot
be used. See
Configuring refractometer network (page 13) .
The IP address of the refractometer can be changed through the refractometer homepage, see
Web interface (page 16) .
3.4.2 IP settings for stand-alone computer
When a computer with automatic IP settings (DHCP enabled) is turned on in a network with
only the refractometer, the computer should automatically obtain an IP address 169.254.x.x. In
this case the factory default address of the refractometer can be used for connecting without
any further changes in settings. If this does not work, make sure that the WLAN (Wireless
network connection) is not active on the computer that is connected to the refractometer. If
the WLAN is active, the computer’s Ethernet connection may not function as expected. Also,
obtaining the 169.254.x.x. address may take up to a minute.
If the connection to the refractometer still cannot be achieved, the computer’s IP address can
be checked by opening the command window (command prompt) and by typingthe
command ipconfigat the command prompt (press ENTER to give the command), see the
figure below (in Mac OS X and Linux the same command is called ifconfig ). The
information given includes the computer’s IP address. If the address does not start with
169.254, the IP address of the computer needs to be configured manually to, for example,
169.254.43.44, netmask 255.255.0.0.
For further troubleshooting, see Troubleshooting connection (page 14) .
The connection does not work if the computer and the refractometer have exactly
the same IP address.
When the network settings of the refractometer and / or computer have been configured
according to the instructions above, the next step is to test the connection as instructed in
Testing Ethernet connection (page 14) .
PR-43 Series User Guide M212455EN-B
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