K-Patents PR-33-AC - Manual (Page 13)

2 Instrument connections 7
© Copyright K-Patents 2014. All rights reserved.
Once the refractometer is powered up, it should be reachable from any correctly con-
figured computer. Typing the IP address of the instrument to the address bar of a web
browser should bring up the instrument homepage (see chapter 5).
Note: The factory-default IP address of the Sanitary OEM Refractometer is 169.254.23.33.
This address should always respond (see section 2.3.2).
2.3.6 Troubleshooting the connection
In case the instrument cannot be reached through the network, check the following
things:
•
the instrument receives power; the ethernet switch link light is lit.
•
the network settings of the computer are compatible with those of the instrument
(section 2.3.3)
•
if the instrument should be at IP address 169.254.23.33, but cannot be reached,
check that there is only one Sanitary OEM Refractometer in the same network, as
otherwise there is an address conflict
•
check that the software firewall of the computer does not block the connections
A useful test to determine whether the problem is in network settings is to set up a
small network. Perform the following steps:
•
set up a network of only one Sanitary OEM Refractometer and one computer (fig-
ure 2.1)
•
check that the computer has suitable network settings and that its WLAN connec-
tion is turned off (section 2.3.3)
•
use the ping utility of the computer to try and reach the refractometer
The ping utility mentioned above is in Windows systems available by using the Com-
mand Prompt (usually found in the Accessories; or open Run, type cmd in the empty
line and press enter to open Command Prompt). The usage of ping is very simple: go to
the command interface, type the name of the command and the IP address you want
to check and press Enter. If the Ethernet connection is physically working and the ad-
dress given to ping is correct, the Sanitary OEM Refractometer will answer to ping and
return any data packets sent to it, see figure 2.7.