K-Patents PR-33-AC - Manual (Page 10)

4 PR-33-AC instruction manual
Document/Revision No. Rev. 1.02 Effective: June, 2014
It is possible to use a WLAN access point to decrease the number of cables (figure 2.3).
WLAN
Access
point
Ethernet
cable
Figure 2.3 Connecting refractometer(s) via wireless.
The maximum distance of a single Ethernet connection is 100 m (incl. one joint
adapter/coupler), but if longer distances are required, a fiber link may be used to
extend the range (see figure 2.4). The range may be up to several kilometers with a
suitable fiber connection.
Fiber
Media
converter
Media
converter
Ethernet
cable
Figure 2.4 Using fiber link to connect refractometer(s).
2.3.2 IP settings for the Sanitary OEM Refractometer
All Sanitary OEM Refractometers are shipped with the factory default IP address of
169.254.23.33. 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 (fig-
ure 2.1), usually without changing the network settings of the computer. This address
will remain in the instrument even after a different IP address has been set. The sensor
answers in the address that is first called up after startup.
Note: If there are more than one Sanitary OEM Refractometers in the same network,
this address cannot be used (section 2.3.4).
The IP address of the instrument can be changed through the instrument homepage
(see chapter 5).