Hach SIGMA 900 - Manual (Page 19)

Section 3
Page 19
8544install.fm Auxiliary Connection
Figure 6 4–20 mA Interface and Pulse Duration Input
For details on programming the sampler for flow proportional operation, refer
to SECTION.
Splitter Interface
This splitter interface (Cat. No. 939) can be used if access to more than one of
the Auxiliary Receptacle functions is required simultaneously. Connecting the
interface to the 6-pin connector on the sampler provides three additional
connectors for use. Two or more interfaces may be connected in series to
allow for as many connections as desired.
Figure 7 Splitter Interface
To Auxillary Connector (-)
(+)