GE Sievers 900 Series, Operation And Maintenance Manual

Page: 71 / 236

GE Analytical Instruments ©2009 71 of 236 DLM 90488-01 Rev. A
Figure 6: Wiring Diagram for the 4-20 mA Connection
Wiring the Remote Start (Binary Input) Connection
The 900 On-Line Analyzer remote start (binary input) connection can be wired in a variety of ways
and is intended to execute a start/stop command to the Analyzer from a remote location, such as a
Process Logic Control System or Center (PLC). Wiring examples are shown in Figure 7 and Figure 8.
Note that binary input must be activated in the Analyzer firmware later. It is important to confirm
the correct signal strength before setting binary input to
On , to avoid unexpectedly starting or
stopping analysis. For more information on activating binary input, see “Activating Binary Input” on
page 110.
Pin 12 (-)
Pin 11 (+)
TB3
Internal to 900 On-Line Analyzer
4-20 mA Output
Isolated self power
Voltage compliant to 20 V Max. Load 600 ohms
No external power required
(-)
(+)
Recorder
or
Rload