P-600 SIC Analyzer Manual
Chapter V: Normal Operation
39
If one of the three programmable relays are
programmed to “Validation”, the relay will energize upon the
first successful validation protocol and will remain on until the system power is cycled or there is a failed
validation protocol.
There is also a
MODBUS register which will communicate a “PASS” or “FAIL” status (see current MODBUS
map for exact address).
Sample Streams
On Analyzers equipped with the stream switching option, the sample stream being analyzed can be
changed from 1 to 2 via a control room digital input contact closure (see Chapter III). When the signal is
removed, the instrument goes back to analyzing stream 1.
The Analyzer can also be programmed to alternate between two streams (see Chapter IV).
Loss of Power Restart
In the event of a power loss, the P-600 Salt in Crude Analyzer will automatically begin monitoring when
power is restored if the Standby mode (see Chapter IV) is set to OFF. If the Standby mode is set to ON,
the Analyzer will have to be placed online manually by accessing the Main Menu and then setting Status
to ON.
NOTE: In order to restart the Analyzer after external power has been
lost, the Power Reset button on the side of the Customer Connections
enclosure must be pressed
—
regardless of the Standby setting.