Teledyne M5000B operating instructions Testing the System, Command Description, Parameter Setting

Photometric Analyzer Part I: Control Unit

•Which alarms - if any - are tripped (AL-x ON) Each status output is followed by a carriage return and line feed.

Three input functions using RS-232 have been implemented to date. They are described in Table 2-4.

	Table 2-4: Commands via RS-232 Input
Command	Description
as<enter>	Immediatelystartsanautospan.
az<enter>	Immediatelystartsanautozero.
st<enter>	Togglinginput. Stops/Startsanystatusmessageoutput

from the RS-232, Until st<enter> is sent again.

TheRS-232protocolallowssomeflexibilityinitsimplementation.Table2- 5 lists certain RS-232 values that are required by the 5000B.

Table 2-5: Required RS-232 Options

Parameter	Setting
Baud	2400
Byte	8 bits
Parity	none
Stop Bits	1
Message Interval	2 seconds

Remote Bench and Solenoid Valves: The 5000B is a single-chassis instrument. However, the REMOTE BENCH and SOLENOID RETURN connectors are provided on the interface PCB. The Remote Bench is wired at the factory as well as any optional solenoid valves included in the system.

2.3Testing the System

AfterTheControl/AnalysisUnitisbothinstalledandinterconnected,and the system gas or liquid stream and electrical connections are complete, the system is ready to test. Before plugging the unit into its power sources:

•Check the integrity and accuracy of the fluid connections. Make sure there are no leaks.

•Checktheintegrityandaccuracyofallelectricalconnections.Make sure there are no exposed conductors

Teledyne Analytical Instruments Part I: 2-9