III-7
Instrument Operation
Thermo Scientific Orion 2111LL Sodium Monitor User Guide
ROSS and the COIL tradedress are trademarks of Thermo Fisher Scientific Inc. US Patent 6,793,787
Sets .up .to .3 .alarms: .high, .low, .and .an .error .signaling .contact .
• . .Relays .1 .and .2 .(RLY1, .RLY2) .are .normally .open .dry .contacts .used .
to .set .high .and .low .alarms .for .measurement .values
• . .RLY .1 .options: .Off, .Hi, .Low
• . .RLY .2 .options: .Off, .Hi, .Low
• . .Relay .3 .(RLY3) .is .a .normally .closed .contact .that .can .be .dedicated .
to .errors . .This .will .close .if .power .to .monitor .is .lost . .This .alarm .is .
effected .by .calibration, .errors .and .off-line .or .hold .status
• . .RLY .3 .options: .Off, .Cal, .Hold, .Err
• . .Default: .all .alarms .(1, .2, .& .3) .are .set .to .off
Set .either .of .2 .analog .current .outputs .(Sout .& .Tout), .set .scale .values .as .
linear .or .logarithmic .curves .for .concentration .
Analog outputs:
• . .Toggle .between .4-20 .mA .or .0-20 .mA .current .signals .
• . .The .outputs .share .a .common .return, .but .are .isolated .from .the .main .
circuitry .of .the .monitor .
• . .Default .output .current: .4-20 .mA
• . .Sout: .dedicated .sodium .output .
• . .Tout: .dedicated .temperature .output .
• . .Toggle .between .logarithmic .(Log) .and .linear .(Lin) .scale .for .each .
• . .Set .Low .(LO) .and .high .(HI) .limits .for .Sout .and .Tout .
• . .Default .scale .values: .for .both .Log .and .Lin .
Default Concentration:
• . .Low .limit: .1 .0 .ppb
• . .High .limit: .100 .ppb
Default Temperature:
• . .Low .limit: .5 .0 .degrees .C
• . .High .limit: .45 .0 .degrees .C
mAmp
Alarm
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