In-Situ Con TROLL PRO Operators Manual (purchased after 10 May 2012) - Manual (Page 24)

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1. From the main screen, select Menu, Settings, Probes.
2. Select the Aqua TROLL 400 Instrument.
3. Select Options.
4. Select Conductivity, Tref.
5. Use the arrow keys to enter the desired reference temperature.
6. Select Enter. (The default value is 25° C.)
Conductivity/TDS Factor
1. From the main screen, select Menu, Settings, Probes.
2. Select the Aqua TROLL 400 Instrument.
3. Select Options.
4. Select Conductivity, TDS.
5. Use the arrow keys to enter the TDS factor.
6. Select Enter. (The default value is 0.6500 ppt.)
Level/Level Mode
1. From the main screen, select Menu, Settings, Probes.
2. Select the Aqua TROLL 400 Instrument.
3. Select Options.
4. Select Level, Level Mode.
5. Choose between Depth, Level-DTW, and Level-SE.
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Depth is the depth of the water above the level sensor.
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Level-DTW (depth to water) is the distance from the top of a well casing or other
level reference down to the water surface.
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Level-SE (surface elevation) relates the probe measurements to a user-selected
level reference.
Level/Baro Correction
1. From the main screen, select Menu, Settings, Probes.
2. Select the Aqua TROLL 400 Instrument.
3. Select Options.
4. Select Pressure, Baro Correction.
5. Select “Off” or “On,” and select Enter.
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If you select “On,” the probe will apply a barometric correction from the Con
TROLL PRO to the reading from the Aqua TROLL pressure sensor.
Level/Specific Gravity
Specific gravity can be used to accurately calculate level measurements based on the
dynamic density of solution.
1. From the main screen, select Menu, Settings, Probes.
2. Select the Aqua TROLL 400 Instrument.
3. Select Options.