In-Situ Con TROLL PRO Operators Manual (purchased after 10 May 2012) - Manual (Page 21)

800-446-7488 21 www.in-situ.com
Level/Specific Gravity (Aqua TROLL 200 only)
1. From the main screen, select Menu, Settings, Probes.
2. Select the Aqua TROLL 200 Instrument.
3. Select Options.
4. Select Level, Specific Gravity.
5. Choose Fixed or Automatic.
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For Fixed, enter a desired value and select Enter.
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For Automatic, the controller will configure the Aqua TROLL to calculate specific
gravity automatically.
Calibration Interval
This function will warn you when you are overdue for a user calibration by displaying
the graph symbol
on screen.
1. From the main screen, select Menu, Settings, Probes, Aqua TROLL 200, Options,
Cal. Interval.
2. Select the preferred interval from the on-screen options.
Calibrating the Aqua TROLL 100 and 200 Instruments
From the main screen, select Menu, Calibrate, then Aqua TROLL 100 or Aqua TROLL
200. You will have the following options.
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Conductivity
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Zero Pressure (Aqua TROLL 200 only)
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Level Reference (Aqua TROLL 200 only)
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Cal Report
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Defaults
Calibrating Conductivity
The Aqua TROLL 200 Instrument’s factory calibration with NIST-traceable standards
provides a high degree of linearity across the entire operating range of 5 to 100,000
μS/cm. The Aqua TROLL 200 is capable of meeting its published specifications without
requiring additional calibration by the user, as most commercially available standards
can introduce a larger potential measurement error than the instrument’s initial factory
calibration.
A user calibration is only recommended if you must conform to a
standard operating procedure or if the cell has undergone physical
change (e.g., deposits on conductivity cell walls that cannot be
removed; physical damage to conductivity cell walls).
1. If you opt to calibrate the Aqua TROLL conductivity cell, refer to the calibration
procedure in the Aqua TROLL Operator’s Manual for laboratory setup instructions.
2. From the Con TROLL PRO Main menu, select Calibrate, then Aqua TROLL 200 (or
100), then Conductivity.
3. Use the arrow keys to enter the standard value. Select Enter.