In-Situ Con TROLL PRO Operators Manual (purchased after 10 May 2012) - Manual (Page 25)

800-446-7488 25 www.in-situ.com
4. Select Pressure, Specific Gravity.
5. Select “Fixed” or “Auto.”
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If you select “Fixed,” use the arrow keys to enter a desired value, and select Enter.
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If you select Auto, the Con TROLL PRO will configure the Aqua TROLL 400 to
calculate specific gravity using the measurement from the conductivity sensor.
Calibration Interval
This function will warn you when you are overdue for a user calibration by
displaying the graph symbol on the screen.
1. From the main screen, select Menu, Settings, Probes.
2. Select the Aqua TROLL 400 Instrument.
3. Select Options.
4. Select Cal. Interval.
5. Use the arrow keys to select the preferred interval from the on-screen options.
Calibrating the Aqua TROLL 400 Instrument
1. From the main screen, select Menu, Calibrate, then Aqua TROLL 400. You will
have the following options.
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RDO
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Conductivity
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Level
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pH/ORP 2
2. Place the calibration cap, with the vent hole, on the top of the calibration chamber.
1 Storage cap
2 Calibration cap
Figure 5.1 Storage cap and vented calibration cap shown together
Calibrating the Optical RDO Sensor
Calibration Options
From the main screen, select Menu, Calibrate, Aqua TROLL 400, RDO. You will have
the following options.
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Saturation—Choose this option if you want to do a one-or two-point calibration.
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Concentration—Choose this option if you want to calibrate your sensor values to
a concentration obtained using another method.