In-Situ Con TROLL PRO Operators Manual (purchased before 10 May 2012) - Manual (Page 14)

14 Configuring Probes
2.10 CONFIGURING AQUA TROLL OPTIONS
2.10.1 Alpha Coefficient
1. Select Menu, Settings, Probes.
2. Select the Aqua TROLL probe.
3. Select Options, then Alph.
4. Enter the desired coefficient. Select Enter. The default value is 0.0191.
2.10.2 Reference Temperature
1. Select Menu, Settings, Probes.
2. Select the Aqua TROLL probe.
3. Select Options, then Tref.
4. Enter the desired reference temperature. Select Enter. The default value is
25° C.
2.10.3 TDS Factor
1. Select Menu, Settings, Probes.
2. Select the Aqua TROLL probe.
3. Select Options, then TDS Factor.
4. Enter the TDS factor. Select Enter. The default value is 0.6500 ppt.
2.10.4 Setting the Level Mode
1. Select Menu, Settings, Probes.
2. Select the Aqua TROLL probe.
3. Select Options, then Level Mode.
4. Choose between Depth, Level-DTW, and Level-SE.
• Depth is the depth of the water above the level sensor.
• Level-DTW (depth to water) is the distance from the top of a well casing or
other level reference down to the water surface.
• Level-SE (surface elevation) relates the probe measurements to a user-
selected level reference.
To enter the level reference, return to the main menu, select Calibrate, select Aqua
TROLL, select Level Reference, and use the arrow keys to enter the level reference
value.
2.10.5 Entering the Specific Gravity
1. Select Menu, Settings, Probes.
2. Select the Aqua TROLL probe.
3. Select Options, then Specific Gravity.
4. Choose Fixed or Automatic.
• For Fixed, enter a desired value and select Enter.
• For Automatic, the controller will configure the Aqua TROLL to calculate
specific gravity automatically.
2.10.6 Setting the Calibration Interval
This function will warn you when you are overdue for a user calibration by
displaying the graph symbol (
) on-screen. See Section 3.3.2 Zeroing the
Pressure Sensor (Air Only) on page 19 for important information regarding zeroing
the pressure sensor and Section 3.3.1 Calibrating Conductivity on page 18 for
important information regarding user calibration of conductivity.
1. Select Menu, Settings, Probes.
2. Select the Aqua TROLL probe.
3. Select Options, then Calibrate Interval.
4. Select the preferred interval (ranging from none, to one week, to 12 months)
from the on-screen options.