In-Situ TROLL 9500 Operators Manual - Manual (Page 81)

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TROLL 9500 Operator’s Manual 0095110 rev. 007 01/09
CONDUCTIVITY QUICK CAL
The procedure to Quick Cal the conductivity sensor (a 1-point calibra-
tion at approximately 8,000 μS/cm), along with other sensors in the
Basic Sensor Set, may be found in Section 3, Getting Started. To
perform a more accurate calibration for a specific conductivity range,
follow the procedure below.
TRADITIONAL CONDUCTIVITY CALIBRATION PROCEDURE
1. With a conductivity sensor installed and plugs or sensors in the
other sensor ports, rinse the front end of the MP TROLL 9500.
To calibrate using a medium- to high-range solution, rinse in tap
water and shake to dry.
To calibrate using a low-range solution, it is important to rinse well;
we recommend a rinse with tap water, then with deionized water,
followed by a rinse with the solution to be used for calibration.
TIP: For highest accuracy, conductivity sensors should be
wetted for 15-30 minutes immediately prior to calibration.
This immersion can be in either clean water or the conductivity
calibration solution.
2. Insure the black PVC base is attached to the Cal Cup, and fill the
Cal Cup with the selected calibration solution.
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the number of sensors installed (fewer sensors require more
solution).
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depending on the sensor load. You need enough
solution to immerse the sensor’s side ports.
3. Insert the front end of the MP TROLL 9500 into the
open end of the Cal Cup. Thread the Cal Cup onto
the body until seated against the o-ring, then back
off slightly to avoid overtightening.
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should be completely immersed.
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completely immersed.
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about an inch of liquid.
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the sides or bottom of the Cal Cup to dislodge
them. Or invert the Cal Cup a couple of times.
4. Connect the MP TROLL 9500 to a PC and establish a connection
in Win-Situ 4 or Pocket-Situ 4. Win-Situ screens are illustrated
here. The Pocket-Situ interface is similar, with the Navigation tree
at the top of the screen and the Information pane below it.
5. Select the MP TROLL 9500 in the Navigation tree.
The software will detect and display the installed sensors. If any
sensor is installed in the wrong port, an error message will be
displayed. Simply remove the sensor and install it in the correct
position, then “refresh” the device before continuing.
6. Select conductivity in the Parameters list. The sensor serial num-
ber (SN), type, and recent calibration information is shown.
7. Select Calibrate.
The Conductivity Calibration Wizard starts. Available calibration
ranges will depend on the sensor installed (high or low range)
8. Select the calibration solution the sensor is soaking in.
For a custom solution, select Other and enter the Specific Conduc-
TANCE
9. Select Next to continue.
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SECTION 12: CONDUCTIVITY
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