In-Situ RDO Sensor for TROLL 9500: Installation, Calibration, and Care (purchased after 09/2008) User Manual
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INSTallINg ThE RDO SENSOR
Install two D alkaline batteries in the TROLL 9500 instrument.
1.
Remove the standard restrictor or Cal Cup from the TROLL 9500
2.
instrument (if attached). This allows access to the sensor block.
Determine the installation port(s) for the RDO sensor. For the cable
3.
connect, choose port 1 or 3. For the direct connect, you must use both
ports 2 and 3. Ports 1 and 4 will be available for other sensors.
Cable connect
R
DO
Direct connect
Use the Sensor Removal tool to remove the plug or existing sensor
4.
from the appropriate port(s).
TIP: If installing the cable connector in port 3, you may wish to
remove the port 2 sensor temporarily (if installed).
Attach the RDO sensor to the TROLL 9500:
5.
a.
For the direct connect sensor, remove
the soft cap from the connector end of
the RDO sensor. Plug the sensor pins
into port 3. The sensor will overlap the
white port plug and the dummy will sit
in port 2. Proceed to step 6.
For the cable connect sensor, insert the front end of
b.
the TROLL 9500 through the large hole in the adapter,
alongside the RDO sensor.
Remove the soft cap from the connector end of the RDO
c.
cable. Using the alignment notch, align the 3-pin connector
on the cable harness with the connector in the selected port
(1 or 3) of the TROLL 9500 and press it firmly into the port
until it sits flush with the instrument.
d.
Press down on the adapter until the
instrument's sensor block is flush with the
adapter plate surface. Align the RDO
sensor between sensor ports 1 and 2.
Align the open hole for the RDO sensor
cable beside port 1.
Tighten the adapter screw with a Phillips screwdriver. Do
e.
not overtighten.
Remove the RDO sensor cap from its shipping/storage sleeve. Align
6.
the arrow with the index mark and firmly press the cap onto the sensor,
without twisting, until it seals over the probe body. Make sure that the
o-rings are not pinched or rolled between the cap and the sensor.
Avoid allowing moisture, including atmospheric humidity, inside
the cap. Keep the cap in its sealed packaging until you are ready
to install it. Install promptly. Make sure that o-ring grooves are dry
and the o-ring is not rolled or pinched inside the cap.
The cap's lifetime is 1 year after the first reading has been taken
with the TROLL 9500 instrument. Install by the date printed on
the packaging.
Perform a 2-point calibration on the sensor, as described below.
7.
Attach the flow restrictor and nose cone.
8.
Cable connect
Direct connect
If using a cable connect sensor with a turbidity sensor or turbidity
9.
wiper, pull the slack in the adapter cable up against the probe so that it
does not interfere with wiper movement or turbidity readings.
INITIal 2-POINT CalIbRaTION
For best results, perform a 2-point calibration at 100% and 0% saturation
before going into the field.
Procedure
Connect the TROLL 9500 instrument to a PC or RuggedReader
1.
handheld PC.
Launch Win-Situ 4 or Pocket-Situ 4; and "Find" the device. Select the
2.
TROLL in the Navigation tree. The software will automatically detect
and display the installed sensors. (This can take a moment.)
In the Navigation tree, under
3.
Parameters, click on Rugged Dissolved
Oxygen. On the right side of the screen, click Calibrate.
Three options appear. To perform a calibration, select the first or
4.
second option:
• Calibrate: Starting from values stored in the sensor (user-set or factory
defaults) for the 0% and 100% calibration, this allows the user to redo
one or both calibration points
• Restore defaults, then calibrate: Restores factory defaults for both 0%
and 100%, then allows the user to redo one or both calibration points.
• Restore defaults, don't calibrate: Restores factory defaults for both
0% and 100% saturation and closes the Calibration Wizard.