In-Situ Aqua TROLL 100 and 200 Operators Manual - Manual (Page 70)

Page 70 Aqua TROLL Operator’s Manual
4 Surface Water: Gently agitate the instrument. Natural water
flow will help to prevent bubbles.
4
Groundwater Well, or any location without flowing water or
where the instrument cannot be seen:
1. Lower the Aqua TROLL instrument until it is below the
surface of the water. (Tip: This can be determined if not
visible by monitoring the pressure/depth readings.)
2. Allow the conductivity sensor to be thoroughly wetted (at
least 30 seconds).
3. Briskly agitate up and down several times, while not taking
the device above the water surface.
4. When the conductivity readings stabilize, the Aqua TROLL
is ready for deployment.
Installation of a Non-Vented Aqua TROLL
Aqua TROLL 100 and non-vented Aqua TROLL 200
instruments do not require vented cable for proper
operation. They may be deployed on non-vented
RuggedCable or with a twist-lock hanger and stainless
steel suspension wire.
• Because the twist-lock hanger has no communication
capabilities, program the Aqua TROLL in advance, and
download the data the same way.
• Logged pressure data will show the effects of changes
in barometric pressure (unlike vented Aqua TROLL 200
sensors). However, post-processing tools such as Win-
Situ Baro Merge may be used to eliminate the effects of
barometric pressure changes from the data, if required.
Section 7: Field Installation
TIP: Be sure
to program a
non-vented
Aqua TROLL before attaching
the twist-lock hanger,
as this accessory has no
communication capability.
DO NOT submerge
a non-vented Aqua
TROLL without first
attaching a twist-lock hanger, or
a cable, because the unit could
be damaged by flooding.