In-Situ Level TROLL Data Loggers Care & Maintenance Guide - Manual (Page 5)

Instruction Sheet
Antifouling Products
TROLL Shield Nose Cone
The copper TROLL Shield Nose Cone is designed to
reduce macro- and micro-fouling of the pressure sensor
on Level TROLL and Aqua TROLL Instruments.
Reduced fouling on the sensor improves measurement
accuracy and extends the length of deployments.
For optimum performance, the TROLL Shield Nose
Cone should be replaced every 12 months or sooner if
site conditions are extremely harsh.
Description Part Number
TROLL Shield Nose Cone 0081480
TROLL Shield Guard
The antifouling TROLL Shield Guard is designed to
reduce the fouling of the conductivity cell on Aqua
TROLL 100 and 200 Instruments. Reduced fouling on
the sensor improves accuracy and extends the length of
instrument deployments.
For optimum performance, the TROLL Shield Guard
should be replaced every 6 months.
Description Part Number
TROLL Shield Guard 0085190
O-ring Inspection and Replacement
Examine O-rings for wear, dryness, discoloration,
stretching, cracks, nicks, and brittleness. Replace when
any of these conditions are present. Replacing O-rings
on a regular schedule, regardless of O-ring condition, is
the best way to protect against damage.
Perform the following steps to replace an O-ring.
1. Remove and discard the damaged O-ring.
2. Use a clean, dry, soft cloth to clean the O-ring
groove to remove dirt or residue.
3. Lubricate the new O-ring using high-vacuum
grease.
a. Wash your hands thoroughly.
b. Apply a small amount of grease to the pad of
your index finger, and rub your index finger
and thumb together to spread the grease
evenly.
c. Inspect the new O-ring and remove any
debris stuck to it.
d. Rub your fingers around the O-ring until
there is a thin layer of grease on the entire O-
ring.
4. Install the O-ring in the groove and remove any
excess lubricant with a clean cloth.
Do not allow water or lubricant to enter the
connector.
Factory Calibration Services
In-House Factory Calibration
Factory calibration of In-Situ Inc.instruments should be
performed every 12 months, or when the unit data
appears to drift significantly. Factory calibration includes
a thorough cleaning, full functionality check, and
adjustments of the pressure sensor, temperature
sensor, and conductivity sensor (when applicable) over
the entire calibrated temperature range.
Return Materials Authorization (RMA) Form
To obtain a factory calibration, fill out and return the
online Return Materials Authorization (RMA) form
located at www.in-situ.com/Return_authorization.
Guidelines for Cleaning Returned Equipment
Please help us protect the health and safety of our
employees by cleaning and decontaminating equipment
that has been subjected to any potential biological or
health hazards, and labeling such equipment.
Unfortunately, we cannot service your equipment
without such notification. Please complete and sign the
form in your Operator’s Manual (or a similar statement
certifying that the equipment has been cleaned and
800-446-7488 5 www.in-situ.com