In-Situ TROLL 9500 Operators Manual - Manual (Page 13)

6
0095110 rev. 007 01/09 TROLL 9500 Operator’s Manual
CABLES
Several basic cable types are used in the MP TROLL 9500 system:
s
s
smoke zero halide)
Vented cable is recommended for applications where
accurate barometric pressure measurement is required—for
example when calibrating dissolved oxygen, or for
measuring DO in percent saturation.
s
s
required (e.g., with an absolute pressure sensor)
s
the logged data
RuggedCable™
Cable includes conductors for power and communication signals, a
strength member, and a Kellems
® grip to anchor the MP TROLL 9500
securely. Available in standard and custom lengths.
Uphole and downhole ends are identical bayonet-type
Twist-Lock connectors that mate with the TROLL 9500
body, TROLL Com communication cable, desiccants, and
other accessories.
Vented cable is designed for use with vented pressure/
level sensors (gauged measure ments). The cable vent
tube insures that atmospheric pressure is the reference
pressure applied to the pressure sensor diaphragm.
Vented cable also enables proper functioning of the inter-
nal barometric pressure sensor, and improves dissolved
oxygen readings.
Non-vented cable may be used with non-vented pressure/
level sensors (absolute measurements), or instruments
without a pressure sensor.
SECTION 2: COMPONENTS & FEATURES
MP TROLL 9500
Sealed Body
Sealed Battery Compartment
Twist-Lock Connector
Stainless steel Restrictor —
provides generous openings for
circulation of environmental water,
unscrews for installation/removal of
sensors
Acetal Nose Cone minimizes sedi-
ment buildup and protects the front
end from bottoming out on a hard
surface; removable for installation of
optional accessories
RuggedCable
* FEP = fluorinated ethylene propylene, the generic equivalent of DuPont Teflon®.