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TLM100
Tank Level Monitor
(40” Depth)
Maretron’s TLM100 is used to sense fluid levels of tanks by
using ultrasonic technology. Ultrasonic, or sound waves,
are transmitted via the TLM100 mounted at the top of the
tank and the flight times of the sound waves to and from
the fluid are measured much like a depth sensor. What
this means for you is that there are no difficult to handle
long probes protruding into the tank, which often foul and/
or corrode. Once the TLM100 calculates and transmits the
fluid level over the NMEA 2000
®
network, you can observe
tank levels anywhere on the vessel where there is an NMEA
2000
®
compatible display such as the Maretron DSM250.
The TLM100 is capable of sensing fluid levels in tanks up to
40” (1.02m) in depth. It can be used for diesel, fresh water,
waste water, black water, and oil tanks (see TLM150 for
gasoline tanks or TLM200 for deeper tanks). Unlike most
tank senders that only work with rectangular tanks, the
TLM100 can be calibrated for irregular tank shapes so you
can know the true fluid level in your tanks.
The TLM100 is mounted directly to the top of tanks using
the industry standard SAE J1810 5-hole mounting pattern.
The TLM100 can also be mounted to tanks with threaded
tank openings using optional adapters that included both
a 1.5” NPT and a 1.25” BSP adapter. There are other
important TLM100 optional accessories including an airlock
for black water applications, which keeps the face of the
ultrasonic transmitter from fouling and an optional focus
tube to permit use on boats with planing hulls, which is
required if the vessel spends a significant amount of time
with the bow pitched up.
Most importantly, the TLM100 is NMEA 2000
®
certified
so you can view any and all tank levels anywhere on the
vessel when using a compatible NMEA 2000
®
display. The
TLM100 is another key component of Maretron’s N2KView
®
vessel monitoring and control system.
Products
PART NUMBER DESCRIPTION
TLM100-01 Tank Level Monitor (40” Depth Tanks)
TA-5H-1.25BSP 1.25” BSP Displacement Hull Tank Adapter
TA-5H-1.5NPT 1.5” NPT Displacement Hull Tank Adapter
TAL-5H SAE 5-Bolt Pattern Black Water Airlock
TAL-1.25BSP 1.25” BSP Black Water Airlock
TAL-1.5NPT 1.5” NPT Black Water Airlock
TFT-5H SAE 5-Bolt Pattern Non-Displacement Hull Focus Tube
TFT-1.25BSP 1.25” BSP Non-Displacement Hull Focus Tube
TFT-1.5NPT 1.5” NPT Non-Displacement Hull Focus Tube
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