Maretron TLM150 - Manual (Page 7)

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TLM150 sensor component is 6°. Please refer to Figure 1 below for a diagram of the waves
emitted and received by the TLM150.
Please note that due to limitations of ultrasonic technology, the minimum depth that can be
measured by the TLM150 is 2” (5.08cm).
Figure 1 - TLM150 Operation
2.3 Choosing a Mounting Location
The primary function of the TLM150 is to sense levels of gasoline in tanks using ultrasonic
technology and transmit this information over NMEA 2000
®
network so that gasoline fuel tank
level information can be viewed anywhere on the vessel where there is an NMEA 2000
®
compatible display.
The TLM150 tank level monitor consists of two parts: 1) the sensor, which mounts onto the top
of the tank and contains the ultrasonic level measurement components, and 2) the interface,
which converts the measured data into NMEA 2000
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format and transmits the data over the
NMEA 2000
®
network.
The interface component of the TLM150 may be mounted anywhere, subject to the length of
the cable connecting it to the sensor component.
The sensor component of the TLM150 must be mounted on the tank whose level is to be
monitored. Choosing a proper mounting location for the sensor component of the TLM150 is
critical to obtaining accurate tank level readings. For best results, please follow these
recommendations:
• The sensor component of the TLM150 must be mounted flat, so that the round
transceiver portion of the TLM150 faces straight downward.
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