5
Introduction
The TDT1000 is a hand-held device used to check that a depth transducer is functioning properly by
testing its impedance. The TDT1000 works with all Airmar transducers and most other brands.
When combined with the SensorCheck™ app on a wireless iOS or an Android device, it can be use
to test a transducer’s characteristics. Airmar transducers will be compared to the original factory-test
data. TDT1000 results can be shared with a boat owner, dealer, installer, or an Airmar technician.
How Impedance is Measured
Transducer impedance measurements are taken by applying a small voltage to the transducer at the
frequency being measured. The impedance is calculated by comparing the voltage, current, and
precise timing between voltage and current. While these measurements are in process, the
transducer creates sound waves in the water.
WARNINGS
Follow the precautions below for optimal product
performance and to reduce the risk of property damage,
personal injury, and/or death.
WARNING
: Lithium-ion batteries may be hazardous and can present a
serious fire hazard if damaged, defective, or improperly used. Exposure
to liquids, especially saltwater, can cause internal corrosion, damage to
the cells, or to the battery management system. Batteries should be
recharged within 24 hours of a full discharge. Do not charge at
temperatures below 40°F (4°C).
CAUTION
: The transducer must be connected to the TDT1000 through a
test cable. Do NOT connect the transducer directly to the TDT1000.
CAUTION
: You must have the correct test cable for the transducer being
tested. Each OEM has specific test cables that work with their
transducers. You must use the test cable that matches the brand of the
transducer/instrument.
CAUTION
: The transducer and test cable must be connected to the
TDT1000 before starting a test. Do NOT connect or disconnect a transducer
while testing is in progress. Doing so may damage the TDT1000.
CAUTION
: Prolonged operation of the transducer in air may cause it to
overheat, possibly resulting in failure.
IMPORTANT
: To compare the test results of two transducers, they must
both be tested in the same environment. Test results are very different
when a transducer is tested installed in a hull in deep water compared to
using a test block.
IMPORTANT
: Please read the instructions completely before proceeding.