Simrad ES80 Reference Manual page 409

BITE: Transducer page
The ES80 can be set up to work with one or more transceivers. In turn, each transceiver
is assigned one or more transducers. By means of the
the impedance of each transducer during normal operation. Any errors are then easily
detected.
How to open
This page is located in the
menu.
Setup
Description
The transducer impedance is measured in real time during each transmission ("ping").
For CW transmissions, the impedance and phase values for each transducer sector are
provided in a tabular format. For LFM transmissions, the results are shown in two plots.
An operational transducer element will have an impedance of approximately 75Ω ±40%.
However, various transducers will have different values, and you need to check the
relevant data sheet. Composite transducers have a relatively flat impedance curve. Older
transducers with "ton-pilz" elements have a slightly higher impedance at the beginning
of the ping. This is by design.
• If you measure ∞Ω (open circuit), you can assume that the transducer impedance
transformer has broken, or that the cable is damaged.
• If you measure 0Ω (short), you can assume that either the transducer impedance
transformer or the cable has shorted. You may also have a problem with salt water
penetration.
• The transducer impedance is a complex value, and it has a phase. This phase should
be as small as possible. A large phase means that you loose output power.
Tip
Each transducer is added using the
page is located in the
Installation
located on the
Setup
406273/C
dialog box. You open the
BITE
Transducer Installation
Installation
menu.
Functions and dialog boxes
Transducer
dialog box from the
BITE
page. The
dialog box. The
Installation
page, you can check
Transducer
dialog box is
407