Chapter 4 Troubleshooting Guide; General - Fourier TriLog User Manual

Chapter 4
Troubleshooting Guide
4.1.1.

General

Symptom
I pressed the ON key on TriLog
and it did not turn on.
I see voltage units when
sampling using the microphone.
I started a new logging and the
data logger stopped immediately
afterwards.
The recorded data is "noisy"
I turned the calibration screw but
did not obtain the accurate
calibration
TriLog's memory is empty – there
are no stored
104 Chapter 4 Troubleshooting
Cause of problem
•
Try charging the battery, it may be
weak.
•
You are using unsuitable AC/DC
adaptor (see page 11).
•
The internal 3V disk battery is dead.
•
The microphone is monitoring the sound
wave shape, which is displayed in
voltage units. The sound level,
measured in decibel values, is another
mathematical description of the sound
amplitude.
•
First check if the sampling rate was so
fast that the experiment began and
ended in less than a second. If this is
not the reason, recharge the 2.4V
battery and try again. TriLog monitors
the battery power during the logging. If
the battery voltage is not sufficient, the
logging is stopped automatically.
•
With voltage or current sensors, use
short connections between the circuit
being tested and the sensor. In some
cases it is advisable to connect the (-) of
the current sensor to the ground
terminal
•
Avoid working near strong
electromagnetic fields. (e.g. engines,
fluorescent lights )
•
The calibration screw is of high-
resolution type and has 15 turns. Try to
continue turning the screw, or change
the direction of rotation.
•
The internal 3V disk battery is dead.