14
pH/mV Amp
of seconds, and the 10 Hz filter setting should be used with these
electrodes.
The Mains filter,
, removes 50 or 60 Hz interference due to
mains hum. See the
Chart Software Manual
for more information.
Inverting the Signal
Ticking the Invert checkbox,
, reverses signal polarity (that is
positive and negative signal values are reversed).
Units
Clicking the
button access the Units Conversion dialog box.
However, when using Chart software for recording data from pH and
ion selective electrodes, where single or double point calibration is
employed, use the pH Calibration extension, see
Chapter 3
— do NOT
use Units Conversion. Where multiple point calibration (more than two
points) is required, use the Multiple Point Calibration extension. Both
extensions are available from the eDAQ website (www.eDAQ.com)
For more information about Units Conversion, see the
Chart Software
Manual
or
Scope Software Manual.
Setting up the Temperature Amp
Signal Display
The input signal is displayed so that you can see the effect of changing
the settings — no data is actually recorded when setting up the
Temperature Amp. The average signal value is displayed at the top left
of the display area. Slowly changing waveforms will be represented
quite accurately, whereas quickly changing signals will be displayed as
a solid dark area showing only the envelope (shape) of the signal
formed by the minimum and maximum recorded signals.
You can stop the signal scrolling by clicking the Pause button
. Click
the Scroll button
to re-start scrolling.
You can shift and stretch the vertical Amplitude axis to make the best
use of the available display area (see the Input Amplifier dialog in the
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