Edgetech PPM1, Руководство оператора, Страница: 15 / 29

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select Display parameters, press “D” for Display. (We will C)alibrate the Outputs
and modify the R)s232 later.)
Note that initially, the displays are showing
units of ppmv (parts-per-million by volume)
and Dew Point in degrees C. First, we will
change ppmv to ppmw (parts-per-million by
weight).
You are given a choice whether to keep the
present units or to C)hange them. In this
case, we will select to C)hange them. Press
“C” on your keyboard. Select “Value 1” to change ppmv.
NOTE:
PRESSING THE SPACE BAR SCROLLS
THROUGH ALL THE AVAILABLE
SELECTIONS. PRESS “ENTER” TO
SELECT THE ONE YOU WANT TO KEEP.
Press the Space Bar several times to see
what units are available. When you see
ppmw, press “Enter”. You will then see the
win
dow below. Press “Enter” again.
Than, you will be given a choice whether to
A)ccept or C)hange this modification. Press
“A” for A)ccept.
5.4.3 CHANGING THE
ANALOG OUTPUT RANGES
Continuing on, you will now be
given the opportunity to modify
the Analog Outputs. You do not
have to go back to the main
menu to do this, since it will
automatically be the next step.