Extech Instruments CO80, Руководство пользователя

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CO80 V3.1 04/06 27
After the required stabilisation
time period (60 seconds) has
been achieved, press and
hold the
“Light”
key - this
“drops” the live pressure at
that particular time to the
bottom of the screen. The
display alternates between
“P1”
and the “dropped”
pressure
(see example 5.11
for an example)
.
After the test period has been
achieved, press and hold
“Light”
again to clear the
alternating display of
“P1”
and
the “dropped” pressure
reading. A solid
“P2”
is
displayed at the bottom of the
screen.
Press and hold
“Light”
for the
second time to “drop” the
second (end of test) pressure
to the bottom.
The display will alternate
between the
“P2”
and the
“dropped” pressure for this
part of the test.
After 3 minutes and 6
seconds (displayed as 306
– 3 minutes and 6
seconds), the “start” and
“finish” results are the
same
5.1.2. Soundness/Tightness Test (Cont.)
Display
alternates
between
”P2”
and the
“dropped”
pressure when
single pressure
reading is made