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if a high value is to be set.
This key has two functions; in the
first, when Q is set, it increases the
value; the second function enables
the serial output. When the key is
pressed only once, the figure
shown on the display is sent to the
serial output. If the key is pressed
for more than three seconds the
continuous serial output is enabled;
this means that what is shown on
the display is sent continuously to
the serial output every 10 seconds.
To quit, press the key.
During Q setting the serial output is
disabled.
During setting of the maximum Q
threshold this key is used to
decrease the set value.
Key for selecting the input A probe,
if the probe is not inserted the "Err"
message appears.
Key for selecting the input B probe,
if the probe is not inserted the "Err"
message appears.
Key for displaying the difference in
value between inputs A and B; if no
probe is inserted, or if the probes
are of a different type, the message
E1 appears.
ENGLISH
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Symbols lit besides
the numbers
Key
Description
A
B
A-B