User Manual

22 GMC-I Gossen-Metrawatt GmbH
Control Functions
Example
The voltage measuring range is set manually to 10 V.
The first measured value is 5 V, which is stored to memory
because it is greater than 10% of the measuring range (= 1 V),
and is thus reliably above the background noise level. As soon as
the measured values drops to less than 10% of the measuring
range, i.e. amounts to less than 1 V which corresponds to
removal of the test probes from the measuring point, the
instrument is ready to store a new value.
4.4.1 Saving Minimum and Maximum Values – MIN/MAX Function
Minimum and maximum measured values applied to the
measuring instrument’s input after the Min/Max function has been
activated can be “frozen” at the display. The most important use
of this function is the determination of minimum and maximum
values during long-term measured value observation.
The Min/Max function can be activated in all measuring functions.
The Min/Max function has no effect on the analog display, at
which the momentary measured value continues to appear.
Apply the measured quantity to the instrument and set the
measuring range with the MAN / AUTO key before activating the
Min/Max function.
The Min/Max function is deactivated by pressing and holding the
DATA/MIN/MAX key (for approx. 1 second), when the measuring
function is changed or when the instrument is switched off and
back on again.
Note

As opposed to the DATA function, the Min/Max function
can also be used for temperature measurement.
Min/Max
Function
Press
DATA /
Min/Max
Min. and Max.
Measured Values
Response from Instrument
Display
Acoustic
Signal
Measured Value
Digital
Max.
Min.
1
Activate
and save
2 x brief are saved
Momentary
measured
value
Max
and
min.
2 x
2
Save and
display
Brief
Storage continues in
background,
new min. and max.
values are displayed.
Saved min.
value
Min. 1 x
Brief
Saved max.
value
Max. 1 x
3
Return to 1
Brief
Same as 1,
stored values are not
deleted
Same as 1
Same
as 1
1 x
Stop Long Are deleted
Momentary
measured
value
Is
de-
leted
2 x