DeltaOHM HD31, Operating Manual

Page: 18 / 154

HD31
- 18 -
V1.6
3.6 D
ISPLAYING THE RELATIVE MEASUREMENT
(REL)
The instrument allows the relative measurement of the quantities to be displayed, i.e. the dif-
ference between the current measurement value and a reference value, consisting in the mea-
surement value at the moment of the REL function activation.
To activate the relative measure:
1. Select the quantity you want the relative measure to be enabled, using
S
and
T
.
2. Press SELECT to display the REL
command in the command bar,
then select the command by press-
ing F3 .
3. The selected measurement line shows the difference between
the quantity current value and the reference value, consisting in
the measurement value at the moment of the REL command
activation. The reference value is displayed in the upper part of
the measurement line (followed by the symbol REL ).
Select again the REL command ( F3 key) to disable the display of the relative measure and re-
turn to the current measurement value.
3.7 H
OLDING THE MEASUREMENT ON THE DISPLAY
(HOLD)
The HOLD function holds the current measurement values on the display. The function affects all
the measurement lines. When the HOLD function is active, the measurement values on the dis-
play are not updated, but remains set to the value present at the moment of the function activa-
tion.
Press
HOLD to activate the function. The function activation is highlighted by the orange bars
over and under the measurement area on the display, and by the word HOLD flashing in the
top bar. The clock in the bottom bar remains stopped to the moment the key was pressed.
Fig. 3.7.1: HOLD function activation
Press again HOLD to disable the HOLD function and return to the current measurement val-
ues.
Orange bars
Reference value