HT instruments HT9022 - Manual (Page 33)

HT9022
EN - 31
5.5.1.3.1. Key F4 “Fnz” in DC Voltage and Current measurement
While measuring Voltage and Current, press key F4 (Fnz) to
open the drop-down menu shown on the screen to the side. At
each subsequent pressure of key F4, the cursor will scroll
through the available items, as follows:
• Max: it constantly displays the maximum value of the
measured parameter;
• Min: it constantly displays the minimum value of the
measured parameter;
• Cr+: it constantly displays the maximum positive crest value
Mod Par OK Fnz
D C
8 0 . 0 V
2 0 . 0 A
19/01-17:00:00
measured;
• Cr-: it constantly displays the minimum negative crest value measured;
• Zero: it zeroes the measured DC current;
• Rst: it deletes all stored Max, Min, Cr+ and Cr- values;
• Esc
: it goes back to a normal measuring mode.
WARNING
Note: carry out current zeroing before clamping the conductor.
By pressing key F3 (OK), the selected item is confirmed.
To the side, an example of measurement with active Max
function. The display shows the active function.
Mod Par Sys Fnz
M a x D C
8 0 . 0 V
2 0 . 0 A
19/01-17:00:00
5.5.1.4. DC Energy
The screen shows an example of DC Energy measurement.
Mod Par Sys Fnz
D C
2 . 2 0 k W h
L o g
19/01-17:00:00
5.5.1.5. Hold
Short pressing key “H” activates the function Data HOLD. The display shows the message
“
H ” and the screen of the measurement in progress is “frozen”.
This operating mode is deactivated when key “H” is pressed again or the switch is
operated.
5.5.1.6. Backlight
Long pressing key “H” activates or deactivates the display backlight. This function
automatically deactivates after approximately 10 seconds after being activated, in order
not to discharge the batteries.
Max
Min
Cr+
Cr-
Zero
Rst
Esc