HT instruments HT9022 - Manual (Page 17)

HT9022
EN - 15
Insert the red cable into the input lead V Ω and the black cable into the input lead COM
(Fig. 5), and position the leads to the desired points of the circuit being tested.
The screen shows an example of DC Voltage measurement.
Mod Par Fnz
D C
1 2 . 0 V
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5.3.1.1. Key F4 “Fnz”
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 DC Voltage;
• Min: it constantly displays the minimum value of the
measured DC Voltage;
Mod Par OK Fnz
D C
12. 0 V
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• Cr+: it constantly displays the maximum positive crest value;
• Cr-: it constantly displays the minimum negative crest value;
• Rst: it deletes all stored Max, Min, Cr+ and Cr- values;
• Esc
: it goes back to a normal measuring mode.
WARNING
Note: the measurement of the 4 Max, Min, Cr+ and Cr- values is
simultaneous, regardless of the one displayed.
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 Fnz
M a x D C
1 2 . 0 V
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5.3.1.2. 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.
5.3.1.3. 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-
Rst
Esc