HT instruments М75 - Manual (Page 15)

M72 - M73 - M74 - M75
EN - 13
8. Example of AC current displaying. The
minimum limit of AC current is:
1.0mV x transduction ratio of the clamp
lower values are nullified.
AC current value
Frequency value
The minimum reading value of AC and DC current is given by the herewith:
1mV x transduction ratio of the clamp
Therefore, with a clamp 400A/400mV, the minimum measurable current is 1.0A.
Lower input values are displayed as 0.0A
9. To pass to frequency measurement press MODE/PEAK for less than 1 second (only
during AC current measurements)
10. To detect the current peak value press MODE/PEAK for more than 1 second (see §
4.6.3)
11. To block the detected values on the display press FUNC/HOLD for less than 1
second (see § 4.6.1)
12. To detect maximum, minimum and average current values press FUNC/HOLD for
more than 1 second (see § 4.6.2)
Frequency measurement
1. In order to detect minimum, average, maximum and peak values of frequency it's
necessary to pass to this measuring parameter.
2. It’s possible to pass to frequency measurement by pressing MODE/PEAK for less than
1 second
3. Example of display of frequency value.
The minimum reading limit of frequency
is 30.0Hz. Lower input values are
displayed as <30.0Hz
Frequency value
4. To resume voltage measurement press MODE/PEAK for less than 1 second
5. To detect the frequency peak value press MODE/PEAK for more than 1 second (see §
4.6.3)
6. To block the detected frequency value on the display press FUNC/HOLD for less than
1 second (see § 4.6.1)
7. To detect maximum, minimum and average frequency values press FUNC/HOLD for
more than 1 second (see § 4.6.2)