Cal" Mode - HT MULTITEST M72 User Manual

The message "Measuring" on the display means that the instrument is
measuring. During this phase never disconnect test leads. Connect the
instrument just BEFORE measuring and do not change connections while the
message "Measuring" is present on the display.
9. The continuity test is performed by supplying a current higher than 200mA if the
resistance value is lower than 5Ω (including the cable resistance stored as offset after
calibration). For higher resistance values the instrument performs the test with
decreasing current
10. At the end of the test, if it has been
possible to generate at least 200mA
(not particularly high resistance value),
the instrument emits a double sound to
signal the positive outcome of the test.
The screen beside is displayed
11. At the end of the test, if it has not been
possible to generate 200mA due to the
high resistance value, the instrument
emits a prolonged sound to signal the
negative outcome of the test. The
screen beside is displayed

4.8.1. "CAL" mode

Fig. 9: Connection of the instrument's terminals during calibration procedure
MULTITEST M72 - M73 - M74 - M75
CAUTION
EN - 25
Resistance value
Test current value
Resistance value
Test current value