![background image](http://html2.mh-extra.com/html/omega/hhm9007r/hhm9007r_user-manual_4023396010.webp)
and make the voltage measurement reduce the range
setting if set too high until a satisfactory reading is
obtained.
6. After completing the measurement, turn off power to the
circuit / device under test, discharge all capacitors and
disconnect the meter test leads.
7. V
+
,mV
+
AC+DC TRUE RMS function AC+DC TRUE
RMS =
(AC RMS component)
2
+ (DC component)
2
.
µA/mA/20A CURRENT
MEASUREMENTS
1. Set the Function/Range switch to the " µA or mA/20A "
position. Use the "SHIFT" button to select the DC or AC
or AC+DC current test.
2. Connect the red test lead to the "µA / mA or 20A" jack and
the black test lead to the "COM" jack.
3. Connect the test leads to the point of measurement and
read the current from the display.
4. µA
+
, mA
+
, 20A
+
AC+DC TRUE RMS function AC+DC
TRUE RMS =
(AC RMS component)
2
+ (DC
component)
2
.
RESISTANCE / CONDUCTANCE
MEASUREMENTS
1. Set the Function/Range switch to the " /
/
/ ns"
position. Use the "SHIFT" button to select the " " or "ns"
resistance test.
2. Turn off power to the circuit under test. External voltage
across the components causes invalid reading.
3. Connect the red test lead to the "V " jack and the black
test lead to the "COM" jack.
4. Connect the test leads to the points of measurements
and read the value from the display.
CONTINUITY MEASUREMENTS
1. Set the Function switch to the " /
/
/ ns" position.
Use the "SHIFT" button to select the "
" continuity
test.
2. Turn off power to the circuit under test. External voltage
across the components causes invalid reading.
3. Connect the test leads to the two points at which
continuity is to be tested. The buzzer will sound if the
resistance is less than approximately 40 .
8