Fluke 87 V - Manual (Page 34)

80 Series V
Users Manual
26
3. If you are using the A terminal, set the rotary switch to
mA/A. If you are using the mA/ μ A terminal, set the
rotary switch to μ A for currents below 6000 μ A
(6 mA), or mA/A for currents above 6000 μ A.
4. To measure dc current, press A.
5. Break the circuit path to be tested. Touch the black
probe to the more negative side of the break; touch
the red probe to the more positive side of the break.
Reversing the leads will produce a negative reading,
but will not damage the Meter.
6. Turn on power to the circuit; then read the display. Be
sure to note the unit given at the right side of the
display (
μ A, mA, or A).
7. Turn off power to the circuit and discharge all high-
voltage capacitors. Remove the Meter and restore the
circuit to normal operation.
The following are some tips for measuring current:
• If the current reading is 0 and you are sure the Meter
is set up correctly, test the Meter's fuses as described
under "Testing the Fuses".
• A current Meter drops a small voltage across itself,
which might affect circuit operation. You can calculate
this burden voltage using the values listed in the
specifications in Table 14.