Robert Bosch LLC MMD 540H Instruction Manual | Version 1 | December 2010 MMD 540H Instruction Manual | Version 1 | December 2010 Robert Bosch LLC
Meter Functions – Capacitance (CAP)
IMPORTANT: Turn the power OFF to the test circuit
fSelect the Capacitance “CAP”
function with the rotary switch
and mode button
Insert:
fBlack lead in COM terminal.
fRed lead in V-Ω-RPM terminal
CAUTION: When checking in-
circuit capacitance, be sure that
the circuit has all power removed
and all capacitors are fully
discharged.
Touch the test lead probes across
the capacitance circuit to be tested.
Read the measured value from the
LCD display.
NOTE:
1. The bar graph is disabled in
capacitance measurement mode.
However, since the measurement
time of 4mF and 40mF modes
is quite long (3.75s and 7.5s
respectively, to be precise), the bar graph is instead used to
display the time required to accomplish the measurement.
2. In order to obtain an accurate reading, a capacitor must be
discharged before measurement begins. The meter has a built-
in discharge mode to automatically discharges the capacitor. In
discharge mode, the LCD displays “DIS.C”
3. Discharging through the chip is quite slow. We recommend the
user to discharge the capacitor with some other apparatus.
16 | MMD 540H Hybrid Multimeter | Meter Functions
Meter Functions – Audible Continuity ( )
IMPORTANT: Turn the power OFF
on the test circuit
fSelect the Audible Continuity
“ ” function with the rotary
switch and mode button.
Insert:
fBlack lead in COM terminal.
fRed lead in V-Ω-RPM terminal.
Connect one test probe to each
end of the circuit to be tested.
fCircuit complete, the meter will
beep continuously.
fCircuit open, there is no beep
and the display shows to OL
(over limit).
MMD 540H Hybrid Multimeter | Meter Functions | 17
Black– Red+
Circuit open
- no beep
Black– Red+
