Zeroing of d.c. mV (no a.c. mV zero facility)
To zero the d.c. mV range, short the leads together in the
d.c. mV position, wait for the reading to settle and then press
the TEST button. Up to 9,9mV can be zeroed on the d.c. mV
range. The symbol
will appear to indicate the zero has
been adjusted.
1. Select the d.c. mV range.
2. Short the test leads together.
3. When the reading has stabilised, press the TEST button.
The zero offset symbol
will appear.
4. To release the zero offset press the TEST button again.
To view the frequency of the a.c. mV being measured press the
key. The frequency will be displayed in the range 16Hz-
460Hz. To view a.c. mV press the
key again. For inputs
less than 10mV frequency is not displayed.
Capacitance Tests (uF) (BMM2080 only)
The measured capacitance is indicated on the display.
1. Set the selector switch to uF.
2. Connect the test leads to the circuit under test.
3. After a short settling time, the reading will be displayed
automatically.
Zeroing of uF
To zero the uF range, disconnect the leads, wait for the reading
to settle and then press the TEST button. Up to 10,0nF can be
zeroed on the uF range. The symbol
will appear to
indicate the zero has been adjusted.
1. Select the uF range.
2. Disconnect the test leads from the circuit under test.
3. When the reading has stabilised, press the TEST button.
The zero offset symbol
will appear.
4. To release the zero offset press the TEST button again.
The range is suitable for the testing of discrete components
and short low interference level signal lines. If electrolytic
capacitors are being tested then the red lead should be
connected to +ve of the capacitor. This range is not suitable for
checking capacitance of signal lines which are subject to high
levels of a.c. interference.
When the test is started --- will show on the display, if there is
excessive noise this symbol will remain or flash indicating that
there is too much noise for a result to be reached.
Milliamps Tests (mA) (Not BMM2000ESD)
Because of the low source impedance associated with current
measuring this test has an added feature ensuring that when
the range is first entered the default voltmeter is visible. Testing
will be inhibited if more than 25V is present at the terminals. To
start testing the TEST button should be pressed and held down
for approximately 2s to activate the mA range. Once activated,
the TEST button no longer needs to be used and the measured
value will be displayed automatically. To switch the display
between a.c. and d.c. press the
key.
~
