Conrad M-4660M Bedienungsanleitung Seite 10

The different basic measuring ranges are selectable by turning the
switch:
DCV = DC voltage (blue, 5 ranges)
ACV = AC voltage = alternating voltage (blue, 5 ranges)
ACA = AC ampere (red, 3 ranges)
DCA = DC ampere = direct current measurement
(red, 3 ranges)
hFE = Transistor test (yellow, 1 range)
LOGIC = Logic measurement (yellow, 1 range)
CAP = Capacitance measurement (yellow, 2 ranges
Hi and Lo, and/or 2 internal with automatic
switching)
FREQ = Frequency measurement (yellow, 1 range and/or
4 internal with automatic switching)
mH = Inductance measurement (yellow, 1 range)
POWER = True power measurement (red 1 range or 2
internal with automatic switching)
= Diode test/acoustic continuity test (grey, 1 range)
/
Ohm = Resistance measurement (grey, 6 ranges)
d) 20-A-Input Socket
For DC- and AC-current measurements to max. ! 20 A. Insert the Red
test-lead into the input socket.
Attention!
During current measurement the measuring function switch must never
be set to voltage measurement (mV or V).
e) mA-Measuring Socket
For measurements to 200 mA max.!, connect the red test-lead, pay
attention that the measuring function switch is set to position
"2 mA" or "200 mA".
14
f) COM = common socket
In this case, the black connecting cable must be inserted for all mea-
surements, except capacitance or inductance measurements (common-
socket signifies minus or "−" or ground socket).
g) V/Ω-Socket
For measurement of voltage, frequency, resistance, continuity, diodes
and logic tests plug in the red test-lead in this terminal.
h) For power measurement, the measurement adapter (optionally avai-
lable) must be fitted to all sockets.
4.3.4 Display Explanation and Symbols
a) Digital Display
Digital readings are displayed the main- and the sub-displays (small
displays) on a 19999-count basis with automatic polarity indication (-),
(for negative voltage or reversed polarity). There are four decimal
point positions.
b) Analogous Bargraph
The bargraph consists of 43 segments and is faster than the digital
display. It functions like the needle of an analogous measuring instru-
ment, but without its mechanical disadvantages. Is is especially for
quick changing measuring signal, for which the digital display is too
"slow". So you can quickly see tendencies in the measuring values.
If the measuring range is exceeded "OL" for Overload is displayed the
bargraph is flashing and a warning sound sound is emitted (no acou-
stic signal during measurement of resistance, and diode).
c) Data-Hold "D-H"
In this mode you can freeze a reading in the second ("small") display
by pressing the SET/R button. To exit this subfunction hold down
SET/R button or FUNC for a few seconds or turn the function selector
switch (observe the safety rules). Afterwards you return to the basic
setting.
d) Auto Hold A-H
In this function the meter will automatically record the minimum and
the maximum display reading, MIN and MAX values. These values are
currently updated = refreshed. The MIN-value is shown on the left
15