Amprobe AC50A - Manual (Page 10)

Resistance Measurements / Continuity
� Disconnect the UUT from all sources of supply and check that it is at
zero voltage.
1) Turn selector switch (2) to Ω/
2) Plug the black test lead into the “COM” socket and the red lead into
the “+” socket
3) Connect the probes to the UUT and read the display
If the display is not visible during measurement, press the “HOLD”
button (3) to retain the display. The probes can then be removed from
the conductor and the stored value read.
Continuity: At a resistance less than 40 Ω (< 40 Ω) a signal is audible.
MIN/MAX and peak values/ Auto Power Off
The MIN/MAX button can be used to find either the largest or the smallest
value of a series of measurements. Pressing the MIN/MAX button activates
first the MIN mode, so that the smallest value is selected.
Pressing it a second time changes to MAX mode, for the largest value.
Pressing the button a third time returns the instrument to normal
operation.
8
40
mA
4 A
60
A
40
A
OF
F
Z ER
O
M
IN
/M
A X
H
O L D
CO
M
0
10
20
30
40
60
0 V
A C
40
0 mA