15
mA Current
Inputs are made via the input terminals
-COM
. Press the
SELECT
button
momentarily to select
DC
,
AC
,
DC+AC and %4-20mA
(
Model 789
only) in sequence.
Last selection will be saved as power up default for repeat measurement convenience
of all current functions.
EF-Detection of Electric Field
Press
EF
button momentarily to enter
EF-Detection
function. Defaults at high
sensitivity
EF-H
. T
he meter displays “
EF-H
” when it is ready.
If it is too sensitive for
your applications, press
EF
button momentarily to select lower sensitivity
“
EF-L
”
. The
detected Electric Field strength is indicated as a series of bar-graph segments on the
display plus variable beep tones. Press
EF
button for one-second-or-more to exit
EF-
Detection
function.
◎
Non-Contact EF-Detection (NCV):
An antenna is located along the top-right
corner which detects the electric field surrounding energized conductors. It is ideal for
tracing live wiring connections, locating wiring breakages and to distinguish between
live and earth connections.
◎
Probe-Contact EF-Detection (Single-pole):
For more precise indication of live
wires, such as distinguishing between Live and Ground connections, use one single
test-probe to test via terminal
COM
for direct metal contact probing to achieve the most
Summary of Contents for BM785
Page 1: ...USER S MANUAL BM789 BM786 BM785 Digital Multimeter ...
Page 22: ...21 ...