Fluke PN 643657 Welder User Manual


 
Model 16 English Instruction Sheet
Page
4
W
V
Check
If a dc or ac voltage greater than about 4.5V is present across the inputs
when the meter is set to
R, G, or e, the meter switches automatically
to dc or ac voltage mode (VCheck mode).
W Warning
Repetitive transients on a dc bus will cause VCheck to
select ac volts, even though a hazardous dc voltage may
be present. To avoid a misleading display and possible
electric shock, manually select the proper volts function
for measurements on these circuits.
When VCheck is activated, the meter has low input impedance (LoZ)
2 k. This load can alter the voltages in electronic control circuits. Do
not use VCheck to measure voltage in circuits that could be damaged by
a 2 k load.
Hint: VCheck can be effectively used to eliminate “ghost” voltages.
16
MULTIMETER
OFF
600V
COM
CAT
+
A
TEMPERATURE
V
Check
or
If AC detected
If DC detected
Meter puts 2 k
load on circuit.
Disable and re-enable V•Check
For , and ,
Disables V•Check and
locks meter in selected
mode.
2 sec
or
or
Re-enables
V•Check
ip09i.eps