Battery Replacement
The purpose of the internal 1.5 V, size “AA”, battery is to supply power
tot he circuit under test while making resistance measurements.
Eventually the battery will age to the point where it will not be possible
to zero the meter with the “
OHM ADJ
” control. When this happens the
battery should be replaced.
Observe the proper battery polarity when replacing the battery. It is
recommended that the battery be removed if the MCP9A is not to be
used for a long period of time. Remove the battery compartment cover
for access to the battery.
WARNING!
Disconnect the test leads from the circuit under test and from the meter
prior to removing or installing batteries.
WARNING!
Under no circumstances should you expose batteries to extreme heat or
fire as they may explode and cause injury.
Fuse Replacement
The fuse is in series with the “
OHM
” circuit. If this fuse is open the
OHM circuit will not work. When replacing the fuse be sure to replace it
with a fuse of the same current rating and internal resistance. The use
of a fuse with a different internal resistance may cause the accuracy of
thee “
OHMS
” scale to be off. Remove the screws in the rear of the case
for access to the fuse. Fuse should be 0.5 Amp / 0.5 OHM resistance.
Mechanical Zero Adjust
The pointer is set to register 0 at the left edge of the scale when there
is no input to the MCP4 and it is laying face up on a flat surface. If
the pointer does not register 0, it may be reset to that position by
carefully adjusting the black screw in the meter face, just below the
“
LOCK
” switch.
S p e c i f i c a t i o n s
Optional Accessories
Optional
Battery 1.5V, size “AA” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AB1
Fuse 0.5 Amp, 0.5 OHM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AF3
Test leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ATL50
Temperature probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ATT28
Alligator clip adapters, insulated (pr) . . . . . . . . . . . . . . . . . . . . .AAC
Plug-in line splitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ASL1
MCP4-MAN
P. 3
Ranges
AC Amps
0 - 6, 15, 60, 150, 300A
AC Volts
0 - 150, 300, 750V
DC Volts
0 - 75V
OHMS
X1, X100 (30
Ω
center scale)
Temperature
-50˚ to 400˚F
Accuracy
AC Amps
±3% of full scale
AC Volts
±3% of full scale
DC Volts
±3% of full scale
OHMS
±3% of scale length
Jaw opening
1 - 1/4”
Battery
One 1.5 V, size “AA” (NEDA #15D) battery supplied
Fuse
0.5 Amp 0.5 OHM (size 5 x 20 mm)
Size
7.75” x 3” x 1.4” (199 mm x 76 mm x 36 mm)
Weight
12 onces
