WACO DCM-30 User manual

Waco
E et. TAL
CEAM METEER
|0.00-
Box Contents:
MAX DATA HOLD
MAX DATA FIOLD
Digital Clampmeter
Test Lead Set
DCM-30
raco CLAMP METER
DCM 30
CLAMP MEER
DCV
(Waco
ACA ACV
DCV Q
|(ACAACV
Battery
Instruction Manual
600V Hz600V
200V T 200
60OV 600V
// 200K
600A
200K
600A
200A
2K-
200A
,2K
20A
20A
OFF
FOFF
OFF-
-OFF
COM-A V
O 60VAG
COM-A-V2
AY
G00VAC
bUOvDC
MAX
DCM-30

OPERATOR'S MANUAL
WBc DCM-30
Open circuit volts: 3,0Vdc typical
Audible indication: 30mV
Overload protection: 500V C or AC rms
indicated
in
the
display
is
the
measured
value
of
resis-
tance.
In
continuity
test,
the
beeper
sounds continuously,
if the
resistance
is
less
than
302.
WARNING
SPECIFICATIONS
with
Display:
3%
digit liquid erystal display (LCD
maximum reading of 1999.
olariy
Automatie,
positive
implicd,
ncgative
pomy
The
accuracy
of the
functions
might
be
slightly affected,
when
exposed
to
a
radiated
electromagnetic
field
envi-
ronment,
eg,
radio,
telephone
or
similar
AC CURRENT
DIGITAL Clamp-On METER
indicatio.
Range
Accuracy
Overlaod
Overrange:
(OL)
or
(-OL) is displayed.
Zcro: Autonmatic.
Low
battery
indication:
The
is
displaycd
when
nc
battery voltage drops
bclow
the
opcrating
levc.
IeAsurcment
rate:
2.5
times
per
second,
nominal.
Opcrating
Environment:
0°C
to
40°C
at
< 70%
R.H.
Storage
Temperature:
-20°C
to
60°C,
0
to
80%
R.H.
with
battery
removed
from
meter.
Protection
50/6011z (1.5% rdg +4dgts)
40-50011z (3.5% rdg 5dgts)
1090Aac max
200A
Frequency Measurements
1. Sea the Function/Range switch to the "HZ position.
2.
Connect the
red
test
lead
to the
"VN"
jack
and
the
black
test lead to the "COM jack.
3. Connect the test leads to the point of measurement and
read the frequency from the display.
20A/600 A 50/60Hz (3.5%o rdg + 4dgts)
140-500Iz (5.5% rdg * 5dgts)
for I minute
OPERATION
ACCuracy:
Stated
accuracy
at
23°C
:
5°C,
<75%
R.H.
Power:
Single
standard
9-volt
battery.
NEDA
I
604,
JIS
006P. IEC 6F22.
Bclore
taking
any
measurcments,
read
the
Safety
In-
ormation Section. Always examine the instrument for
damage, contamination (excessive dirt, grease, etc.) and
delects. Examine the test leads for cracked or frayed insu-
lation. If any abnormal conditions exist do not attempt to
make any measurements.
Diode Tests
1. Connect the red test lead to the "VN" jack and the black
test lead
to the
"COM
jack.
2. Set the Function/Rangeswitch to the position.
3. Turn off power to the circuit under test.
4. Touch probes to the diode. A forward-voltage drop is
about 0.6V (typical for a silicon diode).
5.
Reverse
probes.
If the
diode
is
good,
"OL"
is
displayed.
If
the
diode
is
shorted, *.000"
or another
number is dis-
played.
6. If the diode is open. "OL" is displayed in both direc-
Battery
life:
200
hours
typical
with
carbon-zinc.
Dimensions:
192mm
(H) x
82mm
(W)x
33mm (D).
Weight: Approx. 9.4 oz. (270g) includingbattery.
Accessories: One
pair
test
leads,
9V
battery
(installed)
METER
MAX DATA HOLD Button:
DC VOLTS
Ranges: 200V, 600V
Resolution: 100mV
Press (MAX DATA) button to toggle in and out of
MAX DATA Hold mode, In the MAX DATA Hold mode
the "MAX annunciator is displayed.
The
MAX hold function
is
disable in the
frequency
count
mode,
but
the MAX
annunciator
is still
displayed.
Accuracy: +(2.5% rdg + 1dgt) on 200V range
+(4.0% rdg + 1dgt) on 600V range
tions.
Input impedance: 10MS2
Overload protection: 600V DC or AC rms
7. If the junction is measured in a circuit and a low reading
is obtained with both lead connections, the junction may
be shunted
by
a
resistance
of
iess than 1k
In
this
case
Voltage Measurements
1. Connect the red test lead to the "VQ" jack and the black
test lead to the "COM" jack.
2. Set the Function/Range switch to the desired Voltage
type
(AC
or
DC)
and
range. If magnitude
of
voltage
is
not known, set switch to the highest range and reduce
until a satisfactory reading is obtained.
3. Connect the test leads to the device or circuit being
AC VOLTS (50Hz-500Hz)
Ranges: 200V, 600v
Resolution: 100mV
the diode must be disconnected from the circuit for ac-
SAFETY INFORMATION
curate testing.
The following safety information must be observed to
insure maximum personal safety during the operation at
this meter
Accuracy: (1.5% rdg + 4dgts) on 200V range
+(3.0% rdg+ 4dgts) on 600V range
MAINTENANCE
Input impedance: 10MO
Overload protection: 600V DC or AC rms
WARNING
measured.
1. Do not use the meter if the meter or test leads look
4. For dc, a (-) sign is displayed for negative polarity.
positive polarity is implied.
Remove test leads before changing battery
or perfoming any servicing
damaged, or if you suspect that the meter is not operat-
ing properly.
2. This meter is not recommended for high voltage indus-
trial use, for example not for measurements of 440VAC
or 600VAC industrial power mains. The unit is intended
for use with low energy circuits to 600VDC or 600VAC
or high energy circuit to 250V AC or DC. Accidental
misuse by connection across a high voltage, high energy
power source when the meter is set up 1or mA meas-
urement may be very hazardous.
3. Turm
off
power
to
the circuit
under
test before
cutting,
unsoldering,
or
breaking
the circuit. Small
amounts of
current
can be dangerous.
4. Use caution when working above 60V dc or 3OV ac rms.
Such voltages pose a shock hazard.
S. When using the probes, keep your fingers bchind the
finger guards on the probes.
Measuring
voltage
which
exceeds
the limits
of
the
mul-
timeter may damage the meter and expose the operator
to a shock hazard. Always recognize the meter voltage
limits
as
stated
on
the
front
of the
meter.
RESISTANCE
Battery Replacement
Poweris
supplied
by
a 9
volt
"transistor battery.
(NEDA
1
604,
IEC
6F22).
The
"
appears
on
the LCD
display when replacement is needed. To replace the battery.
remove the one screw from the back of the meter and ift
off the battery case. Remove the battery from battery con
Ranges: 2KQ, 200KS2
Resolution: 12
Current Measurements
I. Set the Function/Range switch to the highest 600A ac
Accuracy: +(1.5% rdg + 1 dgt)
Open
circuit
volts: 0.3Vdc
Overload protection: S00V DC or AC rms
range.
2.
Press
the
trigger
to
open transfomer
jaws
and clamp
onto one conductor only. Read the current directly on
the display. It is recommended that the conductor be
placed
at the
center
of the
closed
jaws
for maximum
tacts.
CONTINUITY
Audible
indication: less
than
3002
on
2KS2 range
for
accuracy.
3. When the reading is lower than 200 counts, set the range
switch to the next lower range position. For maximum
actual values
Overload protection: 500V DC or AC rms
accuracy, sclect the lower range posSible without over
ranging the meter.
FREQUENCY (Autoranging)
Ranges: 2KHz, 20KHz
Accuracy: +(0.5% rdg + 3dgts)
Sensitivity: 80Vrms min
Resistance
and
Continuity
Measurements
I.
Set
the
Function/Range
sWitch
to
the desired
resistance
Overload
protection:
500V
DC or AC
rms
(5OHz-500Hz)
range
or
continuity
position.
2.
Remove
power
Irom
the
cquipment
under test.
3.
Connect
the
red
test
lead
to
the
*V2°
jack
and
the black
test lead to the "COM" jack.
4.
Touch
the
probes
to
the
test
pounts.
In
ohms,
the
value
DIODE TEST
Test current: 1,0mA + 0.6mA
Accuracy: (5.0% rdg + 3dgts)