PDi CA-400D User manual

PDI CA-400D
AC/DC CURRENT CLAMP
OPERATOR’S MANUAL
International Safety Symbols
This symbol, adjacent to another symbol or
terminal, indicates the user must refer to the
manual for further information.
SAFETY NOTES
：
•Do not exceed the maximum allowable input
range of any function.
•Set the function switch OFF when the meter is not
in use.
INTRODUCTION
The AC/DC Current Clamp is a transducer which will
allow your multimeter to measure electrical and/or
electronic current up to 400 amperes AC/DC, with a
frequency response to 50/60Hz. There is no need to
break a circuit or to remove the insulation when
measuring current with this clamp.
When measuring DC current, the CA-400D offers the
user “zero” adjustment by turning the DC ZERO
knob on the clamp probe.
NOTE: Keep the clamp jaw closed around wire/cable,
to ensure the accurate readings during current test.
MEASURING CURRENT
1. Insert the black banana plug into the COM jack
and the red banana plug into the V jack of any
multimeter with a minimum input impedance of
10k ohms.(OUTPUT and V jack link)
2. Set the power switch from “OFF” to the desired
range, 40A (output: 10mV/A) or 400A (1mV/A)
position. The green LED will light to indicate
that the clamp is switched on.
3. For current measurement below 40A, set the unit
to 40A range and set the multimeter to 400mV or
600mV AC range for AC current measurements,
or 400mV or 600mV DC range for DC current
measurements. If the measured current exceeds
40A, set the unit to 400A range.
4. When measuring DC current, always turn the
zero adjustment knob on the clamp until the
multimeter reads zero, before taking your
measurement.
5. Clamp the jaws around the current-carrying
conductor and interpret the reading according to
Step 3 above. For more detail, refer to section
below.
HOW TO INTERPRET READINGS
When 40A range is selected, the measured current
value in Amps if the multimeter reads 100mV, is
100mV/(10mV/A)=10A. To simplify that, move the
decimal point one position to the left.
When 400A range is selected, the measured current
value in Amps if the multimeter reads 100mV, is
100mV/(1mV/A)=100A. To simplify that, the mV
reading is equal to the Amp reading.
APPLICATION NOTES
1. In the case of DC current, the output is positive
when the current flows from the upside to the
underside of the clamp. The red banana plug is
positive (OUTPUT aperture).
2. In the case of DC current measurement, a
hysteresis effect can occur making it impossible
to zero the clamp properly. To eliminate this
effect, open and close the jaws several times then
turn zero adjustment knob.
Non-Contact AC Voltage Measurements
WARNING: Risk of Electrocution. Before use,
always test the Voltage Detector on a known live
circuit to verify proper operation

1. Touch the probe tip to the hot conductor or insert into
the hot side of the electrical outlet.
2. If AC voltage is present, a red detector LED will
illuminate.
NOTE: The conductors in electrical cord sets are often
twisted. For best results, drag the probe tip along
a length of the cord to assure placing the tip in
close proximity to the live conductor.
NOTE: The detector is designed with high sensitivity.
Static electricity or other sources of energy may
randomly trip the sensor. This is normal operation
OPERATOR SAFETY
1. Do not clamp around conductors with voltages
equal to or exceeding 600V DC or 600V rms AC.
2. To avoid physical injury, measurements on bare
conductors or conductors with cracked or frayed
insulator are forbidden.
SPECIFICATIONS
GENERAL
Captured Conductor Size: 1 ¼ inch
Low Battery Indictor: Red LED light
Operating Temperature: 32°F to 122°F, 70% R.H.
Storage Temperature: -4°F to 158°F, 80% R.H.
Battery Type: Two “AAA” 1.5V Battery
ELECTRICAL (73°±5°F, 70% R.H. maximum)
Effective Measurement Range
40A (output: 10mV/A): DC or rms AC for 400mV or
600mV range of the multimeter.
400A (output: 1mV/A): DC or rms AC for 400mV or
600mV range of the multimeter.
Accuracy
Current Clamp Accuracy:
DCA range: 40A
0~40.0ADC: ± (2.5% +0.1A)
DC range :400A
0~400ADC: ± (2.8% +0.5A)
ACA range: 40A(50/60Hz)
0~40.0AAC: ± (2.5% +0.1A)
ACA range: 400A(50/60Hz)
0~400AAC: ± (2.8% +0.5A)
WARRANTY
This PDI product is warrantied to be free from defects
in materials and workmanship for a period of two (2)
years from the verified date of purchase. During the
two year warranty period, PDI will either repair or
replace the defective unit, at PDI’s discretion. A
purchase receipt or other acceptable form of proof of
original purchase date will be required before any
warranty processes begin. PDI warrants all authorized
repairs with a six (6) month limited warranty. View
full warranty details and register your PDI product at
www.PDImeters.com
NOTE: Online product registration is required for
all warranty claims.
SAFETY INFORMATION
The instrument complies with class II, overvoltage
CAT III - 600V of the EN 61010-1, and EN
61010-2-032 standards. Pollution degree 2 in
accordance with IEC 664 indoor use. If the equipment
is used in a manner not specified, the protection
provided by the equipment may be impaired.
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