Megger DCM330 Bedienungsanleitung
DCM330
Clampmeter
User Guide
www.megger.com
DCM330
2
Safety Information
1. Safety Information
To ensure safe operation and service of the Meter, follow these instructions.
Failure to observe warnings can result in severe injury or death.
Avoid working alone so assistance can be rendered.
To enhance safety, test leads should be disconnected from instrument when not in use.
Do not use test leads or the Clamp Meter if they look damaged.
Do not use the Meter if the Clamp Meter is not operating properly or if it is wet.
Use the Clamp Meter only as specified in the Instruction card or the protection provided
by the Clamp Meter might be impaired.
Special precautions are necessary when operating in situations where exposed live parts
at dangerous voltages may be encountered. Personal protective equipment (not supplied
with this instrument) should be used.
To avoid false readings that could lead to electric shock and injury, replace the battery as
soon as the low battery indicator ( ) appears.
1.1 Maintenance
Do not attempt to repair this Clamp Meter.
It contains no user-serviceable parts. Repair or serving should only be performed by qualified
personal.
1.2 Cleaning
Periodically wipe the case with a dry cloth and detergent do not use abrasives or solvents.
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Safety Information
1.3 Safety, Hazard and Warning symbols on the instrument
This paragraph details the various safety and hazard icons on the instrument’s outer case.
Icon Description
FWarning: High Voltage, risk of electric shock
GCaution: Refer to user guide.
UK conformity. This equipment complies with current UK legislation
cEU conformity. Equipment complies with current EU directives.
Equipment complies with current ‘C tick’ requirements.
Do not dispose of in the normal waste stream.
tEquipment protected throughout by double insulation.
gReference earth connection. Not a protective earth terminal
Battery
Application around and removal from hazardous live conductors is permitted
CAT IV - Measurement category IV: Equipment connected between the origin of the low-
voltage mains supply and distribution panel.
CAT III -Measurement category III: Equipment connected between the distribution panel and
electrical outlets.
CAT II - Measurement category II: Equipment connected between the electrical outlets and
user’s equipment.
CAT I - Measurement category I: The circuits are not connected to mains.
Measurement equipment may be safely connected to circuits at the marked rating or lower.
The connection rating is that of the lowest rated component in the measurement circuit.
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DCM330
4
Operation
2. Operation
2.1 Power On / Off
2.2 Auto Power Off
The meter will automatically shut itself off
after approximately 10 minutes after power
on.
2.3 AC V / DC V
2.4 Data Hold
2.5 Volt Finder
1. Volt Finder can be activated on any range
including OFF.
2. Test leads are not used for the Volt Finder
function.
3. Press and hold the Volt Finder button.
The display will go black, a tone sounds
and the red LED near the fork jaw
will illuminate briefly to verify that the
instrument is operational. Continue to
hold the Volt Finder button.
4. If a voltage of 50 V to 1000 V (50 to
500 Hz) is detected near the jaw ,a
continuous tone sounds and the red LED
near the jaw illuminates.
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Operation
2.6 Diode / Continuity
2.7 Resistance
2.8 ACA
FCAT.IV.600 V with respect to earth for the
jaw. Tactile Barrier for hand guard.
FDo not hold the meter in front of the
Tactile Barrier.
2.9 Battery Replacement
To avoid false readings that could lead to electric
shock and injury, replace the battery as soon as the
low battery indicator () appears.
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DCM330
6
Specifications
3. Specifications
Specification Detail
1-1 General Specifications
LCD display digits : 3 1/2 digit large scale LCD readout.
Display count : 2000 counts.
Measuring rate : 1.5 times / sec.
Overrange display : “OL” is displayed for “Ω” functions, shows the real
value for “A” and “V” function.
Automatic power off time : Approximately 10 minutes after power on.
Low battery indicator : is displayed. Replace battery immediately
Power requirement : R03 UM4 AAA 1.5 V x 2 batteries
Battery life : ALKALINE 250 hours.
Not suitable for use with rechargeable cells.
1-2 Environmental Conditions
Indoor Use.
Calibration : One year calibration cycle.
Operating temperature : 0 °C ~ 30 °C (±80% RH) 30 °C ~ 40 °C (±75% RH)
40 °C ~ 50 °C (±45% RH)
Storage temperature : -20 to +60 °C, 0 to 80% RH (batteries not fitted).
Dimensions (W x H x D) : 54 mm x 193 mm x 31 mm
Weight : 280 g including battery.
Accessories : Battery (installed), Carrying case and User manual.
Overvoltage category : IEC 61010-1 1000 V CAT.III. 600 V CAT.IV.
Operating altitude : 2000 m (6562 ft)
Conductor Size : 16 mm diameter.
Pollution degree : 2
EMC : EN 61326-1
Shock vibration : Sinusoidal vibration per MIL-T- 28800E
(5 ~ 55 Hz, 3 g maximum).
Drop Protection : 1.2 m drop to hardwood on concrete floor.
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Specifications
1-3 Electrical Specifications
Accuracy is ±(% reading + number of digits) at 23 °C ±5 °C < 80%RH.
Temperature coefficient : Add 0.2 x (Specified accuracy) / °C, < 18 °C, > 28 °C .
DC / AC Volts Range DC Accuracy AC Accuracy
200.0 V ±(1.0% + 2dgt) ±(1.5% + 5dgt)
50 Hz ~ 500 Hz
1000 V
Over voltage protection : DC / AC1000 V
Input Impedance : 2 MΩ // less than 100 pF.
CMRR / NMRR : (Common Mode Rejection Ratio) (Normal Mode
Rejection Ratio)
VAC : CMRR > 60 dB at DC, 50 Hz / 60 Hz
VDC : CMRR > 100 dB at DC, 50 Hz / 60 Hz NMRR > 50 dB
at DC, 50 Hz / 60 Hz
AC Conversion Type : Average sensing rms indication.
AC Current Function Range Accuracy
A~
(50~60 Hz)
0.0 ~ 200.0 A ±(3.0% + 3 dgt)
Overload protection : 400 Arms
AC Conversion Type : Average sensing rms indication.
* Adjacent conductor influence : <0.08 A/A
Resistance Range Accuracy
200.0 Ω ±(1.0% + 5 dgt) *2
2.000 KΩ
±(1.0% + 2 dgt)
20.00 KΩ
200.0 KΩ
2.000 MΩ
20.00 MΩ ±(1.9% + 5 dgt) *1
Overload protection : 600 Vrms
Open circuit Voltage : -1.3 V approx.
* 1 < 100 dgt rolling.
* 2 < 10 dgt rolling.
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DCM330
8
Specifications
Diode Check and Continuity Resolution Accuracy
1 mV ±(1.5%+0.05 V)*
* For 0.4 V ~ 0.8 V
Max.Test Current : 1.5 mA
Max. Open Circuit Voltage : 3 V
Overload Protection : 600 Vrms
Continuity : Internal beeper activates if the resistance of the circuit
under test is less than
50 Ω. It will then turn off if the resistance is increased
beyond 250 Ω. Response time is approximately
0.25~1 sec.
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Limited Warranty
4. Limited Warranty
This Meter is warranted to the original purchaser against defects in material and workmanship
for 1 year from the date of purchase. During this warranty period, manufacturer will, at its
option, replace or repair the defective unit, subject to verification of the defect or malfunction.
This warranty does not cover , disposable batteries, or damage from abuse, neglect, accident,
unauthorized repair, alteration, contamination, or abnormal conditions of operation or
handling.
Any implied warranties arising out of the sale of this product, including but not limited to
implied warranties of merchantability and fitness for a particular purpose, are limited to the
above. The manufacturer shall not be liable for loss of use of the instrument or other incidental
or consequential damages, expenses, or economic loss, or for any claim or claims for such
damage, expense or economic loss. Some states or countries laws vary, so the above limitations
or exclusions may not apply to you.
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DCM330
10
Decommissioning
5. Decommissioning
5.1 WEEE Directive
The crossed out wheeled bin symbol placed on Megger products is a reminder not to dispose of the product
at the end of its life with general waste.
Megger is registered in the UK as a Producer of Electrical and Electronic Equipment. The Registration No is
WEE/ HE0146QT.
For further information about disposal of the product consult your local Megger company or distributor or
visit your local Megger website.
5.2 Battery disposal
The crossed out wheeled bin symbol placed on a battery is a reminder not to dispose of batteries with
general waste when they reach the end of their usable life.
For disposal of batteries in other parts of the EU contact your local Megger branch or distributor.
Megger is registered in the UK as a producer of batteries (registration No.: BPRN00142).
For further information see www.megger.com
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1
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