Megger PVK330, DCM340 Specifications

DCM340

Digital clampmeter

DCM340

Digital Clampmeter

n DC and AC current and voltage

n 600 A and 600 V

n Resistance and continuity

1

n 3

⁄2 digit, 4000 count display with backlight

n High resolution digital bargraph

n Peak, min/max and data-hold functions

DESCRIPTION

The DCM340 is a highly versatile instrument and ideal for use
in the installation, maintenance, monitoring or checking of
a.c. or d.c. electrical systems and equipment.

There are four instruments in the DCM series of clamp­meters, including the 400 A a.c. current-only DCM310; the
DCM320 which includes voltage and resistance measure­ment; the DCM330 Fork-Multimeter, which is an open fixed
jaw design; and this, the DCM340. Capable of measuring a.c.
and d.c. current up to 600 A; a.c. and d.c. voltage up to 600
V; resistance up to 400 Ω; and frequency up to 400 Hz, the
DCM340 is the most versatile in the range.

Current measurement combined with the comprehensive
and accurate multimeter functions of the DCM340 eliminate
the need to carry around both a clampmeter and multimeter
– this instrument does it all.

The large clear digits of the numeric display are complemented
by the high-resolution digital bar graph, useful for indicating
trending and fluctuation of measurement. The backlight
assists use in poorly lit areas such as distribution cupboards
and corners of switchrooms; and the data-hold feature ena­bles use on difficult access cables where otherwise the display
may be impossible to see.

Min/Max hold provides the ability to store the maximum
and minimum d.c. or rms values over a period of time. While
storage is taking place, either the present, maximum or mini­mum value can be displayed. Peak hold stores the maximum
and minimum peak value of an a.c. signal at a 10 ms sample
rate. The auto-off feature automatically places the meter in

power-save mode after 30 minutes from power-on, but this
can be disabled if required for min/max measurements.

Using the Relative mode (REL), a stable value can be stored,
the instrument zeroed at that point, and then any variation
from that value is displayed as a direct measurement relative
to it.

The DCM340 is safety rated to IEC 61010-1 Cat III 600 V, and
is drop-tested to 1.2 m onto a hard floor. It is supplied with
test leads and a carry case, and a full 1-year manufacturer’s
warranty.

APPLICATIONS

The DCM340 is designed to be used on electrical systems
and equipment where there is a need to measure current,
volts, resistance and frequency. It is therefore intended for
use while installing, maintaining, fault-finding or monitoring
those systems.

The min/max and peak-hold enable maximum load currents
from equipment to be identified such as start-up currents to
motors and heaters.

With the added benefit of d.c. current measurement, it
can also be used in applications including domestic power
generation from solar panels and wind-turbines; battery
monitoring; automotive uses for charging and load circuits;
electric vehicle servicing such as fork-lift trucks; lift main­tenance; UPS commissioning, servicing and maintenance;
electro-plating plants and welding equipment servicing.

DCM340

Digital Clampmeter

SPECIFICATION

Base specifications only. For detailed specification, refer to User
Guide

All accuracies specified at 23°C ±5° <80%Rh

AC Current

Accuracy Accuracy

Range 50 - 60Hz 61 - 400Hz

0-60.0 A ±1.9% ±7 digits ±2.5% ±7 digits

60.0 - 400.0 A ±1.9% ±5 digits ±2.5% ±5 digits

400 - 600 A ±2.5% ±5 digits ±2.9% ±5 digits

DC Current

Range Accuracy

0 - 60.0A ±1.5% ±10 digits

60.0 - 400.0A ±1.9% ±5 digits

400 - 600 A ±1.9% ±10 digits

Voltage

50 - 500Hz DC
Range Accuracy Accuracy

0 - 400.0 V ±1.0% ±5 digits ±0.7% ±2 digits

400 - 600 V ±1.0% ±5 digits ±0.7% ±2 digits

Input impedance: 1 MΩ // < 100 pF

Resistance and Continuity

Range Accuracy

0 - 400.0 Ω ±1% ±3 digits

Open circuit voltage: 3 V

Continuity Check: beeper sounds @ < 30 Ω

Frequency

Range Resolution Accuracy

20 - 400 Hz 1 Hz ±0.1 % ±2 digtits

Overload protection: 600 V & 600 A rms

AC conversion: Average sensing rms indication calibrated to
the rms value of a sine wave input

Auto power-off: 30 minutes after power-on

LCD

Display: 31⁄2 digit large-scale readout

Count: 4000

Sample Rate: 1.5 per second

Overrange: “OL”

Power Requirement

1 x 9V PP3 MN1604 6LR61 alkaline cell

Battery life: 200 hours (alkaline)

Operating Temperature

0 °C - 30 °C <80% Rh

30 °C - 40 °C <75% Rh

400 °C - 50 °C <45% Rh

Storage Temperature

-20 °C - +60 °C (<81% Rh)

(batteries removed)

Safety

Overvoltage safety category: IEC 61010-1 600V CAT III

Operating Altitude: 2000 m

Drop-protection: 1.2 m onto a hardwood surface

Jaw size/maximum conductor: 35 mm diameter

Calibration period: 12 month recommended

Dimensions 68 mm (W) x 237 mm (H) x 42 mm (D)

Weight 225 g including batteries

Sensitivity: 3 A

Peak Hold: ±3% ±15 digits

Sample time: 10 ms

MIN/MAX Hold: add 15 digits to accuracy for a.c. & d.c. A

Positional error: ±1% of reading

ORDERING INFORMATION

Item (Qty) Order Code

DCM340 Digital clampmeter;
600 A ac & dc; 600 V a.c. & d.c.; 400 Ω; 400Hz

Included accessories

Batteries
Pouch
Test leads

UK

Archcliffe Road Dover
CT17 9EN England
T [phone]
F [phone]
E [e-mail]

UNITED STATES

4271 Bronze Way
Dallas TX 75237-1088 USA
T 800 723 2861 (USA only)
T [phone]
F [phone]

1000-305

OTHER TECHNICAL SALES OFFICES

Valley Forge USA, College Station USA, Sydney
AUSTRALIA, Täby SWEDEN, Ontario CANADA,
Trappes FRANCE, Oberursel GERMANY, Aargau
SWITZERLAND,Dubai UAE, Mumbai INDIA,
Johannesburg SOUTH AFRICA, Chonburi THAILAND,
Malaga SPAIN

Item (Qty) Order Code

User guide

Replacement test leads

Red/black test leads with croc clips 6220-779

Red/black fused test leads (500 mA) with croc clips 6220-789

Registered to ISO 9001:2008 Cert no. Q 09250

Registered to ISO 14001-2004 Cert no. EMS 61597

DCM340_DS_en_V03

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