DLRO100E DLRO100X And DLRO100H Data Sheet Brochure

User Manual: DLRO100E-DLRO100X-and-DLRO100H-Data-Sheet-Brochure

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DESCRIPTION
A significant addition to the comprehensive range of Megger
Low Resistance Ohmmeters, DLRO100 enables low resistance
measurement, across multiple applications, in areas without
access to mains power. The integral Li-Ion battery supplies a
constant 100 A current for up to 200 Manual/Auto tests to enable
enhanced productivity in remote locations. With a focus on user
safety, advanced design features ensure the safe operation of the
instrument in the most adverse conditions, including a
CAT IV 600 VAC / 500 VDC safety rating in accordance with
IEC61010. The rugged design, intuitive interface and IP54 (lid open)
rating ensure reliability and ease of use in the most arduous of
conditions.
Test Modes
The Manual test mode allows the user to initiate the test procedure
once the probes are in contact with the object under test. Once
the TEST button is depressed the TEST lamp will illuminate and the
instrument will undertake a single test to verify the resistance of the
test object.
In Auto mode the user selects the desired current, connects the
current test leads and as soon as the potential leads are connected
a test will start automatically. To repeat a test, simply break contact
with the potential probes and remake contact.
In Continuous mode the user connects the test leads and presses
the TEST button, initiating the test procedure. The instrument will
continue to test, updating the display after each new test cycle, until
the TEST button is pressed or the test procedure times out.
Test Leads:
Standard test leads, with separate Current & Potential, or Kelvin,
combining both Current & Potential in one clamp, are available as
optional accessories in 5 m, 10 m & 15 m lengths. All test leads are
CAT IV 600 VAC / 500 VDC safety rated.
DLRO100 Series
Megger Digital Low Resistance Ohmmeters
DLRO100 Series
Megger Digital Low Resistance Ohmmeters
CAT IV 600 VAC / 500 VDC for safe operation
Lightweight 100 A battery powered unit for
portability
High noise immunity for stable readings
Smooth DC Output for circuit breaker testing
IP54 for protection against dust and moisture
whilst testing
Save, download and delete results
(100X/H variants)
Remote operation, Bluetooth® & asset/result
tagging (100H variants)
A new tough adjustable clamp has been designed to ensure flexibility in many
applications and provides a good connection with the test piece.
History of ‘Ducter’ testing
For over 100 years the ‘Ducter test’ has been used to describe a
simple test for measuring very low contact resistances and “Ducter”,
which is still used as a trade mark, was the name originally given to
the low resistance ohmmeter manufactured by Megger. The name
Ducter was registered by Megger in June 1908 and ‘Ducter’ has
since become the industry standard.
DLRO100 Series
Megger Digital Low Resistance Ohmmeters
2
APPLICATION
The need for accurate low resistance measurement is well known
and very diverse. Typical applications include:
Utilities & Service Contractors – commissioning new
installations & regular maintenance testing of
Switchgear and circuit breaker contact resistance
Busbar and cable joints
Wire and cable resistance
Lightning conductor bonding
Original Equipment Manufacturer – detecting manufacturing
defects
Production test of circuit breakers – contacts & joints
Production test of high voltage switchgear
Production test of welded joints & connections
Transport – manufacturing & maintenance
Railway rolling stock ground connections & manufactured joints
Railway lines & conductor rails – commissioning & maintenance
Aircraft frame bonds and static control circuits
SPECIFICATIONS
Measurement range 0.1 μΩ - 1.999 Ω
Resolution 0.1 μΩ
Noise rejection Differential 100 mV @ 50-60 Hz
on Test Leads
DC output Smooth DC
IP rating IP54 Lid open / IP65 Lid closed
Operating temperature
range
-20°C up to 50°C
Storage temperature range -30°C up to 70°C
Humidity <85% R.H. non-condensing
Battery life 200 single 100 A tests or up to
2x 10 minutes continuous 100 A
output
Battery type User replaceable Li-ion battery
pack
Battery charge time Full charge in 2.5 Hrs from flat
Maximum output voltage 2 V (battery), 3 V (AC)
EMC IEC61326-1
Safety IEC61010
CAT IV 600 VAC / 500 VDC up to
2000 m
CAT IV 300 V up to 4000 m
Dimensions 400 x 300 x 200 mm
Weight 7.0 kg (AC Only)
7.9 kg (with Battery)
Accuracy
Current setting# Resistance range accuracy
50 - 110 A 0 - 100.00 mΩ Typical ± (0.2% + 0.2 μΩ)
Max. ± (0.2% + 0.8 μΩ)*
11 - 49 A 10 μΩ - 100.00 mΩ Typical ± (0.2% + 0.5 μΩ)
Max. ± (0.2% + 2.0 μΩ)*
10 A 10 μΩ - 1000.0 mΩ Typical ± (0.2% + 1.0 μΩ)
Max. ± (0.2% + 2.5 μΩ)*
# Actual test current may be limited by maximum output voltage
* k = ±4σ
Operational uncertanity, 85% RH, -20°C to +50°C
Current setting# Resistance range +
50 - 110 A 0 - 100.00 mΩ ± (0.0% + 0.0 μΩ)
11 - 49 A 10 μΩ - 100.00 mΩ ± (0.0% + 1.0 μΩ)
10 A 10 Ω - 1000.0 mΩ ± (0.1% + 2.0 μΩ)
The Bluetooth ® word mark and logos are registered trademarks
owned by Bluetooth SIG, Inc and is used under licence.
3
DLRO100 Series
Megger Digital Low Resistance Ohmmeters
FEATURES AND BENIFITS
DLRO100
Features E EB X XB H HB Benefits
CAT IV 600 VAC /
500 VDC
up to 2000 m
CAT IV 300 V
up to 4000 m
On all test terminals for safe operation
Lightweight 100 A
battery powered unit Easily portable – 7.9 Kg (17 lbs) with battery
Mains only Mains only units for manufacturing and production applications where
AC is always available. Weight 7.0 Kg (15.5 lbs)
High noise immunity For stable readings in noisy environments
Smooth DC Output Circuit breaker testing
IP54 Lid open
IP65 Lid closed For protection against ingress during operation (lid open) and storage
(lid closed)
Li-ion battery
Always ready to test with a Li-ion fast charge battery - 2.5 hours
charge time from fully discharged
Works from an AC supply if the battery is fully discharged
Battery capacity - 200 single tests or up to 2x 10 minutes continuous
100 A output for extended use
100A Manual,
Auto and
Continuous test
Quick selection of test modes for different applications with 4 terminal
measurement for flexibility
Custom test Adjustable current 10 - 110 A, ramp rates configurable from 0.5s upto
30s and configurable test duration for flexibility
Range and test mode
rotary switches Quick and easy selection of current ranges and test modes
Ultra tough outer
case construction Designed for use in demanding environments with a flame retardant
UL94 V0 inner case for safety
Dual Ground™ * *** Using the optional DC clamp enables circuit breaker testing with ground
protection in place for safety
Large, clear LCD Ideal for all light conditions, with backlight
Internal memory
storage with USB
download capability
For effective results management, up to 220 time and date
stamped records
Remote Control Control the instrument remotely over USB via a PC or laptop for
added safety
Asset tagging Running a PowerDB app on Windows tablet or smart phone to populate
unique asset IDs for efficient asset management
Bluetooth® For effective wireless communication. For download and asset tagging
* with optional Clamp
All models. Two year warranty - second year conditional on free product registration.
4
DLRO100 Series
Megger Digital Low Resistance Ohmmeters
Display clearly showing
large digits for test
results and visible in all
light conditions
Single button to save test
results and to automatically
save in auto mode
IP54 for protection
against dust and rain
during testing
Clearly visible
C and P LED’s
showing
continuity of
current and
potential
connections
Smooth DC
Output on C1 and
C2 terminals
High noise
immunity on P1
and P2 terminals
CAT IV 600 VAC
/ 500 DV safety
rating on all
terminals
DualGroundTM
capability with
the DC clamp
Quick and easy rotary
switch selection of
10 A, 50 A, 100 A tests
- no configuration
required
User configurable
custom test.
Adjustable :
current ramp
duration of test
output current
Rotary switch
selection of view,
download and
delete test results
Simple navigation
of setup and stored
results
Rotary switch
selection of
test modes
and off
position
USB &
Bluetooth for
communications
Back light -
for low light
conditions
A new terminal adapter has been designed to enable the use of users own test
leads.
A user replaceable high power lightweight Li-ion battery provides, from a single
charge, 200 Manual/Auto 100 A tests or up to two 10 minutes continuous 100 A
tests and takes 2.5 hours to charge when fully discharged.
SALES OFFICE
Megge Limited
Archcliffe Road Dover
CT17 9EN England
T +44 (0) 1304 502101
E UKsales@megger.com
DLRO100_DS_en_V05
www.megger.com
ISO 9001:2008
The word ‘Megger’ is a registered trademark
Model name Language Plug/Mains lead
D L R O 1 0 0 - L G - P
SELECT A MODEL
DLRO100H (mains only)
DLRO100HB (mains and battery)
DLRO100X (mains only)
DLRO100XB (mains and battery)
DLRO100E (mains only)
DLRO100EB (mains and battery)
SELECT A LANGUAGE AND PLUG
Please note only some plug types are available for certain languages - the language you need will determine the mains leads available
LANGUAGE PLUG TYPES AVAILABLE
3 DIGIT
CODE
LANGUAGE
INCLUDED
UK EU US CH AUS IT IN UK + US
LG1 EN, DE, FR, NL P1 P2 - P4 P5 - - -
LG2 EN, ES, PT, IT P1 P2 P3 - - P6 - -
LG3 EN, AR, TR, FR P1 P2 P3 - - - P7 -
LG4 EN, CZ, SK, PL P1 P2 - - - - - -
LG5 EN, CN, JA, KO P1 P2 P3 - - - - P8
LG6 EN, RU, HU, RO - P2 - - - - - -
LG7 EN, NO, SV, FI - P2 - - - - - -
ORDERING INFORMATION
Description Order Code
Included Items
Certificate of Test
Quick Start Guide
Calibration Certificate
CD containing the User Guide
Mains lead
USB Cable (X, H variants only)
Lead set is NOT included with the instrument and must be
ordered as an optional accessory.
Description Order Code
Optional Accessories
DLRO100 CAT IV 600V Lead Set (5m) 1004-448
DLRO100 CAT IV 600V Lead Set (10m) 1004-449
DLRO100 CAT IV 600V Lead Set (15m) 1004-450
DLRO100 Terminal Adaptors (x2) 1005-555
DLRO100 Lead Set Adaptors (10 A Leads) 1008-604
DLRO100 CAT IV 600 V Kelvin Lead Set (5m) 1005-634
DLRO100 CAT IV 600 V Kelvin Lead Set (10m) 1005-635
DLRO100 CAT IV 600 V Kelvin Lead Set (15m) 1005-636
DLRO100 DC Clamp (MCPD 100L) 1005-622
DLRO100 ISO17025 (UKAS) Calibration Certificate 1005-888
DLRO100 Lithium Ion Battery Pack 1005-973
Swiss
SN SEV 1011
UK
BS 1363
UK
BS 1363
Australian/New Zealand
AS/NZS 3112
European
Schuko CEE7/7
US
NEMA WD6 15-5P
US
NEMA WD6 15-5P
Indian/S.African
BS 546

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