DLRO100H, DLRO100HB

DLRO100H, DLRO100HB
DLRO100H, DLRO100HB
Megger Digital Low Resistance Ohmmeters
DLRO100H, DLRO100HB
Megger Digital Low Resistance Ohmmeters
■■ Remote operation, Bluetooth® & asset/result
tagging.
■■ Save, delete & download results.
■■ CATIV 600 VAC / 500 VDC for safe operation.
■■ Lightest 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.
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 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.
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.
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.
APPLICATION
SPECIFICATIONS
The needs for accurate low resistance measurement are well
known and very diverse and applications differ between the
electricity utilities, electrical service contractors, Original Equipment
Manufacturers (OEM) and transport. Typical applications include...
Utilities & Service Contractors – commissioning new
installations & regular maintenance testing of
■■ Switchgear and circuit breaker contact resistance
■■ Busbar and cable joints
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
Smoothed DC
IP rating
IP54 Open / IP65 Closed
Operating temperature
range
-20°C up to 50°C
Storage temperature range -30°C up to 70°C
■■ Wire and cable resistance
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
■■ Production test of high voltage switchgear
Battery charge time
Full charge in 2.5 Hrs from flat
■■ Production test of welded joints & connections
Maximum output voltage
2 V (battery), 3 V (a.c.)
EMC
IEC61326-1
Safety
IEC61010
■■ Lightning conductor bonding
Original Equipment Manufacturer – detecting manufacturing
defects
■■ Production test of circuit breakers – contacts & joints
Transport – manufacturing & maintenance
■■ Railway rolling stock ground connections & manufactured joints
■■ Railway lines & conductor rails – commissioning & maintenance
CAT IV 600 VAC / 500 VDC up to
2000 m
■■ Aircraft frame bonds and static control circuits
CAT IV 300 V up to 4000 m
Dimensions
400 x 300 x 200 mm
Weight
7.0 kg (Mains Only)
7.9 kg (with Battery)
Accuracy
Current setting# Resistance range accurancy
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# 50 - 110 A
11 - 49 A
10 A
2
Resistance range +
0 - 100.00 mΩ
± (0.0% + 0.0 μΩ)
10 μΩ - 100.00 mΩ ± (0.0% + 1.0 μΩ)
10 Ω - 1000.0 mΩ ± (0.1% + 2.0 μΩ)
FEATURES AND BENIFITS
Products
Features
DLRO100H DLRO100HB Benefits
CAT IV 600 VAC / 500 VDC
up to 2000 m
n
n
On all test terminals for safe operation
n
Easily portable – 7.9 Kg (17 lbs) with battery
CAT IV 300 V
up to 4000 m
Lightweight 100 A
battery powered unit
Mains only units for manufacturing and production applications where
AC is always available. Weight 7.0 Kg (15.5 lbs)
Mains only
n
High noise immunity
n
n
Smooth DC Output
n
n
Circuit breaker testing
IP54 Lid open
IP65 Lid closed
n
n
For protection against ingress during operation (lid open) and storage
(lid closed)
For stable readings in noisy environments
Always ready to test with a Li-ion fast charge battery - 2.5 hours charge
time from fully discharged
Li-ion battery
n
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
n
n
Quick selection of test modes for different applications with
4 terminal measurement for flexibility
Custom test
n
n
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
n
n
Quick and easy selection of current ranges and test modes
Ultra tough outer case construction
n
n
Designed for use in demanding environments with a flame retardant
UL94 V0 inner case for safety
Dual Ground™
n*
n*
Large, clear LCD
n
n
Ideal for all light conditions, with backlight
For effective results management, up to 220 time and date
stamped records
Using the optional DC clamp enables circuit breaker testing with
ground protection in place for safety
Internal memory storage with
USB download capability
n
n
Remote Control
n
n
Control the instrument remotely over USB via a PC or laptop for
added safety
Asset tagging
n
n
Running a PowerDB app on Windows tablet or smart phone to
populate unique asset IDs for efficient asset management
Bluetooth®
n
n
For effective wireless communication. For download and asset tagging
* with optional Clamp
All models. Two year warranty - second year conditional on free product registration.
3
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
Back light for low light
conditions
Smooth DC
Output on C1 and
C2 terminals
High noise
immunity on P1
and P2 terminals
USB &
Bluetooth for
communications
CAT IV 600 VAC
/ 500 VDC saftey
rating on all
terminals
Rotary switch
selection of
test modes
and off
position
Simple navigation
of setup and stored
results
Clearly visible
C and P LED’s
showing continuity
of current
and potential
connections
DualGroundTM
capabillity with
the DC clamp
Rotary switch
selection of view,
download and
delete test results
User configurable
custom test.
Adjustable :
■■ current ramp
■■ duration of test
■■ output current
Quick and easy rotary
switch selection of 10
A, 50 A, 100 A tests
- no configuration
required
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.
A new terminal adapter has been designed to enable the use of users own test
leads.
4
Model name
Language
D L R O 1 0 0
-
Plug/Mains lead
L G
-
P
SELECT A MODEL
DLRO100H
(mains only)
DLRO100HB (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
3 DIGIT
CODE
LG1
LG2
LG3
PLUG TYPES AVAILABLE
LANGUAGE
INCLUDED
EN, DE, FR, NL
EN, ES, PT, IT
EN, AR, TR, FR
P1
P1
P1
P2
P2
P2
P3
P3
P4
-
P5
-
P6
-
P7
-
ORDERING INFORMATION
Description
Order Code
Description
Order Code
Included Items
Optional Accessories
Certificate of Test
DLRO100 CAT IV 600V Lead Set (5m)
1004-448
Quick Start Guide
DLRO100 CAT IV 600V Lead Set (10m) 1004-449
Calibration Certificate
DLRO100 CAT IV 600V Lead Set (15m)
1004-450
CD containing the User Guide
DLRO100 Terminal adapters (x2)
1005-555
Mains lead
DLRO100 CAT IV 600 V Kelvin Lead Set (5m) 1005-634
USB Cable (X, H variants only)
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
Lead set is NOT included with the instrument and must be
ordered as an optional accessory.
DLRO100 ISO17025 (UKAS) Calibration Certificate 1005-888
DLRO100 Lithium Ion Battery Pack
SALES OFFICE
Megge Limited
Archcliffe Road Dover
CT17 9EN England
T +44 (0) 1304 502101
E UKsales@megger.com
DLRO100H--DLRO100HB_DS_en_V01
www.megger.com
ISO 9001:2008
The word ‘Megger’ is a registered trademark
1005-973
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