Atec Megger-DLRO-10-10X - Manual

DLRO 10 and DLRO 10X
Digital Microhmmeter
DESCRIPTION
DLRO 10 and DLRO 10X set the standards for low resistance
measurement. DLRO 10 and DLRO 10X are fully automatic
instruments, selecting the most suitable test current up to 10 A
d.c. to measure resistance from 0.1 µΩ to 2000 Ω, on one of seven
ranges.
For users who desire more control over the measurement process,
DLRO 10X uses a menu system controlled by a two-axis paddle to
allow the user to manually select the maximum test current.
DLRO 10X also adds real time download of results and on board
storage for later download to a PC.
Both instruments are built into a strong, lightweight case that is
equally at home in the field or in the laboratory. Light enough to
be worn around the neck, they are small enough to be taken into
areas that were previously too small to access.
DLRO 10 uses a large, bright 4 1/2 -digit LED display while DLRO
10X has a large, backlit LCD display. Normally, measurements are
made with forward and reverse currents to cancel the effects of
any standing voltages across the test sample.
The average value is then displayed within 3 seconds, to a basic
accuracy of 0.2%. DLRO 10X displays both forward and reverse
measurements as well as the average of the two.
DLRO 10X allows the user to set high and low pass limits, thereby
enabling simple go-no-go testing.
At the end of a test DLRO10X will store the test results, as well as
any notes relevant to the test.
To assist operator safety and ease of use, both instruments are
supplied complete with a pair of duplex handspikes with 1.2 m
(4 ft) leads. One of the probes is fitted with LED’s, which duplicate
indicators on the instrument display indicating that all four contacts
have been made, the presence of a high voltage across the load,
and the presence of current flow while a load is discharging. A full
range of test leads is available with probes, clamps and Kelvin clips.
Nickel Metal Hydride (NiMH) batteries power the instruments.
The battery packs are interchange-able so that an exhausted battery
may be recharged using the external charger supplied while testing
continues using a spare pack. Although full charging will take 4 hours,
a fast charge mode allows the battery to be 90% charged within
2 1/2 hours from a 12 volt battery or from a standard 120/230 V AC
supply via the supplied charger. The battery pack contains its own
battery state indicator, which allows the charge-state to be monitored,
even without being connected to the instrument.
DLRO 10X is fitted with RS232 communications that will allow
results to be downloaded in real time or stored for later retrieval.
Up to 700 sets of results may be stored within DLRO 10X complete
with notes containing up to 200 characters which may be added
using the on board keypad. These results can also be downloaded
to a PC.
MEASUREMENT MODES:
A variety of measurement modes are available. Since the introduction
of V2.0 firmware, Normal, Auto, Continuous and Inductive mode
are available on both the DLRO 10 and the DLRO 10X.
n
Auto current reversal cancels standing
emfs
n
Protected to 600 V
n Automatically detects continuity in
potential and current connections
n Multiple operating modes including fully
automatic
n Alpha-numeric keypad for entering test
notes (DLRO 10X)
n User selectable high and low limits
(DLRO 10X)
n Printer output and memory (DLRO 10X)
DLRO 10 AND DLRO10X
Digital Microhmmeter