Megger DLRO10 Series Offers

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.

Features

• Auto current reversal cancels standing emfs
• Protected to 600 V
• Automatically detects continuity in potential and current connections
• Multiple operating modes including fully automatic
• Alpha-numeric keypad for entering test notes (DLRO 10X)
• User selectable high and low limits (DLRO 10X)
• Printer output and memory (DLRO 10X)
• Small, lightweight and portable - can be used in tight places, reduces the need for extra long leads and two person operation.
• Four terminal resistance method shows the true resistance of the item under test.
• Bright LED (DLRO 10) and LCD (DLRO 10X) displays are easily visible under all lighting conditions and reduce human error.
• Automatically applies forward and reverse currents which cancel out any standing voltages across the sample under test.
• Checks for undue noise during measurement, reducing the possibility of recording the incorrect result.
• Automatically detects continuity in P and C circuits, preventing erroneously high reading to be taken due to high resistance contact.
• Battery module has a battery condition indicator allowing the user to check the state of spare batteries without connecting to the instrument.
• RS232 connector on the DLRO 10X allows downloading of results in real time or stored for later retrieval

Applications

The needs for accurate low resistance measurement are well known and very diverse. They range through Goods Receiving inspection of components to ground bonding and welded joints. Typical applications include, but are not limited to, making DC Resistance measurements of:

• Switch and contact breaker resistance
• Busbar and cable joints
• Aircraft frame bonds and static control circuits
• Integrity of welded joints
• Inter-cell connections on battery systems up to 600 V peak
• Quality control of resistive components
• Transformer and motor winding resistance
• Rail and pipe bonds
• Metal alloys, welds and fuse resistance
• Graphite electrodes and other composites
• Wire and cable resistance
• Transmitter aerial and lightning conductor bonding