Megger DLRO10X Digital Low Resistance Ohmmeter

DescriptionMegger DLRO10X Digital Low Resistance OhmmeterProduct Details:The upgraded version of Megger’s DLRO10, this tester is capable of everything the other tester could do and also includes a number of unique new features.Easily the most useful upgrade is the addition of built-in memory to the tester. This enables users to automatically store test readings and recall them at a later date either on the tester or on a PC, ensuring that extensive analysis can be carried out on one testing point over time or comparisons can be made between different conductor measurements. The DLRO10X also includes an alpha-numeric keypad to allow the user to manually adjust records and the memory of the tester can be sent to a printer to print out testing records.When testing, the DLRO10 uses a four terminal resistance method to negate the resistance of test leads, thus ensuring measurement accuracy. Multiple test modes are available on the device, including normal testing, auto testing (which applied forward and reverse current), continuous testing for repeated measurements and a special inductive mode for use on inductive devices such as motors etc. The DLRO10X also comes with a unique unidirectional mode which applies current in a single direction (this is designed to speed up the overall measurement process).The Megger DLRO10 can use multiple ranges when testing. The following table outlines the specific testing procedures possible and relevant data when testing with this low resistance ohmmeter:Resistance RangesFull Scale VoltsTest Current Full Scale  Resolution  Accuracy*  Resistive  Inductive  Resistive  Inductive1.9999 mΩ0.1 μΩ±0.2% ±0.2μΩ20 mVn/a10 An/a19.999 mΩ1 μΩ±0.2% ±2 μΩ20 mV20 mV1A1A199.99 mΩ10 μΩ±0.2% ±20 μΩ20 mV200 mV100mA1A1.9999 Ω100μΩ±0.2% ±0.2 mΩ20 mV200 mV10mA100mA19.999 Ω1 mΩ±0.2% ±2 mΩ20 mV200 mV1mA10mA199.99 Ω10 mΩ±0.2% ±20 mΩ20 mV200 mV100 μA1mA1999.9 Ω100 mΩ±0.2% ±0.2 Ω200 mV200 mV100 μA100 μA This tester also comes with a few additional features including a full LCD display of test results, automatic test procedures to make life easier and the ability to check for noise on circuits and limit testing if excessive noise is detected.Megger DLRO10X Digital Low Resistance Ohmmeter Key Features:Powerful instrument ideal for any low resistance measurement application with range from 0.1μΩ to 2000Ω (7 ranges)Manual and automatic modes – automatically choose a test current of up to 10A DC or you can manually set the test current yourselfVariety of different measurement modes:Normal Mode – initiates a test by pressing the Test button on the instrument front panel after connecting the test leads. Continuity on all four connections is checked, forward and reverse currents are appliedAuto Mode – allows forward and reverse current measurements to be made and the average displayed simply by making contact with all four probesContinuous Mode – allows repeated measurements to be made on the same sampleInductive Mode – intended for use when measuring inductive loadsUnidirectional Mode – exclusive to the DLRO10X – applies a current in one direction onlySmall, lightweight and portable design – ideal for use in tight places, reducing the need for extra long leads and two person operationFour terminal resistance method – shows the true resistance of the item under testBright LCD display which is clearly visible under all lighting conditionsAutomatically applies forward/reverse currents which cancel out any standing voltages on sample under testChecks for excessive noise during measurements to ensure accurate resultsAutomatically detects continuity in P and C circuits, preventing erroneously high readings taking due to high resistance contactPowered by a NiMH rechargeable battery pack (interchangeable). Optional mains/line power supply availableInternal memory storage with download to PC via RS232 connectionPrinter output (printer sold separately)Alphanumerical keypad for entering test notesUser-selectable high and low limits for simple go-no-go testingInterchangeable, modular test leads with simple push and twist connection. Compatible with a wide range of optional probes and accessories (see below for more information) Comparison of Digital Low Resistance OhmmetersFeatureMegger DLRO10Megger DLRO10XChauvin Arnoux CA6240Megger DLRO10HDMegger DLRO10HDXChauvin Arnoux CA6255Resistance Range0.1 µΩ to 2,000 Ω0.1 µΩ to 2,000 Ω5 µΩ to 400 Ω0.1 µΩ to 2,000 Ω0.1 µΩ to 2,000 Ω1 µΩ to 2,500 ΩTest CurrentUp to 10 AUp to 10 AUp to 10 AUp to 10 AUp to 10 AUp to 10 A (3 ranges)Test ModesManual, Auto, Continuous, InductiveManual, Auto, Continuous, Inductive, UnidirectionalManual, AutomaticManual, Auto, Continuous, InductiveManual, Auto, Continuous, InductiveInductive, Non-Inductive, Non-Inductive w/ auto triggerMeasurement ControlFully AutomaticFully Automatic / ManualManual, AutomaticFully AutomaticFully AutomaticManual, AutomaticMeasurement Speed<3s for forward and reverse current, average display<3s for forward and reverse current, average displayN/A<3s for forward and reverse current, average display<3s for forward and reverse current, average display<3s for forward and reverse current, average displayTest MethodSingle-cycle, reversing DC ratiometric measurementSingle-cycle, reversing DC ratiometric measurementN/ASingle-cycle, reversing DC ratiometric measurementSingle-cycle, reversing DC ratiometric measurementN/ATest Current Accuracy±10%±10%±10%±10%±10%±10%Test Current Stability<10 ppm per second<10 ppm per second<10 ppm per second<10 ppm per second<10 ppm per second<10 ppm per secondLead ResistanceMax. 100 mΩ for 10 A operationMax. 100 mΩ for 10 A operationN/AMax. 100 mΩ for 10 A operationMax. 100 mΩ for 10 A operationN/AVoltmeter Input Impedance>200 kΩ>200 kΩ>200 kΩ>200 kΩ>200 kΩ>200 kΩNoise Rejection<1% ±20 digits additional error with 100 mV 50/60 Hz<1% ±20 digits additional error with 100 mV 50/60 Hz<1% ±20 digits additional error with 100 mV 50/60 Hz<1% ±20 digits additional error with 100 mV 50/60 Hz<1% ±20 digits additional error with 100 mV 50/60 Hz<1% ±20 digits additional error with 100 mV 50/60 HzData TransferNoneReal-Time or from storage via RS232NoneNoneReal-Time or from storage via RS232NoneData StorageNone700 tests100 measurements200 test records200 test records1,500 measurementsMemo FieldNoneUp to 200 characters per test via integral keypadNoneNoneNoneNoneBattery Type7Ah NiMH rechargeable7Ah NiMH rechargeableNiMH rechargeable battery6V 7Ah sealed lead-acid6V 7Ah sealed lead-acidNiMH rechargeable batteryBattery Life1000 x 10 A tests1000 x 10 A testsNot specified>1000 Auto (3 sec) tests>1000 Auto (3 sec) testsNot specifiedBattery Charge Time2.5 hours to 90%, 4 hours full charge2.5 hours to 90%, 4 hours full chargeApprox. 6 hours8 hours8 hours2.5 hours to 90%, 4 hours full chargeOperating Temperature 5°C to 45°C (Full Accuracy) 5°C to 45°C (Full Accuracy)Not specified-10°C to 50°C-10°C to 50°C 5°C to 45°C (Full Accuracy)Storage Temperature-30°C to 70°C-30°C to 70°C-30°C to 70°C-25°C to 60°C-25°C to 60°C-30°C to 70°CTemperature Coefficient<0.01% per °C from 5°C to 40°C<0.01% per °C from 5°C to 40°CN/A<0.01% per °C from 5°C to 40°C<0.01% per °C from 5°C to 40°C<0.01% per °C from 5°C to 40°CMaximum Altitude2,000m (6562 ft)2,000m (6562 ft)N/A2,000m (6562 ft)2,000m (6562 ft)2,000m (6562 ft)Safety RatingCAT III 600 V (with DH6 leads)CAT III 600 V (with DH6 leads)CAT III 50 VIn accordance with IEC61010-1, CATIII 300V (w/ cover)In accordance with IEC61010-1, CATIII 300V (w/ cover)CAT III 50 VEMC RatingIP65 (case closed), IP54 (battery operation)IP65 (case closed), IP54 (battery operation)IP53IP65 (case closed), IP54 (battery operation)IP65 (case closed), IP54 (battery operation)IP53Dimensions (mm)220 x 100 x 237220 x 100 x 237273 x 247 x 280315 x 285 x 181315 x 285 x 181270 x 250 x 180Weight (kg)2.62.656.76.74What’s Included?Megger DLRO10X Low Resistance Ohmmeter7Ah NiMH Battery ModuleBattery ChargerCigar Lighter AdapterUser GuideWarranty Card**Available with or without DH4-C Duplex Handspikes – selectable above**The Megger DLRO10X Micro-Ohmmeter can be supplied without test leads or with two Megger 1.2m DH4 Duplex handspikes with indicator lights (6111-503). The Megger DH4 1.2m Duplex Handspike Set is a useful testing kit for the Megger DLRO series of micro ohmmeters. It features two test leads with handspikes with connected test lead that terminate in twin C hooks. One of the leads has an indicator light that warns of hazardous voltage, indicates continuity, and signals completion of a test.