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Megger DLRO10X Digital Low Resistance Ohmmeter (No Test Leads)

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Please note that this version of the Megger DLRO10X does not ship as standard with the leadset required for measurements. If you require the lead set, you can buy part number 1006-600 instead which includes this.

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 Ranges Full Scale Volts Test Current
 Full Scale   Resolution   Accuracy*   Resistive   Inductive   Resistive   Inductive
1.9999 mΩ 0.1 μΩ ±0.2% ±0.2μΩ 20 mV n/a 10 A n/a
19.999 mΩ 1 μΩ ±0.2% ±2 μΩ 20 mV 20 mV 1A 1A
199.99 mΩ 10 μΩ ±0.2% ±20 μΩ 20 mV 200 mV 100mA 1A
1.9999 Ω 100μΩ ±0.2% ±0.2 mΩ 20 mV 200 mV 10mA 100mA
19.999 Ω 1 mΩ ±0.2% ±2 mΩ 20 mV 200 mV 1mA 10mA
199.99 Ω 10 mΩ ±0.2% ±20 mΩ 20 mV 200 mV 100 μA 1mA
1999.9 Ω 100 mΩ ±0.2% ±0.2 Ω 200 mV 200 mV 100 μA 100 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 yourself
  • Variety 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 applied
  • Auto Mode - allows forward and reverse current measurements to be made and the average displayed simply by making contact with all four probes
  • Continuous Mode - allows repeated measurements to be made on the same sample
  • Inductive Mode - intended for use when measuring inductive loads
  • Unidirectional Mode - exclusive to the DLRO10X - applies a current in one direction only
  • Small, lightweight and portable design - ideal for use in tight places, reducing the need for extra long leads and two person operation
  • Four terminal resistance method - shows the true resistance of the item under test
  • Bright LCD display which is clearly visible under all lighting conditions
  • Automatically applies forward/reverse currents which cancel out any standing voltages on sample under test
  • Checks for excessive noise during measurements to ensure accurate results
  • Automatically detects continuity in P and C circuits, preventing erroneously high readings taking due to high resistance contact
  • Powered by a NiMH rechargeable battery pack (interchangeable). Optional mains/line power supply available
  • Internal memory storage with download to PC via RS232 connection
  • Printer output (printer sold separately)
  • Alpha-numerical keypad for entering test notes
  • User-selectable high and low limits for simple go-no-go testing
  • Interchangeable, modular test leads with simple push and twist connection. Compatible with a wide range of optional probes and accessories (see below for more information)

What's Included?

  • Megger DLRO10X Low Resistance Ohmmeter
  • 7Ah NiMH Battery Module
  • Battery Charger
  • Cigar Lighter Adapter
  • User Guide
  • Warranty Card

Optional Accessories

  • 18313: Carrying Bag for Cables
  • 249000: Calibration Shunt, 10Ω, 1mA
  • 249001: Calibration Shunt, 1Ω, 10mA
  • 249002: Calibration Shunt, 100mΩ, current rating 1A
  • 249003: Calibration Shunt, 10mΩ, current rating 10A
  • CERT-NIST: Calibration Certificate for Shunts
  • DLRO10LPU-EU: Mains Power Attachment with Schuko Plug
  • DLRO10LPU-UK: Mains Power Attachment with UK Plug
  • DLRO10LPU-US: Mains Power Attachment with US Plug
  • 25940-021: Needle Point Replacement Tips for DH4, DH5 and DH6 Handspikes
  • 25940-014: Serrated End Replacement Tips for DH4, DH5 and DH6 Handspikes

Test leads (please download the datasheet below for much more information on optional test leads):

  • 1006-456: TL1.5-CL Connect Test Leads with Indicator Lights (1.5m)
  • 1006-458: TL3-CL Connect Test Leads with Indicator Lights (3m)
  • 1006-459: TL6-CL Connect Test Leads with Indicator Lights (6m)
  • 1006-452: TL1.5-C Connect Test Leads no Lights (1.5m)
  • 1006-454: TL3-C Connect Test Leads with no Lights (3m)
  • 1006-455: TL6-C Connect Test Leads with no Lights (6m)
  • 1006-460: EL6-C Extension Lead (6m)
  • 1006-450: DP1-C Duplex Connect Handspike Probe
  • 1006-449: DTP1-C Duplex Connect Twist Probe
  • 1006-448: CP1-C Concentric Duplex Connect Probe
  • 1006-447: Heavy Duty Kelvin Clip
  • 1006-451: Large Touchproof Insulated Clip with Adjustable Jaw Opening
  • 1006-444: DH4-C Complete Lead Set with 2 x Duplex Probes, 1.5m Connect Lead and 1.5m Connect Lead with Indicator Lights
  • 1006-462: KC1-Tl3-C Kelvin Clip 3m Lead Set with 2 x Kelvin Clips, 3m Connect Lead and 3m Connect Lead with Indicator Lights
  • 1006-461: KL2-C Insulated Kelvin Clip Set with 2 x Insulated Kelvin Clips, 3m Connect Lead and 3m Connect Lead with Indicator Lights
Accessories related to this product:
  1. Megger KC2-C Large Touchproof Insulated Clip for Duplex Leads
    £134.40 £112.00
  2. Megger 6111-517 DH5 2.5m Duplex Handspikes
    £336.00 £280.00
  3. Megger 1001-249 KC30 Kelvin Lead Kit
    £1,056.00 £880.00
  4. Megger TL6-CL Duplex Connect Test Lead with Indicator Light (6m)
    £117.60 £98.00
  5. Megger KC1-C Heavy Duty Kelvin Clip for Megger Duplex Test Leads
    £70.80 £59.00
  6. Megger 6111-518 2x 1.2m 600V DH6 Duplex Handspikes - Top
    £396.00 £330.00
  7. Megger 1006-457 TL1.5-CL-C 1.5m Lead with Cover & Indicator Light
    £134.40 £112.00
  8. Megger DH4-CHDC Complete Duplex Lead Set for DLRO10HD with 300V CAT III Terminal Cover
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  9. Megger TL3-CL Kelvin Clip Lead Set for DLRO Series (3m, with Lights)
    £102.00 £85.00
  10. megger replacement tip for dh456 handspikes serrated end
    £60.00 £50.00
  11. Megger 6280-333 DLRO Battery Charger
    £97.20 £81.00
  12. Megger 1006-446 DH6-C Connect Duplex Handspike & Lead Set
    £480.00 £400.00
  13. Megger KL2-C Complete Duplex Lead Set
    £300.00 £250.00
  14. Megger TL1.5-CL Duplex Lead - 1.5m with Indicator Light (No Terminations)
    £84.00 £70.00
  15. Megger 1004-183 12V DC Car Battery Charger
    £18.90 £15.75
  16. Megger 1008-024 Sprung Probe Contact for DLRO10
    £34.80 £29.00
  17. Megger 1001-248 KC60 Wind Turbine Lightening Protection Lead Set - Front
    £999.00 £832.50
  18. Megger CP1-C Concentric Probe for Megger Connect Test Leads
    £115.20 £96.00
  19. Megger Serial PC Download Lead
    £8.10 £6.75
  20. Megger 6111-503 2x DH4 1.2m Duplex Handspikes
    £246.00 £205.00
  21. Megger DP1-C Duplex Probe-Connect Probe
    £96.00 £80.00
  22. Megger DH4-C Two Wire, Four Terminal Complete Duplex Probe Lead Set for DLRO10 Series
    £324.00 £270.00
  23. Megger DPT1-C Duplex Twist Probe
    £90.00 £75.00
  24. Megger 6380-138 Carry Case for the DLRO10/10X
    £86.40 £72.00
  25. Megger 1008-025 Carry Strap
    £14.40 £12.00
  26. Megger 1000-809 KC100 Kelvin Lead Kit for DLRO
    £1,200.00 £1,000.00
  27. Megger EL6-C Connect Extension Lead - 6m
    Megger EL6-C Connect Extension Lead - 6m
    SKU1006-460
    Lead Time: 1-2 Weeks
    £148.80 £124.00
  28. Megger TL1.5-C DLRO Series Connect Test Lead (No Terminations) - 1.5m
    £58.80 £49.00
  29. Megger 1006-445 2x 3m DH5-C Connect Duplex Handspikes
    £336.00 £280.00
  30. Megger 1006-453 TL1.5-C-C 1.5m Lead
    £111.60 £93.00
  31. Megger KC2-TL3-C Complete Lead Set for DLRO10 Series with 2 x Insulated Kelvin Clips
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Part Code1006-659

Megger DLRO10 Technical Specifications/Comparison Chart

The following table outlines the functionality of the Megger DLRO10 as well as the differences between the DLRO10 and the DLRO10X.

  DLRO 10 DLRO 10X
Measurement
Mode  Manual, Auto, Continuous, Inductive  Manual, Auto, Continuous, Inductive, Undirectional
Control Fully Automatic
Fully Automatic/Manual
Speed
 <3s for forward & reverse current and to display average 
 Display  
 Measurement  4 1/2 digit seven segment LED  
 Range and Safety
 LED indication Large backlit LCD
 Test Method
Single cycle reversing d.c. ratiometric measurement -average result display
 Test Current
 Accuracy  ±10% 
 Stability  <10 ppm per second 
 Maximum Lead Resistance
 100 mΩ total for 10 A operation irrespective of battery
condition. 
 Voltmeter Input Impedance
 > 200 kΩ
Hum Rejection
Less than 1% ±20 digits additional error with 100 mV peak 50/60 Hz. on the potential leads. Warning will show if hum or noise exceeds this level. 
 Data Transfer
 - Real Time or from storage via RS232
 Storage  - 700 tests
 Memo Field
 - Up to 200 characters per test via integral alphanumeric keypad
 Battery Capacity
7 Ah NiMH rechargeable 
 Battery Life
 Typical 1000 x 10A Tests Before Recharge
 Recharge Via external 90 V - 260 V 50/60 Hz charger or from 12 to 15 V dc supply 
 Standard Charging Rate
2.5 hours to 90% capacity, 4 hrs for full charge 
 Temperature  +5 ºC to +45 ºC (41 ºF to 113 ºF) at full specification
-10 ºC to +50 ºC (14 ºF to 122 ºF) at reduced accuracy 
Storage Co-Efficient
 -30 ºC to +70 ºC (-22 ºF to 158 ºF) 
 Slow Charging
<0.01% per ºC over range 5 ºC to 40 ºC (<0.006% per ºF from 4 1ºF to 104 ºF) 
 Humidity (MAX)
 +10 ºC to +45 ºC (50 ºF to 113 ºF) 
 Altitude (MAX)
 90% RH @ 40 ºC (104 ºF) non-condensing 
Safety
 2000 m (6562 ft) to full safety specifications 
 EMC  In accordance with IEC61010-1 600 V Category III - only when DH6 leads are used.
In accordance with IEC61326-1 
 Dimensions  220 x 100 x 237 mm (8.6 x 4 x 9.5 in) 
 Weight  2.6 kg (5 3/4 lb.) including battery module 
* The accuracy stated assumes forward and reverse measurements.
Inductive mode or undirectional mode will introduce an undefined error if an external EMF is present.
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