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Table of Contents
Related Manuals for Megger DLRO10HD
Summary of Contents for Megger DLRO10HD
- Page 1 DLRO10HD and DLRO10HDX 10 A Digital Low Resistance Ohmmeter User Guide...
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Page 3: Table Of Contents
Tests with the DH4-C Duplex Hand-spikes or Individual Leads ................12 Tests Inductive Test ..............................13 Manual Bi-directional Test ..........................14 Automatic Bi-directional Test ..........................15 Automatic Uni-directional Test ........................16 Continuous Test .............................17 Tests with Automatic Save (DLROHD10X) Automatic Bi-directional Test ..........................18 Automatic Uni-directional Test ........................19 Continuous Test ............................20 www.megger.com DLRO10HD and DLRO10HDX... - Page 4 Test leads (In-line Connector) .........................29 Repair and Warranty Calibration, Service and Spare Parts ......................30 Approved Repair Companies .........................31 Return an Instrument for Repair ........................31 End of Life Disposal WEEE Directive ..............................32 Batteries ...............................32 Declaration of Conformity DLRO10HD and DLRO10HDX www.megger.com...
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Page 5: Instrument Safety
„ There are no user-serviceable parts inside the instrument; all servicing, including battery and fuse replacement, must be referred a Megger approved service centre „ When used on hazardous voltages the Megger terminal cover (part number 1002-390) must be used „ This product is not intrinsically safe. Do not use in an explosive atmosphere www.megger.com... -
Page 6: Measurement Connection
Instrument Safety Measurement Connection Only Megger supplied test leads designed for this instrument provide the full safety rating. Voltage The rated measurement connection voltage is the maximum line to earth voltage at which it is safe to connect. CAT IV Measurement category IV: Equipment connected between the origin of the low-voltage Mains Power supply and the distribution panel. -
Page 7: Warning Icons
1 mA is still flowing after an inductive test is completed. This suggests that the inductive load has been tested and is discharging. Do not disconnect the current loop while the discharge warning is showing. www.megger.com DLRO10HD and DLRO10HDX... -
Page 8: Description
Description This User Guide details the DLRO10HD and the DLRO10HDX. Both the DLRO10HD and the DLRO10HDX measure the same tests and parameters, in addition the DLRO10HDX can save, recall and download test results to PowerDB. The DLRO10 range of digital low resistance ohm meters measure resistance in a range of 0.1 µΩ to 2 k. These instruments provide a maximum test current of 10 Amps. -
Page 9: Applications
Applications Applications The DLRO10HD and DLRO10HDX measure low resistance values in applications ranging from railways and aircraft to resistance of components in industry. Any metallic joint can be measured but users must be aware of measurement limitations depending on application. For example, if a cable manufacturer plans to make resistive measurements on a thin wire, a low test current should be selected to prevent heating the wire thereby changing its resistance. -
Page 10: Overview
Test Lead LED Cable Test modes and Off rotary switch Display Mains Power On LED Save Button Fuse USB socket (download records) Contrast button Hazard warning LED during test Mains Power Socket Range Rotary Switch Back-light DLRO10HD and DLRO10HDX www.megger.com... -
Page 11: Display Icons
USB connected Primary Display Mains Power connected Direction of Current flow in a test Battery Status Secondary Display Directional arrow to show current flow above C indicator Directional arrow to show current flow above P indicator www.megger.com DLRO10HD and DLRO10HDX... -
Page 12: Test Mode Rotary Switch
Note: When inductive loads are measured it is necessary to wait for the voltage to stabilise, so the measurement process can take a few seconds or several minutes. DLRO10HD and DLRO10HDX www.megger.com... -
Page 13: Range Rotary Switch
„ Red resistance ranges: Higher 2.5 W (1 A) and 25 W (10 A) power outputs ( shows) Item Description Date and Time Setup (page 21) Resolution and Accuracy (page 10) Delete Test Result Records (page 24) Download Test Result Records (page 23) Recall Test Result Records (page 22) www.megger.com DLRO10HD and DLRO10HDX... -
Page 14: Resolution And Accuracy
* Basic accuracy stated assumes forward and reverse measurements. ** Higher 2.5 W (1 A) and 25 W (10 A) power outputs ( shows). Inductive or Uni-directional mode can introduce an undefined error if an external EMF is present. Basic accuracy at reference conditions. DLRO10HD and DLRO10HDX www.megger.com... -
Page 15: Test Leads
The result in Bi-directional modes is the average of two readings shown by the two secondary displays, with arrows to show the direction of current flow. The large arrow at the top of the display between C1 and C2 shows the measurement current flow. www.megger.com DLRO10HD and DLRO10HDX... -
Page 16: Connection To A Test Piece
Pull out the worn tips and install new ones. Tests with the DH4-C Duplex Hand-spikes or Individual Leads Connect the four leads as shown. In all cases make sure that the potential probes (P1 and P2) are inside the current (C1 and C2) probes. DLRO10HD and DLRO10HDX www.megger.com... -
Page 17: Tests
The last complete three test results are shown. TEST 4. DLRO10HDX only: Save test results (if required). Press . The test result is saved and the memory slot number is shown. The Save screen is shown for three seconds. www.megger.com DLRO10HD and DLRO10HDX... -
Page 18: Manual Bi-Directional Test
. The test result is saved and the memory slot number is shown. The Save screen is shown for three seconds. TEST 3. If the test piece is still connected, press to do another test. 4. DLRO10HDX only: Press as required. DLRO10HD and DLRO10HDX www.megger.com... -
Page 19: Automatic Bi-Directional Test
. The test result is saved and the memory slot number is shown. The Save screen is shown for three seconds. 4. The test automatically continues for subsequent connected test piece. 5. DLRO10HDX only: Press as required. TEST 6. Press to stop the test. www.megger.com DLRO10HD and DLRO10HDX... -
Page 20: Automatic Uni-Directional Test
. The test result is saved and the memory slot number is shown. The Save screen is shown for three seconds. 4. The test automatically continues for subsequent connected test piece. 5. DLRO10HDX only: Press as required. TEST 6. Press to stop the test. DLRO10HD and DLRO10HDX www.megger.com... -
Page 21: Continuous Test
5. DLROHD10X only: If was not pressed in Step 3, save test results if required. Press . The last complete test result is saved and its memory slot number is shown. The Save screen is shown for three seconds. www.megger.com DLRO10HD and DLRO10HDX... -
Page 22: Tests With Automatic Save (Dlrohd10X)
Test results are saved and their memory slot number is shown. The Save screen is shown for three seconds. 4. The test automatically continues for the next connected test piece. TEST 5. Press to stop the test. DLRO10HD and DLRO10HDX www.megger.com... -
Page 23: Automatic Uni-Directional Test
4. Test results are saved and their memory slot number is shown. The Save screen is shown for three seconds. 5. The test automatically continues for the next connected test piece. TEST 6. Press to stop the test. www.megger.com DLRO10HD and DLRO10HDX... -
Page 24: Continuous Test
Last test record is shown while the next test is in progress. TEST 5. Press to stop the test. Test results are saved and their memory slot number is shown. The Save screen is shown for three seconds. DLRO10HD and DLRO10HDX www.megger.com... -
Page 25: Memory Features (Dlro10Hdx)
(Default: DMY). „ Press to toggle between Date and Time. 1. Press to start adjustment. 2. Press to toggle between D/M/Y and HM. 3. Press to adjust. 4. Press to scroll. 5. Press to set. www.megger.com DLRO10HD and DLRO10HDX... -
Page 26: Recall Test Result Records
1. Last saved test result shows. 2. Press to scroll through the test results records. 3. Press to show a record for the selected slot. Screen toggles between date and time when record was saved. DLRO10HD and DLRO10HDX www.megger.com... -
Page 27: Download Test Result Records
) shows only while data download is in progress. If communication to the host Windows computer fails a Communication Error window shows in PowerDB. Tip: If download does not start: Click Initialise, wait for OK to show, then click Download DLRO10HDX Data again. www.megger.com DLRO10HD and DLRO10HDX... -
Page 28: Delete Test Result Records
1. Press (Delete All). Single Delete: Only the last test record in the list can be deleted, at a time. 2. Press to confirm deletion ( shows constant to confirm delete mode). 3. Press to delete. DLRO10HD and DLRO10HDX www.megger.com... -
Page 29: Maintenance
The charge level will go from low to full charge in incremental steps and continue as long as Mains Power is connected (unless a test is in progress). When the battery is fully charged the battery icon will stay steady. Battery full charge Battery charge low Battery discharged: The instrument shuts down automatically. www.megger.com DLRO10HD and DLRO10HDX... -
Page 30: Specifications
Mains Power Input Fuse T 1.25 A, 250 V, HBC ceramic 20 mm x 5 mm Battery Type 6 V, 7 Ah sealed lead acid (return instrument to a Megger authorised repair agent for replacement) Lithium ion coin cell (DLRO10HDX) -
Page 31: Power Lead
Live (Line) Brown Black If a fused plug is used, make sure that it is installed with a 3 A fuse. The instrument can be powered from 100 - 240 V 50 / 60 Hz 90 VA. www.megger.com DLRO10HD and DLRO10HDX... -
Page 32: Accessories
Duplex kelvin clips (3.8 cm (1.5 in)) 2 m (7 ft) 242006-7 Duplex kelvin clips (3.8 cm (1.5 in)) 5.5 m (18 ft) 242006-18 Duplex kelvin clips (3.8 cm (1.5 in)) 9 m (30 ft) 242006-30 DLRO10HD and DLRO10HDX www.megger.com... -
Page 33: Individual Leads
Current clip (current connections) 5.5 m (18 ft) 242041-18 Current clip (current connections) 9 m (30 ft) 242041-30 Test leads (In-line Connector) For details on the connection of lead accessories see ‘DLRO test leads fitted with duplex Connectors’ (DLROTestLeads_DS_en_V03). www.megger.com DLRO10HD and DLRO10HDX... -
Page 34: Repair And Warranty
New instruments are covered by a two year warranty from the date of purchase by the User, the second year being conditional on the free registration of the product on www.megger.com. You will need to log in, or first register and then login to register your product. The second year warranty covers faults, but not recalibration of the instrument which is only warranted for one year. -
Page 35: Approved Repair Companies
Repair and Warranty Approved Repair Companies A number of independent instrument repair companies have been approved to do repair work on most Megger instruments, complete with genuine Megger spare parts. Consult the Appointed Distributor / Agent about spare parts, repair facilities and advice. -
Page 36: End Of Life Disposal
End of Life Disposal WEEE Directive The crossed out wheeled bin crossed out wheeled bin icon placed on Megger products is a reminder that this instrument must not be dispose of in general waste at the end of its life. -
Page 37: Declaration Of Conformity
Limited described in this User Guide is in compliance with Directive 2014/53/EU. Other equipment manufactured by Megger Instruments Limited described in this User Guide is in compliance with Directives 2014/30/EU and 2014/35/EU where they apply. The full text of Megger Instruments EU declarations of conformity are available at the following internet address: megger.com/eu-dofc. www.megger.com... - Page 38 DLRO10HD and DLRO10HDX www.megger.com...
- Page 39 DLRO10HD and DLRO10HDX...
- Page 40 OTHER TECHNICAL SALES OFFICES Toronto CANADA, Sydney AUSTRALIA, Madrid SPAIN, Mumbai INDIA, and the Kingdom of BAHRAIN. Megger products are distributed in 146 countries worldwide. This instrument is manufactured in the United Kingdom. The company reserves the right to change the specification or design without prior notice.
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