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Megger DLRO10HD Dual Power 10A Low Resistance Ohmmeter 1006-603

£3,478.80
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Megger DLRO10HD Dual Power 10A Low Resistance Ohmmeter
Temperature Coefficient < 0.01% per ºC, from 5 ºC to 40 ºC
Maximum Altitude 2000m (6562 ft) to full safety specifications
Display Size/Type Main 5 digit + 2 x 5 digit secondary displays
Battery Type 6 V, 7Ah sealed lead acid
Voltage Input Range 90 - 264 V, 50-60 Hz
Charge Time 8 Hours
Backlight LED backlight
Battery Life >1000 Auto (3 sec) tests
Auto Power Down 300s
Mode Selection Rotary switch
Range Selection Rotary switch
Weight 6.7 kg
Case Dimensions L315 mm x W285 mm x H181 mm
Pouch for Test Leads Yes (lid mounted)
Test Leads DH4 lead set included
IP Rating IP65 case closed, IP54 battery operation
Safety Rating In accordance with IEC61010-1, CATIII 300V when used with optional terminal cover (details in ordering information)
Operating Temp/Humidity -10 °C to +50 °C
(14 °F to 122 °F) <90% RH
Reference Conditions 20 °C ±3 °C
Storage Temp/Humidity -25 °C to +60 °C, <90% RH
EMC In accordance with IEC61326-1 (Heavy industrial)
Noise 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.
Maximum Lead Resistance 100 mΩ total for 10 A operation irrespective of battery condition.
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Description


 

Megger DLRO10HD Dual Power 10A Low Resistance Ohmmeter


Equally at home in the laboratory, the workshop or in the field, on the bench or on the ground, Megger’s new heavy duty DLRO10HD low resistance ohmmeter combines rugged construction with accuracy and ease of use. It features an internal rechargeable battery and can also operate from a mains supply, even if the battery is completely flat.


Key Features:

• High or low output power selection for condition diagnosis
• Rechargeable battery or line power supply, continuous operation, even with dead battery
• 10 A for 60 seconds, less time waiting to cool, great for charging inductance
• High input protection to 600 V, inadvertent connection to line or UPS voltage will not blow a fuse
• Heavy duty case: IP 65 lid closed, IP54 operational (battery operation only)
• Rotary switch selects one of five test modes, including auto start on connection, giving ease of use


Overview:

Test Current Resistance Range Resolution
(as displayed)		 Basic Accuracy* Full Scale Voltage Max Power Output
0.1mA 0 to 
2500Ω		 0.1 Ω ±0.2% 25 mV 25 μW
0.1mA 0 to
250.00 Ω		 0.01 Ω ±0.2% 25 mV 2.5 μW
1mA 0 to
25.000 Ω		 1 mΩ ±0.2% 25 mV 25 μW
10mA 0 to
2500.0 mΩ		 0.1 mΩ ±0.2% 25 mV 250 μW
100mA 0 to
250.00 mΩ		 0.01 mΩ ±0.2% 25 mV 2.5 μW
1A 0 to
25.000 mΩ		 1 μΩ ±0.2% 25 mV 25 mW
10A 0 to
2500.0 µΩ		 0.1 μΩ ±0.2% 25 mV 0.25 W
1A 0 to
2500.0 mΩ		 0.1 mΩ ±0.2% 2.5 V 2.5W
10A 0 to
250.00 mΩ		 0.01 mΩ ±0.2% 2.5 V 25W


The DLRO10HD measures 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.

Measurements on electric motors and generators will be inductive and require the user to understand the inductive mode and charging process before a correct result is achieved.

The DLRO10HD is well suited to measuring thick conductors, bonds and quality of welding because of its 10 A range for resistance values up to 250 mΩ.

Electromagnetic noise induced into the leads can interfere with a reading. A noise symbol alerts the user and prevents a measurement when the instrument detects noise above its threshold.

When dissimilar metals are joined a thermocouple effect is created. Users should select a bidirectional mode to ensure cancellation of this effect. The instrument measures with current flowing in both directions and averages the result.

Normal mode is initiated by pressing the ‘Test’button after connecting the test leads to the unit under test. Continuity of all four connections is checked. Current is applied in both forward and reverse direction following which measurement is displayed.

Automatic mode is started as soon as the probes make contact. Forward and reverse current measurements are made and the average value is displayed. This mode is ideal when working with the supplied DH4 handspikes. Each time the probes are removed and reconnected to the load a new test will be performed without the need to press the test button.

TEST modes

Automatic unidirectional mode applies current in one direction only to speed up the measurement process. However thermal EMF resulting from dissimilar metal bonds can cause lower accuracy. Test starts automatically when probes are connected.

Continuous mode allows repeated measurements to be made on the same sample. Simply connect the test leads and press the test button. The measurement is updated every three seconds until the circuit is broken.

Inductive mode is selected when measuring resistance on, for example, motors and generators. When measuring inductive loads it is necessary to wait for the voltage to stabilise as the inductive element is charged. Test leads are firmly connected to the device under test and the ‘Test’button pressed. The instrument will pass the selected current through the sample continuously in one direction only and take repetitive readings that will gradually decrease to the true value as the voltage stabilises. The operator decides when the result is stable and presses the ‘Test’button to terminate the test.


Features & Specification

More Information
Key Features Multiple operating modes, Quick, accurate results, 0.1 µΩ to 2000 Ω, Fuse protected to 600 V, 10A for 60 seconds, IP65 rated, Small and weighs less than 15 kg
Product Stock Status Next Day Delivery (subject to availability)
Manufacturer Megger
Short Description
Megger DLRO10HD Dual Power 10A Low Resistance Ohmmeter
Temperature Coefficient < 0.01% per ºC, from 5 ºC to 40 ºC
Maximum Altitude 2000m (6562 ft) to full safety specifications
Display Size/Type Main 5 digit + 2 x 5 digit secondary displays
Battery Type 6 V, 7Ah sealed lead acid
Voltage Input Range 90 - 264 V, 50-60 Hz
Charge Time 8 Hours
Backlight LED backlight
Battery Life >1000 Auto (3 sec) tests
Auto Power Down 300s
Mode Selection Rotary switch
Range Selection Rotary switch
Weight 6.7 kg
Case Dimensions L315 mm x W285 mm x H181 mm
Pouch for Test Leads Yes (lid mounted)
Test Leads DH4 lead set included
IP Rating IP65 case closed, IP54 battery operation
Safety Rating In accordance with IEC61010-1, CATIII 300V when used with optional terminal cover (details in ordering information)
Operating Temp/Humidity -10 °C to +50 °C
(14 °F to 122 °F) <90% RH
Reference Conditions 20 °C ±3 °C
Storage Temp/Humidity -25 °C to +60 °C, <90% RH
EMC In accordance with IEC61326-1 (Heavy industrial)
Noise 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.
Maximum Lead Resistance 100 mΩ total for 10 A operation irrespective of battery condition.

Delivery

Updated January 2024

Please note, our cut-off time is 2:00pm

Orders requiring calibration 

Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration.
Be assured they will ship on the next dispatch this in most cases should not add more than 24 hours to your delivery.

Bank/Public Holidays

Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope
of our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Revised March 2021)

Service Price
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value OVER £75.00 ex VAT FREE
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value UNDER £75.00 ex VAT £4.95
Next WORKING Day (excludes Saturdays, Sundays and public holidays)  – UK Mainland only - Zones A & B  - ANY order value - Order by 2:00pm £7.75
Saturday ANYTIME Delivery - Order by 2:00pm £9.95
 

 

 

 

 

Delivery Surcharges

Because of the high cost of carriage, we regretfully need to apply a surcharge on all deliveries made in the following regions:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands (Charges are calculated at the checkout).
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
  • Zone E - Northern Ireland (Charges are calculated at the checkout).
  • Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at sales@isswww.co.uk

Export 

All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to discuss your requirements.
All stated prices are subject to VAT at the current rate where applicable.
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