Megger DLRO10x Digital Low Resistance Ohmmeter

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Megger DLRO10x Digital Low Resistance Ohmmeter

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The Megger DLRO10x Digital Low Resistance Ohmmeter is a fully automatic ductor that selects the most suitable test current up to 10 A d.c. to measure resistance from 0.1 μΩ to 2000 Ω, on one of seven ranges.

For users who desire more control over the measurement process, the DLRO10X ductor uses a menu system controlled by a two-axis paddle to allow the user to manually select the maximum test current.

DLRO10X ductors also add real time download of results and on board storage for later download to a PC.

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Features

Accurate results in under three seconds
Auto current reversal cancels standing emfs
Fuse protected to 600 V
NiMH battery reduces weight
250 mW power limit (with optional override) to avoid heating the test sample
Automatically detects continuity in potential and current connections
Visible warning of high voltages present at the terminals
Visible warning of current flowing in the test sample
Multiple operating modes including fully automatic
Alpha-numeric keypad for entering test notes
User settable high and low limits
Autoranging with Manual option
Printer output and memory

Specifications

Measurement	Mode	Manual, Auto, Continuous, Inductive, Unidirectional
	Control	Fully Automatic/Manual
	Speed	<3s for forward & reverse current and to display average
Display	Range and Safety	Large backlit LCD
Test Method	Single cycle reversing d.c. ratio-metric 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
	Life	Typically 1000 x 10 A tests before recharge
	Recharge	Via external 90 V - 260 V 50/60 Hz charger or from 12 to 15 V dc supply
Charging Rate	Standard	2.5 hours to 90% capacity, 4 hrs for full charge
Temperature	Operation	+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

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Megger DLRO10x Digital Low Resistance Ohmmeter

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