Megger BMM2000 Series Guía de usuario descargar pdf (Pagina 11)

then calculate the measurement range. This is the range of

measurement over which the error in service is less than 30%

of the reading. Digital instruments are affected by the number

of digits error – for example a value 0,10Ω measured with the

continuity range may give a display in the range 0,07Ω to

0,13Ω which is a maximum error of 30%. Therefore the

measurement range measuring low resistance is 0,10Ω to

99,9Ω. When checking that a measurement does not exceed a

limit, the service error needs to be taken into account and

these tables enables this to be done quickly and easily. These

will guarantee that the value being measured is greater than or

less than the limit value specified as appropriate.

Insulation Resistance – MΩ

Limit Min.Indicated Limit Min.Indicated

Reading Reading

0,10 0,14 2,00 2,12

0,20 0,25 3,00 3,16

0,30 0,35 4,00 4,20

0,40 0,46 5,00 5,24

0,50 0,56 10,00 10,8

0,60 0,66 20,00 21,2

0,70 0,77 30,00 31,6

0,80 0,87 40,00 42,0

0,90 0,98 50,00 52,4

1,00 1,08 100,00 94,0

Continuity Resistance – Ω

Limit Max. Indicated Limit Max. Indicated

Reading Reading

0,10 0,06 2,00 1,88

0,20 0,15 3,00 2,84

0,30 0,25 4,00 3,80

0,40 0,34 5,00 4,76

0,50 0,44 10,00 9,56

0,60 0,54 20,00 18,8

0,70 0,63 30,00 28,4

0,80 0,73 40,00 38,0

0,90 0,82 50,00 47,6

1,00 0,92 100,00 92,0

SAFETY

The instruments meet the requirements for double insulation to

IEC 1010-1 (1995), EN 61010-1 (1995) to Category III*, 300V

phase to earth (ground) and 500V phase to phase, without the

need for separately fused test leads. If required, fused test leads

are available as an optional accessory.

* Relates to the transient overvoltages likely to be met in fixed

wiring installations.

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Megger BMM2000 Series Guía de usuario Pagina 11

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