background image

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 440V 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 over-voltages likely to be met in fixed

wiring installations.

Complies with the following parts of EN61557, Electrical safety

in low voltage systems up to 1000V a.c. and 1500V d.c. –

Equipment for testing, measuring or monitoring of protective

measures:-

Part 1 – General requirements

Part 2 – Insulation resistance

Part 4 – Resistance of earth connection and 

equi-potential bonding

Summary of Contents for BMM80 Series

Page 1: ...ve no broken or cracked insulation Ensure that hands remain behind guards of probes clips when testing U K Safety Authorities recommend the use of fused test leads when measuring voltage on high energ...

Page 2: ...he instrument enables the optional Megger SP6F Switched Probe to be used for two handed probe operation The 250V 500V and 1000V ranges can be used to test electrical installations in compliance with B...

Page 3: ...strument is switched to the OFF position when not in use Backlight The backlight is activated by pressing the key The backlight will remain illuminated for approximately one minute before automaticall...

Page 4: ...Testing and value assessment can be found in Megger Limited publications listed in the Accessories page Automatic Discharge When the TEST button is released after an insulation test or re pressed if...

Page 5: ...ossible sources of error Measurements and results can be effected by the following The impedance of operating circuits connected in parallel Impedance such as inductors that vary during the measuremen...

Page 6: ...F The measured capacitance is indicated on the display 1 Set the selector switch to uF 2 Connect the test leads 3 After a short settling time the reading will be displayed automatically Zeroing of uF...

Page 7: ...over Remove the cells if the instrument is not going to be used for an extended period of time Fuse Checking and Replacement To check the instrument fuse switch to an insulation range and press the TE...

Page 8: ...1999mV a c 16 460 Hz 5 5 digits d c milliVolts zeroing Up to 9 9mV Input resistance 3M CAPACITANCE Measuring Range 0 1nF to 9 99uF Accuracy 3 2digits 0 2nF uF zeroing up to 10nF Basic and service erro...

Page 9: ...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 insulatio...

Page 10: ...erating humidity 90 RH at 40 C max Storage temperature range 25 to 65 C Calibration Temperature 20 C Maximum altitude 2000m Dust and water protection IP54 Temperature coefficient 0 1 per C WEIGHT 742g...

Page 11: ...contact Megger Limited or Megger Archcliffe Road Valley Forge Corporate Center Dover 2621 Van Buren Avenue Kent CT17 9EN Norristown PA 19403 England U S A Tel 44 0 1304 502243 Tel 1 610 676 8500 Fax 4...

Page 12: ...l U S A Fax 1 214 331 7399 Z A Du Buisson de la Couldre 23 rue Eug ne Henaff 78190 TRAPPES Tel 33 0 1 30 16 08 90 FRANCE Fax 33 0 1 34 61 23 77 This instrument is manufactured in the United Kingdom Th...

Reviews: