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specification even if the fuse is blown.If the voltmeter operation is

in question, test the voltmeter on a known source.

1.  Set the selector switch to V.

2.  Connect the test leads.

3.  After a short settling time, the reading will be displayed

automatically.

Millivolt Tests (mV)

The measured a.c. or d.c. voltage is indicated on the display.

1.  Set the selector switch to mV.

2.  Select either a.c. or d.c. mV using the

key.

3.  Connect the test leads.

4.  After a short settle time, the reading will be displayed

automatically.

Note: Live circuit warning does not function on mV range.

Zeroing of d.c. mV (no zero facility on a.c. mV)

Any standing offset on the d.c. mV range can be zeroed (Up to

9,9mV). The zero information is retained in non-volatile

memory and so will be remembered when the instrument is

switched OFF.

1.  Select the d.c. mV range.

2.  Short the test leads together.

3.  When the reading has stabilised, press the TEST button.

The zero offset symbol 

will appear.

4.  To release the zero offset press the TEST button again.

Capacitance Tests (uF)

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

Offsets on the uF range can be zeroed (Up-to 10,0nF). The

zero information is retained in non-volatile memory and so will

be remembered when the instrument is switched OFF.

1. Select the uF range.

2.  Disconnect the test leads from the circuit under test.

3.  When the reading has stabilised, press the TEST button.

The zero offset symbol

will appear.

4.  To release the zero offset press the TEST button again.

Using the MEGGER SP6F Switched Probe
Operation:

The Megger SP6F is an accessory for designated

Megger installation test instruments. When fitted in the specially

designed connector, in place of the existing ‘Low’ lead, the SP6F

acts as a remote test button to operate the instrument and as a

‘Low’ probe. This simplifies instrument control and two-handed

probing. The SP6F is suitable for use with Megger insulation test

instruments up to 1kV output test voltage.
Safety:

Meets the safety requirements for double insulation to

IEC1010-2-031 (1995), EN61010-2-031 (1995), IEC1010-1

(1995), EN61010-1 (1995) Category III*, 300V phase to earth

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...

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