Avo b131 User Manual

AVO® MEGGER

®

B131

• Dual Display, Dual ­Parameter Measurements

• 0,5% Basic Accuracy

• Parallel/Series Mode

• Relative Mode for
Deviation Measurement

DESCRIPTION

The Model B131 Universal LCR Meter
is a portable instrument designed for
quick, easy testing and analysing of
discrete components in a broad
range of applications. The unit will
accurately measure the value of
inductances, capacitances and
resistances at frequencies of 120 Hz
and 1 kHz.

The B131 provides a high 0,5%
average accuracy and is capable of
measuring electrolytic / ceramic
capacitors, transformers, filter coils,
speaker coils as well as standard LCR
components. Additionally the
instrument has many special features
which have been incorporated for a
variety of differing applications.

Dual Display

The unique Dual Display allows the
meter to simultaneously display both
the numerical L/C/R values as well as
D/Q (dissipation/quality) factor of
any inductance or capacitance
measurement. A secondary display
can be set to show component
values in terms of percentage when
the tolerance mode is activated, as
well as the status of Parallel or Series
mode data.

Dual-Frequency

It is important for the user to test
and evaluate components at similar
measuring frequencies to the
components’ actual operating
frequencies. The B131 LCR meter
provides two of the most commonly
used test frequencies 120 Hz and 1
kHz to simulate the actual
component application condition.
For example, a voice coil is generally
rated at 1 kHz whereas power circuit
applications are rated at 120 Hz.

Parallel/Series Mode

The B131 LCR meter is capable of
showing all the measured values in
series or parallel equivalent circuits.
The parallel mode is the default for
capacitance and resistance measure­ments and the series mode is the
default for inductance measurement.

Tolerance Mode

The tolerance modes are 1%, 5% and
10% respectively for the Inductance,
Capacitance and Resistance
functions. This feature has been
designed for fast convenient
component sorting, removing the
necessity of the user having to take
readings each time a new component
is being measured. Once the
tolerance mode has been selected,
the meter will indicate a single
“beep” for a component in tolerance
and three consecutive “beeps” for
components out of tolerance.

Static Recording

The Static Recording Function
provides convenient statistical
information when measuring bundles
of components either in tape and reel
or bulk packing. When testing a
batch of similar components the
values can automatically be stored
into memory. Calculations are then
performed in the static recording
mode and the display will indicate
the maximum value, the minimum
value and the average value of the
batch of components. An ideal
feature when company quality
procedures require routine or
continuous testing of components
during incoming goods inspection.

Calibration

This function is performed to
calibrate the meter internally at both
the upper and lower limits of each
range. It will also calibrate externally
to compensate for connector
residues present whilst using test
leads.

Relative Mode

This function is useful for value
correlation and component
comparison applications. By
pressing the “REL” key the display
will be set to zero, storing the
present reading as the reference
value. All subsequent readings in
terms of their plus or minus value
with comparison to the original
stored value are then displayed.

APPLICATIONS

The instrument can be used in the
Autorange or Manual mode and is
designed for measuring the value of
discrete components. It is suited for
use in field service applications and
for laboratory or repair workshop
requirements. Equally the advance
features make it invaluable for batch
checking of components in quality
assurance and inspection situations.
As well as measuring standard
component parameters, the B131 can
be used as a component analyser for
determining the Q and D factors.

Universal LCR Meter

AVO INTERNATIONAL

Item (Qty) Order Code

LCR Meter ......................................................................B131

Included Accessories

Test Leads including clips ....................................8101-061

Rubber Holster .......................................................8101-062

9 V Battery..............................................................................

Optional Accessories

Test Leads including Clips ...................................6131-460

SMD Tweezers ........................................................6220-403

Features Include:

Full autoranging, two major measuring methods: parallel
and series mode, two selected frequencies, max/min/avg
record, D/Q factor test mode, relative mode, calibration,
tolerance mode, auto power off.

Parameters Measurement

L.C.R and D/Q

Measurement Circuit Mode:

1) Capacitance/Resistance Measurement - Defaults to
parallel mode for all ranges.

2) Inductance Measurement - Defaults to series mode for
all ranges. Both parallel and series mode data are
available through simple key operation.

Display

L.C.R: maximum 9999 display except at 10 mF (120 Hz)

and 1 mF (1 kHz) measurement ranges which
have max 1999 display.

D/Q: 3 digits, maximum 999 display (AUTO RANGE)

Ranging Mode

Auto and manual.

Test Frequency

1 kHz & 120 Hz.

Measurement Rate

1 measurement/second, normal.

Response Time

1 second/DUT (device under test) manual range.

Power Supply

9 V Battery 6LF22 or equivalent.
Optional ExternalPower Supply:

12 V d.c. (MIN)
15 V (MAX) load: 15 mA. double insulated for 250 V

CAT II (not available from AVO INTERNATIONAL)

Resistance Range

10 MΩ, 1 MΩ, 100 kΩ, 10 kΩ, 1 kΩ, 100 Ω, 10 Ω.
Accuracy
@ 10 MΩ ± (2,0% + 8 digits)@ 1 MΩ ± (0,5% + 5 digits)
@ 100 kΩ± (0,5% + 3 digits)
@ 10 kΩ ± (0,5% + 3 digits)
@ 1 kΩ ± (0,5% + 3 digits)
@ 100 Ω ± (0,8% + 5 digits)
@ 10 Ω ± (1,2% + 8 digits)

Inductance

Test Frequency
120 Hz/1 kHz (DF <0,5)
Range 10000 H, 1000 H, 100 H, 10 H, 1 H, 100 mH, 10 mH,

1mH
Accuracy
@ 10000 H Accuracy not specified 120 Hz only
@ 1000 H ± (1,0% + (Lx/10000)% + 5 digits)

120 Hz only

@ 100 H ± (0,7% + (Lx/10000)% + 5 digits) 120 Hz

± (1,0% + (Lx/10000)% + 5 digits) 1 Hz
@ 10 H ± (0,7% + (Lx/10000)% + 5 digits)
@ 1 H ± (0,7% + (Lx/10000)% + 5 digits)
@ 100 mH ± (1,0% + (Lx/10000)% + 5 digits) 120 Hz

± (0,7% + (Lx/10000)% + 5 digits) 1 kHz
@ 10 mH ± (2,0% + (Lx/10000)% + 5 digits) 120 Hz

± (1,2% + (Lx/10000)% + 5 digits) 1 kHz
@ 1 mH ± (2,0% + (Lx/10000)% + 5 digits)

1 kHz only

Capacitance

Range 10 mF, 1 mF, 100 µF, 10 µF, 1 µF, 100 nF, 10 nF, 1 nF
Accuracy
@ 10 mF ± (5,0% + 5 digits)(DF <0,1) 120 Hz only
@ 1 mF ± (1,0% + 5 digits)(DF <0,1) 120 Hz

± (5,0% + 5 digits)(DF <0,1) 1 kHz
@ 100 µF ± (0,7% + 3 digits)(DF <0,5) 120 Hz

± (1,0% + 5 digits)(DF <0,1) 1 kHz
@ 10 µF ± (0,7% + 3 digits)(DF <0,5)
@ 1000 nF ± (0,7% + 3 digits)(DF <0,5)
@ 100 nF ± (0,7% + 3 digits)(DF <0,5)
@ 10 nF ± (1,0% + 5 digits)(DF <0,1) 120 Hz

± (0,7% + 5 digits)(DF <0,5) 1 kHz
@ 1000 pF ± (1,0% + 5 digits)(DF <0,5) 1 kHz only

Dimensions

7.5 H x 3.5 W x 1.5 D in.
(192 H x 90 W x 37 D mm

Weight

390 gms

Safety

Meets IEC 1010-1, instrument not intended to be used on
live circuits.

EMC

In accordance with IEC61326 including Amendment No.1.

SPECIFICATION

ORDERING INFORMATION

AVO INTERNATIONAL

MEGGER® B131 Universal LCR Meter

The Company reserves the right to change the specification or design without prior notice. AVO and MEGGER are the Registered Trade

Marks of AVO INTERNATIONAL LIMITED.

Tel: [phone]

Fax: [phone]

E-mail: sjelectronics@.co.uk

Web: www.sjelectronics.co.uk