Compliance West LCB-1010-B User manual

Dear Customer:
Congratulations! Compliance West USA is proud to present you with
your LCB-1010-B leakage current measurement instrument. Your
instrument features state-of-the-art accuracy for making leakage current
measurements.
To fully appreciate all the features of your new instrument, we suggest
that you take a few moments to review this manual. Compliance West
USA stands by your instrument with a full one-year warranty. If the need
arises, please don't hesitate to call on us.
Thank you for your trust and confidence.
Rev 2, April 2019

Section 1.....................................................................................................................................................1
An Introduction to leakage current testing with the LCB-1010-B ...............................................1
Safety Precautions........................................................................................................................1
Test Personnel..............................................................................................................................1
Testing Area.................................................................................................................................1
Section 2.....................................................................................................................................................2
LCB-1010-B Configuration .........................................................................................................2
Specifications...............................................................................................................................2
Configuration 1..............................................................................................................2
IEC 61010-1:2010 Fig. A.1 .............................................................................2
Configuration 2..............................................................................................................3
IEC 61010:2010 Fig. A.3 ................................................................................3
Configuration 3..............................................................................................................3
IEC 61010-1:2010 Fig A.4 ..............................................................................3
Section 3.....................................................................................................................................................4
Operating Instructions..................................................................................................................4
Setting up your Tester..................................................................................................................4
Fuse Verification Check...............................................................................................................5
Verification of Proper Operation..................................................................................................5
Section 4.....................................................................................................................................................6
Maintenance and Calibration .......................................................................................................6
Introduction..................................................................................................................................6
Service Information......................................................................................................................6
General Maintenance ...................................................................................................................6
Cleaning .......................................................................................................................................6
Calibration Information................................................................................................................6
Section 5.....................................................................................................................................................7
Technical Assistance....................................................................................................................7
Appendix A ................................................................................................................................................8
Tolerance comparison for LCB Configuration 1 (Fig.A.1)..........................................................8
Tolerance comparison for LCB Configuration 2 (Fig.A.3)..........................................................9
Tolerance comparison for LCB Configuration 3 (Fig.A.4)..........................................................10

1
Section 1
An Introduction to leakage current testing with the LCB-1010-B
Some amount of leakage current exists in all modern electrical and electronic equipment that connects to an
AC power source. Leakage current is always unintentional: either due to capacitive coupling from the AC
mains circuit to ground (such as exists in AC motors) or as an unintended side effect of EMI suppression
components (such as capacitors connected from AC mains to the chassis of the equipment). The amount of
leakage current and the measurement methods are governed by various end-product safety standards. These
standards often refer to the international standard IEC 60990 - Methods of Measurement of Touch Current
and Protective Conductor Current and other standards (i.e. IEC 61010) for the design and specification of the
leakage current measurement network.
Compliance West USA offers several different leakage current networks to perform testing to numerous end-
product standards. These networks comply with the requirements of the International Committee of Testing
Laboratories Operational Procedure 113 (IECEE CTL-OP 113 Ed. 1.1). This document outlines
requirements for design, calibration, and frequency response of the leakage measurement instrument.
The Compliance West USA LCB leakage current measurement instruments are leakage current networks
only - they must be used with a suitable voltmeter to perform leakage current measurements. The voltmeter
used can significantly affect the results of the measurement. The voltmeter used must have adequate
frequency response to measure the AC leakage-current voltages, and have an input impedance of 1 Megaohm
or greater.
Safety Precautions
Leakage current testing is inherently dangerous because the Equipment Under Test (EUT) is generally
ungrounded during testing. In some safety standards, an additional single-fault condition is introduced during
leakage current testing, which may expose the test operator to hazardous or even lethal voltages.
Test Personnel
Test operators must be properly trained in the procedures for safety performing leakage current testing. Metal
jewelry should not be work during testing. Operators should not allow others into the testing area, especially
when tests are being conducted. Organization is to be stressed. The operator should keep the test area free
of unused leads and equipment.
Testing Area
The area used for conducting leakage current tests should be as remote as possible from normal production
line activities. Only personnel conducting the test should be allowed in the area, and it should be taped or
roped off to preclude casual entry by other employees. In addition, the area should be marked "WARNING
- HIGH VOLTAGE TESTING" or the equivalent to warn others of the nature of the testing taking place.
The bench being used should be non-conductive, and any exposed metal parts should be tied together and
grounded.

2
Section 2
LCB-1010-B Configuration
This manual contains a description of the three configurations that make up your LCB-1010-B instrument.
Each configuration contains only one leakage current network.
Your instrument is warranted for a period of one year upon shipment of the instrument to the original
purchaser.
Specifications
Each network configuration includes an input fuse to protect against excessive current that could damage the
leakage current network. If the LCB-1010-B is used incorrectly, the internal fusing may not protect the
internal network components from damage. Such damage is not covered under warranty. For continued
protection against risk of fire or electric shock, replace the internal fuse only with a type and rating as
specified in this manual.
Voltage Rating
0-264Vrms AC to enclosure, O.V. Cat II, 50-440Hz at input terminals1
Current Rating
100mA maximum
Fuse Rating (F1)
Littelfuse 370 series, type TR5, rated 63mA, 250V, fast-acting2
Environmental
10-90°rH, non-condensing; 0-2000m altitude; 10-40°C
Components
High-frequency, low-parasitic, individually selected to maintain
+/- 1.0% tolerance
Frequency Response3
50-60 Hz: +/- 3.5% accuracy
>60 Hz –1MHz: +/- 5% accuracy
Note 1: Current exceeding the current rating will cause the fuse to open
Note 2: Fuse is specified to hold for 1 hour (not open) at 150% of the fuse current rating
Note 3: LCB observed accuracy is in accordance with CTL Decision Sheet no. DSH 251b and e. See
Appendix A for tolerance graphs.
Configuration 1
IEC 61010-1:2010 Fig. A.1
Table 1 Configuration 1 Specifications
A, B
Input terminals to connect to EUT
Rs
1500 Ohm
Cs
0.22 uF
Rb
500 Ohm
R2
10 kOhm
C3
0.022 uF
U1, U2, COM
Output terminals for connection to voltmeter

3
Configuration 2
IEC 61010:2010 Fig. A.3
Table 2 Configuration 2 Specifications
A, B
Input terminals to connect to EUT
Rs
1500 Ohm
Cs
0.22 uF
Rb
500 Ohm
C, D
Output terminals for connection to voltmeter
Configuration 3
IEC 61010-1:2010 Fig A.4
Table 3 Configuration 3 Specifications
A, B
Input terminals to connect to EUT
Rs
375 Ohm
Cs
0.22 uF
Rb
500 Ohms
C, D
Output terminals for connection to voltmeter

4
Section 3
Operating Instructions
This section describes how to set up and make measurements with your instrument. We recommend that you
read the entire section carefully so that you can use all the features of your instrument.
Setting up your Tester
Your LCB leakage current measurement instrument is shipped with three cables that connect to detachable
terminal blocks on the input and output side on the front of the instrument. One end of each cable is
connected to a detachable terminal block as shown in Error! Reference source not found. below. The other
end of each cable is unterminated: these wires should be connected to the EUT and the voltmeter to the output
connector. Note that these cables may be disconnected from the terminal blocks if you choose to use other
test leads.
Figure 1 Test lead wiring
The provided test cables are shielded, and the cable shield is connected to the metal enclosure of the LCB
instrument. The shielded cables may be left unterminated or grounded as needed for testing.

5
Fuse Verification Check
To check the fuse, connect an ohmmeter between Aand B. An open circuit measurement indicates an open
fuse, and the fuse must be replaced before use.
Verification of Proper Operation
Once your LCB has successfully passed the fuse verification, you can proceed to perform a verification of
proper operation, for this matter use a DC ohmmeter. Please refer the following table to know the
measurements points and the expected value depending on your LCB configuration. If any of your
measurements are out of tolerance, please contact the manufacturer for further assistant.
Table 4 LCB Verification Points and Values
LCB
Measurements points
Expected Value (Ω)
Tolerance (Ω)
Config 1
(Fig.A.1)
A-U1
1500
1485 - 1515
U1-B
500
495 - 505
A-B
2000
1980 - 2020
U1-U2
10000
9900 - 10100
Config 2
(Fig.A.3)
A-B
2000
1980 - 2020
A-C
1500
1485 - 1515
C-D
500
495 - 505
Config 3
(Fig.A.4)
A-C
375
371.25 - 378.75
A-B
875
866.25 - 883.75
B-C
500
495 - 505
A-C
375
371.25 - 378.75