AMETEK MX CTSH - Manual (Page 22)

California Instruments Revision H 22
User Manual MX Series CTSH Compliance Test System
2.7 EN 61000-4-13 Interharmonics and Harmonics Immunity Test
The EN 61000-4-13 is presently only in draft form and the implementation used in the MXCTS system uses
applies to the first draft of the immunity test specification. The purpose of this test is to verify a EUT’s
immunity to signaling frequencies that may be present on the AC line. These signaling frequencies are not
always harmonically related to the fundamental frequency. As such, this test applies both harmonics and
interharmonic frequencies in addition to the fundamental AC voltage.
The generation of interharmonics requires the addition of an independent signal generator in the MX Series
AC power source. (Option -413) If this optional -413 interharmonics generator hardware option is present
in the MX, the EN 61000-4-13 test window will be available from the MXGUI program.
The EN 61000-4-13 draft specification calls out test levels for three product classes, class 2, 3 and X. Class
X involved user defined test levels. Test levels for class 2 and 3 are implemented in the MXGUI while test
levels for class X may be set by the user in the IEC413.413 file.
Note that EN 61000-4-13 is presently only in draft form and as such, hardware and/ or software changes to
this test option may be required at a future date.
2.8 EN 61000-4-14 Voltage Fluctuations
The EN 61000-4-14 is aimed at testing a product for immunity against voltage fluctuations that can occur on
the public utility. The nature of the voltage fluctuations is different from those tested under EN 61000-4-11
however. The fluctuations covered in this standard are less severe and involve typical high and low line
conditions.
California Instruments’ CTS system supports full compliance EN 61000-4-14 testing. The EN 61000-4-14
test is implemented in the MXGUI Windows
→
software. To accommodate changes in the specification,
test levels and duration can be changed by the operator or loaded from disk if needed.
2.9 EN 61000-4-17 DC Ripple
The EN 61000-4-17 is aimed at testing a DC powered product for immunity against voltage ripple. Ripple is
often caused by feed-through from the AC input section of a DC supply and exhibits itself as a small AC
signal riding on the DC output. The EN 61000-4-17 standards covers test levels and frequencies for testing
the immunity of DC products against such phenomena.
The CTS system supports full compliance EN 61000-4-17 testing The EN 61000-4-17 test is implemented
in the MXGUI Windows
→
software. To accommodate changes in the specification, test levels and
duration can be changed by the operator or loaded from disk if needed.
2.10 EN 61000-4-27p Three Phase Voltage Unbalance
The MXCTS system supports pre-compliance EN 61000-4-27 testing. The EN 61000-4-27 test is
implemented in the MXGUI Windows
→
software. To accommodate changes in the specification, test
levels and duration can be changed by the operator or loaded from disk if needed.
2.11 EN 61000-4-28 Voltage Frequency Variations
The MXCTS system supports full compliance EN 61000-4-28 testing. The EN 61000-4-28 test is
implemented in the MXGUI Windows
→
software. To accommodate changes in the specification, test
levels and duration can be changed by the operator or loaded from disk if needed.
2.12 EN 61000-4-29p DC Voltage Dips, Interruptions and Variations
The MXCTS system supports pre-compliance EN 61000-4-29 testing. The EN 61000-4-29 test is
implemented in the MXGUI Windows
→
software. To accommodate changes in the specification, test
levels and duration can be changed by the operator or loaded from disk if needed.