August 21, 2015 -- Fairport, NY -- Saelig Company, Inc. announces the availability of the
TBLC08 Line Impedance Stabilization Network
(LISN) which enables measurements of line-conducted interference within the range of 9kHz to 30MHz, according
to the CISPR16 or other standards, before any formal testing commences. The TBLC08 is designed especially for pre-compliance
testing of single phase, AC-powered equipment with supply voltages up to maximum 260V. Noise transmitted on the
line and neutral conductors coming from equipment under test can now easily be measured. The TBLC08 is also equipped
with a switchable limiter/attenuator and an artificial hand connection for simulating handheld equipment.
Formal compliance measurements of AC line-powered products requires an expensive set-up consisting of an anechoic
or screened chamber, a measurement receiver that complies with the requirements of CISPR 16 or other standards,
a 50uH LISN, and a suitable table for the equipment being tested. This all takes great effort and cost in order
to obtain optimum accuracy and repeatability. However, pre-compliance measurements can be done before formal testing
during the product design phase, to give an approximation of the EMC performance of the Device Under Test (DUT)
at a fraction of the cost of full compliance testing. This gives great confidence of success when it comes time
for the expensive testing to be done. Now useful measurements can be made with an affordable spectrum analyzer that
has suitable sensitivity, bandwidth and detectors. The recent advent of lower cost spectrum analyzers has made EMC
pre-compliance testing affordable - and essential - for any company which develops electronic products, and offers
an excellent return on investment.
An LISN is basically a filter inserted between the supply input terminals of the DUT and the supply which is
used to power it. It presents a defined impedance for the noise which is produced by the DUT and emitted via the
supply cables of the DUT. The impedance seen by the conducted RF emissions is 50ohms in parallel with 50uH. Having
a defined impedance for the emissions at the DUT terminals eliminates any influence of the power source impedance.
The TBLC08 LISN's RF output section is AC coupled to either line or neutral, selected by a rotary switch on the
front panel. This RF section also contains an attenuator/limiter and a high pass filter to attenuate harmonics originating
from the mains supply. The attenuator/limiter protects the measurement receiver / spectrum analyzer input from high
amplitude pulse transients. When performing conducted noise measurements with handheld devices such as power tools,
hair driers, or kitchen tools, the Artificial Hand Network mimics the influence of a human hand.
Manufactured by Singapore-based Tekbox Digital Solutions, the TBLC08 Line Impedance Stabilization Network is
available now from their authorized North American distributor Saelig Company, Inc. Fairport, NY. For detailed specifications,
free technical assistance, or additional information, please contact Saelig at 888-7SAELIG, via email: firstname.lastname@example.org,
or by visiting
About Saelig Company, Inc.
Founded in 1988 in Rochester, New York, Saelig is a North American distributor with a growing reputation for
finding and sourcing unique, easy-to-use control and instrumentation products and related active components, for
use in a variety of industries. Products lines are continuously added from sources across the globe, and are offered
at highly competitive prices, accompanied by full in-house technical support, exceptional customer service, and
fast delivery. For full details of available product lines, please visit
Saelig Company, Inc.
71 Perinton Parkway
Fairport, NY 14450
Tel: (585) 385-1750
Posted August 24, 2015