Product category:
Electrical and Electronic Testing and PAT Equipment
News Release from: TTi (Thurlby Thandar Instruments) | Subject: LISN1600
Edited by the Engineeringtalk Editorial
Team on 06 October 2003
Power network aids EMC compliance
testing
The LISN1600 is a line impedance stabilisation network for compliance level measurements of conducted EMC emissions on equipment operating from a single-phase AC supply.
The LISN1600 from TTi (Thurlby Thandar Instruments) is a line impedance stabilisation network capable of providing compliance level measurements of conducted EMC emissions at the supply input of any piece of electrical or electronic equipment operating from a single-phase AC supply The instrument is designed for use in conjunction with a spectrum analyser or a measurement receiver
This article was originally published on Engineeringtalk on 5 Mar 2001 at 8.00am (UK)
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It has a continuous current rating of 16A, making it suitable for virtually all types of single-phase equipment.
The LISN1600 can be purchased with a variety of output connectors including IEC 16A, UK 13A and other European standard connector sockets.
The instrument fully meets the requirements of CISPR16 for measurements in both band A (10 to 150kHz) and band B (150kHz to 30MHz).
A switchable 150kHz filter is incorporated to limit low-frequency signals (particularly AC line frequency) when measuring in band B.
This reduces the dynamic range requirements of the measuring device.
The LISN1600 incorporates a voltage limiter to protect the vulnerable input of the measuring device against damage from power switching or interference transients.
To avoid the risk of introducing nonlinearity errors, the limiter diodes are held in reverse bias by a built-in lithium battery.
The limiter has a 10dB pre-attenuator and a switchable 10dB post-attenuator.
If required, the whole limiter/attenuator network can be switched out.
The measurement circuit can be connected to either supply line or disconnected altogether for checking the noise floor.
Source selection can be remotely controlled by built-in relays where automated measurement sequences are required.
For testing handheld apparatus which does not have an earth connection, an artificial hand connection is provided.
This conforms to the definitions in EN55014.
The LISN1600 is housed in a robust case suitable for bench or rack use measuring 132 x 212 x 315mm (3U half rack).
It costs GBP 950 (plus VAT) in the UK.
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