{"product_id":"schwarzbeck-nnbm-8124-200","title":"Schwarzbeck NNBM 8124-200 - Rent 5uH 200 Amp LISN","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe main application of the unsymmetrical single path AMN (artificial mains network) NNBM 8124-200 is the measurement of interference voltage in vehicles, aircrafts and ships in the HF-VHF range 0.1 – 150 MHz. The NNBM 8124-200 can also be used for bulk current injection (BCI) testing or for transient measurements according to ISO 7637-2.\u003c\/p\u003e\n\u003cp\u003eThe impedance characteristic is realized according to CISPR 16 \/ 25 and MIL-STD-461F (5 µH + 1 Ω) || 50 Ω. With the optional external capacitor CAP 10-200 it can be used for DO-160 and DEF-STAN-59 as well. \u003c\/p\u003e\n\u003cp\u003eThe continuous current rating is 200 A, for short time more than 280 A are possible. The EuT is connected to the wing terminals at the front panel. The mains terminals are on the backside\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInterference voltage measurements acc. to CISPR 25 or MIL-STD-461F:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMains has to be connected to the back side. The 1 µF capacitor must be switched on to filter external disturbance and to provide best isolation values. \u003c\/p\u003e\n\u003cp\u003eThe DuT has to be connected to the front panel. The disturbance voltage is coupled to the BNC connector where it can be measured with an EMI receiver.\u003c\/p\u003e\n\u003cp\u003eThe switch at the front panel must be switched to “Measure”. In most cases one AMN for each line (e.g. + and -) must be used. In this case one NNBM 8124-200 must be connected to the “+” line with its red terminals and another one to the “-“ line, also to the red wing terminal.\u003c\/p\u003e\n\u003cp\u003eThe LISN of the line that is being measured has to be switched to “Measure”, the other one has to be terminated by switching the front panel switch to “50 Ohm termination”. The RFreference ground must be connected to the GND-terminals.\u003c\/p\u003e\n\u003cp\u003eThe 4 mm laboratory jacks at front- and back panel and the flat aluminium feet are electrically connected GND-terminals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImmunity tests with bulk current injection (BCI-tests): \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe NNBM 8124-200 can be used for bulk current injection tests together with suitable current injection clamps. \u003c\/p\u003e\n\u003cp\u003eThe maximum continuous power rating is 50 W at the EuT-terminals. With a continuous power input of 50 W the LISN housing heats up to approx. 60°C at the front panel. The operator must be aware of high temperatures.\u003c\/p\u003e\n\u003cp\u003eA sufficient air-circulation must be provided to avoid overheating of the LISN. The LISN must not be covered by all means to provide good air ventilation. \u003c\/p\u003e\n\u003cp\u003eA light smell of coating and insulating material may appear in the first hours of operation. Ensure proper ventilation of the test rooms. The smell will reduce after few hours of operating. \u003c\/p\u003e\n\u003cp\u003eDuring bulk current injection tests danger may arise by high field strengths and temperatures (fire hazard!), therefore these tests must be carried out by qualified personnel only! The relevant safety precautions must be considered!  \u003c\/p\u003e\n\u003cp\u003eFor BCI-tests the switch position \"50 Ohm Termination\" is used. The power injected at the EuT-terminals is converted to heat inside the 50 Ω \/ 50 W resistors. \u003c\/p\u003e","brand":"Schwarzbeck","offers":[{"title":"Default Title","offer_id":48936759951612,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1826\/1151\/files\/Schwarzbeck_NNBM_8124-200_3-1000x800_logo.jpg?v=1775655190","url":"https:\/\/transientspecialists.com\/products\/schwarzbeck-nnbm-8124-200","provider":"Transient Specialists","version":"1.0","type":"link"}