EMC Test System for Automotive Electronics Schaffner NSG 500C/506C The NSG500C unit contains two generators in a compact form; one for the microsecond pulse range (pulses 1 and 2) and the other for the fast pulse bursts in the nanosecond range (pulses 3a and 3b), together with a common control section. The rise time, pulse width and amplitude of the pulses 1 and 2 can be varied within wide limits.  Facilities are provided to connect external impedances to match the generator to the conditions such as are to be found in a vehicle's supply system. The pulse bursts, 3a and 3b, can be set in amplitude and polarity to suit the test specification. The front panel is equipped with a presettable counter which enables automatic tests to be carried out for a predetermined time or number of cycles.  Triggering can be set for manual or external operation and a trigger output is provided to drive an oscilloscope. Dampening of the interference pulses by the supply source is prevented by a built-in network. NSG500C Pulse 1 * Peak Voltage: -30 to -300 V * Risetime: 1 / 2 / 3 / 4 µs * Pulse width: 50 / 200 µs / 2 ms * Repetition rate: 0.5 / 5 s * Selectable Battery Off time: 200 ms * Source Impedance: 4 / 10 / 20 / 30 / 40 / 50 ohm Pulse 2 * Peak Voltage: +30 to +300 V * Risetime: 1 / 2 / 3 / 4 µs * Pulse width: 50 / 200 µs / 2 ms * Repetition rate: 0.5 / 5 s * Selectable Battery Off time: 200 ms * Source Impedance: 4 / 10 / 20 / 30 / 40 / 50 ohm Pulses 3a/3b * Peak Voltage: +-40 to +-200 V * Risetime: 5 ns * Pulse width: 100 ns * Repetition rate: 100 µs * Burst Length: 10 ms * Time between burst groups: 90 ms * Source Impedance: 50 ohm Operating Modes: * Single pulses or bursts * Manual or external triggering * Repetitive pulses or bursts * Repetition frequency according to pulse type Test Duration: Settable with built-in preselection counter for defined time or number of pulses: 1 - 999999 secs or 1 - 999999 pulses External Trigger: TTL input. 0=true; also suitable for a momentary push-button CRO Trigger: trigger output + 10V, Tr 1.5µs DUT Supply Voltage: 12 - 30 Vdc DUT Supply Current: 25A max. (circuit breaker) DUT Connection: Universal connector sockets Weight: 16 - 20 kg (35-44 lbs) approx. Applicable Standards: ISO 12V; ISO DP 7637/1 ISO 24V; ISO DP 7637/2 SAE J 1113 DIN 40839-T3 NSG506C The two-part Generator, Type NSG506C, has been designed as an auxiliary unit for the NSG500C and enables the production of high energy pulses (pulses 5 and 7). Pulse 5 * Peak Voltage: 0 to +200 V * Risetime: 0.1 / > 5  <10 ms * Pulse width: 40 / 100 / 150 / 200 / 300 / 350 / 400 / 500 ms * Source Impedance: 0.5 to 5.5 ohm Pulse 7 * Peak Voltage: 0 to -200 V * Risetime: 0.1 / > 5  <10 ms * Pulse width: 40 / 100 / 150 / 200 / 300 / 350 / 400 / 500 ms * Source Impedance: 8.5 to 13.5 ohm Storage Capacitor: 47 000µF Energy: 940 Joule max. Pulse Triggering: controlled via the NSG500C; manual; external trigger; automatic (pulse interval 5 secs) Pulse Interval: 5 secs min. Weight: 36 kg approx. (79 lbs) (part 1 and 2) Please contact us for more information on the Schaffner NSG 500C/506C system