F&F ZI-11 Manual

Low voltage
pulse stabiliser
Do not dispose of this device in the trash along with other waste!
According to the Law on Waste, electro coming from households free of charge and can
give any amount to up to that end point of collec� on, as well as to store the occasion of
the purchase of new equipment (in accordance with the principle of old-for-new, regard-
less of brand). Electro thrown in the trash or abandoned in nature, pose a threat to the
environment and human health.
Purpose
The ZI-11 stabiliser is used to supply electrical and electronic
equipment with medium power consumption, which requires
a stable, filtered supply voltage independent of mains voltage
variations.
Functioning
AC or DC voltage (pulsed or filtered) can be connected to the
input terminals. Due to the high operating frequency of the
inverter, some very sensitive radio or microprocessor devices
may malfunction. It is recommended to install an additional fil-
ter (consisting of a current-compensated choke with inductan-
ce 2×5-15 mH and capacitor C= 0.33-1µF) between the power
supply and the load. When increasing the load above Imax, the
power supply will stabilise the current and the output voltage
will drop.
When the output terminals are short-circuited, the power sup-
ply operates at a frequency of approximately 1.5 kHz, which ma-
nifests itself as a distinct squeal.
ZI-11
F&F Filipowski sp. j.
Konstantynowska 79/81, 95-200 Pabianice, POLAND
phone/fax (+48 42) 215 23 83 / (+48 42) 227 09 71
www.fif.com.pl; e-mail: biuro@fif.com.pl
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