Publicité
Les langues disponibles
Les langues disponibles
PE 1515
The + terminal of the load must then be connected to terminal 8 of the terminal strip and the
- terminal of the load to terminal
9 of the terminal strip by means
of extra leads (see fig. 5b).
Terminals
3 and 4, and 6 and 7 must be interconnected
(see fig. 5b).
The leads to terminals
8 and 9 must be twisted or screened.
Voltage loss in the current-carrying leads to the load must not exceed 1 V (0.5 V per line);
otherwise
leads of a larger diameter must be used.
. Remote
voltage programming
The voltage can be remotely set by means
of an external rheostat of 1 kQ per volt output voltage
or with an extra adjustable voltage source of 1 V per voltage output voltage (1 mA).
For connection of the external rheostat see fig. 5c and for connection of the voltage source
see fig. 5d.
The knob marked
"U" must be turned fully clockwise.
The leads to terminals
7 and 8 of the
terminal
strip must be twisted or screened.
The current can also be remotely set by means
of of an external rheostat of 28 Q per ampere
output current (this control is not entirely linear) or with an external adjustable voltage source
of 14 mV per ampere output current (1 mA).
The maximum
voltage of the voltage source may
not exceed
175 mV.
For connection of the external rheostat see fig. 5e and for connection of the voltage source
see fig. of.
By use of a voltage source the knob marked
"I" must be turned fully clockwise.
. Series
connection
Three stabilizers maximum
may be connected in series to obtain an output voltage higher than
30 V. The voltage between any one of the output terminals and earth may not exceed 90 V =
,
Series connection according to "master and slave" system is also possible (see fig. 5g).
If this system is used, the total output voltage can be adjusted with the voltage control of one
set (the so-called
''master'').
Knob marked
"U" of the other sets connected in series (the "slaves"')
must then be turned fully anti-clockwise and knob marked
"I" fully clockwise.
Parallel connection
Several stabilizers may be connected in parallel to obtain a higher output current; in this case,
the over-voltage protections (crowbars) must be parallel connected (terminal 10 of the terminal
strip of each apparatus must be interconnected).
Parallel connection according to "master and slave" system is also possible (see fig. 5h).
If this system is used,
the output voltage and the total output current can be adjusted with the
control knobs
"U" and "I" of one set (master).
Knobs
"U" and "I" of the other sets connected in parallel (slaves) must then be turned fully
clockwise.
Publicité
